The ultimate SMD marking codes database

Due to the small size of most SMD components, manufacturers are not able to write the full part number on the case. They use instead a marking code typically composed of a combination of 2 or 3 letters or digits. When repairing an unknown electronic board, it becomes so difficult to know what is the exact type of a given component. This database allows to quickly find the part number of a SMD component when you have only the marking code.

Showing codes starting with '55'

Marking
Name
Manufacturer/Case
Function
55
74AUP1Z125GF
NXP Semiconductors
SOT891
Capacitance diode
X-tal driver with enable and internal resistor
55
74AUP1Z125GM
NXP Semiconductors
SOT886
Capacitance diode
X-tal driver with enable and internal resistor
55
74AUP1Z125GW
NXP Semiconductors
SOT-363
Capacitance diode
X-tal driver with enable and internal resistor
55
AP8822N-25GA
Anwell Semiconductor
SOT-23
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms, Halogen-fre
55
AP8822N-25GI
Anwell Semiconductor
SC-82
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms, Halogen-fre
55
AP8822N-25GS
Anwell Semiconductor
SC-82S
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms, Halogen-fre
55
AP8822N-25GT
Anwell Semiconductor
SC-70
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms, Halogen-fre
55
AP8822N-25PA
Anwell Semiconductor
SOT-23
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms
55
AP8822N-25PI
Anwell Semiconductor
SC-82
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms
55
AP8822N-25PS
Anwell Semiconductor
SC-82S
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms
55
AP8822N-25PT
Anwell Semiconductor
SC-70
Voltage detector IC
2.5V±2%, -Reset ODO, 200ms
55
BAT17-05
Siemens
SOT-23
Diode
Dual, Schottky, 4V, 130mA, Vf<0.6V(10mA), Cd<0.75pF
55
BBY57-02L
Infineon Technologies
TSLP-2-1
Capacitance diode
VCO-tuning, 10V, 20mA, 16.5..18.6pF(4..1V)
55
BBY57-02W
Infineon Technologies
SCD-80
Capacitance diode
VCO-tuning, 10V, 20mA, 16.5..18.6pF(4..1V)
55
CHDTC123JMPT
Chenmko Enterprise
SOT-723
NPN transistor
Sw, 50V, 100mA, 250MHz, R1/R2=2.2k/47k
55
EDZ16B
Rohm
SOD-523
Zener diode
15.85..16.51V, Izt=5mA, Zzt=50, 150mW
55
EDZV16B
Rohm
SOD-523
Zener diode
15.85..16.51V, Izt=5.0mA, Zzt=50, 150mW
55
ELM9755NAB
ELM Technology
SOT-89
Voltage detector IC
5.5V±2.5%, +Reset ODO
55
ELM9755NBB
ELM Technology
SOT-23
Voltage detector IC
5.5V±2.5%, +Reset ODO
55
ELM9855BB
ELM Technology
SOT-23
Linear voltage regulator IC
5.5V±2%, 200mA
55
FDZ16EV
First Silion
SOD-523
Zener diode
15.850..16.510V, Izt=5mA, Zzt=50, 150mW
55
FDZ16VT
First Silion
SOD-323
Zener diode
15.850..16.510V, Izt=5mA, Zzt=50, 200mW
55
FSD273TA-A
Zetex
SOT-323
Capacitance diode
Dual, Hyperabrupt varicap, 12V, 100mA, 45/32.5pF(0.5..1.5V)
55
Gali-55
Mini-Circuits
SOT-89
Monolithic microwave IC
RF amplifier, DC..4GHz, 15.7dB (50)
55
GDZ3V3B-V-G
Vishay Semiconductor
SOD-323
Zener diode
3.32..3.53V, Izt=5mA, Zzt=120, 200mW
55
HMSZ5255B
Hi-Sincerity Microelectronics
SOD-323
Zener diode
28V±5%, Izt=4.5mA, Zzt=44, 225mW
55
LBZT52B16T1G
Leshan Radio Company
SOD-123
Zener diode
15.85..16.51V, Izt=5mA, 500mW
55
LEDZ16BT1G
Leshan Radio Company
SOD-523
Zener diode
15.85..16.51V, Izt=5mA, 150mW
55
LM4855IBL
National Semiconductor
BGA-20
Linear IC
AF PA, BTL, 2.7..5.5V, 1.1W(8)+2x115mW(32), SPI
55
LUDZS16BT1G
Leshan Radio Company
SOD-323
Zener diode
15.85..16.51V, Izt=5mA, 200mW
55
MIC5365-1.3YMT
Micrel
MLF-4
Linear voltage regulator IC
LDO, 1.3V±2%, 150mA, +CE
55
MM5Z3V9
Fairchild Semiconductor
SOD-523FL
Zener diode
3.7..4.1V, Zzt=90, Izt=5mA, 200mW
55
R3111Q551B
Ricoh
SC-82AB
Voltage detector IC
5.5V±2%, +Reset ODO
55
RN5RF55AA
Ricoh
SOT-23-5
Linear voltage regulator IC
LRip, -CE, 5.5V±2%, 1A*
55
RN5RZ55AA
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, LN, 5.5V±2%, 100mA, -CE
55
RP110L281C5
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.85V±1%, 150mA
55
TCBZX584C3V9
Tak Cheong Semiconductor
SOD-523FL
Zener diode
3.7..4.1V, Izt=5mA, Zzt=90, 200mW
55
TCMM5Z3V9
Tak Cheong Semiconductor
SOD-523FL
Zener diode
3.7..4.1V, Izt=5mA, Zzt=90, 200mW
55
TDZ16B
Rohm
TUMD2
Zener diode
16V±2.5%, Izt=10mA, 500mW
55
UDZS16B
Rohm
SOD-323FL
Zener diode
16V±2.5%, Izt=5mA, 200mW
55
UDZS16B
Weitron Technology
SOD-323
Zener diode
15.85..16.51V, Izt=5mA, Zzt=50, 200mW
55
UDZV16B
Rohm
SOD-323
Zener diode
15.85..16.51V, Izt=5.0mA, Zzt=50, 200mW
55
VDZS16B
Rohm
VMD2
Zener diode
16V±5%, 5mA, 100mW
55
XC6221D4317R
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 4.3V±1%, 200mA, +CE, CL, PDR
55
XC6221D431NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 4.3V±1%, 200mA, +CE, CL, PDR
55
XC6223F1519R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 1.5V±20mV, 300mA, +CE, CL, ICP
55
XC62EP5502MR-G
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, boosted, 5.5V±2%, 1A, -CE
55
XC62ER5502MR-G
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, boosted, 5.5V±2%, 1A, +CE
55
XC6420AB557R-G
Torex Semiconductor
USPN-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.30/3.00V±2%, 150mA, +CE
55
XC6420AB55DR-G
Torex Semiconductor
USP-6B04
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.30/3.00V±2%, 150mA, +CE
55
ZD5255BS2
Cystech Electronics
SOD-323
Zener diode
28V±5%, 4.5mA, Zzt=44, 500mW
55-
XC62HR5502MR-G
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 5.5V±2%, 165mA, +CE
55-
XC62HR5502PR-G
Torex Semiconductor
SOT-89-5
Linear voltage regulator IC
LDO, 5.5V±2%, 165mA, +CE
55.0
S5KP5.0
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=6.40..7.30V, Vrwm=5.0V, 520A, 5000W(1ms)
55.0A
S5KP5.0A
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=6.40..7.00V, Vrwm=5.0V, 543A, 5000W(1ms)
55.0C
S5KP5.0C
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=6.40..7.30V, Vrwm=5.0V, 520A, 5000W(1ms), Bidir.
55.0CA
S5KP5.0CA
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=6.40..7.00V, Vrwm=5.0V, 543A, 5000W(1ms), Bidir.
550
F1C550
Origin Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=40V, 7A, 500W(1ms)
550
R1191N150B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 15.0V±1.5%, 300mA, +CE, ECO
550
TK11550M
Toko America
SOP-8
Linear voltage regulator IC
LDO, 5.0V±1.5%, 130mA, ±CE
550
XC9111A501MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.0V±2.5%, 400mA
550
XC9111A501PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.0V±2.5%, 400mA
550
XC9111C501MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.0V±2.5%, 400mA, +CE
550A
1.5SMC550A
MDE Semiconductor
DO-214AB
Transient voltage supressor
Vrwm=467.0V, Vbr=467..522V, Ipp=2.0A, 1500W(1ms)
550A
1.5SMC550A
Feeling Team
DO-214AB
Transient voltage supressor
Vrwm=467.0V, Vbr=467..522V, Ipp=2.0A, 1500W(1ms)
550A
1.5SMC550A
Littelfuse
DO-214AB
Transient voltage supressor
Vrwm=467.0V, Vbr=467..522V, Ipp=2.0A, 1500W(1ms)
550A
SMAJP4KE550A
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vrwm=495.0V, Vbr=522.50..577.50V, Ipp=0.5A, 400W(1ms)
550A
SMBJP6KE550A
Micro Commercial Components
DO-214AA
Transient voltage supressor
Vrwm=495.0V, Vbr=522.50..577.50 V, Ipp=0.8A, 600W(1ms)
550A
SMCJ1.5KE550A
Micro Commercial Components
DO-214AB
Transient voltage supressor
Vrwm=495.0V, Vbr=522.50..577.50V, Ipp=2.0A, 1500W(1ms)
550A
TVP04A551A-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vbr=522.50..577.50V, Vrwm=470.3V, Ipp=0.53A, 400W(1ms)
550A
TVP06B551A-G
Comchip Technology
DO-214AA
Transient voltage supressor
Vrwm=470.3V, Vbr=522.50..577.50V, Ipp=0.79A, 600W(1ms)
550AC
BL8509-550ACRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=50ms
550AC
BL8509-550ACRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=50ms
550AC
LC9009CB3TR550AC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=50ms
550AC
LC9009CB5TR550AC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=50ms
550AN
BL8509-550ANRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=50ms
550AN
BL8509-550ANRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=50ms
550AN
LC9009CB3TR550AN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=50ms
550AN
LC9009CB5TR550AN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=50ms
550BC
BL8509-550BCRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=100ms
550BC
BL8509-550BCRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=100ms
550BC
LC9009CB3TR550BC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=100ms
550BC
LC9009CB5TR550BC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=100ms
550BN
BL8509-550BNRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=100ms
550BN
BL8509-550BNRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=100ms
550BN
LC9009CB3TR550BN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=100ms
550BN
LC9009CB5TR550BN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=100ms
550C
1.5SMC550CA
Feeling Team
DO-214AB
Transient voltage supressor
Vrwm=467.0V, Vbr=467..522V, Ipp=2.0A, 1500W(1ms), Bidir.
550C
1.5SMC550CA
MDE Semiconductor
DO-214AB
Transient voltage supressor
Vrwm=467.0V, Vbr=467..522V, Ipp=2.0A, 1500W(1ms), Bidir.
550C
1.5SMC550CA
Littelfuse
DO-214AB
Transient voltage supressor
Vrwm=467.0V, Vbr=467..522V, Ipp=2.0A, 1500W(1ms), Bidir.
550C
SMAJP4KE550CA
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vrwm=495.0V, Vbr=522.50..577.50V, Ipp=0.5A, 400W(1ms), Bidir.
550C
SMBJP6KE550CA
Micro Commercial Components
DO-214AA
Transient voltage supressor
Vrwm=495.0V, Vbr=522.50..577.50V, Ipp=0.8A, 600W(1ms), Bidir.
550C
SMCJ1.5KE550CA
Micro Commercial Components
DO-214AB
Transient voltage supressor
Vrwm=495.0V, Vbr=522.50..577.50V, Ipp=2.0A, 1500W(1ms), Bidir.
550C
TVP04A551CA-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vbr=522.50..577.50V, Vrwm=470.3V, Ipp=0.53A, 400W(1ms), Bidir.
550C
TVP06B551ACA-G
Comchip Technology
DO-214AA
Transient voltage supressor
Vrwm=470.3V, Vbr=522.50..577.50V, Ipp=0.79A, 600W(1ms), Bidir.
550CC
BL8509-550CCRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=150ms
550CC
BL8509-550CCRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=150ms
550CC
LC9009CB3TR550CC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=150ms
550CC
LC9009CB5TR550CC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=150ms
550CN
BL8509-550CNRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=150ms
550CN
BL8509-550CNRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=150ms
550CN
LC9009CB3TR550CN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=150ms
550CN
LC9009CB5TR550CN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=150ms
550DC
BL8509-550DCRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=200ms
550DC
BL8509-550DCRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=200ms
550DC
LC9009CB3TR550DC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=200ms
550DC
LC9009CB5TR550DC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=200ms
550DN
BL8509-550DNRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=200ms
550DN
BL8509-550DNRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=200ms
550DN
LC9009CB3TR550DN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=200ms
550DN
LC9009CB5TR550DN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=200ms
550E
HMC550E
Hittite Microwave
SOT-26
Monolithic microwave IC
GaAs, SPST failsafe switch, DC-6GHz
550EC
BL8509-550ECRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=250ms
550EC
BL8509-550ECRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=250ms
550EC
LC9009CB3TR550EC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=250ms
550EC
LC9009CB5TR550EC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=250ms
550EN
BL8509-550ENRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=250ms
550EN
BL8509-550ENRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=250ms
550EN
LC9009CB3TR550EN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=250ms
550EN
LC9009CB5TR550EN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=250ms
550FC
BL8509-550FCRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=300ms
550FC
BL8509-550FCRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=300ms
550FC
LC9009CB3TR550FC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=300ms
550FC
LC9009CB5TR550FC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=300ms
550FN
BL8509-550FNRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=300ms
550FN
BL8509-550FNRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=300ms
550FN
LC9009CB3TR550FN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=300ms
550FN
LC9009CB5TR550FN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=300ms
550GC
BL8509-550GCRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Td=400ms
550GC
BL8509-550GCRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Td=400ms
550GC
LC9009CB3TR550GC
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=400ms
550GC
LC9009CB5TR550GC
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO, Rtd=400ms
550GN
BL8509-550GNRM
Shanghai Belling
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Td=400ms
550GN
BL8509-550GNRN
Shanghai Belling
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Td=400ms
550GN
LC9009CB3TR550GN
Shanghai LeadChip Microelectronics
SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=400ms
550GN
LC9009CB5TR550GN
Shanghai LeadChip Microelectronics
SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO, Rtd=400ms
551
FMMT551
Zetex
SOT-23
PNP transistor
AF, 80V, 1A, 500mW, B=50..150, >150MHz
551
S5KP51
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=56.7..69.3V, Vrwm=51V, 55A, 5000W(1ms)
551
XC9111A511MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.1V±2.5%, 400mA
551
XC9111A511PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.1V±2.5%, 400mA
551
XC9111C511MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.1V±2.5%, 400mA, +CE
5510
SZ5510
EIC Semiconductor
DO-214AC
Zener diode
10V±5%, Izt=75, Zzt=3.5, 3W
5511
SZ5511
EIC Semiconductor
DO-214AC
Zener diode
11V±5%, Izt=68mA, Zzt=4, 3W
5512
SZ5512
EIC Semiconductor
DO-214AC
Zener diode
12V±5%, Izt=63mA, Zzt=4.5, 3W
5513
SZ5513
EIC Semiconductor
DO-214AC
Zener diode
13V±5%, Izt=58mA, Zzt=4.5, 3W
5514
SZ5514
EIC Semiconductor
DO-214AC
Zener diode
14V±5%, Izt=53mA, Zzt=5, 3W
5515
SZ5515
EIC Semiconductor
DO-214AC
Zener diode
15V±5%, Izt=50mA, Zzt=5.5, 3W
5516
SZ5516
EIC Semiconductor
DO-214AC
Zener diode
16V±5%, Izt=47mA, Zzt=5.5, 3W
5517
SZ5517
EIC Semiconductor
DO-214AC
Zener diode
17V±5%, Izt=44mA, Zzt=6, 3W
5518
SZ5518
EIC Semiconductor
DO-214AC
Zener diode
18V±5%, Izt=42mA, Zzt=6, 3W
5519
SZ5519
EIC Semiconductor
DO-214AC
Zener diode
19V±5%, Izt=40mA, Zzt=7, 3W
551A
S5KP51A
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=56.7..62.7V, Vrwm=51V, 61A, 5000W(1ms)
551C
S5KP51C
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=56.7..69.3V, Vrwm=51V, 55A, 5000W(1ms), Bidir.
551CA
S5KP51CA
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=56.7..62.7V, Vrwm=51V, 61A, 5000W(1ms), Bidir.
552
XC9111A521MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.2V±2.5%, 400mA
552
XC9111A521PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.2V±2.5%, 400mA
552
XC9111C521MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.2V±2.5%, 400mA, +CE
5520
SZ5520
EIC Semiconductor
DO-214AC
Zener diode
20V±5%, Izt=37mA, Zzt=7, 3W
5522
SZ5522
EIC Semiconductor
DO-214AC
Zener diode
22V±5%, Izt=34mA, Zzt=8, 3W
5524
SZ5524
EIC Semiconductor
DO-214AC
Zener diode
24V±5%, Izt=31mA, Zzt=9, 3W
5527
SZ5527
EIC Semiconductor
DO-214AC
Zener diode
27V±5%, Izt=28mA, Zzt=10, 3W
5528
SZ5528
EIC Semiconductor
DO-214AC
Zener diode
28V±5%, Izt=27mA, Zzt=12, 3W
553
XC9111A531MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.3V±2.5%, 400mA
553
XC9111A531PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.3V±2.5%, 400mA
553
XC9111C531MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.3V±2.5%, 400mA, +CE
5530
SZ5530
EIC Semiconductor
DO-214AC
Zener diode
30V±5%, Izt=25mA, Zzt=16, 3W
5533
SZ5533
EIC Semiconductor
DO-214AC
Zener diode
33V±5%, Izt=23mA, Zzt=20, 3W
5536
SZ5536
EIC Semiconductor
DO-214AC
Zener diode
36V±5%, Izt=21mA, Zzt=22, 3W
5539
SZ5539
EIC Semiconductor
DO-214AC
Zener diode
39V±5%, Izt=19mA, Zzt=28, 3W
553J
SZ553J
EIC Semiconductor
DO-214AC
Zener diode
3.9V±5%, Izt=192mA, Zzt=4.5, 3W
554
S5KP54
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=60.0..73.3V, Vrwm=54V, 52A, 5000W(1ms)
554
XC9111A541MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.4V±2.5%, 400mA
554
XC9111A541PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.4V±2.5%, 400mA
554
XC9111C541MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.4V±2.5%, 400mA, +CE
5543
SZ5543
EIC Semiconductor
DO-214AC
Zener diode
43V±5%, Izt=17mA, Zzt=33, 3W
5547
SZ5547
EIC Semiconductor
DO-214AC
Zener diode
47V±5%, Izt=16mA, Zzt=38, 3W
554A
S5KP54A
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=60.0..66.3V, Vrwm=54V, 57A, 5000W(1ms)
554C
S5KP54C
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=60.0..73.3V, Vrwm=54V, 52A, 5000W(1ms), Bidir.
554CA
S5KP54CA
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=60.0..66.3V, Vrwm=54V, 57A, 5000W(1ms), Bidir.
554D
SZ554D
EIC Semiconductor
DO-214AC
Zener diode
4.3V±5%, Izt=174mA, Zzt=4.5, 3W
554H
SZ554H
EIC Semiconductor
DO-214AC
Zener diode
4.7V±5%, Izt=160mA, Zzt=4, 3W
555
FCX555
Zetex
SOT-89
PNP transistor
Dr/Out, 180V, 750mA, 1.5W, B=100..300, 100MHz
555
FMMT555
Zetex
SOT-23
PNP transistor
Vid, 160V, 1A, 500mW, B=50..300, >100MHz
555
TK11555M
Toko America
SOP-8
Linear voltage regulator IC
LDO, 5.5V±1.5%, 130mA, ±CE
555
XC9111A551MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.5V±2.5%, 400mA
555
XC9111A551PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.5V±2.5%, 400mA
555
XC9111C551MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.5V±2.5%, 400mA, +CE
5551
SZ5551
EIC Semiconductor
DO-214AC
Zener diode
51V±5%, Izt=15mA, Zzt=45, 3W
5551A
CZT5551A
Secos
SOT-223
NPN transistor
GP, 180V, 600mA, 1.5W, B=80..200, <300MHz
5551A
CZT5551C
Secos
SOT-223
NPN transistor
GP, 180V, 600mA, 1.5W, B=160..400, <300MHz
5551A
CZT5551N
Secos
SOT-223
NPN transistor
GP, 180V, 600mA, 1.5W, B=100..240, <300MHz
5551A
PZT5551A
Weitron Technology
SOT-223
NPN transistor
Drv, 180V, 600mA, 1.5W, B=80..200, <300MHz
5551B
PZT5551B
Weitron Technology
SOT-223
NPN transistor
Drv, 180V, 600mA, 1.5W, B=100..250, <300MHz
5551C
PZT5551C
Weitron Technology
SOT-223
NPN transistor
Drv, 180V, 600mA, 1.5W, B=160..400, <300MHz
5556
SZ5556
EIC Semiconductor
DO-214AC
Zener diode
56V±5%, Izt=13mA, Zzt=50, 3W
555B
SZ555B
EIC Semiconductor
DO-214AC
Zener diode
5.1V±5%, Izt=147mA, Zzt=3.5, 3W
555G
SZ555G
EIC Semiconductor
DO-214AC
Zener diode
5.6V±5%, Izt=134mA, Zzt=2.5, 3W
556
S5KP56
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=62.2..76.1V, Vrwm=56V, 50A, 5000W(1ms)
556
XC9111A561MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.6V±2.5%, 400mA
556
XC9111A561PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.6V±2.5%, 400mA
556
XC9111C561MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.6V±2.5%, 400mA, +CE
5562
SZ5562
EIC Semiconductor
DO-214AC
Zener diode
62V±5%, Izt=12mA, Zzt=55, 3W
5564
CHT5564XPT
Chenmko Enterprise
SOT-89
NPN transistor
AF, Sw, 15V, 6A, B>250, 380MHz
5568
SZ5568
EIC Semiconductor
DO-214AC
Zener diode
68V±5%, Izt=11mA, Zzt=70, 3W
556A
S5KP56A
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=62.2..68.8V, Vrwm=56V, 55A, 5000W(1ms)
556C
S5KP56C
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=62.2..76.1V, Vrwm=56V, 50A, 5000W(1ms), Bidir.
556C
SZ556C
EIC Semiconductor
DO-214AC
Zener diode
6.2V±5%, Izt=121mA, Zzt=1.5, 3W
556CA
S5KP56CA
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=62.2..68.8V, Vrwm=56V, 55A, 5000W(1ms), Bidir.
556I
SZ556I
EIC Semiconductor
DO-214AC
Zener diode
6.8V±5%, Izt=110mA, Zzt=2, 3W
557
XC9111A571MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.7V±2.5%, 400mA
557
XC9111A571PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.7V±2.5%, 400mA
557
XC9111C571MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.7V±2.5%, 400mA, +CE
5575
SZ5575
EIC Semiconductor
DO-214AC
Zener diode
75V±5%, Izt=10mA, Zzt=85, 3W
557F
SZ557F
EIC Semiconductor
DO-214AC
Zener diode
7.5V±5%, Izt=100mA, Zzt=2, 3W
558
FMMT558
Zetex
SOT-23
PNP transistor
Vid, 400V, 150mA, 500mW, B=100..300, >50MHz
558
S5KP58
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=64.4..78.7V, Vrwm=58V, 49A, 5000W(1ms)
558
XC9111A581MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.8V±2.5%, 400mA
558
XC9111A581PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.8V±2.5%, 400mA
558
XC9111C581MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.8V±2.5%, 400mA, +CE
5582
SZ5582
EIC Semiconductor
DO-214AC
Zener diode
82V±5%, Izt=9.1mA, Zzt=95, 3W
558A
S5KP58A
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=64.4..71.2V, Vrwm=58V, 53A, 5000W(1ms)
558C
S5KP58C
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=64.4..78.7V, Vrwm=58V, 49A, 5000W(1ms), Bidir.
558C
SZ558C
EIC Semiconductor
DO-214AC
Zener diode
8.2V±5%, Izt=91mA, Zzt=2.3, 3W
558CA
S5KP58CA
EIC Semiconductor
TO-263
Transient voltage supressor
Vbr=64.4..71.2V, Vrwm=58V, 53A, 5000W(1ms), Bidir.
559
XC9111A591MR
Torex Semiconductor
SOT-23
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.9V±2.5%, 400mA
559
XC9111A591PR
Torex Semiconductor
SOT-89
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.9V±2.5%, 400mA
559
XC9111C591MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.9V±2.5%, 400mA, +CE
5591
SZ5591
EIC Semiconductor
DO-214AC
Zener diode
91V±5%, Izt=8.2mA, Zzt=115, 3W
559B
SZ559B
EIC Semiconductor
DO-214AC
Zener diode
9.1V±5%, Izt=82mA, Zzt=2.5, 3W
55A
AAT60055A-S15

SOT-143R
Voltage detector IC
5.5V±2%, -Reset ODO
55A
AAT60055A-S16

SOT-89
Voltage detector IC
5.5V±2%, -Reset ODO
55A
AAT60055A-S2

SOT-23
Voltage detector IC
5.5V±2%, -Reset ODO
55A
AAT60055A-S5

SOT-23-5
Voltage detector IC
5.5V±2%, -Reset ODO
55A
UM14225S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 2.5V±2%, 300mA
55B
AAT60055B-S15

SOT-143R
Voltage detector IC
5.5V±2%, -Reset PPO
55B
AAT60055B-S16

SOT-89
Voltage detector IC
5.5V±2%, -Reset PPO
55B
AAT60055B-S2

SOT-23
Voltage detector IC
5.5V±2%, -Reset PPO
55B
AAT60055B-S5

SOT-23-5
Voltage detector IC
5.5V±2%, -Reset PPO
55B
MMBZ5255BPT
Chenmko Enterprise
SOT-23
Zener diode
26.60..29.40V, Izt=5mA, Zzt=44, 225mW
55B
MMHZ5255BPT
Chenmko Enterprise
SOD-123
Zener diode
26.60..29.40V, Izt=5mA, Zzt=44, 225mW
55B
SMC5355B
Eris Technology
DO-214AB
Zener diode
18.0V±5%, Zzt=3.0(65.0mA), Izm=265.0mA, 5W
55B
UM14226S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 2.6V±2%, 300mA
55B0
SZ55B0
EIC Semiconductor
DO-214AC
Zener diode
100V±5%, Izt=7.5mA, Zzt=160, 3W
55B1
SZ55B1
EIC Semiconductor
DO-214AC
Zener diode
110V±5%, Izt=6.8mA, Zzt=225, 3W
55B2
SZ55B2
EIC Semiconductor
DO-214AC
Zener diode
120V±5%, Izt=6.3mA, Zzt=300, 3W
55B3
SZ55B3
EIC Semiconductor
DO-214AC
Zener diode
130V±5%, Izt=5.8mA, Zzt=375, 3W
55B4
SZ55B4
EIC Semiconductor
DO-214AC
Zener diode
140V±5%, Izt=5.3mA, Zzt=475, 3W
55B5
SZ55B5
EIC Semiconductor
DO-214AC
Zener diode
150V±5%, Izt=5mA, Zzt=550, 3W
55B6
SZ55B6
EIC Semiconductor
DO-214AC
Zener diode
160V±5%, Izt=4.7mA, Zzt=625, 3W
55B7
SZ55B7
EIC Semiconductor
DO-214AC
Zener diode
170V±5%, Izt=4.4mA, Zzt=650, 3W
55B8
SZ55B8
EIC Semiconductor
DO-214AC
Zener diode
180V±5%, Izt=4.2mA, Zzt=700, 3W
55B9
SZ55B9
EIC Semiconductor
DO-214AC
Zener diode
190V±5%, Izt=4mA, Zzt=800, 3W
55C
AAT60055C-S15

SOT-143R
Voltage detector IC
5.5V±1%, -Reset ODO
55C
AAT60055C-S16

SOT-89
Voltage detector IC
5.5V±1%, -Reset ODO
55C
AAT60055C-S2

SOT-23
Voltage detector IC
5.5V±1%, -Reset ODO
55C
AAT60055C-S5

SOT-23-5
Voltage detector IC
5.5V±1%, -Reset ODO
55C
CMUT5551
Central Semiconductor
SOT-523F
NPN transistor
HV, 180V, 600mA, 250mW, B=80..250, 300MHz
55C
UM14227S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 2.7V±2%, 300mA
55D
AAT60055D-S15

SOT-143R
Voltage detector IC
5.5V±1%, -Reset PPO
55D
AAT60055D-S16

SOT-89
Voltage detector IC
5.5V±1%, -Reset PPO
55D
AAT60055D-S2

SOT-23
Voltage detector IC
5.5V±1%, -Reset PPO
55D
AAT60055D-S5

SOT-23-5
Voltage detector IC
5.5V±1%, -Reset PPO
55D
UM14228S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 2.8V±2%, 300mA
55D0
SZ55D0
EIC Semiconductor
DO-214AC
Zener diode
200V±5%, Izt=3.7mA, Zzt=875, 3W
55E
UM14229S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 2.9V±2%, 300mA
55F
UM14230S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.0V±2%, 300mA
55G4
MIC5355-1.8/1.2YMME
Micrel
MSOP-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=1.8V/1.2V±2%, 500mA, +CE
55H
UM14231S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.1V±2%, 300mA
55J
UM14234S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.4V±2%, 300mA
55JG
MIC5355-2.5/1.8YMME
Micrel
MSOP-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=2.5V/.8V±2%, 500mA, +CE
55K
UM14235S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.5V±2%, 300mA
55L
UM14232S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.2V±2%, 300mA
55M
UM14233S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.3V±2%, 300mA
55N
UM14236S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.6V±2%, 300mA
55P
TK11255BM
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 5.5V±2%, 150mA, +CE
55P
TK11255BU
Toko America
SOT-89-5
Linear voltage regulator IC
LDO, 5.5V±2%, 150mA, +CE
55P
UM14237S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.7V±2%, 300mA
55Q
TK11355BM
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 5.5V±2%, 150mA, -CE
55Q
TK11355BU
Toko America
SOT-89-5
Linear voltage regulator IC
LDO, 5.5V±2%, 150mA, -CE
55Q
UM14238S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.8V±2%, 300mA
55R
S505TR
Vishay Semiconductor
SOT-143R
Monolithic microwave IC
UHF, 8V, 30mA, 200mW, Idss=8..16mA
55R
TK11355CM
Toko America
SOT-23L-6
Linear voltage regulator IC
LDO, 5.5V±5%, 170mA, -CE
55R
UM14239S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.9V±2%, 300mA
55s
BAT17-05W
Siemens
SOT-323
Diode
Dual, Schottky, 4V, 130mA, Vf<0.6V(10mA), Cd<0.75pF
55S
MMBZ5255SPT
Chenmko Enterprise
SOT-23
Zener diode
27.44..28.56V, Izt=5mA, Zzt=44, 225mW
55S
MMCZ5255SPT
Chenmko Enterprise
SOT-346
Zener diode
27.44..28.56V, Izt=5mA, Zzt=44, 225mW
55S
MMHZ5255SPT
Chenmko Enterprise
SOD-123
Zener diode
27.44..28.56V, Izt=5mA, Zzt=44, 225mW
55S
UM14240S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.0V±2%, 300mA
55S4
MIC5355-3.3/1.2YMME
Micrel
MSOP-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=3.3V/1.2V±2%, 500mA, +CE
55SC
MIC5355-3.3/1.0YMME
Micrel
MSOP-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=3.3V/1.0V±2%, 500mA, +CE
55SG
MIC5355-3.3/1.8YMME
Micrel
MSOP-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=3.3V/1.8V±2%, 500mA, +CE
55T
MMBZ5255BTW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 28V±5%, Izt=4.5mA, Zzt=44, 200mW
55T
UM14241S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.1V±2%, 300mA
55U
UM14243S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.3V±2%, 300mA
55Y
UM14242S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.2V±2%, 300mA
55Z
UM14244S
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.4V±2%, 300mA