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 'Y5'

Marking
Name
Manufacturer/Case
Function
Y5
APX809-31SR
Diodes
SOT-23
Voltage detector IC
3.08V±1.5%, -Reset PPO
y5
BD46E382G-M
Rohm
SSOP-5
Voltage detector IC
3.8V±1%, -MR, -Reset PPO, Td=200ms
Y5
BZF10C11
Diodesemi Technology
SOD-123F
Zener diode
10.5..11.6V, Izt=23mA, Zzt=8, 1W
Y5
BZT52C16T
Micro Commercial Components
SOD-523
Zener diode
16V±5%, Izt=5mA, Zzt=40, 100mW
Y5
BZT52C3V6-V-G
Vishay Semiconductor
SOD-123
Zener diode
3.6V±5%, Izt=5mA, Zzt=90, 500mW
Y5
BZV49-C16
Zetex
SOT-89
Zener diode
16V±5%, Izt=5mA, 1W
Y5
BZX384C3V6-V-G
Vishay Semiconductor
SOD-323
Zener diode
3.6V±5%, Izt=5mA, Zzt=85, 200mW
Y5
BZX584B43V
Tak Cheong Semiconductor
SOD-523FL
Zener diode
42.14..43.86V, Izt=2mA, Zzt=150, 200mW
Y5
BZX84-C16
Transys Electronics
SOT-23
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 300mW
Y5
BZX84B16
Micro Commercial Components
SOT-23
Zener diode
15.68..16.32V, Zzt=40, Izt=5mA, 350mW
Y5
BZX84C16
Central Semiconductor
SOT-23
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 350mW
Y5
BZX84C16LT1
ON Semiconductor
SOT-23
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 225mW
Y5
BZX84C16LT1G
ON Semiconductor
SOT-23
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 225mW, Pb-free
Y5
BZX88-C16
Ferranti Semiconductors
SOT-23
Zener diode
16V±5%, Iz=5mA, 200mW
Y5
CMDZ5257B
Central Semiconductor
SOD-323
Zener diode
33V±5%, 3.8mA, Zzt=58, 250mW
Y5
CZRT55C16
Comchip Technology
SOT-23
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 350mW
Y5
ELM7645LBB
ELM Technology
SOT-23
Voltage detector IC
4.5V±2%, -Reset PPO, 500ms
Y5
ELM9725CAB
ELM Technology
SOT-89
Voltage detector IC
2.5V±2.5%, +Reset PPO
Y5
ELM9725CBB
ELM Technology
SOT-23
Voltage detector IC
2.5V±2.5%, +Reset PPO
Y5
FMY5
Rohm
SOT-23-5
NPN+PNP transistors
Dual, GP, 120V, 50mA, 140MHz
Y5
KRC838E
Korea Electronics
TES6
NPN transistor
Dual, Sw, 50V, 100mA, 200mW, R1/R2=2.2k/10k
Y5
KRC838U
Korea Electronics
US6
NPN transistor
Dual, Sw, 50V, 100mA, 200mW, R1/R2=2.2k/10k
Y5
LBZX84C16L1
Leshan Radio Company
SOT-23
Zener diode
15.3..17.1V, Izt=5mA, 225mW
Y5
MFPZ4741A
TAITRON Components
SOD-123F
Zener diode
10.5..11.6V, Izt=23.0mA, 1W
Y5
MM1Z5260B
EIC Semiconductor
SOD-323FL
Zener diode
40.85..45.15V, Izt=3.0mA, Zzt=93, 500mW
Y5
MM1Z5260BH
Zowie Technology
SOD-123
Zener diode
40.85..45.15V, Izt=3mA, Zzt=93, 500mW
Y5
MM5Z16V
Secos
SOD-523
Zener diode
16V±5%, Izt=5mA, Zzt=40, 200mW
Y5
MM5Z43VB
Tak Cheong Semiconductor
SOD-523FL
Zener diode
42.14..43.86V, Izt=2mA, Zzt=150, 200mW
Y5
MMSZ39T
Motorola
SOD-123
Zener diode
39V±5%, Izt=5mA, Zzt=130, 500mW
Y5
MMSZ5260B
EIC Semiconductor
SOD-123
Zener diode
43V±5%, Izt= 3mA, Zzt=93, 500mW
Y5
PZU18B1A/DG
Philips
SOD-323
Zener diode
18V±2%, If=200mA, 320mW, halogen-free
Y5
R1163D351D
Ricoh
SON-6
Linear voltage regulator IC
LDO, 3.5V±1.5%, 150mA, +CE, CL, AE(mode)
Y5
R1210N552C
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 5.5V, 100kHz, +CE, ext. transistor
Y5
R3111Q551C
Ricoh
SC-82AB
Voltage detector IC
5.5V±2%, -Reset ODO
Y5
R5325N005A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/2.5V±1%, 150mA, +CE
Y5
VGFM02-C11-M
Formosa Microsemi
SOD-123F
Transient voltage supressor
Vrwm=9.40V, Vbr=10.5..11.6V, 12.8A, 200W(1ms)
Y5
XC6223H15BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.55V±20mV, 300mA, +CE, CL, PDR, ICP
Y5
XC6225A352NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.5V±2%, 30mA, +CE
Y5
ZD5241BSG
Cystech Electronics
SOD-323-S
Zener diode
11V±5%, 5mA, Zzt=18, 500mW
Y5
ZGFM1011-MH
Formosa Microsemi
SOD-123H
Zener diode
11V±10%, Zzt=8(Izt=23mA), 1W
Y5
ZGFM1011-N
Formosa Microsemi
SOD-123F
Zener diode
10.5..11.6V, Izt=23mA, Zzt=8, 1W
Y50
BZX84-A2V4
NXP Semiconductors
SOT-23
Zener diode
2.4V±1%, Zzt=100, Izt=5mA, 250mW
Y50
R1172N101B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.0V±2%, 1A, +CE
Y50
XC6381E501M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.0V±2.5%, 400mA, 155kHz, int. Vdd
Y50
XC6381E501P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.0V±2.5%, 400mA, 155kHz, int. Vdd
Y50
XC9110E501MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.0V±2.5%, 400mA
Y502A
FC6206S502P
First Silion
SOT-89
Linear voltage regulator IC
5.0V±2%, 250mA
Y502A
ML6206S502P
MiniLogic Device
SOT-89
Linear voltage regulator IC
5.0V±2%, 250mA
Y50A
FC6206S502M
First Silion
SOT-23
Linear voltage regulator IC
5.0V±2%, 250mA
Y50A
ML6206S502M
MiniLogic Device
SOT-23
Linear voltage regulator IC
5.0V±2%, 250mA
Y50B
RP170H501B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.0V±1%, 300mA, +CE
Y50D
RP170H501D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.0V±1%, 300mA, +CE, CL
Y51
BZX84-A2V7
NXP Semiconductors
SOT-23
Zener diode
2.7V±1%, Zzt=100, Izt=5mA, 250mW
Y51
R1172N111B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.1V±2%, 1A, +CE
Y51
XC6381E511M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.1V±2.5%, 400mA, 155kHz, int. Vdd
Y51
XC6381E511P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.1V±2.5%, 400mA, 155kHz, int. Vdd
Y51
XC9110E511MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.1V±2.5%, 400mA
Y51B
RP170H511B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.1V±1%, 300mA, +CE
Y51D
RP170H511D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.1V±1%, 300mA, +CE, CL
Y52
BZX84-A3V0
NXP Semiconductors
SOT-23
Zener diode
3.0V±1%, Zzt=95, Izt=5mA, 250mW
Y52
R1172N121B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.2V±2%, 1A, +CE
Y52
XC6381E521M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.2V±2.5%, 400mA, 155kHz, int. Vdd
Y52
XC6381E521P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.2V±2.5%, 400mA, 155kHz, int. Vdd
Y52
XC9110E521MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.2V±2.5%, 400mA
Y52B
RP170H521B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.2V±1%, 300mA, +CE
Y52D
RP170H521D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.2V±1%, 300mA, +CE, CL
Y53
BZX84-A3V3
NXP Semiconductors
SOT-23
Zener diode
3.3V±1%, Zzt=95, Izt=5mA, 250mW
Y53
R1172N131B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.3V±2%, 1A, +CE
Y53
XC6381E531M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.3V±2.5%, 400mA, 155kHz, int. Vdd
Y53
XC6381E531P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.3V±2.5%, 400mA, 155kHz, int. Vdd
Y53
XC9110E531MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.3V±2.5%, 400mA
Y53B
RP170H531B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.3V±1%, 300mA, +CE
Y53D
RP170H531D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.3V±1%, 300mA, +CE, CL
Y54
BZX84-A3V6
NXP Semiconductors
SOT-23
Zener diode
3.6V±1%, Zzt=90, Izt=5mA, 250mW
Y54
R1172N141B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.4V±2%, 1A, +CE
Y54
XC6381E541M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.4V±2.5%, 400mA, 155kHz, int. Vdd
Y54
XC6381E541P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.4V±2.5%, 400mA, 155kHz, int. Vdd
Y54
XC9110E541MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.4V±2.5%, 400mA
Y54B
RP170H541B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.4V±1%, 300mA, +CE
Y54D
RP170H541D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.4V±1%, 300mA, +CE, CL
Y55
BZX84-A3V9
NXP Semiconductors
SOT-23
Zener diode
3.9V±1%, Zzt=90, Izt=5mA, 250mW
Y55
R1172N151B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.5V±2%, 1A, +CE
Y55
XC6381E551M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.5V±2.5%, 400mA, 155kHz, int. Vdd
Y55
XC6381E551P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.5V±2.5%, 400mA, 155kHz, int. Vdd
Y55
XC9110E551MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.5V±2.5%, 400mA
Y55B
RP170H551B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.5V±1%, 300mA, +CE
Y55D
RP170H551D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.5V±1%, 300mA, +CE, CL
Y56
BZX84-A4V3
NXP Semiconductors
SOT-23
Zener diode
4.3V±1%, Zzt=90, Izt=5mA, 250mW
Y56
R1172N161B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.6V±2%, 1A, +CE
Y56
XC6381E561M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.6V±2.5%, 400mA, 155kHz, int. Vdd
Y56
XC6381E561P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.6V±2.5%, 400mA, 155kHz, int. Vdd
Y56
XC9110E561MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.6V±2.5%, 400mA
Y56B
RP170H561B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.6V±1%, 300mA, +CE
Y56D
RP170H561D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.6V±1%, 300mA, +CE, CL
Y57
BZX84-A4V7
NXP Semiconductors
SOT-23
Zener diode
4.7V±1%, Zzt=80, Izt=5mA, 250mW
Y57
R1172N171B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.7V±2%, 1A, +CE
Y57
XC6381E571M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.7V±2.5%, 400mA, 155kHz, int. Vdd
Y57
XC6381E571P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.7V±2.5%, 400mA, 155kHz, int. Vdd
Y57
XC9110E571MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.7V±2.5%, 400mA
Y57B
RP170H571B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.7V±1%, 300mA, +CE
Y57D
RP170H571D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.7V±1%, 300mA, +CE, CL
Y58
BZX84-A5V1
NXP Semiconductors
SOT-23
Zener diode
5.1V±1%, Zzt=60, Izt=5mA, 250mW
Y58
R1172N181B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.8V±2%, 1A, +CE
Y58
XC6381E581M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.8V±2.5%, 400mA, 155kHz, int. Vdd
Y58
XC6381E581P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.8V±2.5%, 400mA, 155kHz, int. Vdd
Y58
XC9110E581MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.8V±2.5%, 400mA
Y58B
RP170H581B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.8V±1%, 300mA, +CE
Y58D
RP170H581D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.8V±1%, 300mA, +CE, CL
Y59
BZX84-A5V6
NXP Semiconductors
SOT-23
Zener diode
5.6V±1%, Zzt=40, Izt=5mA, 250mW
Y59
R1172N191B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 1.9V±2%, 1A, +CE
Y59
XC6381E591M
Torex Semiconductor
SOT-23-5
DC/DC voltage converter IC
PFM step-up, 5.9V±2.5%, 400mA, 155kHz, int. Vdd
Y59
XC6381E591P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PFM step-up, 5.9V±2.5%, 400mA, 155kHz, int. Vdd
Y59
XC9110E591MR
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PFM step-up, 100kHz, 5.9V±2.5%, 400mA
Y59B
RP170H591B
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.9V±1%, 300mA, +CE
Y59D
RP170H591D
Ricoh
SOT-89-5
Linear voltage regulator IC
LDO, 5.9V±1%, 300mA, +CE, CL
Y5A
XC6118N45AGR-G
Torex Semiconductor
USP-4
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis 5%, Cd
Y5A
XC6118N45AMR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis 5%, Cd
Y5B
XC6118N45BGR-G
Torex Semiconductor
USP-4
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis <1%, Cd
Y5B
XC6118N45BMR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis <1%, Cd
Y5C
XC6118N45CGR-G
Torex Semiconductor
USP-4
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis 5%
Y5C
XC6118N45CMR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis 5%
Y5D
XC6118N45DGR-G
Torex Semiconductor
USP-4
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis <1%
Y5D
XC6118N45DMR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, ±Reset ODO, Sense, hysteresis <1%
Y5p
BZX84-C16

SOT-23
Zener diode
16V±5%, Zzt=40, Izt=5mA, 250mW
Y5S
CGY59W
Infineon Technologies
SOT-363
Monolithic microwave IC
GaAs UHF preamp. 8V, 0.2...2.5GHz (13dB)
Y5t
BZX84-C16
NXP Malaysia
SOT-23
Zener diode
16V±5%, Zzt=40, Izt=5mA, 250mW
Y5W
BZX84-C16

SOT-23
Zener diode
16V±5%, Zzt=40, Izt=5mA, 250mW
Y5Y
CMSZDA16V
Central Semiconductor
SOT-323
Zener diode
Dual, 15.3..17.1V, Zzt=40, 10mA, 275mW