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 'ST'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
ST
LT4ME200A
Lite-On Semiconductor
DO-219
Transient voltage supressor
Vrwm=200V, Vbr=224..248V, Ipp=1.2A, 400W(1ms)
ST
SMF4L200AQ
Diodes
DO-219AA
Transient voltage supressor
Vrwm=200V, Vbr=224..248V, Ipp=1.2A, 400W(1ms)
ST
PMF180A
StarHope
SOD-123FL
Transient voltage supressor
Vbr=200..220V, Vrwm=180V, Ipp=0.69A, 200W(1ms)
ST
BZX84J-B3V0
NXP Semiconductors
SOD-323FL
Zener diode
3.0V±2%, If=250mA, 550mW
ST
1SMA43A
ON Semiconductor
403B-01
Transient voltage supressor
Vrwm=43V±5%, 5.8A, 400W (1ms)
ST
1SMA43CA
ON Semiconductor
403B-01
Transient voltage supressor
Vrwm=43V±5%, 5.8A, 400W (1ms), Bidir.
ST
EC76SMAJ180A
E-CMOS
DO-214AC
Transient voltage supressor
Vbr=201..222V, Vrwm=180V, Ipp=1.4A, 400W(1ms)
ST
P4SMA56C
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=53.2..58.8V, Vrwm=47.8V, 5.5A, 400W(1ms), Bidir.
ST
P4SMAJ180A
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=180V, Vbr=198..230.4V, Ipp=1.3A, 400W(1ms)
ST
P4SMAJ180A
Won-Top Electronics
DO-214AC
Transient voltage supressor
Vrwm=180V, Vbr=198..230.4V, Ipp=1.3A, 400W(1ms)
ST
P4SMAJ185A
Frontier Electronics
DO-214AC
Transient voltage supressor
Vrwm=185V, Vbr=209..231V, Ipp=0.99A, 400W(1ms)
ST
P4SMAJ188
Frontier Electronics
DO-214AC
Transient voltage supressor
Vrwm=188V, Vbr=209..255V, Ipp=1.1A, 400W(1ms)
ST
SMAJ180A
Leimao Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=180V, Vbr=200..220V, 1.4A, 400W(1ms)
ST
SMAJ180A
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vrwm=180.0V, Vbr=201.0..220.0V, Ipp=1.37A, 400W(1ms)
ST
SMAJ180A
Ruilong Yuan Electronics
DO-214AC
Transient voltage supressor
Vrwm=180V, Vbr=200..220V, 1.4A, 400W(1ms)
ST
SMAJ180A
Socay Electronics
DO-214AC
Transient voltage supressor
Vrwm=180.0V, Vbr=201.0..220.0V, Ipp=1.37A, 400W(1ms)
ST
SMAJ180A
Yint Electronics
DO-214AC
Transient voltage supressor
Vrwm=180.0V, Vbr=201.0..220.0V, Ipp=1.37A, 400W(1ms)
ST
SMAJ180AG
First Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=180V, Vbr=200..230.4V, Ipp=1.4A, 400W(1ms)
ST
SMAJ188
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=188V, Vbr=209..231V, 0.9A, 400W(1ms)
ST
SMAJ188A
Taiwan Semiconductor Company
DO-214AC
Transient voltage supressor
Vrwm=188.0V, Vbr=201.0..220.0V, Ipp=1.37A, 400W(1ms)
ST
SMAJ200A
Diodes
DO-214AC
Transient voltage supressor
Vrwm=200V, Vbr=224..248V, 1.2A, 400W(1ms)
ST
TV04A181J-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=180.0V, Vbr=200.0..220.0V, Ipp=1.37A, 400W(1ms)
ST
SMAS180A
Formosa Microsemi
SMA-S
Transient voltage supressor
Vrwm=180V, Vbr=201..222V, Ipp=1.4A, 400W(1ms)
ST
AX6905DA
AXElite Technology
SC-70-3L
Voltage detector IC
3.08V±1.5%, -Reset PPO
ST
2SA1036KGP-P
Chenmko Enterprise
SOT-23
PNP transistor
AF, Sw, 40V, 500mA, 300mW, B=82..180, 200MHz
ST
2SC2405-T
Panasonic
SOT-23
NPN transistor
AF, LN, 35V, 100mA, 200mW, B=360..700, 200MHz
ST
APX809S05-23SR-7
Diodes
SOT-23
Voltage detector IC
2.25V±1.5%, -Reset PPO, Rdt=50ms
ST
BCT2203EURX0-TR
Broadchip Technology Group
SOT-23
Linear voltage regulator IC
LDO, 10.0V±2%, 150mA
ST
BCT2203EURX2-TR
Broadchip Technology Group
SOT-23
Linear voltage regulator IC
LDO, 12.0V±2%, 150mA
ST
2SC3929-T
Panasonic
SOT-323
NPN transistor
AF, LN, 35V, 50mA, 150mW, B=360..700, 80MHz
ST
ASM812MEUS
Alliance Semiconductor
SOT-143
Voltage detector IC
4.38V±1.5%, +Reset PPO, -MR
ST
IXD5127C44GNR
IXYS
SSOT-24
Voltage detector IC
4.4V±0.8%, +Reset PPO, -MR, 100ms Rt delay
ST
XC6127C44GNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.4V±0.8%, +Reset PPO, -MR, Rdt=100ms
ST
XC6223C34BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.45V±1%, 300mA, +CE, PDR
ST
XC6237B291NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.9V±1%, 150mA, +CE
ST
XC6501C291NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.9V±1%, 200mA, +CE, PDR
ST
R3116L481C
Ricoh
DFN1212-4
Voltage detector IC
4.8V±0.8%, -Reset PPO
ST
XC6237B2919R-G
Torex Semiconductor
USPQ-4B05
Linear voltage regulator IC
LDO, 2.9V±1%, 150mA, +CE
ST
BCT2203EUKX0-TR
Broadchip Technology Group
SOT-23-5
Linear voltage regulator IC
LDO, 10.0V±2%, 150mA
ST
BCT2203EUKX2-TR
Broadchip Technology Group
SOT-23-5
Linear voltage regulator IC
LDO, 12.0V±2%, 150mA
ST
R1122N371B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, LN, 3.7V±2%, 150mA, +CE
ST
KIC7S08FU
Korea Electronics
USV
CMOS logic IC
2-input AND gate
ST
R3160N480B
Ricoh
SOT-23-6
Voltage detector IC
48.0V±1.5%, +Reset ODO
ST
74AUP2G34DW
Diodes
SOT-363
CMOS logic IC
Dual noniverting buffers
ST
RP152L018B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/1.8V±1%, 150mA, +CE, CL
ST
74AUP2G34FW4
Diodes
X2-DFN1010-6
CMOS logic IC
Dual noniverting buffers
ST-
2PB710ASL/DG
NXP Semiconductors
SOT-23
PNP transistor
GP, 60V, 500mA, 250mW, B=170..340, 140MHz, H-free
ST0
XC9148L38CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 3.8V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST0
XC9148L38CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 3.8V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST1
XC9148L39CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 3.9V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST1
XC9148L39CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 3.9V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST2
2SC4453-2
Sanyo Electric
CP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 200mW, 750MHz, B=50..100
ST2
2SC4452-2
Sanyo Electric
MCP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 150mW, 750MHz, B=50..100
ST2
XC9148L40CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.0V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST2
XC9148L40CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.0V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST3
2SC4453-3
Sanyo Electric
CP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 200mW, 750MHz, B=70..140
ST3
2SC4452-3
Sanyo Electric
MCP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 150mW, 750MHz, B=70..140
ST3
XC9148L41CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.1V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST3
XC9148L41CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.1V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST4
2SC4453-4
Sanyo Electric
CP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 200mW, 750MHz, B=100..200
ST4
2SC4452-4
Sanyo Electric
MCP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 150mW, 750MHz, B=100..200
ST4
XC9148L42CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.2V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST4
XC9148L42CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.2V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST5
XC9148L43CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.3V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST5
XC9148L43CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.3V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST6
XC9148L44CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.4V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST6
XC9148L44CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.4V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST7
XC9148L45CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.5V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST7
XC9148L45CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.5V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST8
XC9148L46CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.6V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST8
XC9148L46CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.6V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST9
XC9148L47CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.7V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
ST9
XC9148L47CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.7V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STA
XC9148L48CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.8V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STA
XC9148L48CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.8V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STB
MCP809M3-4.00
National Semiconductor
SOT-23
Voltage detector IC
4.0V±1.5%, -Reset PPO
STB
XC9148L49CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 4.9V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STB
XC9148L49CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 4.9V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STC
XC9148L50CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 5.0V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STC
XC9148L50CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 5.0V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STD
XC9148L51CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 5.1V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STD
XC9148L51CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 5.1V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STE
XC9148L52CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 5.2V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STE
XC9148L52CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 5.2V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STF
XC9148L53CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 5.3V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STF
XC9148L53CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 5.3V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STH
XC9148L54CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 5.4V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STH
XC9148L54CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 5.4V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STK
XC9148L55CPR-G
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM/PFM step-up, 1.2MHz, 5.5V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STK
XC9148L55CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM st-up, 1.2MHz, 5.5V±2%, 1.4A, ULVO, CrLL, ShPr, +CE
STp
2PB710ASL/DG
NXP Semiconductors
SOT-23
PNP transistor
GP, 60V, 500mA, 250mW, B=170..340, 140MHz, H-free
STs
BSS139
Infineon Technologies
SOT-23
MOSFET n-type
V-MOS, 250V, 100mA, 360mW, <30 (15mA), 5.8/29ns
STt
2PB710ASL/DG
NXP Semiconductors
SOT-23
PNP transistor
GP, 60V, 500mA, 250mW, B=170..340, 140MHz, H-free
STW
2PB710ASL/DG
NXP Semiconductors
SOT-23
PNP transistor
GP, 60V, 500mA, 250mW, B=170..340, 140MHz, H-free
ST2N
2N7002
SGS-Thomson Microelectronics
SOT-23-3L
MOSFET n-type
TMOS, 60V, 350mA, 1W, <5(350mA), 5/7ns

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