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'

Marking
Name
Manufacturer/Case
Function
ST
1SMA43A
ON Semiconductor
403B-01
Transient voltage supressor
Vrwm=43V±5%, 5.8A, 400W (1ms),
ST
2SA1036KPT-P
Chenmko Enterprise
SOT-23
PNP transistor
AF, Sw, 32V, 500mA, B=82..180, 200MHz
ST
2SC2405-T
Panasonic
SOT-23
NPN transistor
AF, LN, 55V, 10mA, 200mW, B=360..700, 200MHz
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
BSS139
Siemens
SOT-23
MOSFET n-type
V-MOS, 250V, 40mA, <100, 14/25ns
ST
BZX84J-B3V0
NXP Semiconductors
SOD-323FL
Zener diode
3.0V±2%, If=250mA, 550mW
ST
KIC7S08FU
Korea Electronics
SOT-353
Capacitance diode
2-input AND gate
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-214AB
Transient voltage supressor
Vrwm=180V, 1.3A, 400W (1ms)
ST
PMF180A
StarHope
SOD-123FL
Transient voltage supressor
Vbr=200..220V, Vrwm=180V, Ipp=0.69A, 200W(1ms)
ST
R1122N371B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, Low noise, 3.7V±2%, 150mA, +CE
ST
RP152L018B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/1.8V±1%, 150mA, +CE, CL
ST
SMAJ180A
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vrwm=180V, Vbr=200..220V, 1.4A, 400W(1ms)
ST
SMAJ188
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=188V, Vbr=209..231V, 0.9A, 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
XC6127C44GNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.4V±0.8%, +Reset PPO, -MR, Rt=100ms
ST
XC6223C34BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.45V±1%, 300mA, +CE, PDR
ST
XC6501C291NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.9V±1%, 200mA, +CE, PDR
ST2
2SC4452-2
Sanyo Electric
MCP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 150mW, 750MHz, B=50..100
ST2
2SC4453-2
Sanyo Electric
CP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 200mW, 750MHz, B=50..100
ST2N
2N7002
SGS-Thomson Microelectronics
SOT-23-3L
MOSFET n-type
TMOS, 60V, 350mA, 1W, <5(350mA), 5/7ns
ST3
2SC4452-3
Sanyo Electric
MCP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 150mW, 750MHz, B=70..140
ST3
2SC4453-3
Sanyo Electric
CP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 200mW, 750MHz, B=70..140
ST4
2SC4452-4
Sanyo Electric
MCP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 150mW, 750MHz, B=100..200
ST4
2SC4453-4
Sanyo Electric
CP
NPN transistor
Sw, Hi-Sp, 40V, 200mA, 200mW, 750MHz, B=100..200
STB
MCP809M3-4.00
National Semiconductor
SOT-23
Voltage detector IC
4.0V±1.5%, -Reset PPO
STC
1SMA43CA
ON Semiconductor
403B-01
Transient voltage supressor
Vrwm=43V±5%, 5.8A, 400W (1ms), Bidir.
STs
BSS139
Siemens
SOT-23
MOSFET n-type
V-MOS, 250V, 40mA, <100, 14/25ns