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 'SI'

Marking
Name
Manufacturer/Case
Function
SI
ASM810JEUR
Alliance Semiconductor
SOT-23
Voltage detector IC
4.0V±1.5%, +Reset PPO
SI
P4SMA33CA
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=31.4..34.7V, Vrwm=28.2V, 9.0A, 400W(1ms), Bidir.
si
PT7M7824JTA

SOT-23-5
Voltage detector IC
4.0V±1.5%, ±Reset PPO, WD
si
PT7M7824JTAE

SOT-23-5
Voltage detector IC
4.0V±1.5%, ±Reset PPO, WD, Lead free
SI
SDB310Q
Semtech Electronics
SOD-523
Diode
SBR, 30V, 0.2A, 150mW, <5ns
SIA
NCP305LSQ32T1
ON Semiconductor
SC-82AB
Voltage detector IC
3.2V±1.5%, -Reset ODO
SIB
NCP305LSQ31T1
ON Semiconductor
SC-82AB
Voltage detector IC
3.1V±1.5%, -Reset ODO
SIC
NCP305LSQ30T1
ON Semiconductor
SC-82AB
Voltage detector IC
3.0V±1.5%, -Reset ODO
SID
NCP305LSQ29T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.9V±1.5%, -Reset ODO
SIE
NCP305LSQ28T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.8V±1.5%, -Reset ODO
SIF
NCP305LSQ27T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.7V±1.5%, -Reset ODO
SIH
NCP305LSQ25T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.5V±1.5%, -Reset ODO
SII
NCP305LSQ24T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.4V±1.5%, -Reset ODO
SIJ
NCP305LSQ23T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.3V±1.5%, -Reset ODO
SIK
NCP305LSQ22T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.2V±1.5%, -Reset ODO
SIM
NCV300LSN20T1
ON Semiconductor
TSOP-5
Voltage detector IC
2.0V±1.5%, -Reset PPO
SIN
NCP305LSQ20T1
ON Semiconductor
SC-82AB
Voltage detector IC
2.0V±1.5%, -Reset ODO
SIP
NCP305LSQ18T1
ON Semiconductor
SC-82AB
Voltage detector IC
1.8V±1.5%, -Reset ODO
SIQ
NCP305LSQ17T1
ON Semiconductor
SC-82AB
Voltage detector IC
1.7V±1.5%, -Reset ODO
SIR
NCP305LSQ16T1
ON Semiconductor
SC-82AB
Voltage detector IC
1.6V±1.5%, -Reset ODO
SIS
NCP305LSQ15T1
ON Semiconductor
SC-82AB
Voltage detector IC
1.5V±1.5%, -Reset ODO
SIW
NCV300LSN27T1
ON Semiconductor
TSOP-5
Voltage detector IC
2.7V±1.5%, -Reset PPO
SIX
NCP305LSQ11T1
ON Semiconductor
SC-82AB
Voltage detector IC
1.1V±1.5%, -Reset ODO
SIZ
NCP305LSQ09T1
ON Semiconductor
SC-82AB
Voltage detector IC
0.9V±1.5%, -Reset PPO