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 'SQ'

Marking
Name
Manufacturer/Case
Function
SQ
2SC3082K-Q
Rohm
SOT-346
NPN transistor
AF, 30V, 50mA, 200mW, B=120..270, >110MHz
SQ
2SC4100-Q
Rohm
SOT-323
NPN transistor
AF, 30V, 50mA, 200mW, B=120..270, >110MHz
SQ
2SC4619-Q
Rohm
SOT-416
NPN transistor
GP, 30V, 50mA, 150mW, B=120..270, 110MHz
SQ
ASM811SEUS
Alliance Semiconductor
SOT-143
Voltage detector IC
2.93V±1.5%, -Reset PPO, -MR
SQ
KIC7S02FU
Korea Electronics
SOT-353
Capacitance diode
2-input NOR gate
SQ
P4SMA51CA
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=48.5..53.6V, Vrwm=43.6V, 6.0A, 400W(1ms), Bidir.
SQ
P4SMAJ170
PanJIT Semiconductor
DO-214AB
Transient voltage supressor
Vrwm=170V, 1.3A, 400W (1ms)
SQ
R1122N341B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, Low noise, 3.4V±2%, 150mA, +CE
SQ
RP130K481A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, -CE, 4.8V±1%, 150mA
SQ
RP152L015B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/2.5V±1%, 150mA, +CE, CL
SQ
SDMP0340LAT
Diodes
SOT-523
Diode
Dual, Schottky, Sw, 40V, 200mA, 150mW, 2pF
SQ
SMAJ170
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..231V, 0.99A, 400W(1ms)
SQ
TV04A171K-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
SQA
MAX810MTR
ON Semiconductor
SOT-23
Voltage detector IC
4.38V±1.5%, +Reset PPO
SQB
MAX810LTR
ON Semiconductor
SOT-23
Voltage detector IC
4.63V±1.5%, +Reset PPO
SQC
NCP803SN263T1
ON Semiconductor
SOT-23
Voltage detector IC
2.63V±1.5%, -Reset ODO
SQD
NCP803SN293T1
ON Semiconductor
SOT-23
Voltage detector IC
2.93V±1.5%, -Reset ODO
SQE
NCP803SN308T1
ON Semiconductor
SOT-23
Voltage detector IC
3.08V±1.5%, -Reset ODO
SQF
NCP803SN438T1
ON Semiconductor
SOT-23
Voltage detector IC
4.38V±1.5%, -Reset ODO
SQG
NCP803SN463T1
ON Semiconductor
SOT-23
Voltage detector IC
4.63V±1.5%, -Reset ODO
SQP
MAX809SN232
ON Semiconductor
SOT-23
Voltage detector IC
2.32V±1.5%, -Reset PPO
SQP
MAX809SN232T1
ON Semiconductor
SOT-23
Voltage detector IC
2.32V±1.5%, -Reset PPO
SQP
SMAJ170C
Bytesonic
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..209V, 0.99A, 400W(1ms), Bidir.
SQR
NCP803SN232T1
ON Semiconductor
SOT-23
Voltage detector IC
2.32V±1.5%, -Reset ODO
SQV
NCV300LSN30T1
ON Semiconductor
TSOP-5
Voltage detector IC
3.0V±1.5%, -Reset PPO