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
SOT-346
NPN transistor
AF, 30V, 50mA, 200mW, B=120..270, >110MHz
AF, 30V, 50mA, 200mW, B=120..270, >110MHz
SQ
2SC4100-Q
Rohm
SOT-323
SOT-323
NPN transistor
AF, 30V, 50mA, 200mW, B=120..270, >110MHz
AF, 30V, 50mA, 200mW, B=120..270, >110MHz
SQ
2SC4619-Q
Rohm
SOT-416
SOT-416
NPN transistor
GP, 30V, 50mA, 150mW, B=120..270, 110MHz
GP, 30V, 50mA, 150mW, B=120..270, 110MHz
SQ
74LV1T34GV
NXP Semiconductors
SOT753
SOT753
CMOS logic IC
Singe supply translating buffer
Singe supply translating buffer
SQ
74LV1T34GW
NXP Semiconductors
SOT-353-1
SOT-353-1
CMOS logic IC
Singe supply translating buffer
Singe supply translating buffer
SQ
74LV1T34GX
NXP Semiconductors
SOT1226-3
SOT1226-3
CMOS logic IC
Singe supply translating buffer
Singe supply translating buffer
SQ
ASM811SEUS
Alliance Semiconductor
SOT-143
SOT-143
Voltage detector IC
2.93V±1.5%, -Reset PPO, -MR
2.93V±1.5%, -Reset PPO, -MR
SQ
AX6905AA
AXElite Technology
SC-70-3L
SC-70-3L
Voltage detector IC
4.63V±1.5%, -Reset PPO
4.63V±1.5%, -Reset PPO
SQ
EC76SMAJ170
E-CMOS
DO-214AC
DO-214AC
Transient voltage supressor
Vbr=189..231V, Vrwm=170V, Ipp=0.99A, 400W(1ms)
Vbr=189..231V, Vrwm=170V, Ipp=0.99A, 400W(1ms)
SQ
KIC7S02FU
Korea Electronics
USV
USV
CMOS logic IC
2-input NOR gate
2-input NOR gate
SQ
P4SMA51CA
Fagor Electronica
DO-214AC
DO-214AC
Transient voltage supressor
Vbr=48.5..53.6V, Vrwm=43.6V, 6.0A, 400W(1ms), Bidir.
Vbr=48.5..53.6V, Vrwm=43.6V, 6.0A, 400W(1ms), Bidir.
SQ
P4SMAJ170
Won-Top Electronics
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..239.5V, Ipp=1.3A, 400W(1ms)
Vrwm=170V, Vbr=189..239.5V, Ipp=1.3A, 400W(1ms)
SQ
P4SMAJ170
PanJIT Semiconductor
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..239.5V, Ipp=1.3A, 400W(1ms)
Vrwm=170V, Vbr=189..239.5V, Ipp=1.3A, 400W(1ms)
SQ
P4SMAJ170
Shanghai Lunsure Electronic Technology
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..231V, Ipp=1.3A, 400W(1ms)
Vrwm=170V, Vbr=189..231V, Ipp=1.3A, 400W(1ms)
SQ
PZS1118BES
PanJIT Semiconductor
SOD-523
SOD-523
Zener diode
17.1..18.9V, Izt=0.05mA, 150mW
17.1..18.9V, Izt=0.05mA, 150mW
SQ
R1122N341B
Ricoh
SOT-23-5
SOT-23-5
Linear voltage regulator IC
LDO, LN, 3.4V±2%, 150mA, +CE
LDO, LN, 3.4V±2%, 150mA, +CE
SQ
R3116L451C
Ricoh
DFN1212-4
DFN1212-4
Voltage detector IC
4.5V±0.8%, -Reset PPO
4.5V±0.8%, -Reset PPO
SQ
RP130K481A
Ricoh
DFN1010-4
DFN1010-4
Linear voltage regulator IC
LDO, LN, -CE, 4.8V±1%, 150mA
LDO, LN, -CE, 4.8V±1%, 150mA
SQ
RP152L015B
Ricoh
DFN1212-6
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/2.5V±1%, 150mA, +CE, CL
LDO, Dual out, Vout1/Vout2=1.5V/2.5V±1%, 150mA, +CE, CL
SQ
SDMP0340LAT
Diodes
SOT-523
SOT-523
Diode
Dual, Schottky, Sw, 40V, 200mA, 150mW, 2pF
Dual, Schottky, Sw, 40V, 200mA, 150mW, 2pF
SQ
SMAJ170
Vishay Semiconductor
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..231V, 0.99A, 400W(1ms)
Vrwm=170V, Vbr=189..231V, 0.99A, 400W(1ms)
SQ
SMAJ170
Socay Electronics
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
SQ
SMAJ170
Taiwan Semiconductor Company
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
SQ
SMAJ170G
First Semiconductor
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..239.5V, Ipp=1.3A, 400W(1ms)
Vrwm=170V, Vbr=189..239.5V, Ipp=1.3A, 400W(1ms)
SQ
TV04A171K-G
Comchip Technology
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
Vrwm=170.0V, Vbr=189.0..231.0V, Ipp=1.32A, 400W(1ms)
SQA
MAX810MTR
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
4.38V±1.5%, +Reset PPO
4.38V±1.5%, +Reset PPO
SQB
MAX810LTR
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
4.63V±1.5%, +Reset PPO
4.63V±1.5%, +Reset PPO
SQC
NCP803SN263T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
2.63V±1.5%, -Reset ODO
2.63V±1.5%, -Reset ODO
SQD
NCP803SN293T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
2.93V±1.5%, -Reset ODO
2.93V±1.5%, -Reset ODO
SQE
NCP803SN308T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
3.08V±1.5%, -Reset ODO
3.08V±1.5%, -Reset ODO
SQF
NCP803SN438T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
4.38V±1.5%, -Reset ODO
4.38V±1.5%, -Reset ODO
SQG
NCP803SN463T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
4.63V±1.5%, -Reset ODO
4.63V±1.5%, -Reset ODO
SQP
MAX809SN232
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
2.32V±1.5%, -Reset PPO
2.32V±1.5%, -Reset PPO
SQP
MAX809SN232T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
2.32V±1.5%, -Reset PPO
2.32V±1.5%, -Reset PPO
SQP
SMAJ170C
Bytesonic
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=170V, Vbr=189..209V, 0.99A, 400W(1ms), Bidir.
Vrwm=170V, Vbr=189..209V, 0.99A, 400W(1ms), Bidir.
SQR
NCP803SN232T1
ON Semiconductor
SOT-23
SOT-23
Voltage detector IC
2.32V±1.5%, -Reset ODO
2.32V±1.5%, -Reset ODO
SQV
NCV300LSN30T1
ON Semiconductor
TSOP-5
TSOP-5
Voltage detector IC
3.0V±1.5%, -Reset PPO
3.0V±1.5%, -Reset PPO