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'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
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
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
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
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
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
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
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
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)
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
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
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
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
SDMP0340LAT
Diodes
SOT-523
SOT-523
Diode
Dual, Schottky, Sw, 40V, 200mA, 150mW, 2pF
Dual, Schottky, Sw, 40V, 200mA, 150mW, 2pF
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
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
R3116L451C
Ricoh
DFN1212-4
DFN1212-4
Voltage detector IC
4.5V±0.8%, -Reset PPO
4.5V±0.8%, -Reset PPO
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
74LV1T34GW
NXP Semiconductors
SOT-353-1
SOT-353-1
CMOS logic IC
Singe supply translating buffer
Singe supply translating buffer
SQ
74LV1T34GV
NXP Semiconductors
SOT753
SOT753
CMOS logic IC
Singe supply translating buffer
Singe supply translating buffer
SQ
KIC7S02FU
Korea Electronics
USV
USV
CMOS logic IC
2-input NOR gate
2-input NOR gate
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
74LV1T34GX
NXP Semiconductors
SOT1226-3
SOT1226-3
CMOS logic IC
Singe supply translating buffer
Singe supply translating buffer
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
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.
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
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
Other codes starting with 'S…' :