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 'WQ'

Marking
Name
Manufacturer/Case
Function
WQ
2PD602Q
Philips
SOT-23
NPN transistor
GP, Sw, 60V, 500mA, 250mW, B=85..170, >140MHz
WQ
2SD1820-Q
Panasonic
SOT-323
NPN transistor
GP, 30V, 500mA, 150mW, B=85..170, 20MHz
WQ
2SD602-Q
Panasonic
SC-59
NPN transistor
GP, AF, 50V, 500mA, 200mW, B=85..170, 200MHz
WQ
2SD968-Q
Panasonic
SOT-89
NPN transistor
AF-Drv, 100V, 1A, 1W, B=90.155, 120MHz
WQ
2SK322-Q
Renessas
SOT-23
FET n-type
HF, 15V, 50mA, 150mW, Idss=14..24mA, Up<3V
WQ
BD46261G
Rohm
SSOP-5
Voltage detector IC
2.6V±1%, -MR, -Reset PPO, 100ms
WQ
BZT52C30
Diodes
SOD-123
Zener diode
30V±5%, Izt=5mA, Zzt=80, 500mW
WQ
BZT52C30
Diodes
SOD-123
Zener diode
30V±5%, Izt=5mA, Zzt=80, 500mW
WQ
BZT52C30S
Diodes
SOD-323
Zener diode
30V±5%, Izt=2.5mA, Zzt=80, 200mW
WQ
BZT52C30S
Diodes
SOD-323
Zener diode
30V±5%, Izt=2.5mA, Zzt=80, 200mW
WQ
BZX284-B3V0
Philips
SOD-110
Zener diode
3V±2%, If=250mA, 400mW
WQ
CZRW55C30-G
Comchip Technology
SOD-123
Zener diode
30.0..32.0V, Zzt=80, Izt=2mA, 500mW
WQ
LBZT52C30T1G
Leshan Radio Company
SOD-123
Zener diode
28..32V, Izt=2mA, 500mW
WQ
MIC2211-1.6/2.9BML
Micrel
MLF-10
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=1.6V(150mA)/2.9V(300mA)±1%, +CE
WQ
MM3Z30V
Secos
SOD-323
Zener diode
28..32V, Izt=2mA, Zzt=80, 200mW
WQ
P4SMA56CA
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=53.2..58.8V, Vrwm=47.8V, 5.5A, 400W(1ms), Bidir.
WQ
P4SMAJ75C
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=75V, 3A, 400W (1ms), Bidir.
WQ
P4SMAJ8.0C
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=8V, 26.5A, 400W (1ms), Bidir.
WQ
PT7M6314US49D3

SOT-143
Voltage detector IC
4.9V±1.5%, 200ms, -Restet PPO, -MR
WQ
R1210N541D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 5.4V, 180kHz
WQ
R3133Q43EA8
Ricoh
SOT-143
Voltage detector IC
4.38V±1.5%, +Reset PPO, -MR
WQ
R5325N024B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/3V±1%, 150mA, +CE, CL
WQ
RN5RK391A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=3.9V±1.5%
WQ
RP130K481D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 4.8V±1%, 150mA
WQ
RP201K221B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.2V±1%, 150mA, +CE, AE(Mode)
WQ
SMAJ8.0C
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=8.0V, Vbr=8.89..10.9V, 26.7A, 400W(1ms), Bidir.
WQ
TV04A8V0KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=8.0V, Vbr=8.89..10.90V, Ipp=26.67A, 400W(1ms), Bidir.
WQ-
RT9818A-25PB
Richtek Technology
SOT-23-5
Voltage detector IC
2.5V±1.5%, -Reset ODO