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 'WF'

Marking
Name
Manufacturer/Case
Function
WF
2SK322-F
Renessas
SOT-23
FET n-type
HF, 15V, 50mA, 150mW, Idss=10..20mA, Up<3V
WF
BCR112L3
Infineon Technologies
TSLP-3
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/4.7k, 140MHz
WF
BD46351G
Rohm
SSOP-5
Voltage detector IC
3.5V±1%, -MR, -Reset PPO, 100ms
WF
BZT52B9V1
PanJIT Semiconductor
SOD-123
Zener diode
9.1V±2%, Izt=5mA, Zzt=15, 410mW
WF
BZT52B9V1S
Micro Commercial Components
SOD-323
Zener diode
8.92..9.28V, Izt=5mA, Zzt=15, 200mW
WF
BZT52C10
Diodes
SOD-123
Zener diode
10V±5%, Izt=5mA, Zzt=20, 500mW
WF
BZT52C10
Diodes
SOD-123
Zener diode
10V±5%, Izt=5mA, Zzt=20, 500mW
WF
BZT52C10S
Diodes
SOD-323
Zener diode
10V±5%, Izt=5mA, Zzt=20, 200mW
WF
BZT52C10S
Diodes
SOD-323
Zener diode
10V±5%, Izt=5mA, Zzt=20, 200mW
WF
BZT52C10T
Diodes
SOD-523
Zener diode
10V±5%, Izt=5mA, Zzt=20, 150mW
WF
BZT52C9V1-F
TAITRON Components
SOD-123F
Zener diode
8.5..9.6V, Izt=5mA, 410mW
WF
BZT52C9V1-V
Vishay Semiconductor
SOD-123
Zener diode
9.1V±5%, Izt=5mA, Zzt=15, 500mW
WF
BZT52C9V1S
PanJIT Semiconductor
SOD-323
Zener diode
9.1V±5%, Izt=5mA, Zzt=15, 200mW
WF
BZT52C9V1WS
TAITRON Components
SOD-323F
Zener diode
8.65..9.56V, Izt=5.0mA, 200mW
WF
BZT52C9V1WT
TAITRON Components
SOD-523
Zener diode
8.65..9.56V, Izt=5mA, Zzt=15, 200mW
WF
BZT52C9V1WU
TAITRON Components
SOD-723
Zener diode
8.65..9.56V, Izt=5mA, Zzt=15, 200mW
WF
BZX384C9V1-F
TAITRON Components
SOD-323F
Zener diode
8.5..9.6V, Izt=5.0mA, 200mW
WF
BZX384C9V1-V
Vishay Semiconductor
SOD-323
Zener diode
9.1V±5%, Izt=5mA, Zzt=6, 200mW
WF
BZX584C9V1
PanJIT Semiconductor
SOD-523
Zener diode
8.5..9.6V, Izt=5mA, Zzt=15, 200mW
WF
BZX784C9V1
PanJIT Semiconductor
SOD-723
Zener diode
8.65..9.56V, Zzt=15, Izt=5mA, 200mW
WF
BZX84B9V1
PanJIT Semiconductor
SOT-23
Zener diode
8.92..9.28V, Zzt=15, Izt=5mA, 410mW
WF
BZX84C9V1
Won-Top Electronics
SOT-23
Zener diode
8.5..9.6V, Zzt=15, Izt=5mA, 350mW
WF
BZX84C9V1TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 8.92..9.28V, Zzt=15, Izt=5mA, 200mW
WF
BZX84C9V1W
Won-Top Electronics
SOT-323
Zener diode
8.5..9.6V, Zzt=15, Izt=5mA, 200mW
WF
CHDTC143EEPT
Chenmko Enterprise
SOT-416
NPN transistor
Sw, 50V, 100mA, 250MHz, R1/R2=4.7k/4.7k
WF
CZRW55C10-G
Comchip Technology
SOD-123
Zener diode
10.0..10.60V, Zzt=20, Izt=5mA, 500mW
WF
LBZT52C10T1G
Leshan Radio Company
SOD-123
Zener diode
9.4..10.6V, Izt=5mA, 500mW
WF
MEZ02-9.1-D3
Matsuki Electronic Company
SOD-323
Zener diode
8.65..9.56V, Izt=5mA, Zzt=10, 200mW
WF
MM3Z10V
Secos
SOD-323
Zener diode
9.4..10.6V, Izt=5mA, Zzt=20, 200mW
WF
P4SMAJ58C
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=58V, 3.9A, 400W (1ms), Bidir.
WF
P4SMAJ6.0C
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=6V, 35.1A, 400W (1ms), Bidir.
WF
PT7M6314US46D4

SOT-143
Voltage detector IC
4.6V±1.5%, 1570ms, -Restet PPO, -MR
WF
PZU11B1A/DG
Philips
SOD-323
Zener diode
11V±2%, If=200mA, 320mW, halogen-free
WF
R1210N451D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 4.5V, 180kHz
WF
R3132Q46EA3
Ricoh
SOT-143
Voltage detector IC
4.63V±1.5%, -Reset PPO, -MR
WF
R5325N017B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.9V/2.9V±1%, 150mA, +CE, CL
WF
RN5RK331A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=3.3V±1.5%
WF
RP130K391D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 3.9V±1%, 150mA
WF
RP201K131B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 1.3V±1%, 150mA, +CE, AE(Mode)
WF
SMAJ6.0C
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=6.0V, Vbr=6.67..8.15V, 35.1A, 400W(1ms), Bidir.
WF
SMZG3791B
Vishay Semiconductor
DO-215AA
Zener diode
12V±10%, 105mA, Zzt=7, 1.5W
WF
SMZJ3791B
Vishay Semiconductor
DO-214AA
Zener diode
12V±10%, 105mA, Zzt=7, 1.5W
WF
TV04A6V0KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=6.0V, Vbr=6.67..8.15V, Ipp=35.09A, 400W(1ms), Bidir.
WF
TZTC9V1WS
TAITRON Components
SOT-323
Zener diode
8.65..9.56V, Izt=5mA, Zzt=15, 200mW
WF-
RT9013-1BPB
Richtek Technology
SOT-23-5
Linear voltage regulator IC
LDO, 1.25V±2%, 500mA, +CE
WF0
TSDF1205W
Vishay Semiconductor
SOT-343
NPN transistor
UHF-VHF, LN, 9V, 12mA, 40mW, B=50..250, 12GHz
WF2
TSDF1220W
Vishay Semiconductor
SOT-343
NPN transistor
UHF-VHF, LN, 9V, 40mA, 200mW, B=50..150, 12GHz
WFE
BFP93AW
Vishay Semiconductor
SOT-343
NPN transistor
VHF/UHF, 20V, 50mA, 200mW, B=50..200, >6GHz
WFs
BCR08PN
Infineon Technologies
SOT-363
NPN+PNP transistors
Dual, Sw, 50V, 100mA, 250mW, R1/R2=2k2/47k
WFs
BCR112
Infineon Technologies
SOT-23
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=4.7k/4.7k, 140MHz
WFs
BCR112F
Infineon Technologies
TSFP-3
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/4.7k, 140MHz
WFs
BCR112T
Infineon Technologies
SOT-416
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/4.7k, 140MHz
WFs
BCR112W
Infineon Technologies
SOT-323
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=4.7k/4.7k, 140MHz