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 'WN'

Marking
Name
Manufacturer/Case
Function
WN
2SC6061
Toshiba
SOT-23
NPN transistor
Sw, 180V, 1A, 1W, 0.1/0.2µs, B=120..300
WN
BCR185L3
Infineon Technologies
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/47k, 150MHz
WN
BD46281G
Rohm
SSOP-5
Voltage detector IC
2.8V±1%, -MR, -Reset PPO, 100ms
WN
BZT52B18
PanJIT Semiconductor
SOD-123
Zener diode
18V±2%, Izt=5mA, Zzt=45, 410mW
WN
BZT52B18S
Micro Commercial Components
SOD-323
Zener diode
17.6..18.4V, Izt=5mA, Zzt=45, 200mW
WN
BZT52C18-F
TAITRON Components
SOD-123F
Zener diode
16.8..19.1V, Izt=5mA, 410mW
WN
BZT52C18-V
Vishay Semiconductor
SOD-123
Zener diode
18V±5%, Izt=5mA, Zzt=45, 500mW
WN
BZT52C18S
PanJIT Semiconductor
SOD-323
Zener diode
18V±5%, Izt=5mA, Zzt=45, 200mW
WN
BZT52C18WS
TAITRON Components
SOD-323F
Zener diode
17.10..18.90V, Izt=5.0mA, 200mW
WN
BZT52C18WT
TAITRON Components
SOD-523
Zener diode
17.10..18.90V, Izt=5mA, Zzt=45, 200mW
WN
BZT52C18WU
TAITRON Components
SOD-723
Zener diode
17.10..18.90V, Izt=5mA, Zzt=45, 200mW
WN
BZT52C22
Diodes
SOD-123
Zener diode
22V±5%, Izt=5mA, Zzt=55, 500mW
WN
BZT52C22
Diodes
SOD-123
Zener diode
22V±5%, Izt=5mA, Zzt=55, 500mW
WN
BZT52C22S
Diodes
SOD-323
Zener diode
22V±5%, Izt=5mA, Zzt=55, 200mW
WN
BZT52C22S
Diodes
SOD-323
Zener diode
22V±5%, Izt=5mA, Zzt=55, 200mW
WN
BZT52C22T
Diodes
SOD-523
Zener diode
22V±5%, Izt=5mA, Zzt=55, 150mW
WN
BZX384C18-F
TAITRON Components
SOD-323F
Zener diode
16.8..19.1V, Izt=5.0mA, 200mW
WN
BZX384C18-V
Vishay Semiconductor
SOD-323
Zener diode
18V±5%, Izt=5mA, Zzt=10, 200mW
WN
BZX584C18
PanJIT Semiconductor
SOD-523
Zener diode
16.8..19.1V, Izt=5mA, Zzt=45, 200mW
WN
BZX784C18
PanJIT Semiconductor
SOD-723
Zener diode
17.10..18.90V, Zzt=45, Izt=5mA, 200mW
WN
BZX84B18
PanJIT Semiconductor
SOT-23
Zener diode
17.64..18.36V, Zzt=45, Izt=5mA, 410mW
WN
BZX84C18
Won-Top Electronics
SOT-23
Zener diode
16.8..19.1V, Zzt=45, Izt=5mA, 350mW
WN
BZX84C18TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 17.64..18.36V, Zzt=45, Izt=5mA, 200mW
WN
BZX84C18W
Won-Top Electronics
SOT-323
Zener diode
16.8..19.1V, Zzt=45, Izt=5mA, 200mW
WN
CHDTA114YUPT
Chenmko Enterprise
SOT-323
PNP transistor
Sw, 50V, 70mA, 250MHz, R1/R2=10/47k
WN
CZRW55C22-G
Comchip Technology
SOD-123
Zener diode
22.0..23.30V, Zzt=55, Izt=5mA, 500mW
WN
LBZT52C22T1G
Leshan Radio Company
SOD-123
Zener diode
20.8..23.3V, Izt=5mA, 500mW
WN
MEZ02-18-D3
Matsuki Electronic Company
SOD-323
Zener diode
17.10..18.90V, Izt=5mA, Zzt=50, 200mW
WN
MM3Z22V
Secos
SOD-323
Zener diode
20.8..23.3V, Izt=5mA, Zzt=55, 200mW
WN
P4SMAJ7.5C
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=7.5V, 28A, 400W (1ms), Bidir.
WN
P4SMAJ70C
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=70V, 3.2A, 400W (1ms), Bidir.
WN
PT7M6314US48D4

SOT-143
Voltage detector IC
4.8V±1.5%, 1570ms, -Restet PPO, -MR
WN
PZU12B3A/DG
Philips
SOD-323
Zener diode
12V±2%, If=200mA, 320mW, halogen-free
WN
R1210N521D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 5.2V, 180kHz
WN
R3133Q29EA3
Ricoh
SOT-143
Voltage detector IC
2.93V±1.5%, +Reset PPO, -MR
WN
R5325N022B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.7V/2.85V±1%, 150mA, +CE, CL
WN
RN5RK321A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=3.2V±1.5%
WN
RP130K461D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 4.6V±1%, 150mA
WN
RP201K201B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.0V±1%, 150mA, +CE, AE(Mode)
WN
SM4T68C
SGS-Thomson Microelectronics
SOD-6
Transient voltage supressor
Vrwm=68V, 4.3A, 400W(1ms), Bidir.
WN
SMAJ7.5C
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..10.2V, 28A, 400W(1ms), Bidir.
WN
TV04A7V5KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=7.50V, Vbr=8.33..10.20V, Ipp=27.97A, 400W(1ms), Bidir.
WN
TZTC18WS
TAITRON Components
SOT-323
Zener diode
17.10..18.90V, Izt=5mA, Zzt=45, 200mW
WN-
RT9818A-33PB
Richtek Technology
SOT-23-5
Voltage detector IC
3.3V±1.5%, -Reset ODO
WNs
BCR185
Infineon Technologies
SOT-23
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=10k/47k, 200MHz
WNs
BCR185F
Infineon Technologies
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/47k, 150MHz
WNs
BCR185T
Infineon Technologies
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/47k, 150MHz
WNs
BCR185W
Infineon Technologies
SOT-323
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/47k, 200MHz