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 'WM'

Marking
Name
Manufacturer/Case
Function
WM
BCR183L3
Infineon Technologies
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/10k, 130MHz
WM
BD46291G
Rohm
SSOP-5
Voltage detector IC
2.9V±1%, -MR, -Reset PPO, 100ms
WM
BZT52B16
PanJIT Semiconductor
SOD-123
Zener diode
16V±2%, Izt=5mA, Zzt=40, 410mW
WM
BZT52B16S
Micro Commercial Components
SOD-323
Zener diode
15.68..16.3V, Izt=5mA, Zzt=40, 200mW
WM
BZT52C16-F
TAITRON Components
SOD-123F
Zener diode
15.3..17.1V, Izt=5mA, 410mW
WM
BZT52C16-V
Vishay Semiconductor
SOD-123
Zener diode
16V±5%, Izt=5mA, Zzt=40, 500mW
WM
BZT52C16S
PanJIT Semiconductor
SOD-323
Zener diode
16V±5%, Izt=5mA, Zzt=40, 200mW
WM
BZT52C16WS
TAITRON Components
SOD-323F
Zener diode
15.20..16.80V, Izt=5.0mA, 200mW
WM
BZT52C16WT
TAITRON Components
SOD-523
Zener diode
15.20..16.80V, Izt=5mA, Zzt=40, 200mW
WM
BZT52C16WU
TAITRON Components
SOD-723
Zener diode
15.20..16.80V, Izt=5mA, Zzt=40, 200mW
WM
BZT52C20
Diodes
SOD-123
Zener diode
20V±5%, Izt=5mA, Zzt=55, 500mW
WM
BZT52C20
Diodes
SOD-123
Zener diode
20V±5%, Izt=5mA, Zzt=55, 500mW
WM
BZT52C20S
Diodes
SOD-323
Zener diode
20V±5%, Izt=5mA, Zzt=55, 200mW
WM
BZT52C20S
Diodes
SOD-323
Zener diode
20V±5%, Izt=5mA, Zzt=55, 200mW
WM
BZT52C20T
Diodes
SOD-523
Zener diode
20V±5%, Izt=5mA, Zzt=55, 150mW
WM
BZX384C16-F
TAITRON Components
SOD-323F
Zener diode
15.3..17.1V, Izt=5.0mA, 200mW
WM
BZX384C16-V
Vishay Semiconductor
SOD-323
Zener diode
16V±5%, Izt=5mA, Zzt=10, 200mW
WM
BZX584C16
PanJIT Semiconductor
SOD-523
Zener diode
15.3..17.1V, Izt=5mA, Zzt=40, 200mW
WM
BZX784C16
PanJIT Semiconductor
SOD-723
Zener diode
15.20..16.80V, Zzt=40, Izt=5mA, 200mW
WM
BZX84B16
PanJIT Semiconductor
SOT-23
Zener diode
15.68..16.32V, Zzt=40, Izt=5mA, 410mW
WM
BZX84C16
Won-Top Electronics
SOT-23
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 350mW
WM
BZX84C16TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 15.68..16.32V, Zzt=40, Izt=5mA, 200mW
WM
BZX84C16W
Won-Top Electronics
SOT-323
Zener diode
15.3..17.1V, Zzt=40, Izt=5mA, 200mW
WM
CD214A-T64CA
Bourns
DO-214AC
Transient voltage supressor
Vrwm=64V, Irsm=3.9A, 400W(1ms), Bidir.
WM
CZRW55C20-G
Comchip Technology
SOD-123
Zener diode
20.0..21.20V, Zzt=55, Izt=5mA, 500mW
WM
LBZT52C20T1G
Leshan Radio Company
SOD-123
Zener diode
18.8..21.2V, Izt=5mA, 500mW
WM
MEZ02-16-D3
Matsuki Electronic Company
SOD-323
Zener diode
15.20..16.80V, Izt=5mA, Zzt=40, 200mW
WM
MIC2211-1.6/2.8BML
Micrel
MLF-10
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=1.6V(150mA)/2.8V(300mA)±1%, +CE
WM
MM3Z20V
Secos
SOD-323
Zener diode
18.8..21.2V, Izt=5mA, Zzt=55, 200mW
WM
P4SMA150C
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=143..158V, Vrwm=128V, 2.0A, 400W(1ms), Bidir.
WM
P4SMAJ64CA
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=64V, 3.9A, 400W (1ms), Bidir.
WM
P4SMAJ7.0CA
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=7V, 33.3A, 400W (1ms), Bidir.
WM
PMF7.0CA
StarHope
SOD-123FL
Transient voltage supressor
Vbr=7.78..8.60V, Vrwm=7.0V, Ipp=16.7A, 200W(1ms), Bidir.
WM
PT7M6314US48D3

SOT-143
Voltage detector IC
4.8V±1.5%, 200ms, -Restet PPO, -MR
WM
PZU12B2A/DG
Philips
SOD-323
Zener diode
12V±2%, If=200mA, 320mW, halogen-free
WM
R1210N511D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 5.1V, 180kHz
WM
R3133Q26EA3
Ricoh
SOT-143
Voltage detector IC
2.63V±1.5%, +Reset PPO, -MR
WM
R5325N021B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.5V/1.2V±1%, 150mA, +CE, CL
WM
RN5RK281A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=2.8V±1.5%
WM
RP130K451D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 4.5V±1%, 150mA
WM
RP201K191B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 1.9V±1%, 150mA, +CE, AE(Mode)
WM
SMAJ64CA
Diodes
DO-214AC
Transient voltage supressor
Vrwm=64V, Vbr=71.1..78.6V, 3.9A, 400W(1ms), Bidir.
WM
SMAJ7.0CA
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=7.0V, Vbr=7.78..8.6V, 33.3A, 400W(1ms), Bidir.
WM
TV04A7V0JB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=7.0V, Vbr=7.78..8.60V, Ipp=33.33A, 400W(1ms), Bidir.
WM
TZTC16WS
TAITRON Components
SOT-323
Zener diode
15.20..16.80V, Izt=5mA, Zzt=40, 200mW
WM-
RT9198-1HPB
Richtek Technology
SOT-23-5
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE
WM1
S-1315D42-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 4.2V±1%, 200mA, +CE
WM1
S-1315D42-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 4.2V±1%, 200mA, +CE
WM2
S-1315D34-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.4V±1%, 200mA, +CE
WM2
S-1315D34-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.4V±1%, 200mA, +CE
WM3
S-1315D35-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.5V±1%, 200mA, +CE
WM3
S-1315D35-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.5V±1%, 200mA, +CE
WM4
S-1315D36-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.6V±1%, 200mA, +CE
WM4
S-1315D36-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.6V±1%, 200mA, +CE
WM5
S-1315D37-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.7V±1%, 200mA, +CE
WM5
S-1315D37-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.7V±1%, 200mA, +CE
WM6
S-1315D38-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.8V±1%, 200mA, +CE
WM6
S-1315D38-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.8V±1%, 200mA, +CE
WM7
S-1315D39-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.9V±1%, 200mA, +CE
WM7
S-1315D39-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.9V±1%, 200mA, +CE
WM8
S-1315D40-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 4.0V±1%, 200mA, +CE
WM8
S-1315D40-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 4.0V±1%, 200mA, +CE
WM9
S-1315D41-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 4.1V±1%, 200mA, +CE
WM9
S-1315D41-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 4.1V±1%, 200mA, +CE
WMA
S-1315D10-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.0V±1%, 200mA, +CE
WMA
S-1315D10-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.0V±1%, 200mA, +CE
WMB
S-1315D11-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.1V±1%, 200mA, +CE
WMB
S-1315D11-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.1V±1%, 200mA, +CE
WMC
S-1315D12-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.2V±1%, 200mA, +CE
WMC
S-1315D12-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.2V±1%, 200mA, +CE
WMD
S-1315D13-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.3V±1%, 200mA, +CE
WMD
S-1315D13-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.3V±1%, 200mA, +CE
WME
S-1315D14-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.4V±1%, 200mA, +CE
WME
S-1315D14-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.4V±1%, 200mA, +CE
WMF
S-1315D15-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.5V±1%, 200mA, +CE
WMF
S-1315D15-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.5V±1%, 200mA, +CE
WMG
S-1315D16-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.6V±1%, 200mA, +CE
WMG
S-1315D16-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.6V±1%, 200mA, +CE
WMH
S-1315D17-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.7V±1%, 200mA, +CE
WMH
S-1315D17-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.7V±1%, 200mA, +CE
WMI
S-1315D18-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.8V±1%, 200mA, +CE
WMI
S-1315D18-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.8V±1%, 200mA, +CE
WMJ
S-1315D1J-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.85V±1%, 200mA, +CE
WMJ
S-1315D1J-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.85V±1%, 200mA, +CE
WMK
S-1315D19-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 1.9V±1%, 200mA, +CE
WMK
S-1315D19-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.9V±1%, 200mA, +CE
WML
S-1315D20-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.0V±1%, 200mA, +CE
WML
S-1315D20-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.0V±1%, 200mA, +CE
WMM
S-1315D21-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.1V±1%, 200mA, +CE
WMM
S-1315D21-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.1V±1%, 200mA, +CE
WMN
S-1315D22-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.2V±1%, 200mA, +CE
WMN
S-1315D22-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.2V±1%, 200mA, +CE
WMO
BF998RW
Silicon General
SOT-343R
MOSFET n-type
Dual gate, 12V, 30mA, 200mW, Nf=1dB, ldss=20mA, Gf>24m
WMO
S-1315D23-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.3V±1%, 200mA, +CE
WMO
S-1315D23-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.3V±1%, 200mA, +CE
WMP
S-1315D24-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.4V±1%, 200mA, +CE
WMP
S-1315D24-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.4V±1%, 200mA, +CE
WMQ
S-1315D25-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.5V±1%, 200mA, +CE
WMQ
S-1315D25-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.5V±1%, 200mA, +CE
WMR
S-1315D26-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.6V±1%, 200mA, +CE
WMR
S-1315D26-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.6V±1%, 200mA, +CE
WMs
BCR183
Infineon Technologies
SOT-23
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=10k/10k, 200MHz
WMs
BCR183F
Infineon Technologies
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/10k, 130MHz
WMs
BCR183T
Infineon Technologies
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=10k/10k, 130MHz
WMs
BCR183W
Infineon Technologies
SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=10k/10k, 200MHz
WMS
S-1315D27-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.7V±1%, 200mA, +CE
WMS
S-1315D27-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.7V±1%, 200mA, +CE
WMT
S-1315D28-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.8V±1%, 200mA, +CE
WMT
S-1315D28-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.8V±1%, 200mA, +CE
WMU
S-1315D2J-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.85V±1%, 200mA, +CE
WMU
S-1315D2J-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.85V±1%, 200mA, +CE
WMV
S-1315D29-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 2.9V±1%, 200mA, +CE
WMV
S-1315D29-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.9V±1%, 200mA, +CE
WMW
S-1315D30-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.0V±1%, 200mA, +CE
WMW
S-1315D30-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.0V±1%, 200mA, +CE
WMX
S-1315D31-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.1V±1%, 200mA, +CE
WMX
S-1315D31-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.1V±1%, 200mA, +CE
WMY
S-1315D32-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.2V±1%, 200mA, +CE
WMY
S-1315D32-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.2V±1%, 200mA, +CE
WMZ
S-1315D33-A6T2U3
Seiko Instruments
HSNT-6
Linear voltage regulator IC
LDO, 3.3V±1%, 200mA, +CE
WMZ
S-1315D33-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.3V±1%, 200mA, +CE