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 'WD'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
WD
SMZG3790B
Vishay Semiconductor
DO-215AA
DO-215AA
Zener diode
11V±10%, 115mA, Zzt=6, 1.5W
11V±10%, 115mA, Zzt=6, 1.5W
WD
BZT52B7V5
PanJIT Semiconductor
SOD-123
SOD-123
Zener diode
7.5V±2%, Izt=5mA, Zzt=7, 410mW
7.5V±2%, Izt=5mA, Zzt=7, 410mW
WD
BZT52C7V5
Won-Top Electronics
SOD-123
SOD-123
Zener diode
7.5V±5%, Izt=5mA, Zzt=15, 410mW
7.5V±5%, Izt=5mA, Zzt=15, 410mW
WD
BZT52C7V5-V
Vishay Semiconductor
SOD-123
SOD-123
Zener diode
7.5V±5%, Izt=5mA, Zzt=15, 500mW
7.5V±5%, Izt=5mA, Zzt=15, 500mW
WD
BZT52C8V2
Diodes
SOD-123
SOD-123
Zener diode
8.2V±5%, Izt=5mA, Zzt=15, 500mW
8.2V±5%, Izt=5mA, Zzt=15, 500mW
WD
BZT52C8V2
Diodes
SOD-123
SOD-123
Zener diode
8.2V±5%, Izt=5mA, Zzt=15, 500mW
8.2V±5%, Izt=5mA, Zzt=15, 500mW
WD
BZT52C8V2-G
Taiwan Semiconductor Company
SOD-123
SOD-123
Zener diode
7.79..8.61V, Izt=5mA, Zzt=15, 350mW
7.79..8.61V, Izt=5mA, Zzt=15, 350mW
WD
CZRW55C8V2-G
Comchip Technology
SOD-123
SOD-123
Zener diode
8.2..8.70V, Zzt=15, Izt=5mA, 500mW
8.2..8.70V, Zzt=15, Izt=5mA, 500mW
WD
LBZT52C8V2T1G
Leshan Radio Company
SOD-123
SOD-123
Zener diode
7.7..8.7V, Izt=5mA, 500mW
7.7..8.7V, Izt=5mA, 500mW
WD
BZT52-C7V5S
PanJIT Semiconductor
SOD-323
SOD-323
Zener diode
7.5V±5%, Izt=5mA, Zzt=15, 200mW
7.5V±5%, Izt=5mA, Zzt=15, 200mW
WD
BZT52B7V5S
Micro Commercial Components
SOD-323
SOD-323
Zener diode
7.35..7.65V, Izt=5mA, Zzt=15, 200mW
7.35..7.65V, Izt=5mA, Zzt=15, 200mW
WD
BZT52C8V2S
Diodes
SOD-323
SOD-323
Zener diode
8.2V±5%, Izt=5mA, Zzt=15, 200mW
8.2V±5%, Izt=5mA, Zzt=15, 200mW
WD
BZT52C8V2S
Diodes
SOD-323
SOD-323
Zener diode
8.2V±5%, Izt=5mA, Zzt=15, 200mW
8.2V±5%, Izt=5mA, Zzt=15, 200mW
WD
BZX384C7V5-V
Vishay Semiconductor
SOD-323
SOD-323
Zener diode
7.5V±5%, Izt=5mA, Zzt=6, 200mW
7.5V±5%, Izt=5mA, Zzt=6, 200mW
WD
MEZ02-7.5-D3
Matsuki Electronic Company
SOD-323
SOD-323
Zener diode
7.13..7.88V, Izt=5mA, Zzt=7, 200mW
7.13..7.88V, Izt=5mA, Zzt=7, 200mW
WD
MM3Z8V2
Secos
SOD-323
SOD-323
Zener diode
7.7..8.7V, Izt=5mA, Zzt=15, 200mW
7.7..8.7V, Izt=5mA, Zzt=15, 200mW
WD
PZU10B3A/DG
NXP Semiconductors
SOD-323
SOD-323
Zener diode
10.11..10.55V, Zzt=10(Iz=5mA), 320mW, H-free
10.11..10.55V, Zzt=10(Iz=5mA), 320mW, H-free
WD
BZT52C7V5-F
TAITRON Components
SOD-123F
SOD-123F
Zener diode
7.0..7.9V, Izt=5mA, 410mW
7.0..7.9V, Izt=5mA, 410mW
WD
BZT52C7V5WS
TAITRON Components
SOD-323F
SOD-323F
Zener diode
7.13..7.88V, Izt=5.0mA, 200mW
7.13..7.88V, Izt=5.0mA, 200mW
WD
BZX384C7V5-F
TAITRON Components
SOD-323F
SOD-323F
Zener diode
7.0..7.9V, Izt=5.0mA, 200mW
7.0..7.9V, Izt=5.0mA, 200mW
WD
BZT52C7V5WT
TAITRON Components
SOD-523
SOD-523
Zener diode
7.13..7.88V, Izt=5mA, Zzt=15, 200mW
7.13..7.88V, Izt=5mA, Zzt=15, 200mW
WD
BZT52C8V2T
Diodes
SOD-523
SOD-523
Zener diode
8.2V±5%, Izt=5mA, Zzt=15, 150mW
8.2V±5%, Izt=5mA, Zzt=15, 150mW
WD
BZX584C7V5
PanJIT Semiconductor
SOD-523
SOD-523
Zener diode
7.0..7.9V, Izt=5mA, Zzt=15, 200mW
7.0..7.9V, Izt=5mA, Zzt=15, 200mW
WD
BZT52C7V5WU
TAITRON Components
SOD-723
SOD-723
Zener diode
7.13..7.88V, Izt=5mA, Zzt=15, 200mW
7.13..7.88V, Izt=5mA, Zzt=15, 200mW
WD
BZX784C7V5
PanJIT Semiconductor
SOD-723
SOD-723
Zener diode
7.13..7.88V, Zzt=15, Izt=5mA, 200mW
7.13..7.88V, Zzt=15, Izt=5mA, 200mW
WD
SMZJ3790B
Vishay Semiconductor
DO-214AA
DO-214AA
Zener diode
11V±10%, 115mA, Zzt=6, 1.5W
11V±10%, 115mA, Zzt=6, 1.5W
WD
EC76SMAJ5.0C
E-CMOS
DO-214AC
DO-214AC
Transient voltage supressor
Vbr=6.40..7.82V, Vrwm=5.0V, Ipp=41.7A, 400W(1ms), Bidir.
Vbr=6.40..7.82V, Vrwm=5.0V, Ipp=41.7A, 400W(1ms), Bidir.
WD
P4SMAJ5.0C
Shanghai Lunsure Electronic Technology
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=5.0V, Vbr=6.40..7.30V, Ipp=41.6A, 400W(1ms), Bidir.
Vrwm=5.0V, Vbr=6.40..7.30V, Ipp=41.6A, 400W(1ms), Bidir.
WD
P4SMAJ54C
PanJIT Semiconductor
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=54V, Vbr=60.0..76.0V, Ipp=4.2A, 400W(1ms), Bidir.
Vrwm=54V, Vbr=60.0..76.0V, Ipp=4.2A, 400W(1ms), Bidir.
WD
P4SMAJ54C
Shanghai Lunsure Electronic Technology
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=54V, Vbr=60.0..73.3V, Ipp=4.2A, 400W(1ms), Bidir.
Vrwm=54V, Vbr=60.0..73.3V, Ipp=4.2A, 400W(1ms), Bidir.
WD
P4SMAJ54C
Won-Top Electronics
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=54V, Vbr=60.0..76.0V, Ipp=4.2A, 400W(1ms), Bidir.
Vrwm=54V, Vbr=60.0..76.0V, Ipp=4.2A, 400W(1ms), Bidir.
WD
SMAJ5.0C
Socay Electronics
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=5.0V, Vbr=6.40..7.30V, Ipp=41.67A, 400W(1ms), Bidir.
Vrwm=5.0V, Vbr=6.40..7.30V, Ipp=41.67A, 400W(1ms), Bidir.
WD
SMAJ5.0C
Vishay Semiconductor
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=5.0V, Vbr=6.40..7.0V, 41.7A, 400W(1ms), Bidir.
Vrwm=5.0V, Vbr=6.40..7.0V, 41.7A, 400W(1ms), Bidir.
WD
SMAJ54CG
First Semiconductor
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=54V, Vbr=60.0..76.0V, Ipp=4.2A, 400W(1ms), Bidir.
Vrwm=54V, Vbr=60.0..76.0V, Ipp=4.2A, 400W(1ms), Bidir.
WD
TV04A5V0KB-G
Comchip Technology
DO-214AC
DO-214AC
Transient voltage supressor
Vrwm=5.0V, Vbr=6.40..7.30V, Ipp=41.67A, 400W(1ms), Bidir.
Vrwm=5.0V, Vbr=6.40..7.30V, Ipp=41.67A, 400W(1ms), Bidir.
WD
APX803S05-44SR
Diodes
SOT-23
SOT-23
Voltage detector IC
4.38V±1.5%, -Reset ODO, Rdt=50ms
4.38V±1.5%, -Reset ODO, Rdt=50ms
WD
BZX84B7V5
PanJIT Semiconductor
SOT-23
SOT-23
Zener diode
7.35..7.65V, Zzt=15, Izt=5mA, 410mW
7.35..7.65V, Zzt=15, Izt=5mA, 410mW
WD
BZX84C7V5
Won-Top Electronics
SOT-23
SOT-23
Zener diode
7.0..7.9V, Zzt=15, Izt=5mA, 350mW
7.0..7.9V, Zzt=15, Izt=5mA, 350mW
WD
BZX84C7V5W
Won-Top Electronics
SOT-323
SOT-323
Zener diode
7.0..7.9V, Zzt=15, Izt=5mA, 200mW
7.0..7.9V, Zzt=15, Izt=5mA, 200mW
WD
MMBD4448WPT
Chenmko Enterprise
SOT-323
SOT-323
Diode
Sw, 80V, 250mA, Vf<1V(100mA), 4ns
Sw, 80V, 250mA, Vf<1V(100mA), 4ns
WD
TZTC7V5WS
TAITRON Components
SOT-323
SOT-323
Zener diode
7.13..7.88V, Izt=5mA, Zzt=15, 200mW
7.13..7.88V, Izt=5mA, Zzt=15, 200mW
WD
2SC5214-D
Isahaya Electronics
SOT-89
SOT-89
NPN transistor
AF-Amp-Drv, 30V, 1A, 500mW, 100MHz, B=90..180
AF-Amp-Drv, 30V, 1A, 500mW, 100MHz, B=90..180
WD
BCR141L3
Infineon Technologies
TSLP-3
TSLP-3
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
WD
PT7M6315US45D4
Pericom Technology
SOT-143
SOT-143
Voltage detector IC
4.5V±1.5%, 1570ms, -Reset ODO, -MR
4.5V±1.5%, 1570ms, -Reset ODO, -MR
WD
R3132Q30EA8
Ricoh
SOT-143
SOT-143
Voltage detector IC
3.08V±1.5%, -Reset PPO, -MR
3.08V±1.5%, -Reset PPO, -MR
WD
RP130K371D
Ricoh
DFN1010-4
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 3.7V±1%, 150mA
LDO, LN, +CE, CL, 3.7V±1%, 150mA
WD
RP300K42AA
Ricoh
DFN1010-4B
DFN1010-4B
Voltage detector IC
4.2V±1%, +Reset ODO, -MR, Rdt=50ms
4.2V±1%, +Reset ODO, -MR, Rdt=50ms
WD
L74VHC1G132DT
Leshan Radio Company
SOT-23-5
SOT-23-5
CMOS logic IC
2-input NAND Schmitt-trigger
2-input NAND Schmitt-trigger
WD
R1210N431D
Ricoh
SOT-23-5
SOT-23-5
DC/DC voltage converter IC
PWM st-up, 4.3V, 180kHz
PWM st-up, 4.3V, 180kHz
WD
RN5RK201A
Ricoh
SOT-23-5
SOT-23-5
DC/DC voltage converter IC
VFM st-up, Vout=2.0V±1.5%, 500mA
VFM st-up, Vout=2.0V±1.5%, 500mA
WD
L74VHC1G132DF
Leshan Radio Company
SOT-353
SOT-353
CMOS logic IC
2-input NAND Schmitt-trigger
2-input NAND Schmitt-trigger
WD
BD46371G
Rohm
SSOP-5
SSOP-5
Voltage detector IC
3.7V±1%, -MR, -Reset PPO, 100ms
3.7V±1%, -MR, -Reset PPO, 100ms
WD
R5325N013B
Ricoh
SOT-23-6
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.7V/1.8V±1%, 150mA, +CE, CL
LDO, Dual out, Vout1/Vout2=2.7V/1.8V±1%, 150mA, +CE, CL
WD
BZX84C7V5TW
PanJIT Semiconductor
SOT-363
SOT-363
Zener diode
Triple, 7.35..7.65V, Zzt=15, Izt=5mA, 200mW
Triple, 7.35..7.65V, Zzt=15, Izt=5mA, 200mW
WD
RP201K111B
Ricoh
DFN1212-6
DFN1212-6
Linear voltage regulator IC
LDO, 1.1V±1%, 150mA, +CE, AE(Mode)
LDO, 1.1V±1%, 150mA, +CE, AE(Mode)
WD
2SC5738
Toshiba
2-3S1A
2-3S1A
NPN transistor
Sw, Hi-sp, 40V, 3.5A, 625mW, B=400..1000
Sw, Hi-sp, 40V, 3.5A, 625mW, B=400..1000
WD
HD74LV1GW06ACM
Renessas
CMPAK-6
CMPAK-6
CMOS logic IC
Dual inverter buffer/driver (ODO)
Dual inverter buffer/driver (ODO)
WD-
RT9818C-27PB
Richtek Technology
SOT-23-5
SOT-23-5
Voltage detector IC
2.7V±1.5%, -Reset ODO, Rdt=220ms
2.7V±1.5%, -Reset ODO, Rdt=220ms
WD=
RT9818C-27GB
Richtek Technology
SOT-23-5
SOT-23-5
Voltage detector IC
2.7V±1.5%, -Reset ODO, Rdt=220ms
2.7V±1.5%, -Reset ODO, Rdt=220ms
WDs
BCR141
Infineon Technologies
SOT-23
SOT-23
NPN transistor
Sw, 50V, 100mA, 200mW, R1/R2=22k/22k, 130MHz
Sw, 50V, 100mA, 200mW, R1/R2=22k/22k, 130MHz
WDs
BCR141W
Infineon Technologies
SOT-323
SOT-323
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
WDs
BCR141T
Infineon Technologies
SOT-416
SOT-416
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
WDs
BCR141F
Infineon Technologies
TSFP-3
TSFP-3
NPN transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
Sw, 50V, 100mA, 250mW, R1/R2=22k/22k, 130MHz
WD95
BCV63
NXP Semiconductors
SOT-143
SOT-143
NPN transistor
Dual, 30V, 100mA, 250mW, B=110..800, >100MHz
Dual, 30V, 100mA, 250mW, B=110..800, >100MHz
WD96
BCV63B
NXP Semiconductors
SOT-143
SOT-143
NPN transistor
Dual, 30V, 100mA, 250mW, B=200..450, >100MHz
Dual, 30V, 100mA, 250mW, B=200..450, >100MHz
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