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 'W7'

Marking
Name
Manufacturer/Case
Function
W7
AP8822C-37GA
Anwell Semiconductor
SOT-23
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms, Halogen-fre
W7
AP8822C-37GI
Anwell Semiconductor
SC-82
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms, Halogen-fre
W7
AP8822C-37GS
Anwell Semiconductor
SC-82S
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms, Halogen-fre
W7
AP8822C-37GT
Anwell Semiconductor
SC-70
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms, Halogen-fre
W7
AP8822C-37PA
Anwell Semiconductor
SOT-23
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms
W7
AP8822C-37PI
Anwell Semiconductor
SC-82
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms
W7
AP8822C-37PS
Anwell Semiconductor
SC-82S
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms
W7
AP8822C-37PT
Anwell Semiconductor
SC-70
Voltage detector IC
3.7V±2%, -Reset PPO, 200ms
W7
BD46431G
Rohm
SSOP-5
Voltage detector IC
4.3V±1%, -MR, -Reset PPO, 100ms
W7
BZT52B4V3
PanJIT Semiconductor
SOD-123
Zener diode
4.3V±2%, Izt=5mA, Zzt=90, 410mW
W7
BZT52C4V3-F
TAITRON Components
SOD-123F
Zener diode
4.0..4.6V, Izt=5mA, 410mW
W7
BZT52C4V3-V
Vishay Semiconductor
SOD-123
Zener diode
4.3V±5%, Izt=5mA, Zzt=90, 500mW
W7
BZT52C4V3S
PanJIT Semiconductor
SOD-323
Zener diode
4.3V±5%, Izt=5mA, Zzt=90, 200mW
W7
BZT52C4V3WS
TAITRON Components
SOD-323F
Zener diode
4.09..4.52V, Izt=5.0mA, 200mW
W7
BZT52C4V3WT
TAITRON Components
SOD-523
Zener diode
4.09..4.52V, Izt=5mA, Zzt=90, 200mW
W7
BZT52C4V3WU
TAITRON Components
SOD-723
Zener diode
4.09..4.52V, Izt=5mA, Zzt=90, 200mW
W7
BZT52C4V7
Diodes
SOD-123
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 500mW
W7
BZT52C4V7
Diodes
SOD-123
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 500mW
W7
BZT52C4V7LP
Diodes
DFN1006-2
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 250mW
W7
BZT52C4V7LP
Diodes
DFN1006-2
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 250mW
W7
BZT52C4V7S
Diodes
SOD-323
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 200mW
W7
BZT52C4V7S
Diodes
SOD-323
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 200mW
W7
BZT52C4V7T
Diodes
SOD-523
Zener diode
4.7V±5%, Izt=5mA, Zzt=80, 150mW
W7
BZV49-C3V6
Zetex
SOT-89
Zener diode
3.6V±5%, Izt=5mA, 1W
W7
BZX384C4V3-F
TAITRON Components
SOD-323F
Zener diode
4.0..4.6V, Izt=5.0mA, 200mW
W7
BZX384C4V3-V
Vishay Semiconductor
SOD-323
Zener diode
4.3V±5%, Izt=5mA, Zzt=80, 200mW
W7
BZX584C4V3
PanJIT Semiconductor
SOD-523
Zener diode
4.0..4.6V, Izt=5mA, Zzt=90, 200mW
W7
BZX784C4V3
PanJIT Semiconductor
SOD-723
Zener diode
4.09..4.52V, Zzt=90, Izt=5mA, 200mW
W7
BZX84B4V3
PanJIT Semiconductor
SOT-23
Zener diode
4.21..4.39V, Zzt=90, Izt=5mA, 410mW
W7
BZX84C3V6
Central Semiconductor
SOT-23
Zener diode
3.4..3.8V, Zzt=90, Izt=5mA, 350mW
W7
BZX84C3V9
Central Semiconductor
SOT-23
Zener diode
3.7..4.1V, Zzt=90, Izt=5mA, 350mW
W7
BZX84C4V3
Won-Top Electronics
SOT-23
Zener diode
4.0..4.6V, Zzt=90, Izt=5mA, 350mW
W7
BZX84C4V3TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 4.21..4.39V, Zzt=90, Izt=5mA, 200mW
W7
BZX84C4V3W
Won-Top Electronics
SOT-323
Zener diode
4.0..4.6V, Zzt=90, Izt=5mA, 200mW
W7
BZX88-C3V6
Ferranti Semiconductors
SOT-23
Zener diode
3.6V±5%, Iz=5mA, 200mW
W7
CZRW55C4V7-G
Comchip Technology
SOD-123
Zener diode
4.7..5.0V, Zzt=80, Izt=5mA, 500mW
W7
DCC010
Sanyo Electric
MCP
Diode
Dual, Hi-Speed-Sw, 65V, 100mA, Vf=1.2V(0.1A), 3pF, 4ns
W7
ELM7637LBB
ELM Technology
SOT-23
Voltage detector IC
3.7V±2%, -Reset PPO, 500ms
W7
ELM9737CAB
ELM Technology
SOT-89
Voltage detector IC
3.7V±2.5%, +Reset PPO
W7
ELM9737CBB
ELM Technology
SOT-23
Voltage detector IC
3.7V±2.5%, +Reset PPO
W7
LBZT52C4V7T1G
Leshan Radio Company
SOD-123
Zener diode
4.4..5V, Izt=5mA, 500mW
W7
MEZ02-4.3-D3
Matsuki Electronic Company
SOD-323
Zener diode
4.09..4.52V, Izt=5mA, Zzt=95, 200mW
W7
MM3Z4V7
Secos
SOD-323
Zener diode
4.4..5.0V, Izt=5mA, Zzt=80, 200mW
W7
NTE506SM
NTE Electronics
SOT-23
Zener diode
3.6V±5%, If=250mA, 300mW
W7
R1163D171D
Ricoh
SON-6
Linear voltage regulator IC
LDO, 1.7V±1.5%, 150mA, +CE, CL, AE(mode)
W7
R1210N371D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 3.7V, 180kHz
W7
R3111Q371C
Ricoh
SC-82AB
Voltage detector IC
3.7V±2%, -Reset ODO
W7
R5325N007B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.5V/2.8V±1%, 150mA, +CE, CL
W7
TZTC4V3WS
TAITRON Components
SOT-323
Zener diode
4.09..4.52V, Izt=5mA, Zzt=90, 200mW
W70
BZX84-B16

SOT-23
Zener diode
16V±2.5%, Zzt=40, Izt=5mA, 250mW
W71
BZX84-B18

SOT-23
Zener diode
18V±2.5%, Zzt=45, Izt=5mA, 250mW
W72
BZX84-B20

SOT-23
Zener diode
20V±2.5%, Zzt=55, Izt=5mA, 250mW
W73
BZX84-B22

SOT-23
Zener diode
22V±2.5%, Zzt=55, Izt=5mA, 250mW
W74
BZX84-B24

SOT-23
Zener diode
24V±2.5%, Zzt=70, Izt=5mA, 250mW
W75
BZX84-A27

SOT-23
Zener diode
27V±1%, Zzt=80, Izt=5mA, 250mW
W77
PDTA124XU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=22k/47k
W7A
PDTA144TU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1=47k
W7B
PDTA124TU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1=22k
W7C
PDTA115EU

SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=100k/100k
W7G
PBRN113ET

SOT-23
NPN transistor
Sw, 40V, 600mA, 250mW, R1/R2=1k/1k
W7H
PBRP123ET

SOT-23
PNP transistor
Sw, 40V, 600mA, 250mW, R1/R2=2.2k/2.2k
W7J
PBRN123ET

SOT-23
NPN transistor
Sw, 40V, 600mA, 250mW, R1/R2=2.2k/2.2k
W7K
PBRP113ET

SOT-23
PNP transistor
Sw, 40V, 600mA, 250mW, R1/R2=1k/1k
W7L
PBRN113ZT

SOT-23
NPN transistor
Sw, 40V, 600mA, 250mW, R1/R2=1k/10k
W7M
PBRP113ZT

SOT-23
PNP transistor
Sw, 40V, 600mA, 250mW, R1/R2=1k/10k
W7P
PBRN123YT

SOT-23
NPN transistor
Sw, 40V, 600mA, 250mW, R1/R2=2.2k/10k
W7Q
PBRP123YT

SOT-23
PNP transistor
Sw, 40V, 600mA, 250mW, R1/R2=2.2k/10k
W7R
PDTD113ET

SOT-23
NPN transistor
Sw, 50V, 500mA, 250mW, R1/R2=1k/1k
W7S
BZT52B4V3S
Micro Commercial Components
SOD-323
Zener diode
4.21..4.39V, Izt=5mA, Zzt=90, 200mW
W7S
PDTB123ET

SOT-23
PNP transistor
Sw, 50V, 500mA, 250mW, R1/R2=2.2k/2.2k
W7T
PDTD123ET

SOT-23
NPN transistor
Sw, 50V, 500mA, 250mW, R1/R2=2.2k/2.2k
W7U
PDTB113ET

SOT-23
PNP transistor
Sw, 50V, 500mA, 250mW, R1/R2=1k/1k
W7V
PDTD113ZT

SOT-23
NPN transistor
Sw, 50V, 500mA, 250mW, R1/R2=1k/10k
W7W
CMSZDA3V6
Central Semiconductor
SOT-323
Zener diode
Dual, 3.4..3.8V, Zzt=95, 45mA, 275mW
W7W
PDTB113ZT

SOT-23
PNP transistor
Sw, 50V, 500mA, 250mW, R1/R2=1k/10k
W7X
PDTD123YT

SOT-23
NPN transistor
Sw, 50V, 500mA, 250mW, R1/R2=2.2k/10k
W7Y
PDTB123YT

SOT-23
PNP transistor
Sw, 50V, 500mA, 250mW, R1/R2=2.2k/10k