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 '4.'

Marking
Name
Manufacturer/Case
Function
4.
MMSZ5246SPT
Chenmko Enterprise
SOD-523
Zener diode
16V±5%, Izt=7.8mA, Zzt=17, 225mW
4.3
HZU4.3B1
Renessas
URP
Zener diode
4.01..4.21V, Izt=5mA, Zzt=130, 200mW
4.3
HZU4.3B2
Renessas
URP
Zener diode
4.15..4.34V, Izt=5mA, Zzt=130, 200mW
4.3
HZU4.3B3
Renessas
URP
Zener diode
4.28..4.48V, Izt=5mA, Zzt=130, 200mW
4.3
MAZ80430H
Panasonic
SC-76
Zener diode
4.31..4.54V, Zzt=130(5mA), 150mW
4.3
RKZ4.3B2KG
Renessas
URP
Zener diode
4.15..4.34V, Izt=5mA, Zzt=130, 200mW
4.3
RKZ4.3B2KJ
Renessas
UFP
Zener diode
4.15..4.34V, Izt=5mA, Zzt=130, 150mW
4.3
TZT4.3W
TAITRON Components
SOT-23
Zener diode
4.0..4.50V, Izt=5mA, Zzt=130, 200mW
4.3
Z02W4.3V
Korea Electronics
SOT-23
Zener diode
4.0..4.50V, Izt=5mA, Zzt=130, 200mW
4.3B
HZF4.3BP
Renessas
LRP
Zener diode
4.3V±5%, Iz=40mA, 900mW
4.3B
PTZ4.3B
Rohm
SOD-106
Zener diode
4.3V±10%, Izt=40mA, 1W
4.3C
HZF4.3CP
Renessas
LRP
Zener diode
4.3V±10%, Iz=40mA, 900mW
4.3G
ZD4.3G-AE3
Unisonic Technologies
SOT-23
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, Halogen free
4.3G
ZD4.3G-CA2
Unisonic Technologies
SOD-123
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, Halogen free
4.3G
ZD4.3G-CB2
Unisonic Technologies
SOD-323
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, Halogen free
4.3H
BZX84C4V3-V
Korea Electronics
SOT-23
Zener diode
4.13..4.35V, Izt=5mA, Zzt=130, 300mW
4.3H
MAZ3043-H
Panasonic
SC-59
Zener diode
4..4.6V, If=100mA, Zzt=130, 200mW
4.3L
MAZ3043-L
Panasonic
SC-59
Zener diode
4..4.6V, If=100mA, Zzt=130, 200mW
4.3L
ZD4.3L-AE3
Unisonic Technologies
SOT-23
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, Lead free
4.3L
ZD4.3L-CA2
Unisonic Technologies
SOD-123
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, Lead free
4.3L
ZD4.3L-CB2
Unisonic Technologies
SOD-323
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, Lead free
4.3M
MAZ3043-M
Panasonic
SC-59
Zener diode
4..4.6V, If=100mA, Zzt=130, 200mW
4.3X
02CZ4.3-X
Toshiba
SC-59
Zener diode
4..4.23V, Izt=5mA, 200mW
4.3X
TZT4.3XW
TAITRON Components
SOT-23
Zener diode
4.0..4.23V, Izt=5mA, Zzt=130, 200mW
4.3X
Z02W4.3VX
Korea Electronics
SOT-23
Zener diode
4.0..4.23V, Izt=5mA, Zzt=130, 200mW
4.3Y
02CZ4.3-Y
Toshiba
SC-59
Zener diode
4.13..4.35V, Izt=5mA, 200mW
4.3Y
TZT4.3YW
TAITRON Components
SOT-23
Zener diode
4.13..4.35V, Izt=5mA, Zzt=130, 200mW
4.3Y
Z02W4.3VY
Korea Electronics
SOT-23
Zener diode
4.13..4.35V, Izt=5mA, Zzt=130, 200mW
4.3Z
02CZ4.3-Z
Toshiba
SC-59
Zener diode
4.25..4.5V, Izt=5mA, 200mW
4.3Z
TZT4.3ZW
TAITRON Components
SOT-23
Zener diode
4.25..4.50V, Izt=5mA, Zzt=130, 200mW
4.3Z
Z02W4.3VZ
Korea Electronics
SOT-23
Zener diode
4.25..4.50V, Izt=5mA, Zzt=130, 200mW
4.7
HZU4.7B1
Renessas
URP
Zener diode
4.42..4.61V, Izt=5mA, Zzt=130, 200mW
4.7
HZU4.7B2
Renessas
URP
Zener diode
4.55..4.75V, Izt=5mA, Zzt=130, 200mW
4.7
HZU4.7B3
Renessas
URP
Zener diode
4.69..4.90V, Izt=5mA, Zzt=130, 200mW
4.7
MAZ5047
Panasonic
MP2
Zener diode
4.4..5V, Zzt=50(5mA), 500mW
4.7
MAZ80470H
Panasonic
SC-76
Zener diode
4.74..4.99V, Zzt=80(5mA), 150mW
4.7
MAZY047
Panasonic
NMiniP2
Zener diode
4.4..5V, Zzt=60(20mA), 1W
4.7
RKZ4.7B2KG
Renessas
URP
Zener diode
4.55..4.75V, Izt=5mA, Zzt=130, 200mW
4.7
RKZ4.7B2KJ
Renessas
UFP
Zener diode
4.55..4.75V, Izt=5mA, Zzt=130, 150mW
4.7
TZT4.7W
TAITRON Components
SOT-23
Zener diode
4.40..4.90V, Izt=5mA, Zzt=120 , 200mW
4.7
Z02W4.7V
Korea Electronics
SOT-23
Zener diode
4.40..4.90V, Izt=5mA, Zzt=120 , 200mW
4.7B
HZF4.7BP
Renessas
LRP
Zener diode
4.7V±5%, Iz=40mA, 900mW
4.7B
PTZ4.7B
Rohm
SOD-106
Zener diode
4.7V±10%, Izt=40mA, 1W
4.7C
HZF4.7CP
Renessas
LRP
Zener diode
4.7V±10%, Iz=40mA, 900mW
4.7G
ZD4.7G-AE3
Unisonic Technologies
SOT-23
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, Halogen free
4.7G
ZD4.7G-CA2
Unisonic Technologies
SOD-123
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, Halogen free
4.7G
ZD4.7G-CB2
Unisonic Technologies
SOD-323
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, Halogen free
4.7H
BZX84C4V7-V
Korea Electronics
SOT-23
Zener diode
4.53..4.76V, Izt=5mA, Zzt=120 , 300mW
4.7H
MAZ3047-H
Panasonic
SC-59
Zener diode
4.4..5V, If=100mA, Zzt=80 , 200mW
4.7L
MAZ3047-L
Panasonic
SC-59
Zener diode
4.4..5V, If=100mA, Zzt=80 , 200mW
4.7L
ZD4.7L-AE3
Unisonic Technologies
SOT-23
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, Lead free
4.7L
ZD4.7L-CA2
Unisonic Technologies
SOD-123
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, Lead free
4.7L
ZD4.7L-CB2
Unisonic Technologies
SOD-323
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, Lead free
4.7M
MAZ3047-M
Panasonic
SC-59
Zener diode
4.4..5V, If=100mA, Zzt=80 , 200mW
4.7W
MAZ3047W
Panasonic
SOT-143
Zener diode
Dual, 4.7V, If=100mA, Zzt=50 , 200mW
4.7X
02CZ4.7-X
Toshiba
SC-59
Zener diode
4.40..4.63V, Izt=5mA, 200mW
4.7X
TZT4.7XW
TAITRON Components
SOT-23
Zener diode
4.40..4.63V, Izt=5mA, Zzt=120 , 200mW
4.7X
Z02W4.7VX
Korea Electronics
SOT-23
Zener diode
4.40..4.63V, Izt=5mA, Zzt=120 , 200mW
4.7Y
02CZ4.7-Y
Toshiba
SC-59
Zener diode
4.53..4.76V, Izt=5mA, 200mW
4.7Y
TZT4.7YW
TAITRON Components
SOT-23
Zener diode
4.53..4.76V, Izt=5mA, Zzt=120 , 200mW
4.7Y
Z02W4.7VY
Korea Electronics
SOT-23
Zener diode
4.53..4.76V, Izt=5mA, Zzt=120 , 200mW
4.7Z
02CZ4.7-Z
Toshiba
SC-59
Zener diode
4.66..4.9V, Izt=5mA, 200mW
4.7Z
TZT4.7ZW
TAITRON Components
SOT-23
Zener diode
4.66..4.90V, Izt=5mA, Zzt=120 , 200mW
4.7Z
Z02W4.7VZ
Korea Electronics
SOT-23
Zener diode
4.66..4.90V, Izt=5mA, Zzt=120 , 200mW