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.'
Tap on the package name to see a picture of it
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
RKZ4.3B2KG
Renessas
URP
Zener diode
4.15..4.34V, Izt=5mA, Zzt=130, 200mW
4.3
MAZ80430H
Panasonic
SC-90A
Zener diode
4.31..4.54V, Zzt=130(5mA), 150mW
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
4.7
MAZ5047
Panasonic
MP2
Zener diode
4.4..5V, Zzt=50(5mA), 500mW
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
RKZ4.7B2KG
Renessas
URP
Zener diode
4.55..4.75V, Izt=5mA, Zzt=130, 200mW
4.7
MAZ80470H
Panasonic
SC-90A
Zener diode
4.74..4.99V, Zzt=80(5mA), 150mW
4.7
RKZ4.7B2KJ
Renessas
UFP
Zener diode
4.55..4.75V, Izt=5mA, Zzt=130, 150mW
4.7
MAZY047
Panasonic
NMiniP2
Zener diode
4.4..5V, Zzt=60(20mA), 1W
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
4.3B
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-CA2
Unisonic Technologies
SOD-123
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, H-free
4.3G
ZD4.3G-CB2
Unisonic Technologies
SOD-323
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, H-free
4.3G
ZD4.3G-AE3
Unisonic Technologies
SOT-23
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, H-free
4.3H
MAZ3043-H
Panasonic
SC-59
Zener diode
4..4.6V, If=100mA, Zzt=130, 200mW
4.3H
BZX84C4V3-V
Korea Electronics
SOT-23
Zener diode
4.13..4.35V, Izt=5mA, Zzt=130, 300mW
4.3L
ZD4.3L-CA2
Unisonic Technologies
SOD-123
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, L-free
4.3L
ZD4.3L-CB2
Unisonic Technologies
SOD-323
Zener diode
4.3V±5%, Zzt=100, Izt=5mA, 225mW, L-free
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, L-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
4.7B
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-CA2
Unisonic Technologies
SOD-123
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, H-free
4.7G
ZD4.7G-CB2
Unisonic Technologies
SOD-323
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, H-free
4.7G
ZD4.7G-AE3
Unisonic Technologies
SOT-23
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, H-free
4.7H
MAZ3047-H
Panasonic
SC-59
Zener diode
4.4..5V, If=100mA, Zzt=80, 200mW
4.7H
BZX84C4V7-V
Korea Electronics
SOT-23
Zener diode
4.53..4.76V, Izt=5mA, Zzt=120, 300mW
4.7L
ZD4.7L-CA2
Unisonic Technologies
SOD-123
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, L-free
4.7L
ZD4.7L-CB2
Unisonic Technologies
SOD-323
Zener diode
4.7V±5%, Zzt=100, Izt=5mA, 225mW, L-free
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, L-free
4.7M
MAZ3047-M
Panasonic
SC-59
Zener diode
4.4..5V, If=100mA, Zzt=80, 200mW
4.7W
MA3047W
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
4.3FMB
RD4.3FMB
NEC Electronics
MiniMold-2
Zener diode
4.0..4.5V, Izt=5mA, Zzt=140, 1W
4.3MB1
RD4.3MB1
NEC Electronics
SC-59
Zener diode
4.01..4.21V, Izt=5mA, Zzt=130, 200mW
4.3MB2
RD4.3MB2
NEC Electronics
SC-59
Zener diode
4.15..4.34V, Izt=5mA, Zzt=130, 200mW
4.3MB3
RD4.3MB3
NEC Electronics
SC-59
Zener diode
4.28..4.48V, Izt=5mA, Zzt=130, 200mW
4.3MWB
RD4.3MWB
NEC Electronics
SC-59
Zener diode
Dual, 4.01..4.48V, Iz=5mA, Zz=130, 200mW
4.7FMB
RD4.7FMB
NEC Electronics
MiniMold-2
Zener diode
4.4..4.9V, Izt=5mA, Zzt=100, 1W
4.7MB1
RD4.7MB1
NEC Electronics
SC-59
Zener diode
4.42..4.61V, Izt=5mA, Zzt=130, 200mW
4.7MB2
RD4.7MB2
NEC Electronics
SC-59
Zener diode
4.55..4.75V, Izt=5mA, Zzt=130, 200mW
4.7MB3
RD4.7MB3
NEC Electronics
SC-59
Zener diode
4.69..4.90V, Izt=5mA, Zzt=130, 200mW
4.7MWB
RD4.7MWB
NEC Electronics
SC-59
Zener diode
Dual, 4.42..4.90V, Iz=5mA, Zz=130, 200mW

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