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 '3I'

Marking
Name
Manufacturer/Case
Function
3I
BAT54WCPT
Chenmko Enterprise
SOT-323
Diode
Dual, SBD, 30V, 200mA, Vf<1V(100mA), 5ns
3i
BU34UA3WNVX
Rohm
SSON004X1010
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE
3I
CDZ55C3V9T
Crownpo Technology
0603
Zener diode
3.71..4.10V, Zzt=85, Izt=5mA, 200mW
3I
FS8M
Fagor Electronica
DO-214AB
Diode
Rectifier, 1000, 8A, Vf<1.2V(8A), 60pF