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 '1I'

Marking
Name
Manufacturer/Case
Function
1i
BU31UA3WNVX
Rohm
SSON004X1010
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE
1I
FUS1K
Fagor Electronica
DO-214AC
Diode
U-fast Rec. Rect., 800V, 1.5A, Vf<1.7V(1A), 75ns
1IR
2SB1440-R
Panasonic
SOT-89
PNP transistor
AF-Amp, 50V, 2A, 1W, B=120..240, 150MHz
1IS
2SB1440-S
Panasonic
SOT-89
PNP transistor
AF-Amp, 50V, 2A, 1W, B=170..340, 150MHz