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 'O5'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
O5
BZD27C15P-M
Vishay Semiconductor
DO-219AB
Zener diode
13.8..15.6V, Zzt=5, Izt=50mA, 800mW, H-free
O5
2SA1331-5
Sanyo Electric
CP
PNP transistor
Sw, Hi-Sp, 60V, 150mA, 150mW, 100MHz, B=140..280
O5
2SA1330-5
NEC Electronics
3MM
PNP transistor
Sw, Amp, HV, 200V, 100mA, 200mW, 120MHz, B=90..180
O54
SO2221AR
SGS-Thomson Microelectronics
SOT-23
NPN transistor
GP, 75V, 800mA, 500mW, >250MHz, B>20

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