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 '1Q'

Marking
Name
Manufacturer/Case
Function
1Q
FMMT5088
Zetex
SOT-23
NPN transistor
GP, 35V, 50mA, 330mW, B=300..900, >50MHz
1Q
FS2K
Fagor Electronica
DO-214AA
Diode
Rectifier, 800V, 1.5A, Vf<1.1V(1.5A), 4µs
1Q
KST5088
Samsung Electronics
SOT-23
NPN transistor
3GP, 5V, 50mA, 350mW, B=300..900, >50MHz
1Q
MMBT5087
Motorola
SOT-23
PNP transistor
GP, LN, 50V, 50mA, 225mW, B=250..800, >40MHz
1Q
MMBT5088
Motorola
SOT-23
NPN transistor
GP, LN, 35V, 50mA, 225mW, B=300..900, >50MHz
1Q
R3117K211A
Ricoh
DFN1010-4
Voltage detector IC
2.1V±1%, -Reset ODO, Sense
1Q
R3131N44AA
Ricoh
SOT-23
Voltage detector IC
4.4V±1.5%, +Reset PPO, 50ms
1Q
R3133Q24EA
Ricoh
SOT-143
Voltage detector IC
2.4V±1.5%, +Reset PPO, -MR
1Q
R5326N015A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.3V/3.3V±1%, 150mA, +CE
1Q
RP100K311B
Ricoh
PLP1612-4
Linear voltage regulator IC
LDO, LN, 3.1V±0.8%, 200mA, +CE
1Q
RP112K241B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.4V±1%, 150mA, +CE
1Q
RP173K241A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.4V±1%, 150mA, -CE
1Q
TMPT5088
Allegro MicroSystems
SOT-23
NPN transistor
GP, 35V, 50mA, 350mW, B=300..900, >50MHz
1Q1
STZ8039A

SOD-323
Zener diode
3.7..3.97V, Izt=5mA, Zzt=13, 300mW
1Q8
CMSZ5264B
Central Semiconductor
SOT-323
Zener diode
60V±5%, 2.1mA, Zzt=170, 275mW
1QC
CMST5086
Central Semiconductor
SOT-323
PNP transistor
GP, 50V, 50mA, 275mW, B=150..500, 40MHz
1QC
CMST5088
Central Semiconductor
SOT-323
NPN transistor
GP, 35V, 50mA, 275mW, B=300..900, 50MHz