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 'Q9'

Marking
Name
Manufacturer/Case
Function
Q9
BZD27C150P-M
Vishay Semiconductor
SOD-123FL
Zener diode
138..156V, Zzt=130, Izt=5mA, 150W(1ms)
Q9
ELM7649HBB
ELM Technology
SOT-23
Voltage detector IC
4.9V±2%, +Reset PPO, 500ms
Q9
R1121N191A
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, Low noise, 1.9V±2%, 150mA, -CE
Q9
R5210N008C
Ricoh
SOT-23-6W
DC/DC voltage converter IC
PWM step-down, Vr=3.3V, DC/DCout=1.5V, Vdet= 4V
Q9
RP114K171D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, CL
Q98
2SD2098PT-Q
Chenmko Enterprise
SOT-89
NPN transistor
AF, Sw, 20V, 5A, B=120..270, 150MHz
Q997
TS4997IQT
SGS-Thomson Microelectronics
QFN-16
Linear IC
AF PA, BTL, 2.7..5.5V, 2x1W(5V/8), separate shutdown
Q9A
S-1133B37-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 3.7V±1.0%, 300mA, +CE
Q9A
S-1133B37-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.7V±1.0%, 300mA, +CE
Q9B
S-1133B38-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 3.8V±1.0%, 300mA, +CE
Q9B
S-1133B38-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.8V±1.0%, 300mA, +CE
Q9C
S-1133B39-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 3.9V±1.0%, 300mA, +CE
Q9C
S-1133B39-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.9V±1.0%, 300mA, +CE
Q9D
S-1133B40-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.0V±1.0%, 300mA, +CE
Q9D
S-1133B40-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.0V±1.0%, 300mA, +CE
Q9E
S-1133B41-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.1V±1.0%, 300mA, +CE
Q9E
S-1133B41-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.1V±1.0%, 300mA, +CE
Q9F
S-1133B42-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.2V±1.0%, 300mA, +CE
Q9F
S-1133B42-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.2V±1.0%, 300mA, +CE
Q9G
S-1133B43-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.3V±1.0%, 300mA, +CE
Q9G
S-1133B43-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.3V±1.0%, 300mA, +CE
Q9H
S-1133B44-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.4V±1.0%, 300mA, +CE
Q9H
S-1133B44-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.4V±1.0%, 300mA, +CE
Q9I
S-1133B45-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.5V±1.0%, 300mA, +CE
Q9I
S-1133B45-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.5V±1.0%, 300mA, +CE
Q9J
S-1133B46-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.6V±1.0%, 300mA, +CE
Q9J
S-1133B46-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.6V±1.0%, 300mA, +CE
Q9K
S-1133B47-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.7V±1.0%, 300mA, +CE
Q9K
S-1133B47-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.7V±1.0%, 300mA, +CE
Q9L
S-1133B48-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.8V±1.0%, 300mA, +CE
Q9L
S-1133B48-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.8V±1.0%, 300mA, +CE
Q9M
S-1133B49-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 4.9V±1.0%, 300mA, +CE
Q9M
S-1133B49-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 4.9V±1.0%, 300mA, +CE
Q9N
S-1133B50-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.0V±1.0%, 300mA, +CE
Q9N
S-1133B50-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.0V±1.0%, 300mA, +CE
Q9O
S-1133B51-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.1V±1.0%, 300mA, +CE
Q9O
S-1133B51-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.1V±1.0%, 300mA, +CE
Q9P
S-1133B52-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.2V±1.0%, 300mA, +CE
Q9P
S-1133B52-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.2V±1.0%, 300mA, +CE
Q9Q
S-1133B53-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.3V±1.0%, 300mA, +CE
Q9Q
S-1133B53-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.3V±1.0%, 300mA, +CE
Q9R
S-1133B54-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.4V±1.0%, 300mA, +CE
Q9R
S-1133B54-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.4V±1.0%, 300mA, +CE
Q9S
S-1133B55-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.5V±1.0%, 300mA, +CE
Q9S
S-1133B55-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.5V±1.0%, 300mA, +CE
Q9T
S-1133B56-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.6V±1.0%, 300mA, +CE
Q9T
S-1133B56-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.6V±1.0%, 300mA, +CE
Q9U
S-1133B57-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.7V±1.0%, 300mA, +CE
Q9U
S-1133B57-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.7V±1.0%, 300mA, +CE
Q9V
S-1133B58-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.8V±1.0%, 300mA, +CE
Q9V
S-1133B58-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.8V±1.0%, 300mA, +CE
Q9W
S-1133B59-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 5.9V±1.0%, 300mA, +CE
Q9W
S-1133B59-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 5.9V±1.0%, 300mA, +CE
Q9X
S-1133B60-I8T1G
Seiko Instruments
SNT-8A
Linear voltage regulator IC
LDO, 6.0V±1.0%, 300mA, +CE
Q9X
S-1133B60-U5T1G
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 6.0V±1.0%, 300mA, +CE