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 'QD'

Marking
Name
Manufacturer/Case
Function
QD
BD5323FVE
Rohm
VSOF-5
Voltage detector IC
2.3V±1%, -Reset PPO
QD
BD5323G
Rohm
SSOP-5
Voltage detector IC
2.3V±1%, -Reset PPO
Qd
BD53E32G-M
Rohm
SSOP-5
Voltage detector IC
3.2V±1%, -Reset PPO
QD
P6SMB18C
Fagor Electronica
DO-214AA
Transient voltage supressor
Vrwm=18V, Vbr=17.1..18.9V, 23.8A, 600W(1ms), Bidir.
QD
P6SMBJ220
PanJIT Semiconductor
DO-214AA
Transient voltage supressor
Vrwm=220V, Vbr=198..242V, 1.5A, 600W(1ms)
QD
PT7M7047CLTA

SOT-23-5
Voltage detector IC
4.7V±1.5%, -Reset PPO
QD
PT7M7047CLTAE

SOT-23-5
Voltage detector IC
4.7V±1.5%, -Reset PPO, Lead free
QD
R1114Q331B
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, Low noise, 3.3V±2%, 150mA, +CE
QD
R1118K321D
Ricoh
DFN1612-4B
Linear voltage regulator IC
3.2V±1%, 150mA, +CE, CL
QD
RN1324A
Toshiba
SOT-323
NPN transistor
Mute, 15V, 500mA, 300mW, R1/R2=10k/10k
QD
RN1424
Toshiba
SOT-346
NPN transistor
Mute, 50V, 800mA, 300mW, R1/R2=10k/10k
QD
RP152L004A
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/1.8V±1%, 150mA, +CE
QD
SM4T6V8
SGS-Thomson Microelectronics
SOD-6
Transient voltage supressor
Vrwm=6.8V, 38A, 400W(1ms)