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 'OB'

Marking
Name
Manufacturer/Case
Function
OB
PT7M7029CLTA

SOT-23-5
Voltage detector IC
2.9V±1.5%, -Reset PPO
OB
PT7M7029CLTAE

SOT-23-5
Voltage detector IC
2.9V±1.5%, -Reset PPO, Lead free
OB
Si1405DL
Siliconix
SOT-363
MOSFET p-type
V-MOS, LogL, 8V, ±1.6A, <0.21
OB2
S-8337AAAC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.3V)
OBA
S-8337AAAA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.3V)
OBB
S-8337AAAB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.3V)
OBC
S-8337AABA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.2V)
OBC
TPA2018D1YZF
Texas Instruments
BGA-9
Linear IC
AF PA, BTL, class-D, 2.5..5.5V, 3W(5V/4), shutdown, I2C
OBD
S-8337AABB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.2V)
OBE
S-8337AABC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.2V)
OBEI
OPA653IDRB
Texas Instruments
VSON-8
Operational amplifier IC
Wide-band, Fixed gain, JFET, ±6.5V, 2V/V, 500MHz
OBF
S-8337AACA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.1V)
OBG
S-8337AACB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.1V)
OBH
S-8337AACC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.1V)
OBI
S-8337AADA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.0V)
OBJ
S-8337AADB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.0V)
OBK
S-8337AADC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(2.0V)
OBL
S-8337AAEA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.9V)
OBM
S-8337AAEB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.9V)
OBN
S-8337AAEC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.9V)
OBO
S-8337AAFA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.8V)
OBP
S-8337AAFB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.8V)
OBQ
S-8337AAFC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.8V)
OBR
S-8337AAGA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.7V)
OBs
BBY66-05W
Infineon Technologies
SOT-323
Capacitance diode
Dual, VCO-Tuning, 12V, 50mA, 12.7..68.7pF(4.5..1V)
OBS
S-8337AAGB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.7V)
OBT
S-8337AAGC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.7V)
OBU
S-8337AAHA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.6V)
OBV
S-8337AAHB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.6V)
OBW
S-8337AAHC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.6V)
OBX
S-8337AAIA-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.5V)
OBY
S-8337AAIB-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.5V)
OBZ
S-8337AAIC-P8T1G
Seiko Instruments
SON-8
Switching voltage regulator IC
Step-up PWM Sw. regulator, UVLO(1.5V)