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 '3O'

Marking
Name
Manufacturer/Case
Function
3O
2SC4497-O
Toshiba
SC-59
NPN transistor
HV, 300V, 100mA, 200mW, B=50..150, 70MHz
3O
2SK0665
Panasonic
SC-70
MOSFET n-type
Sw, 20V, 100mA, 150mW, <50 (20mA), 1/1us
3O
2SK621
Panasonic
SOT-23
MOSFET n-type
Int.Di (S > G), V-MOS, 20V, +100mA
3O
2SK665
Panasonic
SC-70
MOSFET n-type
Sw, 20V, 100mA, 150mW, <50 (20mA), 1/1us
3O
BZD27B12P-M
Vishay Semiconductor
DO-219AB
Zener diode
12V±2%, Zzt=4, Izt=50mA, 800mW, halogen-free
3O1
S-19100C38H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.8V±2.5%, -Reset PPO
3O1
S-19100C38H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.8V±2.5%, -Reset PPO
3O1
S-19100C38H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.8V±2.5%, -Reset PPO
3O2
S-19100C39H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.9V±2.5%, -Reset PPO
3O2
S-19100C39H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.9V±2.5%, -Reset PPO
3O2
S-19100C39H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.9V±2.5%, -Reset PPO
3O3
S-19100C40H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.0V±2.5%, -Reset PPO
3O3
S-19100C40H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.0V±2.5%, -Reset PPO
3O3
S-19100C40H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.0V±2.5%, -Reset PPO
3O4
S-19100C41H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.1V±2.5%, -Reset PPO
3O4
S-19100C41H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.1V±2.5%, -Reset PPO
3O4
S-19100C41H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.1V±2.5%, -Reset PPO
3O5
S-19100C42H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.2V±2.5%, -Reset PPO
3O5
S-19100C42H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.2V±2.5%, -Reset PPO
3O5
S-19100C42H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.2V±2.5%, -Reset PPO
3O6
S-19100C43H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.3V±2.5%, -Reset PPO
3O6
S-19100C43H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.3V±2.5%, -Reset PPO
3O6
S-19100C43H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.3V±2.5%, -Reset PPO
3O7
S-19100C44H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.4V±2.5%, -Reset PPO
3O7
S-19100C44H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.4V±2.5%, -Reset PPO
3O7
S-19100C44H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.4V±2.5%, -Reset PPO
3O8
S-19100C45H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.5V±2.5%, -Reset PPO
3O8
S-19100C45H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.5V±2.5%, -Reset PPO
3O8
S-19100C45H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.5V±2.5%, -Reset PPO
3O9
S-19100C46H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
4.6V±2.5%, -Reset PPO
3O9
S-19100C46H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
4.6V±2.5%, -Reset PPO
3O9
S-19100C46H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
4.6V±2.5%, -Reset PPO
3OA
S-19100C12H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.2V±2%, -Reset PPO
3OA
S-19100C12H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.2V±2%, -Reset PPO
3OA
S-19100C12H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.2V±2%, -Reset PPO
3OB
S-19100C13H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.3V±2%, -Reset PPO
3OB
S-19100C13H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.3V±2%, -Reset PPO
3OB
S-19100C13H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.3V±2%, -Reset PPO
3OC
S-19100C14H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.4V±2%, -Reset PPO
3OC
S-19100C14H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.4V±2%, -Reset PPO
3OC
S-19100C14H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.4V±2%, -Reset PPO
3OD
S-19100C15H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.5V±2%, -Reset PPO
3OD
S-19100C15H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.5V±2%, -Reset PPO
3OD
S-19100C15H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.5V±2%, -Reset PPO
3OE
S-19100C16H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.6V±2%, -Reset PPO
3OE
S-19100C16H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.6V±2%, -Reset PPO
3OE
S-19100C16H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.6V±2%, -Reset PPO
3OF
S-19100C17H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.7V±2%, -Reset PPO
3OF
S-19100C17H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.7V±2%, -Reset PPO
3OF
S-19100C17H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.7V±2%, -Reset PPO
3OG
S-19100C18H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.8V±2%, -Reset PPO
3OG
S-19100C18H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.8V±2%, -Reset PPO
3OG
S-19100C18H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.8V±2%, -Reset PPO
3OH
S-19100C19H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
1.9V±2%, -Reset PPO
3OH
S-19100C19H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
1.9V±2%, -Reset PPO
3OH
S-19100C19H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
1.9V±2%, -Reset PPO
3OI
S-19100C20H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.0V±2%, -Reset PPO
3OI
S-19100C20H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.0V±2%, -Reset PPO
3OI
S-19100C20H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.0V±2%, -Reset PPO
3OJ
S-19100C21H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.1V±2%, -Reset PPO
3OJ
S-19100C21H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.1V±2%, -Reset PPO
3OJ
S-19100C21H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.1V±2%, -Reset PPO
3OK
S-19100C22H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.2V±2%, -Reset PPO
3OK
S-19100C22H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.2V±2%, -Reset PPO
3OK
S-19100C22H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.2V±2%, -Reset PPO
3OL
S-19100C23H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.3V±2%, -Reset PPO
3OL
S-19100C23H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.3V±2%, -Reset PPO
3OL
S-19100C23H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.3V±2%, -Reset PPO
3OM
S-19100C24H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.4V±2.5%, -Reset PPO
3OM
S-19100C24H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.4V±2.5%, -Reset PPO
3OM
S-19100C24H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.4V±2.5%, -Reset PPO
3ON
S-19100C25H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.5V±2.5%, -Reset PPO
3ON
S-19100C25H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.5V±2.5%, -Reset PPO
3ON
S-19100C25H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.5V±2.5%, -Reset PPO
3OO
S-19100C26H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.6V±2.5%, -Reset PPO
3OO
S-19100C26H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.6V±2.5%, -Reset PPO
3OO
S-19100C26H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.6V±2.5%, -Reset PPO
3OP
S-19100C27H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.7V±2.5%, -Reset PPO
3OP
S-19100C27H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.7V±2.5%, -Reset PPO
3OP
S-19100C27H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.7V±2.5%, -Reset PPO
3OQ
S-19100C28H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.8V±2.5%, -Reset PPO
3OQ
S-19100C28H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.8V±2.5%, -Reset PPO
3OQ
S-19100C28H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.8V±2.5%, -Reset PPO
3OR
S-19100C29H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
2.9V±2.5%, -Reset PPO
3OR
S-19100C29H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
2.9V±2.5%, -Reset PPO
3OR
S-19100C29H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
2.9V±2.5%, -Reset PPO
3OS
S-19100C30H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.0V±2.5%, -Reset PPO
3OS
S-19100C30H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.0V±2.5%, -Reset PPO
3OS
S-19100C30H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.0V±2.5%, -Reset PPO
3OT
S-19100C31H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.1V±2.5%, -Reset PPO
3OT
S-19100C31H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.1V±2.5%, -Reset PPO
3OT
S-19100C31H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.1V±2.5%, -Reset PPO
3OU
S-19100C32H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.2V±2.5%, -Reset PPO
3OU
S-19100C32H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.2V±2.5%, -Reset PPO
3OU
S-19100C32H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.2V±2.5%, -Reset PPO
3OV
S-19100C33H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.3V±2.5%, -Reset PPO
3OV
S-19100C33H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.3V±2.5%, -Reset PPO
3OV
S-19100C33H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.3V±2.5%, -Reset PPO
3OW
S-19100C34H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.4V±2.5%, -Reset PPO
3OW
S-19100C34H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.4V±2.5%, -Reset PPO
3OW
S-19100C34H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.4V±2.5%, -Reset PPO
3OX
S-19100C35H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.5V±2.5%, -Reset PPO
3OX
S-19100C35H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.5V±2.5%, -Reset PPO
3OX
S-19100C35H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.5V±2.5%, -Reset PPO
3OY
S-19100C36H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.6V±2.5%, -Reset PPO
3OY
S-19100C36H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.6V±2.5%, -Reset PPO
3OY
S-19100C36H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.6V±2.5%, -Reset PPO
3OZ
S-19100C37H-I4T1U
Seiko Instruments
SNT-4A
Voltage detector IC
3.7V±2.5%, -Reset PPO
3OZ
S-19100C37H-M5T2U
Seiko Instruments
SOT-23-5
Voltage detector IC
3.7V±2.5%, -Reset PPO
3OZ
S-19100C37H-N4T2U
Seiko Instruments
SC-82AB
Voltage detector IC
3.7V±2.5%, -Reset PPO