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 '1U'

Marking
Name
Manufacturer/Case
Function
1U
2SC3110
Panasonic
SC-59A
NPN transistor
UHF, 15V, 30mA, 200mW, 4.5GHz, B>40
1U
2SC3934
Panasonic
SOT-323
NPN transistor
HF, WB, LN, 15V, 50mA, 150mW, B>40, 4.5GHz
1U
KST2484
Samsung Electronics
SOT-23
NPN transistor
GP, 60V, 50mA, 350mW, B>250
1U
MMBT2484L
ON Semiconductor
SOT-23
NPN transistor
GP, 60V, 100mA, 300mW, B=250..800
1U
R3117K251A
Ricoh
DFN1010-4
Voltage detector IC
2.5V±1%, -Reset ODO, Sense
1U
R3133Q28EA
Ricoh
SOT-143
Voltage detector IC
2.8V±1.5%, +Reset PPO, -MR
1U
R5326N019A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/2.9V±1%, 150mA, +CE
1U
RP100K241B
Ricoh
PLP1612-4
Linear voltage regulator IC
LDO, LN, 2.4V±0.8%, 200mA, +CE
1U
RP112K281B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.8V±1%, 150mA, +CE
1U
RP173K281A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.8V±1%, 150mA, -CE
1U
XC6127N45BNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset ODO, -MR, Rt=100ms
1U
XC6217C2627R-G
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 2.6V±2%, 200mA, +CE
1U
XC6217C262NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.6V±2%, 200mA, +CE
1U
XC6223B3519R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL
1U
XC6229D3911R-G
Torex Semiconductor
BGA-4
Linear voltage regulator IC
LDO, 3.9V±1%, 300mA, +CE
1U0
XC6102F631MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.1V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U1
S-1333B31-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, CL
1U1
S-1333B31-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, CL
1U1
XC6102F632MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.2V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U2
S-1333B32-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, CL
1U2
S-1333B32-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, CL
1U2
XC6102F633MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.3V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U3
S-1333B33-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE, CL
1U3
S-1333B33-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE, CL
1U3
XC6102F634MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.4V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U4
S-1333B34-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, CL
1U4
S-1333B34-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, CL
1U4
XC6102F635MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.5V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U5
S-1333B35-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL
1U5
S-1333B35-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL
1U5
XC6102F636MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.6V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U6
XC6102F637MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.7V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U7
XC6102F638MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.8V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U8
XC6102F639MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.9V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1U9
XC6102F640MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.0V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UA
S-1333B10-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE, CL
1UA
S-1333B10-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE, CL
1UA
XC6102F641MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.1V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UB
S-1333B11-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE, CL
1UB
S-1333B11-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE, CL
1UB
XC6102F642MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.2V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UC
S-1333B12-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE, CL
1UC
S-1333B12-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE, CL
1UC
XC6102F643MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.3V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UD
S-1333B13-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE, CL
1UD
S-1333B13-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE, CL
1UD
XC6102F644MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.4V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UE
S-1333B14-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE, CL
1UE
S-1333B14-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE, CL
1UE
XC6102F645MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UF
S-1333B15-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE, CL
1UF
S-1333B15-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE, CL
1UF
XC6102F616MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.6V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UF
XC6102F646MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UG
S-1333B16-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE, CL
1UG
S-1333B16-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE, CL
1UH
S-1333B17-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, CL
1UH
S-1333B17-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, CL
1UH
XC6102F617MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.7V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UH
XC6102F647MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.7V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UJ
S-1333B18-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE, CL
1UJ
S-1333B18-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE, CL
1UK
S-1333B1J-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE, CL
1UK
S-1333B1J-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE, CL
1UK
XC6102F618MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.8V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UK
XC6102F648MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.8V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UL
S-1333B19-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE, CL
1UL
S-1333B19-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE, CL
1UL
XC6102F619MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.9V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UL
XC6102F649MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.9V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UM
XC6102F620MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.0V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UM
XC6102F650MR
Torex Semiconductor
SOT-25
Voltage detector IC
5.0V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UN
S-1333B20-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE, CL
1UN
S-1333B20-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE, CL
1UN
XC6102F621MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.1V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UO
S-1333B21-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE, CL
1UO
S-1333B21-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE, CL
1UP
S-1333B22-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE, CL
1UP
S-1333B22-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE, CL
1UP
XC6102F622MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.2V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UQ
S-1333B23-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE, CL
1UQ
S-1333B23-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE, CL
1UR
S-1333B24-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE, CL
1UR
S-1333B24-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE, CL
1UR
XC6102F623MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.3V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1US
S-1333B25-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE, CL
1US
S-1333B25-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE, CL
1US
XC6102F624MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.4V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UT
S-1333B26-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE, CL
1UT
S-1333B26-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE, CL
1UT
XC6102F625MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.5V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UU
S-1333B27-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE, CL
1UU
S-1333B27-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE, CL
1UU
XC6102F626MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.6V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UV
S-1333B28-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE, CL
1UV
S-1333B28-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE, CL
1UV
XC6102F627MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.7V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UX
S-1333B2J-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE, CL
1UX
S-1333B2J-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE, CL
1UX
XC6102F628MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.8V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UY
S-1333B29-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, CL
1UY
S-1333B29-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, CL
1UY
XC6102F629MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.9V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms
1UZ
S-1333B30-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE, CL
1UZ
S-1333B30-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE, CL
1UZ
XC6102F630MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.0V±2%, Hst, -MR, -Reset ODO, Wt=1.6s, Rt=400ms