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 '2U'

Marking
Name
Manufacturer/Case
Function
2U
KST63
Samsung Electronics
SOT-23
NPN darlington
GP, 30V, 500mA, 350mW, B>6000, >125MHz
2U
MMBTA63
Motorola
SOT-23
PNP darlington
GP, 30V, 500mA, 300mW, B>5000, >125MHz
2U
R1210N221C
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 2.1V, 100kHz
2U
R3117K491A
Ricoh
DFN1010-4
Voltage detector IC
4.9V±1%, -Reset ODO, Sense
2U
R3133Q38EA
Ricoh
SOT-143
Voltage detector IC
3.8V±1.5%, +Reset PPO, -MR
2U
RP100K241D
Ricoh
PLP1612-4
Linear voltage regulator IC
LDO, LN, 2.4V±0.8%, 200mA, +CE, CL
2U
RP173K511A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 5.1V±1%, 150mA, -CE
2U
RQ5RW27CA
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 2.7V±2%, 150mA
2U
SMBTA63
Infineon Technologies
SOT-23
PNP darlington
GP, 30V, 500mA, 300mW, B>5000, >125MHz
2U
UMZ30K
Rohm
SOT-343
Zener diode
Dual, 29.19..30.69V, Izt=5mA, 200mW
2U
XC6127N45CNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset ODO, -MR, Rt=200ms
2U
XC6221C33B7R
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 3.35V±1%, 200mA, +CE, PDR
2U
XC6221C33BNR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.35V±1%, 200mA, +CE, PDR
2U
XC6223C3519R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, PDR
2U
XC6229H24B1R-G
Torex Semiconductor
BGA-4
Linear voltage regulator IC
LDO, 2.45V±1%, 300mA, +CE, ICP
2U0
XC6103F631MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.1V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U1
STZ8075A

SOD-323
Zener diode
7.07..7.43V, Izt=5mA, Zzt=20, 300mW
2U1
XC6103F632MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.2V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U2
XC6103F633MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.3V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U3
XC6103F634MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.4V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U4
XC6103F635MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.5V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U5
XC6103F636MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.6V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U6
XC6103F637MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.7V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U7
XC6103F638MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.8V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U8
XC6103F639MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.9V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2U9
XC6103F640MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.0V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UA
XC6103F641MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.1V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UB
XC6103F642MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.2V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UC
XC6103F643MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.3V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UD
XC6103F644MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.4V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UE
XC6103F645MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UF
XC6103F616MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.6V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UF
XC6103F646MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UH
XC6103F617MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.7V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UH
XC6103F647MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.7V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UK
XC6103F618MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.8V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UK
XC6103F648MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.8V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UL
XC6103F619MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.9V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UL
XC6103F649MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.9V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UM
XC6103F620MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.0V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UM
XC6103F650MR
Torex Semiconductor
SOT-25
Voltage detector IC
5.0V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UN
XC6103F621MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.1V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UP
XC6103F622MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.2V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UR
XC6103F623MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.3V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2US
XC6103F624MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.4V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UT
XC6103F625MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.5V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UU
XC6103F626MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.6V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UV
XC6103F627MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.7V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UX
XC6103F628MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.8V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UY
XC6103F629MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.9V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms
2UZ
XC6103F630MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.0V±2%, Hst, -MR, +Reset PPO, Wt=1.6s, Rt=400ms