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 '5U'

Marking
Name
Manufacturer/Case
Function
5U
MM5Z33V
Fairchild Semiconductor
SOD-523FL
Zener diode
31..35V, Zzt=80, Izt=2mA, 200mW
5U
R1210N251C
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 2.5V, 100kHz
5U
R3133Q18EC
Ricoh
SOT-143
Voltage detector IC
1.8V±1.5%, +Reset ODO, -MR
5U
RP101K242B
Ricoh
DFN1612-4B
Linear voltage regulator IC
LDO, LN, 2.3V±0.8%, 300mA, +CE
5U
RP173K281D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.8V±1%, 150mA, +CE, CL
5U
RP200K261B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.6V±1.0%, 300mA, +CE, AE(mode)
5U
RP500N114A
Ricoh
SOT-23-6W
DC/DC voltage converter IC
PWM step-down, 1.1V±24mV, 600mA, +CE, CL
5U
RQ5RW57CA
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 5.7V±2%, 150mA
5U
SD05
Semtech
SOD-323
Transient voltage supressor
Vrwm=5V, Vbr=6.2..7.3V, Ipp=24A, 350W(1ms)
5U
TCBZX584C33V
Tak Cheong Semiconductor
SOD-523FL
Zener diode
31..35V, Izt=2mA, Zzt=80, 200mW
5U
TCMM5Z33V
Tak Cheong Semiconductor
SOD-523FL
Zener diode
31..35V, Izt=2mA, Zzt=80, 200mW
5U
UMZ3.6K
Rohm
SOT-343
Zener diode
Dual, 3.60..3.845V, Izt=5mA, 200mW
5U
XC6127C45ANR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rt=50ms
5U
XC6127N45FNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, +Reset ODO, -MR, Rt=50ms
5U
XC6217C26A7R-G
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 2.65V±2%, 200mA, +CE
5U
XC6217C26ANR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.65V±2%, 200mA, +CE
5U
XC6223F3519R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL, ICP
5U
XC6501A19ANR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.95V±1%, 200mA, +CE
5U1
STZ8390A

SOD-323
Zener diode
37.1..39V, Izt=2mA, Zzt=300, 300mW
5U8
XC9236E08D0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U8
XC9236E08D4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U8
XC9236E08DER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U8
XC9236E08DMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U9
XC9236E09D0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U9
XC9236E09D4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U9
XC9236E09DER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5U9
XC9236E09DMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UA
XC6127C45AMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rt=50ms
5UB
XC6127C45BMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rt=100ms
5UC
XC6127C45CMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rt=200ms
5UD
TV05A191KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vbr=211..258V, Vrwm=190V, Ipp=1.47A, 500W(1ms), Bidir.
5UD
XC6127C45DMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rt=400ms
5UE
TV05A191JB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vbr=211..232V, Vrwm=190V, Ipp=1.62A, 500W(1ms), Bidir.
5UE
XC6127C45EMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rt=800ms
5UF
XC6127C45FMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rt=50ms
5UH
XC6127C45GMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rt=100ms
5UK
XC6127C45HMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rt=200ms
5UL
XC6127C45JMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rt=400ms
5UL
XC9236E0LD0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UL
XC9236E0LD4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UL
XC9236E0LDER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UL
XC9236E0LDMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UM
XC6127C45KMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rt=800ms
5UM
XC9236E0MD0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UM
XC9236E0MD4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UM
XC9236E0MDER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UM
XC9236E0MDMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UN
XC6127C46AMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rt=50ms
5UP
XC6127C46BMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rt=100ms
5UR
XC6127C46CMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rt=200ms
5US
XC6127C46DMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rt=400ms
5UT
XC6127C46EMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rt=800ms
5UU
XC6127C46FMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rt=50ms
5UV
XC6127C46GMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rt=100ms
5UX
XC6127C46HMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rt=200ms
5UY
XC6127C46JMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rt=400ms
5UZ
XC6127C46KMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rt=800ms