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'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
5U
SD05
Semtech
SOD-323
Transient voltage supressor
Vrwm=5V, Vbr=6.2..7.3V, Ipp=24A, 350W(1ms)
5U
BZX584C33
Rectron Semiconductor
SOD-523
Zener diode
31..35V, Izt=2mA, Zzt=80, 200mW
5U
MM5Z33V
Fairchild Semiconductor
SOD-523FL
Zener diode
31..35V, Zzt=80, Izt=2mA, 200mW
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
APX803L05-48C3
Diodes
SOT-323
Voltage detector IC
4.8V±1.5%, -Reset ODO, Rdt=55ms
5U
RQ5RW57CA
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 5.7V±2%, 150mA
5U
R3133Q18EC
Ricoh
SOT-143
Voltage detector IC
1.8V±1.5%, +Reset ODO, -MR
5U
UMZ3.6K
Rohm
SOT-343
Zener diode
Dual, 3.60..3.845V, Izt=5mA, 200mW
5U
IXD5127C45ANR
IXYS
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, 50ms Rt delay
5U
IXD5127N45FNR
IXYS
SSOT-24
Voltage detector IC
4.5V±0.8%, +Reset ODO, -MR, 50ms Rt delay
5U
XC6127C45ANR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=50ms
5U
XC6127N45FNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, +Reset ODO, -MR, Rdt=50ms
5U
XC6129C45FNR-G
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset PPO, Rel. Delay, Det. Delay, Undef. Protect
5U
XC6129N45FNR-G
Torex Semiconductor
SSOT-24
Voltage detector IC
4.5V±0.8%, -Reset ODO, Rel. Delay, Det. Delay, Undef. Protect
5U
XC6217C26ANR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.65V±2%, 200mA, +CE
5U
XC6501A19ANR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.95V±1%, 200mA, +CE
5U
RP173K281D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.8V±1%, 150mA, +CE, CL
5U
RP101K242B
Ricoh
DFN1612-4B
Linear voltage regulator IC
LDO, LN, 2.3V±0.8%, 300mA, +CE
5U
XC6217C26A7R-G
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 2.65V±2%, 200mA, +CE
5U
IXD5126C51A7R-G
IXYS
USPN-4B02
Voltage detector IC
5.1V±0.8%, -Reset PPO
5U
XC6126C51A7R-G
Torex Semiconductor
USPN-4B02
Voltage detector IC
5.1V±0.8%, -Reset PPO
5U
XC6223F3519R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL, ICP
5U
XC6129C45F9R-G
Torex Semiconductor
USPQ-4B05
Voltage detector IC
4.5V±0.8%, -Reset PPO, Rel. Delay, Det. Delay, Undef. Protect
5U
XC6129N45F9R-G
Torex Semiconductor
USPQ-4B05
Voltage detector IC
4.5V±0.8%, -Reset ODO, Rel. Delay, Det. Delay, Undef. Protect
5U
R1210N251C
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM st-up, 2.5V, 100kHz
5U
R5106N331A
Ricoh
SOT-23-6
Voltage detector IC
3.3V±1%, -Reset ODO, Inhibit
5U
RP500N114A
Ricoh
SOT-23-6W
DC/DC voltage converter IC
PWM st-dwn, 1.1V±24mV, 600mA, +CE, CL
5U
RP200K261B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.6V±1.0%, 300mA, +CE, AE(mode)
5U1
STZ8390A
JinYu semiconductor
SOD-323
Zener diode
37.1..39V, Izt=2mA, Zzt=300, 300mW
5U5
UM1451S-45
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.5V±3%, 300mA
5U6
UM1451S-46
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.6V±3%, 300mA
5U7
UM1451S-47
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.7V±3%, 300mA
5U8
UM1451S-48
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.8V±3%, 300mA
5U8
IXD3236E08DMR-G
IXYS
SOT-25
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
5U8
IXD3236E08D0R-G
IXYS
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
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
IXD3236E08DER-G
IXYS
USP-6C
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
IXD3236E08D4R-G
IXYS
USP-6EL
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
5U9
UM1451S-49
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 4.9V±3%, 300mA
5U9
IXD3236E09DMR-G
IXYS
SOT-25
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
5U9
IXD3236E09D0R-G
IXYS
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.9V±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
IXD3236E09DER-G
IXYS
USP-6C
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
IXD3236E09D4R-G
IXYS
USP-6EL
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
5UA
UM1451S-50
Union Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 5.0V±3%, 300mA
5UA
IXD5127C45AMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=50ms
5UA
XC6127C45AMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=50ms
5UB
IXD5127C45BMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=100ms
5UB
XC6127C45BMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=100ms
5UC
IXD5127C45CMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=200ms
5UC
XC6127C45CMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=200ms
5UD
TV05A191KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vbr=211..258V, Vrwm=190V, Ipp=1.47A, 500W(1ms), Bidir.
5UD
IXD5127C45DMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=400ms
5UD
XC6127C45DMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=400ms
5UE
TV05A191JB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vbr=211..232V, Vrwm=190V, Ipp=1.62A, 500W(1ms), Bidir.
5UE
IXD5127C45EMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=800ms
5UE
XC6127C45EMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, -Reset PPO, -MR, Rdt=800ms
5UF
IXD5127C45FMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=50ms
5UF
XC6127C45FMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=50ms
5UH
IXD5127C45GMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=100ms
5UH
XC6127C45GMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=100ms
5UK
IXD5127C45HMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=200ms
5UK
XC6127C45HMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=200ms
5UL
IXD3236E0LDMR-G
IXYS
SOT-25
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UL
IXD5127C45JMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=400ms
5UL
XC6127C45JMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=400ms
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
5UL
IXD3236E0LD0R-G
IXYS
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
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
IXD3236E0LDER-G
IXYS
USP-6C
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
IXD3236E0LD4R-G
IXYS
USP-6EL
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
5UM
IXD3236E0MDMR-G
IXYS
SOT-25
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
5UM
IXD5127C45KMR
IXYS
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=800ms
5UM
XC6127C45KMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±0.8%, +Reset PPO, -MR, Rdt=800ms
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
5UM
IXD3236E0MD0R-G
IXYS
WLP-5-03
DC/DC voltage converter IC
PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
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
IXD3236E0MDER-G
IXYS
USP-6C
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
IXD3236E0MD4R-G
IXYS
USP-6EL
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
5UN
IXD5127C46AMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=50ms
5UN
XC6127C46AMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=50ms
5UP
IXD5127C46BMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=100ms
5UP
XC6127C46BMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=100ms
5UR
IXD5127C46CMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=200ms
5UR
XC6127C46CMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=200ms
5US
IXD5127C46DMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=400ms
5US
XC6127C46DMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=400ms
5UT
IXD5127C46EMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=800ms
5UT
XC6127C46EMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, -Reset PPO, -MR, Rdt=800ms
5UU
IXD5127C46FMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=50ms
5UU
XC6127C46FMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=50ms
5UV
IXD5127C46GMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=100ms
5UV
XC6127C46GMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=100ms
5UX
IXD5127C46HMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=200ms
5UX
XC6127C46HMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=200ms
5UY
IXD5127C46JMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=400ms
5UY
XC6127C46JMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=400ms
5UZ
IXD5127C46KMR
IXYS
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=800ms
5UZ
XC6127C46KMR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±0.8%, +Reset PPO, -MR, Rdt=800ms

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