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 'MU'

Marking
Name
Manufacturer/Case
Function
MU
ASM162JEUSF
PulseCore Semiconductor
SOT-143
Voltage detector IC
4.0V±2%, -MR, +Reset ODO, Lead-free
MU
BAV70WPT
Chenmko Enterprise
SOT-323
Diode
Dual, Sw, 75V, 150mA, Vf<1.25V(150mA), 4ns
MU
BD5238FVE
Rohm
VSOF-5
Voltage detector IC
3.8V±1%, -Reset ODO
MU
BD5238G
Rohm
SSOP-5
Voltage detector IC
3.8V±1%, -Reset ODO
MU
CHN202UPT
Chenmko Enterprise
SOT-323
Diode
Dual, Sw, 80V, 100mA, Vf<1.2V(100mA), 4ns
MU
HR1F2Q
NEC Electronics
SOT-89
PNP transistor
Sw, 80V, 1A, 2W, R1/R2=0k22/2k2
MU
KRC285U
Korea Electronics
SOT-323
NPN transistor
Sw, 50V, 300mA, 900mW, 300MHz, B=350..1200, R1=10k
MU
M1MA142WK
ON Semiconductor
SOT-323
Diode
Dual, Sw, 80V, 100mA, 150mW, Vf<1.2V(100mA), <15pF
MU
M1MA152WK
ON Semiconductor
SC-59
Diode
Dual, Sw, 80V, 100mA, 200mW, Vf<1.2V(100mA), <15pF
MU
MAX8841ELT28+T
Maxim Integrated Products
DFN-6
Linear voltage regulator IC
LDO, 2.8V±2%, 150mA, +CE
MU
P6SMB91
Fagor Electronica
DO-214AA
Transient voltage supressor
Vrwm=91V, Vbr=86.5..95.5V, 4.8A, 600W(1ms)
MU
P6SMBJ45
PanJIT Semiconductor
DO-214AA
Transient voltage supressor
Vrwm=45V, Vbr=50.0..63.3V, 7.5A, 600W(1ms)
mu
PT7M6244NLC3

SC-70
Voltage detector IC
4.4V±1.5%, -Reset ODO
mu
PT7M6244NLC3E

SC-70
Voltage detector IC
4.4V±1.5%, -Reset ODO, Lead free
mu
PT7M6244NLC4

SC-70-4
Voltage detector IC
4.4V±1.5%, -Reset ODO
mu
PT7M6244NLC4E

SC-70-4
Voltage detector IC
4.4V±1.5%, -Reset ODO, Lead free
mu
PT7M6244NLTA3

SOT-23
Voltage detector IC
4.4V±1.5%, -Reset ODO
mu
PT7M6244NLTA3E

SOT-23
Voltage detector IC
4.4V±1.5%, -Reset ODO, Lead free
MU
PT7M7018CLTA

SOT-23-5
Voltage detector IC
1.8V±1.5%, -Reset PPO
MU
PT7M7018CLTAE

SOT-23-5
Voltage detector IC
1.8V±1.5%, -Reset PPO, Lead free
MU
PZU4.7B2A
Philips
SOD-323
Zener diode
4.7V±2%, If=200mA, 320mW
MU
R1118K241B
Ricoh
DFN1612-4B
Linear voltage regulator IC
2.4V±1%, 150mA, +CE
MU
R1122N381A
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, Low noise, 3.8V±2%, 150mA, -CE
MU
SM6T36C
SGS-Thomson Microelectronics
DO-214AA
Transient voltage supressor
Vrwm=30.8V, Vbr=34.2..37.8V, 12A, 600W(1ms), Bidir.
MU
SMBG45
Vishay Semiconductor
DO-215AA
Transient voltage supressor
Vrwm=45V, Vbr=50.0..63.3V, 7.5A, 600W(1ms)
MU
SMBJ45
Vishay Semiconductor
DO-214AA
Transient voltage supressor
Vrwm=45V, Vbr=50.0..63.3V, 7.5A, 600W(1ms)
MU
TV06B450K-G
Comchip Technology
DO-214AA
Transient voltage supressor
Vrwm=45.0V, Vbr=50.0..61.10V, Ipp=7.47A, 600W(1ms)
MU
XC6109N25AN
Torex Semiconductor
SSOT-24
Voltage detector IC
2.5V±2%, +Reset ODO
MU
XC6119N35ANR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.5V±2%, -Reset ODO
MU
XC6120N25N
Torex Semiconductor
SSOT-24
Voltage detector IC
2.5V±2%, N-ch, +Reset ODO
MU
XC6127N46KNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.6V±0.8%, +Reset ODO, -MR, Rt=800ms
MU8
XC9237D08D0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU8
XC9237D08D4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU8
XC9237D08DER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU8
XC9237D08DMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.8V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU9
XC9237D09D0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU9
XC9237D09D4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU9
XC9237D09DER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU9
XC9237D09DMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.9V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MU=
RT9818D-35GV
Richtek Technology
SOT-23
Voltage detector IC
3.5V±1.5%, -Reset ODO, Td=450ms
MUA
KRC285SA
Korea Electronics
SOT-23
NPN transistor
Sw, 50V, 300mA, 900mW, 300MHz, B=200..700, R1=10k
MUA
SM2T6V8A
SGS-Thomson Microelectronics
DO-216AA
Transient voltage supressor
Vrwm=5V, 20A, 200W(1ms)
MUB
KRC285SB
Korea Electronics
SOT-23
NPN transistor
Sw, 50V, 300mA, 900mW, 300MHz, B=350..1200, R1=10k
MUB
KRC685T
Korea Electronics
TSV
NPN transistor
Dual, Sw, AF-mute, 50V, 300mA, 900mW, R1=10k
MUB
KRC885T
Korea Electronics
TS6
NPN transistor
Dual, Sw, 20V, 300mA, 900mW, R1=10k
MUG
SM2T18A
SGS-Thomson Microelectronics
DO-216AA
Transient voltage supressor
Vrwm=16V, 20A, 200W(1ms)
MUJ
P6SMB91
Taiwan Semiconductor Company
DO-214AA
Transient voltage supressor
Vrwm=91V, Vbr=86.5..95.5V, 4.8A, 600W(1ms)
MUJ
SM2T27A
SGS-Thomson Microelectronics
DO-216AA
Transient voltage supressor
Vrwm=24V, 20A, 200W(1ms)
MUK
SMB91
Luguang Electronic Technology
DO-214AA
Transient voltage supressor
Vbr=81.9..100V, Vrwm=73.7V, 4.58A, 600W(1ms)
MUL
XC9237D0LD0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUL
XC9237D0LD4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUL
XC9237D0LDER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUL
XC9237D0LDMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.85V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUM
SMB91C
Luguang Electronic Technology
DO-214AA
Transient voltage supressor
Vbr=81.9..100V, Vrwm=73.7V, 4.58A, 600W(1ms), Bidir.
MUM
XC9237D0MD0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUM
XC9237D0MD4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUM
XC9237D0MDER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL
MUM
XC9237D0MDMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 0.95V±2%, 600mA, 3MHz, Vin>1.8V, LSST, CL