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 'UM'

Marking
Name
Manufacturer/Case
Function
UM
2SC3618-M
NEC Electronics
SOT-89
NPN transistor
AF-Amp, Sw, 25V, 1A, 2W, 250MHz, B=900..1600
UM
74LVC1G06FZ4
Diodes
DFN1410
Capacitance diode
Inverter (ODO)
UM
74LVC1G06SE
Diodes
SOT-353
Capacitance diode
Inverter (ODO)
UM
74LVC1G06W5
Diodes
SOT-25
Capacitance diode
Inverter (ODO)
UM
BD45452G
Rohm
SSOP-5
Voltage detector IC
4.5V±1%, -MR, -Reset ODO, 200ms
Um
BD45E285G-M
Rohm
SSOP-5
Voltage detector IC
2.8V±1%, -MR, -Reset ODO, Td=50ms
UM
BZX84J-C5V6
NXP Semiconductors
SOD-323FL
Zener diode
5.6V±5%, If=250mA, 550mW
UM
CD214A-T15CA
Bourns
DO-214AC
Transient voltage supressor
Vrwm=15V, Irsm=16.4A, 400W(1ms), Bidir.
UM
CZRER12VB
Comchip Technology
SOD-723F
Zener diode
11.70 12.30V, Zzt=22, Izt=5mA, 150mW
UM
CZRF12VB
Comchip Technology
1005
Zener diode
11.70..12.30V, Izt=5mA, Zzt=22, 200mW
UM
CZRFR12VB-HF
Comchip Technology
1005
Zener diode
11.70..12.30V, Zzt=22, Izt=5mA, 200mW
UM
CZRQR12VB
Comchip Technology
0402
Zener diode
11.70..12.30V, Izt=5mA, Zzt=22, 125mW
UM
CZRU12VB
Comchip Technology
0603
Zener diode
11.70..12.30V, Izt=5mA, Zzt=22, 150mW
UM
CZRUR12VB-HF
Comchip Technology
0603
Zener diode
11.70..12.30V, Zzt=22, Izt=5mA, 150mW
UM
GDZ27B-V-G
Vishay Semiconductor
SOD-323
Zener diode
26.19..27.53V, Izt=5mA, Zzt=150, 200mW
UM
MCP1824T-1202E/OT
Microchip Technology
SOT-23-5
Linear voltage regulator IC
LDO, 1.2V±2%, 300mA, +CE
UM
P4SMAJ15CA
PanJIT Semiconductor
DO-214AB
Transient voltage supressor
Vrwm=15V, 16.4A, 400W (1ms), Bidir.
UM
P4SMAJ440CA
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=440V, 0.6A, 400W(1ms), Bidir.
UM
PT7M6314US35D3

SOT-143
Voltage detector IC
3.5V±1.5%, 200ms, -Restet PPO, -MR
UM
R5323N047B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.6V/2.8V±1%, 150mA, +CE, CL
UM
RP130K451B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, 4.5V±1%, 150mA
UM
RP152L012C
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/2.6V±1%, 150mA, +CE, CL
UM
SM4T24CA
SGS-Thomson Microelectronics
SOD-6
Transient voltage supressor
Vrwm=24V, 12A, 400W(1ms), Bidir.
UM
SMA6J15CA
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vbr=16.7..18.5V, Vrwm=15V, Ipp=24.6A, 600W(1ms), Bidir.
UM
SMAJ15CA
Diodes
DO-214AC
Transient voltage supressor
Vrwm=15V, Vbr=16.7..18.5V, 16.4A, 400W(1ms), Bidir.
UM
SMAJ440CA
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vrwm=440V, Vbr=492..543V, 0.6A, 400W(1ms), Bidir.
UM
SN74AUC1G125DCK
Texas Instruments
SC-70-5
Capacitance diode
Bus buffer gate with 3-state output
UM
SN74AUC1G125YEA
Texas Instruments
BGA-5
Capacitance diode
Bus buffer gate with 3-state output
UM
SN74AUC2G125YZP
Texas Instruments
BGA-8
Capacitance diode
Dual bus buffer with 3-state output
UM
US1M
Vishay Semiconductor
DO-214AC
Diode
Rectifier, 1000V, 1A, Vf<1.7V(1A) 75ns, 15pF
UM
XC6127C34JNR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.4V±0.8%, +Reset PPO, -MR, Rt=400ms
UM
XC6215B502NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 5.0V±2%, 200mA, +CE
UM
XC6223E29BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.95V±1%, 300mA, +CE, ICP
UM
XC6604B141MR-G
Torex Semiconductor
SOT-26W
Linear voltage regulator IC
LDO, 1.4V±20mV, 1A, +CE
UM-
BZB84-C6V8

SOT-23
Zener diode
Dual, 6.8V±5%, If=200mA, 300mW
UM-
PZU15DB2/DG

SOT-353
Zener diode
Dual, 14.34..14.98V, Izt=5mA, Zzt=15, 250mW, Halogen free
UMp
BZB84-C6V8

SOT-23
Zener diode
Dual, 6.8V±5%, If=200mA, 300mW
UMp
PZU15DB2/DG

SOT-353
Zener diode
Dual, 14.34..14.98V, Izt=5mA, Zzt=15, 250mW, Halogen free
UMt
BZB84-C6V8
Philips
SOT-23
Zener diode
Dual, 6.8V±5%, If=200mA, 300mW
UMt
PZU15DB2/DG
NXP Malaysia
SOT-353
Zener diode
Dual, 14.34..14.98V, Izt=5mA, Zzt=15, 250mW, Halogen free
UMW
BZB84-C6V8

SOT-23
Zener diode
Dual, 6.8V±5%, If=200mA, 300mW
UMW
PZU15DB2/DG

SOT-353
Zener diode
Dual, 14.34..14.98V, Izt=5mA, Zzt=15, 250mW, Halogen free