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 'UR'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
UR
LT4ME17CA
Lite-On Semiconductor
DO-219
Transient voltage supressor
Vrwm=17V, Vbr=18.9..20.9V, Ipp=14.5A, 400W(1ms), Bidir.
UR
SMF4L17CAQ
Diodes
DO-219AA
Transient voltage supressor
Vrwm=17V, Vbr=18.9..20.9V, Ipp=14.5A, 400W(1ms), Bidir.
UR
BZX84J-C6V2
NXP Semiconductors
SOD-323FL
Zener diode
6.2V±5%, If=250mA, 550mW
UR
CZRER18VB-H
Comchip Technology
SOD-723F
Zener diode
17.55 18.45V, Zzt=42, Izt=5mA, 150mW
UR
FUF2G
Fagor Electronica
DO-214AA
Diode
U-fast recov. rectif, 400V, 2A, Vf<1.3V(2A), 50ns
UR
SMBJ51CA
Fagor Electronica
DO-214AA
Transient voltage supressor
Vrm=51V, Vbr=56.7..62.7V, Ipp=7.3A, 600W, Bidir.
UR
CD214A-T17CA
Bourns
DO-214AC
Transient voltage supressor
Vrwm=17V, Irsm=14.5A, 400W(1ms), Bidir.
UR
P4SMAJ17CA
Won-Top Electronics
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..21.7V, Ipp=14.5A, 400W(1ms), Bidir.
UR
P4SMAJ17CA
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..20.9V, Ipp=14.5A, 400W(1ms), Bidir.
UR
P4SMAJ17CA
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..21.7V, Ipp=14.5A, 400W(1ms), Bidir.
UR
SMA6J17CA
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vbr=18.9..20.9V, Vrwm=17V, Ipp=21.7A, 600W(1ms), Bidir.
UR
SMAJ17CA
Ruilong Yuan Electronics
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..20.9V, 14.5A, 400W(1ms), Bidir.
UR
SMAJ17CA
Leimao Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..20.9V, 14.5A, 400W(1ms), Bidir.
UR
SMAJ17CA
Lite-On Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=17.0V, Vbr=18.9..20.9V, Ipp=14.5A, 400W(1ms), Bidir.
UR
SMAJ17CA
Diodes
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..20.9V, 14.5A, 400W(1ms), Bidir.
UR
SMAJ17CAG
First Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=17V, Vbr=18.9..21.7V, Ipp=14.5A, 400W(1ms), Bidir.
UR
SM4T30CA
SGS-Thomson Microelectronics
SOD-6
Transient voltage supressor
Vrwm=30V, 9.6A, 400W(1ms), Bidir.
UR
CZRQR18VB
Comchip Technology
0402
Zener diode
17.55..18.45V, Izt=5mA, Zzt=42, 125mW
UR
CZRF18VB
Comchip Technology
1005
Zener diode
17.55..18.45V, Izt=5mA, Zzt=42, 200mW
UR
CZRFR18VB-HF
Comchip Technology
1005
Zener diode
17.55..18.45V, Zzt=42, Izt=5mA, 200mW
UR
CZRU18VB
Comchip Technology
0603
Zener diode
17.55..18.45V, Izt=5mA, Zzt=42, 150mW
UR
CZRUR18VB-HF
Comchip Technology
0603
Zener diode
17.55..18.45V, Zzt=42, Izt=5mA, 150mW
UR
SMD30KPA51A
MDE Semiconductor
MDE-1-1
Transient voltage supressor
Vrwm=51.0V, Vbr=57.0V, Vcl=86.4V, Ipp=350.7A, 30000W(1ms)
UR
SMD15KPA54A
MDE Semiconductor
MDE-1-2
Transient voltage supressor
Vrwm=54.0V, Vbr=60.30V, Vcl=87.7V, Ipp=172.2A, 15000W(1ms)
UR
3SK207
Toshiba
SOT-143
MOSFET n-type
Dual gate, UHF, 13.5V, Idss>0V
UR
PT7M6314US36D4
Pericom Technology
SOT-143
Voltage detector IC
3.6V±1.5%, 1570ms, -Reset PPO, -MR
UR
IXD5127C40JNR
IXYS
SSOT-24
Voltage detector IC
4.0V±0.8%, +Reset PPO, -MR, 400ms Rt delay
UR
XC6127C40JNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.0V±0.8%, +Reset PPO, -MR, Rdt=400ms
UR
XC6223E32BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.25V±1%, 300mA, +CE, ICP
UR
XC6237B381NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.8V±1%, 150mA, +CE
UR
RP130K491B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, 4.9V±1%, 150mA
UR
XC6237B3819R-G
Torex Semiconductor
USPQ-4B05
Linear voltage regulator IC
LDO, 3.8V±1%, 150mA, +CE
UR
AP7340D-135FS4-7
Diodes
X2-DFN1010-4
Linear voltage regulator IC
LDO, 1.35V±1%, 150mA, +CE, CL
UR
MCP1824T-3002E/OT
Microchip Technology
SOT-23-5
Linear voltage regulator IC
LDO, 3.0V±2%, 300mA, +CE
UR
74LVC1G17W5
Diodes
SOT-25
CMOS logic IC
Buffer with Schmitt-trigger input
UR
74LVC1G17SE
Diodes
SOT-353
CMOS logic IC
Buffer with Schmitt-trigger input
UR
BD45412G
Rohm
SSOP-5
Voltage detector IC
4.1V±1%, -MR, -Reset ODO, 200ms
UR
74LVC1G17Z
Diodes
SOT-553
CMOS logic IC
Buffer with Schmitt-trigger input
UR
R5323N050B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.1V/2.1V±1%, 150mA, +CE, CL
UR
XC6604B171MR-G
Torex Semiconductor
SOT-26W
Linear voltage regulator IC
LDO, 1.7V±20mV, 1A, +CE
UR
RP152L016C
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/3.0V±1%, 150mA, +CE, CL
UR
74LVC1G17FW4
Diodes
X2-DFN1010-6
CMOS logic IC
Buffer with Schmitt-trigger input
UR
74LVC1G17FZ4
Diodes
X2-DFN1410-6
CMOS logic IC
Buffer with Schmitt-trigger input
UR
SN74AUC2G00DCU
Texas Instruments
VSSOP-8
CMOS logic IC
Dual 2-input NAND gate
UR
SN74AUC2G02DCU
Texas Instruments
VSSOP-8
CMOS logic IC
Dual 2-input NOR gate
UR
SN74AUC2G66DCU
Texas Instruments
VSSOP-8
CMOS logic IC
2-channel analog switch
Ur
BD45E315G-M
Rohm
SSOP-5
Voltage detector IC
3.1V±1%, -MR, -Reset ODO, Rdt=50ms
UR-
BZB84-C9V1
NXP Semiconductors
SOT-23
Zener diode
Dual, 9.2V±5%, If=200mA, 300mW
UR-
PZU20DB2/DG
NXP Semiconductors
SOT-353
Zener diode
Dual, 19.52..20.39V, Izt=5mA, Zzt=20, 250mW , H-free
URA
S-1731A1212-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/1.2V±1.0%, 300mA, +CE, CL, PDR
URB
S-1731A2815-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/1.5V±1.0%, 300mA, +CE, CL, PDR
URC
S-1731A2818-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/1.8V±1.0%, 300mA, +CE, CL, PDR
URD
S-1731A2828-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/2.8V±1.0%, 300mA, +CE, CL, PDR
URE
S-1731A2830-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.0V/3.0V±1.0%, 300mA, +CE, CL, PDR
URF
S-1731A2833-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/3.3V±1.0%, 300mA, +CE, CL, PDR
URG
S-1731A3018-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.0V/1.8V±1.0%, 300mA, +CE, CL, PDR
URH
S-1731A3033-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.0V/3.3V±1.0%, 300mA, +CE, CL, PDR
URI
S-1731A3333-A6T1y
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.3V/3.3V±1.0%, 300mA, +CE, PDR
URN
SN74AUC2G79YZP
Texas Instruments
BGA-8
CMOS logic IC
Dual positive-edge triggered D-type flip-flop
URp
BZB84-C9V1
NXP Semiconductors
SOT-23
Zener diode
Dual, 9.2V±5%, If=200mA, 300mW
URp
PZU20DB2/DG
NXP Semiconductors
SOT-353
Zener diode
Dual, 19.52..20.39V, Izt=5mA, Zzt=20, 250mW , H-free
URQ
74LVC1G1QW5
Diodes
SOT-25
CMOS logic IC
Buffer with Schmitt-trigger input
URQ
74LVC1G17QSE
Diodes
SOT-353
CMOS logic IC
Buffer with Schmitt-trigger input
URt
BZB84-C9V1
NXP Semiconductors
SOT-23
Zener diode
Dual, 9.2V±5%, If=200mA, 300mW
URt
PZU20DB2/DG
NXP Semiconductors
SOT-353
Zener diode
Dual, 19.52..20.39V, Izt=5mA, Zzt=20, 250mW , H-free
URW
BZB84-C9V1
NXP Semiconductors
SOT-23
Zener diode
Dual, 9.2V±5%, If=200mA, 300mW
URW
PZU20DB2/DG
NXP Semiconductors
SOT-353
Zener diode
Dual, 19.52..20.39V, Izt=5mA, Zzt=20, 250mW , H-free

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