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 'WP'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
WP
BZT52B22
PanJIT Semiconductor
SOD-123
Zener diode
22V±2%, Izt=5mA, Zzt=50, 410mW
WP
BZT52C22
Won-Top Electronics
SOD-123
Zener diode
22V±5%, Izt=5mA, Zzt=55, 410mW
WP
BZT52C22-V
Vishay Semiconductor
SOD-123
Zener diode
22V±5%, Izt=5mA, Zzt=55, 500mW
WP
BZT52C27
Diodes
SOD-123
Zener diode
27V±5%, Izt=5mA, Zzt=80, 500mW
WP
BZT52C27
Diodes
SOD-123
Zener diode
27V±5%, Izt=5mA, Zzt=80, 500mW
WP
BZT52C27-G
Taiwan Semiconductor Company
SOD-123
Zener diode
25.65..28.35V, Izt=2mA, Zzt=80, 350mW
WP
CZRW55C27-G
Comchip Technology
SOD-123
Zener diode
27.0..28.90V, Zzt=80, Izt=2mA, 500mW
WP
LBZT52C27T1G
Leshan Radio Company
SOD-123
Zener diode
25.1..28.9V, Izt=2mA, 500mW
WP
BZT52-C22S
PanJIT Semiconductor
SOD-323
Zener diode
22V±5%, Izt=5mA, Zzt=55, 200mW
WP
BZT52B22S
Micro Commercial Components
SOD-323
Zener diode
21.56..22.44V, Izt=5mA, Zzt=55, 200mW
WP
BZT52C27S
Diodes
SOD-323
Zener diode
27V±5%, Izt=2.5mA, Zzt=80, 200mW
WP
BZT52C27S
Diodes
SOD-323
Zener diode
27V±5%, Izt=2.5mA, Zzt=80, 200mW
WP
BZX384C22-V
Vishay Semiconductor
SOD-323
Zener diode
22V±5%, Izt=5mA, Zzt=20, 200mW
WP
MEZ02-22-D3
Matsuki Electronic Company
SOD-323
Zener diode
20.90..23.10V, Izt=5mA, Zzt=55, 200mW
WP
MM3Z27V
Secos
SOD-323
Zener diode
25.1..28.9V, Izt=2mA, Zzt=80, 200mW
WP
PZU13BA/DG
NXP Semiconductors
SOD-323
Zener diode
12.47..13.96V, Zzt=10(Iz=5mA), 320mW, H-free
WP
LT4ME70CA
Lite-On Semiconductor
DO-219
Transient voltage supressor
Vrwm=70V, Vbr=77.8..86.0V, Ipp=3.5A, 400W(1ms), Bidir.
WP
SMF4L70CAQ
Diodes
DO-219AA
Transient voltage supressor
Vrwm=70V, Vbr=77.8..86V, Ipp=3.5A, 400W(1ms), Bidir.
WP
BZT52C22-F
TAITRON Components
SOD-123F
Zener diode
20.8..23.3V, Izt=5mA, 410mW
WP
PMF7.5CA
StarHope
SOD-123FL
Transient voltage supressor
Vbr=8.33..9.21V, Vrwm=7.5V, Ipp=15.5A, 200W(1ms), Bidir.
WP
BZT52C22WS
TAITRON Components
SOD-323F
Zener diode
20.90..23.10V, Izt=5.0mA, 200mW
WP
BZX384C22-F
TAITRON Components
SOD-323F
Zener diode
20.8..23.3V, Izt=5.0mA, 200mW
WP
BZT52C22WT
TAITRON Components
SOD-523
Zener diode
20.90..23.10V, Izt=5mA, Zzt=55, 200mW
WP
BZX584C22
PanJIT Semiconductor
SOD-523
Zener diode
20.8..23.3V, Izt=5mA, Zzt=55, 200mW
WP
BZT52C22WU
TAITRON Components
SOD-723
Zener diode
20.90..23.10V, Izt=5mA, Zzt=55, 200mW
WP
BZX784C22
PanJIT Semiconductor
SOD-723
Zener diode
20.90..23.10V, Zzt=55, Izt=5mA, 200mW
WP
CD214A-T70CA
Bourns
DO-214AC
Transient voltage supressor
Vrwm=70V, Irsm=3.5A, 400W(1ms), Bidir.
WP
EC76SMAJ7.5CA
E-CMOS
DO-214AC
Transient voltage supressor
Vbr=8.33..9.21V, Vrwm=7.5V, Ipp=31.0A, 400W(1ms), Bidir.
WP
P4SMAJ7.5CA
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, Ipp=31.0A, 400W(1ms), Bidir.
WP
P4SMAJ70CA
Won-Top Electronics
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..89.5V, Ipp=3.5A, 400W(1ms), Bidir.
WP
P4SMAJ70CA
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..86.0V, Ipp=3.5A, 400W(1ms), Bidir.
WP
P4SMAJ70CA
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..89.5V, Ipp=3.5A, 400W(1ms), Bidir.
WP
SMAJ7.5CA
Yint Electronics
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, Ipp=31.01A, 400W(1ms), Bidir.
WP
SMAJ7.5CA
Micro Commercial Components
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, Ipp=31.01A, 400W(1ms), Bidir.
WP
SMAJ7.5CA
Socay Electronics
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, Ipp=31.01A, 400W(1ms), Bidir.
WP
SMAJ7.5CA
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, 31A, 400W(1ms), Bidir.
WP
SMAJ70CA
Leimao Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..86V, 3.5A, 400W(1ms), Bidir.
WP
SMAJ70CA
Lite-On Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=70.0V, Vbr=77.8..86.0V, Ipp=3.5A, 400W(1ms), Bidir.
WP
SMAJ70CA
Diodes
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..86V, 3.5A, 400W(1ms), Bidir.
WP
SMAJ70CA
Ruilong Yuan Electronics
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..86V, 3.5A, 400W(1ms), Bidir.
WP
SMAJ70CAG
First Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=70V, Vbr=77.8..89.5V, Ipp=3.5A, 400W(1ms), Bidir.
WP
TV04A7V5JB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=7.50V, Vbr=8.33..9.21V, Ipp=31.01A, 400W(1ms), Bidir.
WP
SMAS7.5CA
Formosa Microsemi
SMA-S
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, Ipp=31.0A, 400W(1ms), Bidir.
WP
SM4T68CA
SGS-Thomson Microelectronics
SOD-6
Transient voltage supressor
Vrwm=68V, 4.3A, 400W(1ms), Bidir.
WP
BZX284-B2V7
Philips
SOD-110
Zener diode
2.7V±2%, If=250mA, 400mW
WP
2SK322-P
Renessas
SOT-23
FET n-type
HF, 15V, 50mA, 150mW, Idss=5..15mA, Up<3V
WP
BZX84B22
PanJIT Semiconductor
SOT-23
Zener diode
21.56..22.44V, Zzt=55, Izt=5mA, 410mW
WP
BZX84C22
Won-Top Electronics
SOT-23
Zener diode
20.8..23.3V, Zzt=55, Izt=5mA, 350mW
WP
BZX84C22W
Won-Top Electronics
SOT-323
Zener diode
20.8..23.3V, Zzt=55, Izt=5mA, 200mW
WP
TZTC22WS
TAITRON Components
SOT-323
Zener diode
20.90..23.10V, Izt=5mA, Zzt=55, 200mW
WP
BCR192L3
Infineon Technologies
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/47k, 150MHz
WP
PT7M6315US48D4
Pericom Technology
SOT-143
Voltage detector IC
4.8V±1.5%, 1570ms, -Reset ODO, -MR
WP
RP130K471D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 4.7V±1%, 150mA
WP
74LVC1G14FS3
Diodes
X2-DFN0808-4
CMOS logic IC
Inverter with Schmitt-trigger input
WP
R1210N531D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM st-up, 5.3V, 180kHz
WP
RN5RK371A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM st-up, Vout=3.7V±1.5%, 500mA
WP
BD46271G
Rohm
SSOP-5
Voltage detector IC
2.7V±1%, -MR, -Reset PPO, 100ms
WP
R5325N023B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/2.8V±1%, 150mA, +CE, CL
WP
BZX84C22TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 21.56..22.44V, Zzt=55, Izt=5mA, 200mW
WP
RP201K211B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.1V±1%, 150mA, +CE, AE(Mode)
WP
HD74LV1GW53ACM
Renessas
CMPAK-6
CMOS logic IC
2-channel analog multiplexer/demultiplexer
WP-
RT9818A-23PB
Richtek Technology
SOT-23-5
Voltage detector IC
2.3V±1.5%, -Reset ODO
WP2
BFR92AW
Vishay Semiconductor
SOT-323
NPN transistor
UHF-A-Band, 20V, 25mA, 300mW, B>40, >5GHz
WP3
PMEG2005ET
Philips
SOT-23
Diode
SBR, 20V, 500mA, Vf=0.355V(500mA), 66pF
WP4
PMEG3005ET
Philips
SOT-23
Diode
SBR, 30V, 500mA, Vf=0.38V(500mA), 55pF
WP5
PMEG4005ET
Philips
SOT-23
Diode
SBR, 40V, 500mA, Vf=0.42V(500mA), 43pF
WPH
SMAJ7.5CA-H
Yint Electronics
DO-214AC
Transient voltage supressor
Vrwm=7.5V, Vbr=8.33..9.21V, Ipp=31.01A, 400W(1ms), Bidir.
WPs
BCR192
Infineon Technologies
SOT-23
PNP transistor
Sw, 50V, 100mA, 330mW, R1/R2=22k/47k, 200MHz
WPs
BCR192W
Infineon Technologies
SOT-323
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/47k, 200MHz
WPs
BCR192T
Infineon Technologies
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/47k, 150MHz
WPs
BCR192F
Infineon Technologies
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=22k/47k, 150MHz
WP00
NC7WP00K
Fairchild Semiconductor
US8
CMOS logic IC
Dual 2-input NAND gate
WP02
NC7WP02K
Fairchild Semiconductor
US8
CMOS logic IC
Dual 2-input NOR gate
WP02
NC7WP08K
Fairchild Semiconductor
US8
CMOS logic IC
Dual 2-input AND gate
WP25
NC7WP125K
Fairchild Semiconductor
US8
CMOS logic IC
Dual bus buffer with 3-state output
WP32
NC7WP32K
Fairchild Semiconductor
US8
CMOS logic IC
Dual 2-input OR gate
WPB306
TC7WPB306FK
Toshiba
SOT-765
CMOS logic IC
2-bit dual supply bus switch
WPB307
TC7WPB307FK
Toshiba
SOT-765
CMOS logic IC
2-bit dual supply bus switch
WPB936
TC7WPB9306FK
Toshiba
SOT-765
CMOS logic IC
2-bit dual supply bus switch
WPB937
TC7WPB9307FK
Toshiba
SOT-765
CMOS logic IC
2-bit dual supply bus switch

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