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 'WS'

Marking
Name
Manufacturer/Case
Function
WS
2PD602S
Philips
SOT-23
NPN transistor
GP, Sw, 60V, 500mA, 250mW, B=85..170, >140MHz
WS
2SD1820-S
Panasonic
SOT-323
NPN transistor
GP, 30V, 500mA, 150mW, B=170..340, 20MHz
WS
2SD602-S
Panasonic
SC-59
NPN transistor
GP, AF, 50V, 500mA, 200mW, B=170..340, 200MHz
WS
2SK322-S
Renessas
SOT-23
FET n-type
HF, 15V, 50mA, 150mW, Idss=18..42mA, Up<3V
WS
BCR169L3
Infineon Technologies
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1=4.7k, 150MHz
WS
BD46241G
Rohm
SSOP-5
Voltage detector IC
2.4V±1%, -MR, -Reset PPO, 100ms
WS
BZT52B27
PanJIT Semiconductor
SOD-123
Zener diode
27V±2%, Izt=5mA, Zzt=80, 410mW
WS
BZT52B27S
Micro Commercial Components
SOD-323
Zener diode
26.46..27.54V, Izt=2mA, Zzt=80, 200mW
WS
BZT52C27-F
TAITRON Components
SOD-123F
Zener diode
25.1..28.9V, Izt=5mA, 410mW
WS
BZT52C27-V
Vishay Semiconductor
SOD-123
Zener diode
27V±5%, Izt=5mA, Zzt=80, 500mW
WS
BZT52C27S
PanJIT Semiconductor
SOD-323
Zener diode
27V±5%, Izt=5mA, Zzt=80, 200mW
WS
BZT52C27WS
TAITRON Components
SOD-323F
Zener diode
25.65..28.35V, Izt=5.0mA, 200mW
WS
BZT52C27WT
TAITRON Components
SOD-523
Zener diode
25.65..28.35V, Izt=5mA, Zzt=80, 200mW
WS
BZT52C27WU
TAITRON Components
SOD-723
Zener diode
25.65..28.35V, Izt=5mA, Zzt=80, 200mW
WS
BZT52C36
Diodes
SOD-123
Zener diode
36V±5%, Izt=5mA, Zzt=90, 500mW
WS
BZT52C36
Diodes
SOD-123
Zener diode
36V±5%, Izt=5mA, Zzt=90, 500mW
WS
BZT52C36S
Diodes
SOD-323
Zener diode
36V±5%, Izt=2.5mA, Zzt=90, 200mW
WS
BZT52C36S
Diodes
SOD-323
Zener diode
36V±5%, Izt=2.5mA, Zzt=90, 200mW
WS
BZX284-B3V6
Philips
SOD-110
Zener diode
6V±2%, If=250mA, 400mW
WS
BZX384C27-F
TAITRON Components
SOD-323F
Zener diode
25.1..28.9V, Izt=2.0mA, 200mW
WS
BZX384C27-V
Vishay Semiconductor
SOD-323
Zener diode
27V±5%, Izt=2mA, Zzt=25, 200mW
WS
BZX584C27
PanJIT Semiconductor
SOD-523
Zener diode
25.1..28.9V, Izt=2mA, Zzt=80, 200mW
WS
BZX784C27
PanJIT Semiconductor
SOD-723
Zener diode
25.65..28.35V, Zzt=80, Izt=5mA, 200mW
WS
BZX84B27
PanJIT Semiconductor
SOT-23
Zener diode
26.46..27.54V, Zzt=80, Izt=5mA, 410mW
WS
BZX84C27
Won-Top Electronics
SOT-23
Zener diode
25.1..28.9V, Zzt=80, Izt=5mA, 350mW
WS
BZX84C27TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 26.46..27.54V, Zzt=80, Izt=5mA, 200mW
WS
BZX84C27W
Won-Top Electronics
SOT-323
Zener diode
25.1..28.9V, Zzt=80, Izt=5mA, 200mW
WS
CZRW55C36-G
Comchip Technology
SOD-123
Zener diode
36.0..38.0V, Zzt=90, Izt=2mA, 500mW
WS
LBZT52C36T1G
Leshan Radio Company
SOD-123
Zener diode
34..38V, Izt=2mA, 500mW
WS
MEZ02-27-D3
Matsuki Electronic Company
SOD-323
Zener diode
25.65..28.35V, Izt=5mA, Zzt=80, 200mW
WS
MIC2211-1.6/3.3BML
Micrel
MLF-10
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=1.6V(150mA)/3.3V(300mA)±1%, +CE
WS
MM3Z36V
Secos
SOD-323
Zener diode
34..38V, Izt=2mA, Zzt=90, 200mW
WS
P4SMAJ78C
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=78V, 2.9A, 400W (1ms), Bidir.
WS
P4SMAJ8.5C
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=8.5V, 25.1A, 400W (1ms), Bidir.
WS
PZU13B2A/DG
Philips
SOD-323
Zener diode
13V±2%, If=200mA, 320mW, halogen-free
WS
R1210N561D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 5.6V, 180kHz
WS
R5325N026B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/2.7V±1%, 150mA, +CE, CL
WS
RN5RK521A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=5.2V±1.5%
WS
RP130K501D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, +CE, CL, 5V±1%, 150mA
WS
RP201K241B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.4V±1%, 150mA, +CE, AE(Mode)
WS
SMAJ8.5C
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=8.5V, Vbr=9.44..11.5V, 25.2A, 400W(1ms), Bidir.
WS
TV04A8V5KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=8.55V, Vbr=9.44..11.50V, Ipp=25.16A, 400W(1ms), Bidir.
WS
TZTC27WS
TAITRON Components
SOT-323
Zener diode
25.65..28.35V, Izt=5mA, Zzt=80, 200mW
WS0
BZX84-B39

SOT-23
Zener diode
39V±2.5%, Zzt=130, Izt=5mA, 250mW
WS1
BZX84-B3V0

SOT-23
Zener diode
3.0V±2.5%, Zzt=95, Izt=5mA, 250mW
WS12
WL2803E12-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.2V±2%, 500mA, +CE
WS13
WL2803E13-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.3V±2%, 500mA, +CE
WS14
WL2803E14-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.4V±2%, 500mA, +CE
WS15
WL2803E15-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.5V±2%, 500mA, +CE
WS16
WL2803E16-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.6V±2%, 500mA, +CE
WS17
WL2803E17-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.7V±2%, 500mA, +CE
WS18
WL2803E18-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.8V±2%, 500mA, +CE
WS19
WL2803E19-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 1.9V±2%, 500mA, +CE
WS2
BZX84-B3V3

SOT-23
Zener diode
3.3V±2.5%, Zzt=95, Izt=5mA, 250mW
WS2
S-13A1B33-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE, CL
WS2
S-13A1B33-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE, CL
WS2
S822TW
Vishay Semiconductor
SOT-343
NPN transistor
UHF, LN, 12V, 8mA, 30mW, B=40..150, 5.2GHz
WS20
WL2803E20-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.0V±2%, 500mA, +CE
WS21
WL2803E21-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.1V±2%, 500mA, +CE
WS22
WL2803E22-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.2V±2%, 500mA, +CE
WS23
WL2803E23-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.3V±2%, 500mA, +CE
WS24
WL2803E24-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.4V±2%, 500mA, +CE
WS25
WL2803E25-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.5V±2%, 500mA, +CE
WS26
WL2803E26-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.6V±2%, 500mA, +CE
WS27
WL2803E27-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.7V±2%, 500mA, +CE
WS28
WL2803E28-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.8V±2%, 500mA, +CE
WS29
WL2803E29-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 2.9V±2%, 500mA, +CE
WS3
BZX84-B3V6

SOT-23
Zener diode
3.6V±2.5%, Zzt=90, Izt=5mA, 250mW
WS3
S-13A1B34-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, CL
WS3
S-13A1B34-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, CL
WS30
WL2803E30-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 3.0V±2%, 500mA, +CE
WS31
WL2803E31-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 3.1V±2%, 500mA, +CE
WS32
WL2803E32-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 3.2V±2%, 500mA, +CE
WS33
WL2803E33-5
Will Semiconductor
SOT-23-5L
Linear voltage regulator IC
LDO, 3.3V±2%, 500mA, +CE
WS4
BZX84-B3V9

SOT-23
Zener diode
3.9V±2.5%, Zzt=90, Izt=5mA, 250mW
WS4
S-13A1B35-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL
WS4
S-13A1B35-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, CL
WS5
BZX84-B43

SOT-23
Zener diode
43V±2.5%, Zzt=150, Izt=5mA, 250mW
WS5
S-13A1B1C-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.25V±1%, 300mA, +CE, CL
WS5
S-13A1B1C-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.25V±1%, 300mA, +CE, CL
WS6
BZX84-B47

SOT-23
Zener diode
47V±2.5%, Zzt=170, Izt=5mA, 250mW
WS7
BZX84-B4V3

SOT-23
Zener diode
4.3V±2.5%, Zzt=90, Izt=5mA, 250mW
WS8
BZX84-B4V7

SOT-23
Zener diode
4.7V±2.5%, Zzt=80, Izt=5mA, 250mW
WS9
BZX84-B51

SOT-23
Zener diode
51V±2.5%, Zzt=100, Izt=5mA, 250mW
WSA
S-13A1B00-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, Adjustable 1.05..5.5V±15mV, 300mA, +CE, CL
WSB
S-13A1B10-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE, CL
WSB
S-13A1B10-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE, CL
WSC
S-13A1B11-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE, CL
WSC
S-13A1B11-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE, CL
WSD
S-13A1B12-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE, CL
WSD
S-13A1B12-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE, CL
WSE
BFP280TRW
Vishay Semiconductor
SOT-343
NPN transistor
VHF/UHF, LN, 15V, 10mA, 80mW, B=50..150, 5GHz
WSE
S-13A1B13-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE, CL
WSE
S-13A1B13-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE, CL
WSF
S-13A1B14-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE, CL
WSF
S-13A1B14-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE, CL
WSG
S-13A1B15-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE, CL
WSG
S-13A1B15-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE, CL
WSH
S-13A1B16-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE, CL
WSH
S-13A1B16-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE, CL
WSI
S-13A1B17-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, CL
WSI
S-13A1B17-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, CL
WSJ
S-13A1B18-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE, CL
WSJ
S-13A1B18-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE, CL
WSK
S-13A1B1J-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE, CL
WSK
S-13A1B1J-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE, CL
WSL
S-13A1B19-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE, CL
WSL
S-13A1B19-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE, CL
WSM
S-13A1B20-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE, CL
WSM
S-13A1B20-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE, CL
WSN
S-13A1B21-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE, CL
WSN
S-13A1B21-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE, CL
WSO
S-13A1B22-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE, CL
WSO
S-13A1B22-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE, CL
WSP
S-13A1B23-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE, CL
WSP
S-13A1B23-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE, CL
WSQ
S-13A1B24-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE, CL
WSQ
S-13A1B24-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE, CL
WSR
S-13A1B25-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE, CL
WSR
S-13A1B25-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE, CL
WSs
BCR169
Infineon Technologies
SOT-23
PNP transistor
Sw, 50V, 100mA, 200mW, R1=4.7k, 200MHz
WSs
BCR169F
Infineon Technologies
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1=4.7k, 150MHz
WSs
BCR169T
Infineon Technologies
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1=4.7k, 150MHz
WSs
BCR169W
Infineon Technologies
SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, R1=4.7k, 200MHz
WSS
S-13A1B26-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE, CL
WSS
S-13A1B26-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE, CL
WST
S-13A1B27-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE, CL
WST
S-13A1B27-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE, CL
WSU
S-13A1B28-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE, CL
WSU
S-13A1B28-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE, CL
WSV
S-13A1B2J-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE, CL
WSV
S-13A1B2J-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE, CL
WSW
S-13A1B29-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, CL
WSW
S-13A1B29-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, CL
WSX
S-13A1B30-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE, CL
WSX
S-13A1B30-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE, CL
WSY
S-13A1B31-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, CL
WSY
S-13A1B31-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, CL
WSZ
S-13A1B32-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, CL
WSZ
S-13A1B32-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, CL