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 'WT'

Marking
Name
Manufacturer/Case
Function
WT
2SA1020PT-Y
Chenmko Enterprise
SOT-23
PNP transistor
AF, Sw, 50V, 500mA, B=120..240, 120MHz
WT
2SC4694
Sanyo Electric
MCP
NPN transistor
AF, Mute, 50V, 500mA, 150mW, B=300..1200, 250MHz
WT
2SC4695
Sanyo Electric
CP
NPN transistor
AF, Mute, 50V, 500mA, 250mW, B=300..1200, 250MHz
WT
2SK322-T
Renessas
SOT-23
FET n-type
HF, 15V, 50mA, 150mW, Idss=36..50mA, Up<3V
WT
BCR166L3
Infineon Technologies
TSLP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/47k, 150MHz
WT
BD46231G
Rohm
SSOP-5
Voltage detector IC
2.3V±1%, -MR, -Reset PPO, 100ms
WT
BZT52B30
PanJIT Semiconductor
SOD-123
Zener diode
30V±2%, Izt=5mA, Zzt=80, 410mW
WT
BZT52B30S
Micro Commercial Components
SOD-323
Zener diode
29.4..30.6V, Izt=2mA, Zzt=80, 200mW
WT
BZT52C30-F
TAITRON Components
SOD-123F
Zener diode
28..32V, Izt=5mA, 410mW
WT
BZT52C30-V
Vishay Semiconductor
SOD-123
Zener diode
30V±5%, Izt=5mA, Zzt=80, 500mW
WT
BZT52C30S
PanJIT Semiconductor
SOD-323
Zener diode
30V±5%, Izt=5mA, Zzt=80, 200mW
WT
BZT52C30WS
TAITRON Components
SOD-323F
Zener diode
28.50..31.50V, Izt=5.0mA, 200mW
WT
BZT52C30WT
TAITRON Components
SOD-523
Zener diode
28.50..31.50V, Izt=5mA, Zzt=80, 200mW
WT
BZT52C30WU
TAITRON Components
SOD-723
Zener diode
28.50..31.50V, Izt=5mA, Zzt=80, 200mW
WT
BZT52C39
Diodes
SOD-123
Zener diode
39V±5%, Izt=5mA, Zzt=130, 500mW
WT
BZT52C39
Diodes
SOD-123
Zener diode
39V±5%, Izt=5mA, Zzt=130, 500mW
WT
BZT52C39S
Diodes
SOD-323
Zener diode
39V±5%, Izt=2.5mA, Zzt=130, 200mW
WT
BZT52C39S
Diodes
SOD-323
Zener diode
39V±5%, Izt=2.5mA, Zzt=130, 200mW
WT
BZX284-B3V9
Philips
SOD-110
Zener diode
3.9V±2%, If=250mA, 400mW
WT
BZX384C30-F
TAITRON Components
SOD-323F
Zener diode
28.0..32.0V, Izt=2.0mA, 200mW
WT
BZX384C30-V
Vishay Semiconductor
SOD-323
Zener diode
30V±5%, Izt=2mA, Zzt=30, 200mW
WT
BZX584C30
PanJIT Semiconductor
SOD-523
Zener diode
28..32V, Izt=2mA, Zzt=80, 200mW
WT
BZX784C30
PanJIT Semiconductor
SOD-723
Zener diode
28.50..31.50V, Zzt=80, Izt=5mA, 200mW
WT
BZX84B30
PanJIT Semiconductor
SOT-23
Zener diode
29.40..30.60V, Zzt=80, Izt=5mA, 410mW
WT
BZX84C30
Won-Top Electronics
SOT-23
Zener diode
28..32V, Zzt=80, Izt=5mA, 350mW
WT
BZX84C30TW
PanJIT Semiconductor
SOT-363
Zener diode
Triple, 29.40..30.60V, Zzt=80, Izt=5mA, 200mW
WT
BZX84C30W
Won-Top Electronics
SOT-323
Zener diode
28..32V, Zzt=80, Izt=5mA, 200mW
WT
CD214A-T78CA
Bourns
DO-214AC
Transient voltage supressor
Vrwm=78V, Irsm=3.2A, 400W(1ms), Bidir.
WT
CZRW55C39-G
Comchip Technology
SOD-123
Zener diode
39.0..41.0V, Zzt=130, Izt=2mA, 500mW
WT
HD74LV1GW58ACM
Renessas
CMPAK-6
Capacitance diode
Configurable multiple-function gate
WT
LBZT52C39T1G
Leshan Radio Company
SOD-123
Zener diode
37..41V, Izt=2mA, 500mW
WT
MEZ02-30-D3
Matsuki Electronic Company
SOD-323
Zener diode
28.50..31.50V, Izt=5mA, Zzt=80, 200mW
WT
MM3Z39V
Secos
SOD-323
Zener diode
37..41V, Izt=2mA, Zzt=130, 200mW
WT
P4SMA180C
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=171..189V, Vrwm=154V, 1.7A, 400W(1ms), Bidir.
WT
P4SMAJ78CA
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=78V, 2.2A, 400W (1ms), Bidir.
WT
P4SMAJ8.5CA
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=8.5V, 27.7A, 400W (1ms), Bidir.
WT
PMF8.5CA
StarHope
SOD-123FL
Transient voltage supressor
Vbr=9.44..10.4V, Vrwm=8.5V, Ipp=13.9A, 200W(1ms), Bidir.
WT
PZU13B3A/DG
Philips
SOD-323
Zener diode
13V±2%, If=200mA, 320mW, halogen-free
WT
R1210N571D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 5.7V, 180kHz
WT
R5325N027B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.9V/1.8V±1%, 150mA, +CE, CL
WT
RN5RK401A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=4.0V±1.5%
WT
RP201K251B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.5V±1%, 150mA, +CE, AE(Mode)
WT
SMAJ78CA
Diodes
DO-214AC
Transient voltage supressor
Vrwm=78V, Vbr=86.7..95.8V, 3.2A, 400W(1ms), Bidir.
WT
SMAJ8.5CA
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=8.5V, Vbr=9.44..10.4V, 27.8A, 400W(1ms), Bidir.
WT
TV04A8V5JB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=8.55V, Vbr=9.44..10.40V, Ipp=27.78A, 400W(1ms), Bidir.
WT
TZTC30WS
TAITRON Components
SOT-323
Zener diode
28.50..31.50V, Izt=5mA, Zzt=80, 200mW
WT1
BZX84-B9V1

SOT-23
Zener diode
9.1V±2.5%, Zzt=15, Izt=5mA, 250mW
WT2
BZX84-C27

SOT-23
Zener diode
27V±5%, Zzt=80, Izt=5mA, 250mW
WT2
S-13A1C33-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE, PDR
WT2
S-13A1C33-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE, PDR
WT3
BZX84-C2V4

SOT-23
Zener diode
2.4V±5%, Zzt=100, Izt=5mA, 250mW
WT3
S-13A1C34-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, PDR
WT3
S-13A1C34-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, PDR
WT4
BZX84-C2V7

SOT-23
Zener diode
2.7V±5%, Zzt=100, Izt=5mA, 250mW
WT4
S-13A1C35-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, PDR
WT4
S-13A1C35-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE, PDR
WT5
BZX84-C30

SOT-23
Zener diode
30V±5%, Zzt=80, Izt=5mA, 250mW
WT5
S-13A1C1C-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.25V±1%, 300mA, +CE, PDR
WT5
S-13A1C1C-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.25V±1%, 300mA, +CE, PDR
WT6
BZX84-C33

SOT-23
Zener diode
33V±5%, Zzt=80, Izt=5mA, 250mW
WT7
BZX84-C36

SOT-23
Zener diode
36V±5%, Zzt=90, Izt=5mA, 250mW
WT8
BZX84-C39

SOT-23
Zener diode
39V±5%, Zzt=130, Izt=5mA, 250mW
WT9
BZX84-C3V0

SOT-23
Zener diode
3.0V±5%, Zzt=95, Izt=5mA, 250mW
WTA
S-13A1C00-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, Adjustable 1.05..5.5V±15mV, 300mA, +CE, PDR
WTB
S-13A1C10-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE, PDR
WTB
S-13A1C10-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE, PDR
WTC
S-13A1C11-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE, PDR
WTC
S-13A1C11-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE, PDR
WTD
S-13A1C12-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE, PDR
WTD
S-13A1C12-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE, PDR
WTE
S-13A1C13-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE, PDR
WTE
S-13A1C13-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE, PDR
WTF
S-13A1C14-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE, PDR
WTF
S-13A1C14-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE, PDR
WTG
S-13A1C15-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE, PDR
WTG
S-13A1C15-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE, PDR
WTH
S-13A1C16-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE, PDR
WTH
S-13A1C16-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE, PDR
WTI
S-13A1C17-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, PDR
WTI
S-13A1C17-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE, PDR
WTJ
S-13A1C18-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE, PDR
WTJ
S-13A1C18-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE, PDR
WTK
S-13A1C1J-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE, PDR
WTK
S-13A1C1J-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE, PDR
WTL
S-13A1C19-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE, PDR
WTL
S-13A1C19-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE, PDR
WTM
S-13A1C20-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE, PDR
WTM
S-13A1C20-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE, PDR
WTN
S-13A1C21-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE, PDR
WTN
S-13A1C21-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE, PDR
WTO
S-13A1C22-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE, PDR
WTO
S-13A1C22-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE, PDR
WTP
S-13A1C23-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE, PDR
WTP
S-13A1C23-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE, PDR
WTQ
S-13A1C24-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE, PDR
WTQ
S-13A1C24-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE, PDR
WTR
S-13A1C25-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE, PDR
WTR
S-13A1C25-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE, PDR
WTs
BCR166
Infineon Technologies
SOT-23
PNP transistor
Sw, 50V, 100mA, 200mW, R1/R2=4.7k/47k, 160MHz
WTs
BCR166F
Infineon Technologies
TSFP-3
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/47k, 150MHz
WTs
BCR166T
Infineon Technologies
SOT-416
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/47k, 150MHz
WTs
BCR166W
Infineon Technologies
SOT-323
PNP transistor
Sw, 50V, 100mA, 250mW, R1/R2=4.7k/47k, 160MHz
WTS
S-13A1C26-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE, PDR
WTS
S-13A1C26-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE, PDR
WTT
S-13A1C27-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE, PDR
WTT
S-13A1C27-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE, PDR
WTU
S-13A1C28-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE, PDR
WTU
S-13A1C28-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE, PDR
WTV
S-13A1C2J-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE, PDR
WTV
S-13A1C2J-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE, PDR
WTW
S-13A1C29-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, PDR
WTW
S-13A1C29-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, PDR
WTX
S-13A1C30-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE, PDR
WTX
S-13A1C30-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE, PDR
WTY
S-13A1C31-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, PDR
WTY
S-13A1C31-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, PDR
WTZ
S-13A1C32-A6T1U3
Seiko Instruments
HSNT-6A
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, PDR
WTZ
S-13A1C32-U5T1U3
Seiko Instruments
SOT-89-5
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, PDR