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 '4T'

Marking
Name
Manufacturer/Case
Function
4T
2SK1216
Panasonic
SOT-23
FET n-type
Video-Camera, 10V, 50mA, Idss>9.2mA
4T
IMP162TEUS
IMP
SOT-143
Voltage detector IC
3.08V±1.5%, +Reset ODO, -MR
4T
MMBD301
ON Semiconductor
SOT-23
Diode
Schottky, UHF/VHF-Det, 30V, 200mW, <1.5pF
4T
MMBD330
ON Semiconductor
SOT-323
Diode
Schottky, UHF/VHF-Det, 70V, 10mA, Vf<0.6V(10mA), <1pF
4T
MMDL301
ON Semiconductor
SOD-323
Diode
UHF/VHF Det, Schottky Barrier, 30V, 200mW, <0.9pF
4T
R3117K481C
Ricoh
DFN1010-4
Voltage detector IC
4.8V±1%, -Reset PPO, Sense
4T
R3131N30HA8
Ricoh
SOT-23
Voltage detector IC
3V±1.5%, +Reset PPO, 400ms
4T
RN5RF14BA
Ricoh
SOT-23-5
Linear voltage regulator IC
LRip, +CE, 1.4V±2%, 1A*
4T
RP101K231D
Ricoh
DFN1612-4
Linear voltage regulator IC
LDO, LN, 2.3V±0.8%, 300mA, +CE, CL
4T
RP173K501B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 5.0V±1%, 150mA, +CE
4T
RQ5RW46CA
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 4.6V±2%, 150mA
4T
XC6127N43ENR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.3V±0.8%, -Reset ODO, -MR, Rt=800ms
4T
XC6221D3217R
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 3.2V±1%, 200mA, +CE, CL, PDR
4T
XC6221D321NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.2V±1%, 200mA, +CE, CL, PDR
4T
XC6223E3419R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, ICP
4T0
XC6105F531MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.1V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T0
XC9235E40C0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM, st-dwn, 4.0V±2%, 600mA, 1.2MHz, Vin>1.8V, LSST, CL
4T0
XC9235E40C4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM, st-dwn, 4.0V±2%, 600mA, 1.2MHz, Vin>1.8V, LSST, CL
4T0
XC9235E40CER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM, st-dwn, 4.0V±2%, 600mA, 1.2MHz, Vin>1.8V, LSST, CL
4T0
XC9235E40CMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM, st-dwn, 4.0V±2%, 600mA, 1.2MHz, Vin>1.8V, LSST, CL
4T1
STZ8220A

SOD-323
Zener diode
20.8..21.86V, Izt=5mA, Zzt=8, 300mW
4T1
XC6105F532MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.2V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T2
XC6105F533MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.3V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T3
XC6105F534MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.4V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T4
XC6105F535MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.5V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T5
XC6105F536MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.6V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T6
XC6105F537MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.7V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T7
XC6105F538MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.8V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T8
XC6105F539MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.9V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4T9
XC6105F540MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.0V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TA
XC6105F541MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.1V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TB
XC6105F542MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.2V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TC
XC6105F543MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.3V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TD
XC6105F544MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.4V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TE
XC6105F545MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TF
XC6105F516MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.6V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TF
XC6105F546MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TH
XC6105F517MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.7V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TH
XC6105F547MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.7V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TK
XC6105F518MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.8V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TK
XC6105F548MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.8V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TL
XC6105F519MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.9V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TL
XC6105F549MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.9V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TM
XC6105F520MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.0V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TM
XC6105F550MR
Torex Semiconductor
SOT-25
Voltage detector IC
5.0V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TN
XC6105F521MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.1V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TP
XC6105F522MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.2V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TR
XC6105F523MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.3V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TS
XC6105F524MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.4V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TT
XC6105F525MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.5V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TU
XC6105F526MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.6V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TV
XC6105F527MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.7V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TX
XC6105F528MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.8V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TY
XC6105F529MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.9V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms
4TZ
XC6105F530MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.0V±2%, Hst, +Rst PPO, -Rst ODO, Wt=400ms, Rt=400ms