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 '3X'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
3X
UNRF1A6
Panasonic
ML3
PNP transistor
Sw, 50V, 80mA, 100mW, 80MHz, R1=4k7
3X
UMZ6.8K
Rohm
SOT-343
Zener diode
Dual, 6.65..6.93V, Izt=5mA, 200mW
3X
IXD5126N23ANR-G
IXYS
SSOT-24
Voltage detector IC
2.3V±0.8%, -Reset ODO
3X
IXD5127N49DNR
IXYS
SSOT-24
Voltage detector IC
4.9V±0.8%, -Reset ODO, -MR, 400ms Rt delay
3X
XC6126N23ANR-G
Torex Semiconductor
SSOT-24
Voltage detector IC
2.3V±0.8%, -Reset ODO
3X
XC6127N49DNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.9V±0.8%, -Reset ODO, -MR, Rdt=400ms
3X
XC6129C49DNR-G
Torex Semiconductor
SSOT-24
Voltage detector IC
4.9V±0.8%, -Reset PPO, Det. Delay, Undef. Protect
3X
XC6129N49DNR-G
Torex Semiconductor
SSOT-24
Voltage detector IC
4.9V±0.8%, -Reset ODO, Det. Delay, Undef. Protect
3X
XC6217D282NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.8V±2%, 200mA, +CE, CL
3X
R3117K281C
Ricoh
DFN1010-4
Voltage detector IC
2.8V±1%, -Reset PPO, Sense
3X
RP112K301D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 3.0V±1%, 150mA, +CE, CL
3X
RP173K301B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 3.0V±1%, 150mA, +CE
3X
XC6217D2827R-G
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 2.8V±2%, 200mA, +CE, CL
3X
XC6223D3719R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.7V±1%, 300mA, +CE, CL, PDR
3X
XC6129C49D9R-G
Torex Semiconductor
USPQ-4B05
Voltage detector IC
4.9V±0.8%, -Reset PPO, Det. Delay, Undef. Protect
3X
XC6129N49D9R-G
Torex Semiconductor
USPQ-4B05
Voltage detector IC
4.9V±0.8%, -Reset ODO, Det. Delay, Undef. Protect
3X
XC6229H4011R-G
Torex Semiconductor
BGA-4
Linear voltage regulator IC
LDO, 4.0V±1%, 300mA, +CE, ICP
3X
R1210N431C
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM st-up, 4.2V, 100kHz
3X
R5105N361C
Ricoh
SOT-23-6
Voltage detector IC
3.6V±1%, -Reset PPO
3X
ADP150ACBZ-2.75R7
Analog Devices
CB-4-3
Linear voltage regulator IC
LDO, 2.75V±1%, 150mA, +CE
3X0
015A3.0X
Toshiba
1-1F1A
Zener diode
2.80..3.05V, Iz=5mA, Zz=120, 200mW
3X0
015AZ3.0X
Toshiba
1-1G1A
Zener diode
2.80..3.05V, Iz=5mA, Zz=120, 200mW
3X0
XC6221B311GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 3.1V±1%, 200mA, +CE, CL
3X0
XC6221B311MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 3.1V±1%, 200mA, +CE, CL
3X3
015A3.3X
Toshiba
1-1F1A
Zener diode
3.10..3.35V, Iz=5mA, Zz=130, 200mW
3X3
015AZ3.3X
Toshiba
1-1G1A
Zener diode
3.10..3.35V, Iz=5mA, Zz=130, 200mW
3X6
015A3.6X
Toshiba
1-1F1A
Zener diode
3.40..3.65V, Iz=5mA, Zz=130, 200mW
3X6
015AZ3.6X
Toshiba
1-1G1A
Zener diode
3.40..3.65V, Iz=5mA, Zz=130, 200mW
3X7
XC6221B081GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 0.8V±20mV, 200mA, +CE, CL
3X7
XC6221B081MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 0.8V±20mV, 200mA, +CE, CL
3X8
XC6221B091GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 0.9V±20mV, 200mA, +CE, CL
3X8
XC6221B091MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 0.9V±20mV, 200mA, +CE, CL
3X9
015A3.9X
Toshiba
1-1F1A
Zener diode
3.70..3.97V, Iz=5mA, Zz=130, 200mW
3X9
015AZ3.9X
Toshiba
1-1G1A
Zener diode
3.70..3.97V, Iz=5mA, Zz=130, 200mW
3X9
XC6221B101GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.0V±20mV, 200mA, +CE, CL
3X9
XC6221B101MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.0V±20mV, 200mA, +CE, CL
3XA
XC6221B111GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.1V±20mV, 200mA, +CE, CL
3XA
XC6221B111MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.1V±20mV, 200mA, +CE, CL
3XB
XC6221B121GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.2V±20mV, 200mA, +CE, CL
3XB
XC6221B121MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.2V±20mV, 200mA, +CE, CL
3XC
XC6221B131GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.3V±20mV, 200mA, +CE, CL
3XC
XC6221B131MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.3V±20mV, 200mA, +CE, CL
3XD
XC6221B141GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.4V±20mV, 200mA, +CE, CL
3XD
XC6221B141MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.4V±20mV, 200mA, +CE, CL
3XE
XC6221B151GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.5V±20mV, 200mA, +CE, CL
3XE
XC6221B151MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.5V±20mV, 200mA, +CE, CL
3XF
XC6221B161GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.6V±20mV, 200mA, +CE, CL
3XF
XC6221B161MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.6V±20mV, 200mA, +CE, CL
3XH
XC6221B171GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.7V±20mV, 200mA, +CE, CL
3XH
XC6221B171MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.7V±20mV, 200mA, +CE, CL
3XK
XC6221B181GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.8V±20mV, 200mA, +CE, CL
3XK
XC6221B181MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.8V±20mV, 200mA, +CE, CL
3XL
XC6221B191GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 1.9V±20mV, 200mA, +CE, CL
3XL
XC6221B191MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.9V±20mV, 200mA, +CE, CL
3XM
XC6221B201GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.0V±1%, 200mA, +CE, CL
3XM
XC6221B201MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.0V±1%, 200mA, +CE, CL
3XN
XC6221B211GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.1V±1%, 200mA, +CE, CL
3XN
XC6221B211MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.1V±1%, 200mA, +CE, CL
3XP
XC6221B221GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.2V±1%, 200mA, +CE, CL
3XP
XC6221B221MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.2V±1%, 200mA, +CE, CL
3XR
XC6221B231GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.3V±1%, 200mA, +CE, CL
3XR
XC6221B231MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.3V±1%, 200mA, +CE, CL
3XS
XC6221B241GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.4V±1%, 200mA, +CE, CL
3XS
XC6221B241MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.4V±1%, 200mA, +CE, CL
3XT
XC6221B251GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.5V±1%, 200mA, +CE, CL
3XT
XC6221B251MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.5V±1%, 200mA, +CE, CL
3XU
XC6221B261GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.6V±1%, 200mA, +CE, CL
3XU
XC6221B261MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.6V±1%, 200mA, +CE, CL
3XV
XC6221B271GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.7V±1%, 200mA, +CE, CL
3XV
XC6221B271MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.7V±1%, 200mA, +CE, CL
3XX
XC6221B281GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.8V±1%, 200mA, +CE, CL
3XX
XC6221B281MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.8V±1%, 200mA, +CE, CL
3XY
XC6221B291GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 2.9V±1%, 200mA, +CE, CL
3XY
XC6221B291MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.9V±1%, 200mA, +CE, CL
3XZ
XC6221B301GR
Torex Semiconductor
USP-4
Linear voltage regulator IC
LDO, 3.0V±1%, 200mA, +CE, CL
3XZ
XC6221B301MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 3.0V±1%, 200mA, +CE, CL
3X0G
U74LVC1G240G-AL5
Unisonic Technologies
SOT-353
CMOS logic IC
Bus buffer inverted with 3-state output, H-free
3X0L
U74LVC1G240L-AL5
Unisonic Technologies
SOT-353
CMOS logic IC
Bus buffer inverted with 3-state output, L-free

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