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 '1X'

Marking
Name
Manufacturer/Case
Function
1X
2SC2845
Panasonic
SC-59
NPN transistor
UHF, LN, 25V, 70mA, 200mW, B=40..200, 4.5GHz
1X
BF822
ITT Intermetall
SOT-23
NPN transistor
Vid, 250V, 50mA, 250mW, B>50, >60MHz
1X
MM3Z6V8
Luguang Electronic Technology
SOD-323FL
Zener diode
6.4..7.2V, Izt=5mA, Zzt=30, 300mW
1X
MMBT930L
Motorola
SOT-23
NPN transistor
GP, 60V, 0.1A, 200mW, B= 100..300, >300MHz
1X
R1210N411C
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 4.1V, 100kHz
1X
R3117K281A
Ricoh
DFN1010-4
Voltage detector IC
2.8V±1%, -Reset ODO, Sense
1X
R5326N022A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/2.9V±1%, 150mA, +CE
1X
RP112K301B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 3.0V±1%, 150mA, +CE
1X
RP173K301A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 3.0V±1%, 150mA, -CE
1X
STZ8068

SOD-323
Zener diode
6.4..7.2V, Izt=5mA, Zzt=20, 300mW
1X
UNRF2A5
Panasonic
ML3
NPN transistor
Sw, 50V, 80mA, 100mW, 150MHz, R1=10k
1X
XC6127N49BNR
Torex Semiconductor
SSOT-24
Voltage detector IC
4.9V±0.8%, -Reset ODO, -MR, Rt=100ms
1X
XC6217C2827R-G
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 2.8V±2%, 200mA, +CE
1X
XC6217C282NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.8V±2%, 200mA, +CE
1X
XC6223B3719R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.7V±1%, 300mA, +CE, CL
1X
XC6229D4011R-G
Torex Semiconductor
BGA-4
Linear voltage regulator IC
LDO, 4.0V±1%, 300mA, +CE
1X1
S-1333D31-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE
1X1
S-1333D31-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE
1X2
S-1333D32-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE
1X2
S-1333D32-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE
1X3
S-1333D33-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE
1X3
S-1333D33-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE
1X4
S-1333D34-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE
1X4
S-1333D34-M5T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE
1X5
S-1333D35-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE
1X5
S-1333D35-M5T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE
1X7
XC6217B082MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 0.8V±2%, 200mA, +CE, CL, Shutdown
1X8
XC6217B092MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 0.9V±2%, 200mA, +CE, CL, Shutdown
1X9
XC6217B102MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.0V±2%, 200mA, +CE, CL, Shutdown
1XA
S-1333D10-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE
1XA
S-1333D10-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.0V±1%, 300mA, +CE
1XA
XC6217B112MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.1V±2%, 200mA, +CE, CL, Shutdown
1XB
2SC4780-B
Panasonic
SOT-323
NPN transistor
UHF, LN, 25V, 50mA, 150mW, B=40..100, 4.5GHz
1XB
S-1333D11-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE
1XB
S-1333D11-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.1V±1%, 300mA, +CE
1XB
XC6217B122MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.2V±2%, 200mA, +CE, CL, Shutdown
1XC
2SC4780-C
Panasonic
SOT-323
NPN transistor
UHF, LN, 25V, 50mA, 150mW, B=80..200, 4.5GHz
1XC
S-1333D12-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE
1XC
S-1333D12-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.2V±1%, 300mA, +CE
1XC
XC6217B132MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.3V±2%, 200mA, +CE, CL, Shutdown
1XD
S-1333D13-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE
1XD
S-1333D13-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.3V±1%, 300mA, +CE
1XD
XC6217B142MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.4V±2%, 200mA, +CE, CL, Shutdown
1XE
S-1333D14-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE
1XE
S-1333D14-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.4V±1%, 300mA, +CE
1XE
XC6217B152MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.5V±2%, 200mA, +CE, CL, Shutdown
1XF
S-1333D15-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE
1XF
S-1333D15-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.5V±1%, 300mA, +CE
1XF
XC6217B162MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.6V±2%, 200mA, +CE, CL, Shutdown
1XG
S-1333D16-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE
1XG
S-1333D16-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.6V±1%, 300mA, +CE
1XH
S-1333D17-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE
1XH
S-1333D17-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.7V±1%, 300mA, +CE
1XH
XC6217B172MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.7V±2%, 200mA, +CE, CL, Shutdown
1XJ
S-1333D18-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE
1XJ
S-1333D18-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.8V±1%, 300mA, +CE
1XK
S-1333D1J-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE
1XK
S-1333D1J-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.85V±1%, 300mA, +CE
1XK
XC6217B182MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.8V±2%, 200mA, +CE, CL, Shutdown
1XL
S-1333D19-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE
1XL
S-1333D19-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 1.9V±1%, 300mA, +CE
1XL
XC6217B192MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 1.9V±2%, 200mA, +CE, CL, Shutdown
1XM
XC6217B202MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.0V±2%, 200mA, +CE, CL, Shutdown
1XN
S-1333D20-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE
1XN
S-1333D20-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.0V±1%, 300mA, +CE
1XN
XC6217B212MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.1V±2%, 200mA, +CE, CL, Shutdown
1XO
S-1333D21-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE
1XO
S-1333D21-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.1V±1%, 300mA, +CE
1XP
2SB1599-P
Panasonic
SOT-89
PNP transistor
AF, 50V, 1.5A, 1W, B=50..100, 150MHz
1Xp
BF822

SOT-23
NPN transistor
Vid, 250V, 50mA, 250mW, B>50, >60MHz
1XP
S-1333D22-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE
1XP
S-1333D22-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.2V±1%, 300mA, +CE
1XP
XC6217B222MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.2V±2%, 200mA, +CE, CL, Shutdown
1XQ
2SB1599-Q
Panasonic
SOT-89
PNP transistor
AF, 50V, 1.5A, 1W, B=80..160, 150MHz
1XQ
S-1333D23-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE
1XQ
S-1333D23-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.3V±1%, 300mA, +CE
1XR
2SB1599-R
Panasonic
SOT-89
PNP transistor
AF, 50V, 1.5A, 1W, B=100..220, 150MHz
1XR
S-1333D24-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE
1XR
S-1333D24-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.4V±1%, 300mA, +CE
1XR
XC6217B232MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.3V±2%, 200mA, +CE, CL, Shutdown
1XS
S-1333D25-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE
1XS
S-1333D25-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.5V±1%, 300mA, +CE
1XS
XC6217B242MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.4V±2%, 200mA, +CE, CL, Shutdown
1Xt
BF822
Philips
SOT-23
NPN transistor
Vid, 250V, 50mA, 250mW, B>50, >60MHz
1XT
S-1333D26-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE
1XT
S-1333D26-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.6V±1%, 300mA, +CE
1XT
XC6217B252MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.5V±2%, 200mA, +CE, CL, Shutdown
1XU
S-1333D27-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE
1XU
S-1333D27-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.7V±1%, 300mA, +CE
1XU
XC6217B262MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.6V±2%, 200mA, +CE, CL, Shutdown
1XV
S-1333D28-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE
1XV
S-1333D28-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.8V±1%, 300mA, +CE
1XV
XC6217B272MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.7V±2%, 200mA, +CE, CL, Shutdown
1XW
BF822

SOT-23
NPN transistor
Vid, 250V, 50mA, 250mW, B>50, >60MHz
1XX
S-1333D2J-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE
1XX
S-1333D2J-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.85V±1%, 300mA, +CE
1XX
XC6217B282MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.8V±2%, 200mA, +CE, CL, Shutdown
1XY
S-1333D29-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE
1XY
S-1333D29-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE
1XY
XC6217B292MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 2.9V±2%, 200mA, +CE, CL, Shutdown
1XZ
S-1333D30-A4T1U3
Seiko Instruments
HSNT-4
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE
1XZ
S-1333D30-M5T1U3
Seiko Instruments
SOT-23-5
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE
1XZ
XC6217B302MR
Torex Semiconductor
SOT-25
Linear voltage regulator IC
LDO, 3.0V±2%, 200mA, +CE, CL, Shutdown