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 '1W'
Tap on the package name to see a picture of it
Marking
Name
Manufacturer/Case
Function
1W
MM3Z56V
Secos
SOD-323
SOD-323
Zener diode
52..60V, Izt=2mA, Zzt=200, 200mW
52..60V, Izt=2mA, Zzt=200, 200mW
1W
BF821
Continental Device India
SOT-23
SOT-23
PNP transistor
Vid, 300V, 50mA, 250mW, B>50, >60MHz
Vid, 300V, 50mA, 250mW, B>50, >60MHz
1W
FMMT3903
Zetex
SOT-23
SOT-23
NPN transistor
GP, 60V, 200mA, 330mW, B=50..150, >250MHz
GP, 60V, 200mA, 330mW, B=50..150, >250MHz
1W
2SC5019
Panasonic
SOT-89
SOT-89
NPN transistor
UHF, LN, 15V, 80mA, 1W, B=80..250, 6GHz
UHF, LN, 15V, 80mA, 1W, B=80..250, 6GHz
1W
UNRF2A3
Panasonic
ML3
ML3
NPN transistor
Sw, 50V, 80mA, 100mW, 150MHz, R1/R2=47k/47k
Sw, 50V, 80mA, 100mW, 150MHz, R1/R2=47k/47k
1W
R3117K271A
Ricoh
DFN1010-4
DFN1010-4
Voltage detector IC
2.7V±1%, -Reset ODO, Sense
2.7V±1%, -Reset ODO, Sense
1W
RP112K291B
Ricoh
DFN1010-4
DFN1010-4
Linear voltage regulator IC
LDO, 2.9V±1%, 150mA, +CE
LDO, 2.9V±1%, 150mA, +CE
1W
RP173K291A
Ricoh
DFN1010-4
DFN1010-4
Linear voltage regulator IC
LDO, 2.9V±1%, 150mA, -CE
LDO, 2.9V±1%, 150mA, -CE
1W
R1210N311C
Ricoh
SOT-23-5
SOT-23-5
DC/DC voltage converter IC
PWM st-up, 3.1V, 100kHz
PWM st-up, 3.1V, 100kHz
1W
7UL1T125FS
Toshiba
SOT-953
SOT-953
CMOS logic IC
Bus buffer gate with 3-state output
Bus buffer gate with 3-state output
1W
R5105N351A
Ricoh
SOT-23-6
SOT-23-6
Voltage detector IC
3.5V±1%, -Reset ODO
3.5V±1%, -Reset ODO
1W
R5326N021A
Ricoh
SOT-23-6
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/2.8V±1%, 150mA, +CE
LDO, Dual out, Vout1/Vout2=1.5V/2.8V±1%, 150mA, +CE
1W-
BAP51-05W
Philips
SOT-323
SOT-323
PIN diode
Dual, RF, 50V, 50mA, 240mW, 0.35pF, 2.5(10mA/100MHz)
Dual, RF, 50V, 50mA, 240mW, 0.35pF, 2.5(10mA/100MHz)
1W1
STZ8043C
JinYu semiconductor
SOD-323
SOD-323
Zener diode
4.31..4.54V, Izt=5mA, Zzt=130, 300mW
4.31..4.54V, Izt=5mA, Zzt=130, 300mW
1WE
1KSMB10CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=8.55V, Vbr=9.50..10.50V, 69.0A, 1000W(1ms), Bidir.
Vrwm=8.55V, Vbr=9.50..10.50V, 69.0A, 1000W(1ms), Bidir.
1WG
1KSMB11CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=9.40V, Vbr=10.50..11.60V, 64.1A, 1000W(1ms), Bidir.
Vrwm=9.40V, Vbr=10.50..11.60V, 64.1A, 1000W(1ms), Bidir.
1WK
1KSMB12CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=10.20V, Vbr=11.40..12.60V, 59.9A, 1000W(1ms), Bidir.
Vrwm=10.20V, Vbr=11.40..12.60V, 59.9A, 1000W(1ms), Bidir.
1WM
1KSMB13CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=11.10V, Vbr=12.40..13.70V, 54.9A, 1000W(1ms), Bidir.
Vrwm=11.10V, Vbr=12.40..13.70V, 54.9A, 1000W(1ms), Bidir.
1WP
1KSMB15CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=12.80V, Vbr=14.30..15.80V, 47.2A, 1000W(1ms), Bidir.
Vrwm=12.80V, Vbr=14.30..15.80V, 47.2A, 1000W(1ms), Bidir.
1Wp
BF821
Philips
SOT-23
SOT-23
PNP transistor
Vid, 300V, 50mA, 250mW, B>50, >60MHz
Vid, 300V, 50mA, 250mW, B>50, >60MHz
1WR
1KSMB16CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=13.60V, Vbr=15.20..16.80V, 44.4A, 1000W(1ms), Bidir.
Vrwm=13.60V, Vbr=15.20..16.80V, 44.4A, 1000W(1ms), Bidir.
1WT
1KSMB18CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=15.30V, Vbr=17.10..18.90V, 39.2A, 1000W(1ms), Bidir.
Vrwm=15.30V, Vbr=17.10..18.90V, 39.2A, 1000W(1ms), Bidir.
1Wt
BF821
Philips
SOT-23
SOT-23
PNP transistor
Vid, 300V, 50mA, 250mW, B>50, >60MHz
Vid, 300V, 50mA, 250mW, B>50, >60MHz
1Wt
BF822W
Philips
SOT-323
SOT-323
NPN transistor
Vid, 250V, 100mA, 200mW, B>50, >60MHz
Vid, 250V, 100mA, 200mW, B>50, >60MHz
1WV
1KSMB20CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=17.10V, Vbr=19.0..21.0V, 36.1A, 1000W(1ms), Bidir.
Vrwm=17.10V, Vbr=19.0..21.0V, 36.1A, 1000W(1ms), Bidir.
1WW
BF821
Philips
SOT-23
SOT-23
PNP transistor
Vid, 300V, 50mA, 250mW, B>50, >60MHz
Vid, 300V, 50mA, 250mW, B>50, >60MHz
1WX
1KSMB22CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=18.80V, Vbr=20.90..23.10V, 32.7A, 1000W(1ms), Bidir.
Vrwm=18.80V, Vbr=20.90..23.10V, 32.7A, 1000W(1ms), Bidir.
1WZ
1KSMB24CA
Rectron Semiconductor
DO-214AA
DO-214AA
Transient voltage supressor
Vrwm=20.50V, Vbr=22.80..25.20V, 30.1A, 1000W(1ms), Bidir.
Vrwm=20.50V, Vbr=22.80..25.20V, 30.1A, 1000W(1ms), Bidir.
Other codes starting with '1…' :