OptoMOS 1-Form-A (SPST-NO) Solid State Relays

Littelfuse offers an extensive portfolio of 1-Form-A (SPST-NO) Solid State Relays (SSRs) in various PC board-mount package sizes. These relays feature load current ratings from 50mA to 9A (20A with heat sink), and 30V to 1000V load voltage ratings. 1-Form-A relays are available in SOP-4, SIP-4, SMD DIP-4, SMD DIP-6, SOIC-16, Power i4-PAC, and ISOPLUS-264 packages. Fault-protected SSRs with active current limit and thermal shutdown are also available from Littelfuse to offer robust and rugged switching solutions.

Results: 268
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Packaging Mounting Style Load Current Rating Load Voltage Rating Relay Contact Form Control Voltage Range Package/Case Output Type Input Current Minimum Operating Temperature Maximum Operating Temperature Length Width Height Series
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V, 1-Form-A SSR 9.284In Stock
6.000Expected 24/05/2027
Cut Tape
Rp71.732,86
Rp63.844,08
Rp61.092,18
Rp58.523,74
Reel
Rp50.084,58
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 170 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC10
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay 1.646In Stock
Rp58.890,66
Rp55.221,46
Rp49.167,28
Rp47.332,68
Min.: 1
Mult.: 1
Tube PCB Mount 100 mA 100 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1016
IXYS Integrated Circuits Solid State Relays - PCB Mount SPNO RELAY 189.810In Stock
120.000Expected 12/05/2027
Rp15.777,56
Rp14.108,07
Rp13.576,04
Rp10.842,49
Min.: 1
Mult.: 1
Tube PCB Mount 100 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1017
IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A 34.160In Stock
Rp123.285,12
Rp110.076,00
Rp104.021,82
Rp99.618,78
Min.: 1
Mult.: 1
Tube PCB Mount 1.2 A 30 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC1020
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay 107.781In Stock
Cut Tape
Rp111.176,76
Rp99.068,40
Rp94.665,36
Rp91.363,08
Reel
Rp78.153,96
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 1.2 A 30 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC1020
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay 7.390In Stock
400Expected 30/07/2027
Rp59.441,04
Rp53.019,94
Rp50.451,50
Rp48.800,36
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1025
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SOP 1.753In Stock
Rp68.980,96
Rp62.926,78
Rp57.973,36
Rp55.588,38
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1230
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay 2.649In Stock
Cut Tape
Rp63.844,08
Rp59.807,96
Rp53.203,40
Rp50.818,42
Reel
Rp43.846,94
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1230
IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC 527In Stock
Rp353.710,88
Rp315.184,28
Rp300.690,94
Rp290.417,18
Min.: 1
Mult.: 1
Tube PCB Mount 4 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.56 VDC i4-PAC MOSFET 50 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 20.879 mm (0.822 in) CPC1708
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V Single Pole DC Power Relay 572In Stock
Rp153.922,94
Rp144.199,56
Rp128.238,54
Rp121.817,44
Min.: 1
Mult.: 1
Tube PCB Mount 1 A 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC i4-PAC MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1726
IXYS Integrated Circuits Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay 13.117In Stock
17.625Expected 12/02/2027
Rp220.518,92
Rp196.302,20
Rp159.610,20
Rp154.289,86
Min.: 1
Mult.: 1
Tube PCB Mount 6 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOIC-8 MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1907
IXYS Integrated Circuits Solid State Relays - PCB Mount SP, NO ISOPLUS-264 218In Stock
Rp585.604,32
Rp523.778,30
Rp499.928,50
Rp482.683,26
Min.: 1
Mult.: 1
Tube PCB Mount 2.7 A 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC ISOPLUS264 MOSFET 100 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 26.162 mm (1.03 in) CPC1927
IXYS Integrated Circuits Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay 921In Stock
375Expected 30/11/2026
Rp832.358,02
Rp779.154,62
Rp707.788,68
Min.: 1
Mult.: 1
Tube PCB Mount 2 A 500 VDC 1 Form A (SPST-NO) 900 mVDC to 1.56 VDC ISOPLUS264 MOSFET 100 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 26.162 mm (1.03 in) CPC1968
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole 698In Stock
Cut Tape
Rp164.747,08
Rp146.951,46
Rp140.346,90
Rp135.393,48
Reel
Rp115.396,34
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA 11.187In Stock
4.000Expected 13/01/2027
Cut Tape
Rp74.668,22
Rp66.595,98
Rp63.660,62
Rp61.275,64
Reel
Rp51.001,88
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA 1.404In Stock
Cut Tape
Rp135.393,48
Rp126.954,32
Rp112.827,90
Rp107.140,64
Reel
Rp88.794,64
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 200 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA127
IXYS Integrated Circuits Solid State Relays - PCB Mount 8-Pin Power SOIC 1.905In Stock
1.725Expected 24/03/2027
Rp180.157,72
Rp160.527,50
Rp153.189,10
Rp147.868,76
Min.: 1
Mult.: 1
Tube PCB Mount 3 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC ISOPLUS264 SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1966
IXYS Integrated Circuits Solid State Relays - PCB Mount AC Switch 3A, 600V 456In Stock
7.650Expected 23/11/2026
Rp157.775,60
Rp140.530,36
Rp130.073,14
Rp129.522,76
Min.: 1
Mult.: 1
Tube PCB Mount 3 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SIP-4 SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1966
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET 283In Stock
Rp210.061,70
Rp186.762,28
Rp177.405,82
Rp168.049,36
Min.: 1
Mult.: 1
Tube PCB Mount 1 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA712
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET 833In Stock
Rp219.968,54
Rp195.751,82
Rp186.395,36
Rp178.139,66
Min.: 1
Mult.: 1
Tube PCB Mount 2.2 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA715
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay 812In Stock
2.000Expected 15/07/2027
Cut Tape
Rp190.798,40
Rp178.690,04
Rp158.876,36
Rp150.987,58
Reel
Rp122.000,90
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 2 A 30 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA717
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR 267In Stock
Rp266.750,84
Rp237.030,32
Rp225.288,88
Rp213.363,98
Min.: 1
Mult.: 1
Tube PCB Mount 250 mA 250 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PAA150
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA 835In Stock
Rp159.610,20
Rp142.364,96
Rp135.943,86
Rp120.533,22
Min.: 1
Mult.: 1
Tube PCB Mount 250 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA150
IXYS Integrated Circuits Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA 1.089In Stock
Cut Tape
Rp166.031,30
Rp156.674,84
Reel
Rp110.626,38
Rp98.334,56
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 250 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA150
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA 754In Stock
Cut Tape
Rp160.710,96
Rp143.282,26
Rp136.494,24
Rp129.706,22
Reel
Rp106.039,88
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 50 mA 300 VDC 1 Form A (SPST-NO) 1.8 VDC to 2.8 VDC MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) PLA160