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: 288
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Packaging
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Load Voltage Rating
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Maximum Operating Temperature
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IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET
Datasheet
6 820In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

Reel, Cut Tape, MouseReel PCB Mount 1 A 60 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) LCA710
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET
Datasheet
10 029In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

Reel, Cut Tape, MouseReel PCB Mount 2.2 A 60 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) LCA715
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 6PIN DIP
Datasheet
6 051In Stock
Min.: 1
Mult.: 1

Tube PCB Mount 250 mA 400 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) PLA140
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA
Datasheet
19 327In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

Reel, Cut Tape, MouseReel PCB Mount 180 mA 800 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) PLA170
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP
Datasheet
17 961In Stock
12 000Expected 10/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel PCB Mount 75 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) CPC1006
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 300mA Solid State Relay
Datasheet
3 141In Stock
4 000Expected 17/08/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel PCB Mount 300 mA 100 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 110 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1004
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay
Datasheet
14 550In Stock
41 337On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel PCB Mount 150 mA 100 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) CPC1008
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR
Datasheet
5 786In Stock
Min.: 1
Mult.: 1

Tube PCB Mount 150 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) CPC1009
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR
Datasheet
5 282In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel PCB Mount 150 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) CPC1009
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay
Datasheet
4 863In Stock
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 1-Form-A 100V 100mA Solid State Relay
Datasheet
11 397In Stock
4 000Expected 05/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel 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 RELAY OPTO NSOIC4 30V 1.2A
Datasheet
3 927In Stock
6 000Expected 07/09/2026
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 400V 120mA Solid State Relay
Datasheet
2 600In Stock
6 400On Order
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
Datasheet
3 422In Stock
1 400Expected 04/08/2026
Min.: 1
Mult.: 1

Tube PCB Mount 120 mA 350 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) CPC1030
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay
Datasheet
5 622In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 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) CPC1030
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay
Datasheet
8 002In Stock
4 000Expected 04/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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) CPC1035
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay
Datasheet
3 597In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2 000

Reel, Cut Tape, MouseReel 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) CPC1225
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SOP
Datasheet
1 985In Stock
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
Datasheet
4 304In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 Single Pole Relay 400V 140mA
Datasheet
4 271In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

Reel, Cut Tape, MouseReel PCB Mount 140 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-4 MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1390
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay
Datasheet
6 835In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

Reel, Cut Tape, MouseReel PCB Mount 90 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-4 MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1393
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation
Datasheet
2 070In Stock
2 000Expected 07/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

Reel, Cut Tape, MouseReel PCB Mount 120 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1394
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay
Datasheet
5 361In Stock
Min.: 1
Mult.: 1

Tube PCB Mount 600 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC 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) CPC1560
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP
Datasheet
1 252In Stock
Min.: 1
Mult.: 1

Tube PCB Mount 120 mA 600 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) CPC1593
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation
Datasheet
5 660In Stock
Min.: 1
Mult.: 1

Tube PCB Mount 4 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SIP-4 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) CPC1706