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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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA710STR IXYS Integrated Circuits 1: € 8,63 4 792In Stock	Mfr. Part No. LCA710STR Mouser Part No 849-LCA710STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4 792In Stock	Cut Tape € 8,63 € 8,09 € 7,20 € 6,84 View Reel € 5,52 € 6,48 € 5,93 € 5,72 € 5,52 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715STR IXYS Integrated Circuits 1: € 9,30 3 639In Stock 5 000Expected 30/07/2027	Mfr. Part No. LCA715STR Mouser Part No 849-LCA715STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3 639In Stock 5 000Expected 30/07/2027	Cut Tape € 9,30 € 8,28 € 7,91 € 7,64 View Reel € 6,44 € 7,38 € 7,03 € 6,79 € 6,44 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006NTR IXYS Integrated Circuits 1: € 1,84 30 277In Stock End of Life	Mfr. Part No. CPC1006NTR Mouser Part No 849-CPC1006NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	30 277In Stock	Cut Tape € 1,84 € 1,77 € 1,69 € 1,63 Reel € 1,31 View € 1,57 € 1,49 € 1,44 € 1,31 € 1,26 MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010NTR IXYS Integrated Circuits 1: € 3,36 9 284In Stock 6 000Expected 24/05/2027 End of Life	Mfr. Part No. CPC1010NTR Mouser Part No 849-CPC1010NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V, 1-Form-A SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9 284In Stock 6 000Expected 24/05/2027	Cut Tape € 3,36 € 2,99 € 2,86 € 2,74 View Reel € 2,35 € 2,65 € 2,53 € 2,44 € 2,36 € 2,35 MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount SPNO RELAY CPC1017N IXYS Integrated Circuits 1: € 0,918 188 979In Stock 120 000Expected 23/06/2027 End of Life	Mfr. Part No. CPC1017N Mouser Part No 849-CPC1017N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPNO RELAY Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	188 979In Stock 120 000Expected 23/06/2027	€ 0,918	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019NTR IXYS Integrated Circuits 1: € 3,36 61 647In Stock End of Life	Mfr. Part No. CPC1019NTR Mouser Part No 849-CPC1019NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	61 647In Stock	Cut Tape € 3,36 € 2,99 € 2,86 € 2,75 View Reel € 2,29 € 2,66 € 2,54 € 2,45 € 2,37 € 2,29 MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A CPC1020N IXYS Integrated Circuits 1: € 5,78 34 160In Stock End of Life	Mfr. Part No. CPC1020N Mouser Part No 849-CPC1020N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	34 160In Stock	€ 5,78 € 5,16 € 4,88 € 4,67 View € 4,38 € 4,14 € 3,81	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay CPC1020NTR IXYS Integrated Circuits 1: € 5,21 101 817In Stock End of Life	Mfr. Part No. CPC1020NTR Mouser Part No 849-CPC1020NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	101 817In Stock	Cut Tape € 5,21 € 4,64 € 4,44 € 4,28 View Reel € 3,66 € 4,14 € 3,94 € 3,80 € 3,72 € 3,66 MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1025N IXYS Integrated Circuits 1: € 2,79 7 425In Stock 400Expected 30/07/2027 End of Life	Mfr. Part No. CPC1025N Mouser Part No 849-CPC1025N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7 425In Stock 400Expected 30/07/2027	€ 2,79 € 2,49 € 2,37 € 2,29 View € 2,19 € 2,09 € 2,02 € 1,95	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1230N IXYS Integrated Circuits 1: € 3,23 1 753In Stock End of Life	Mfr. Part No. CPC1230N Mouser Part No 849-CPC1230N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 4PIN SOP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 753In Stock	€ 3,23 € 2,95 € 2,71 € 2,57 View € 2,49 € 2,37 € 2,30 € 2,15 € 2,08	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1230NTR IXYS Integrated Circuits 1: € 2,99 2 149In Stock End of Life	Mfr. Part No. CPC1230NTR Mouser Part No 849-CPC1230NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2 149In Stock	Cut Tape € 2,99 € 2,80 € 2,49 € 2,38 View Reel € 2,06 € 2,30 € 2,20 € 2,12 € 2,06 € 2,06 MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1708J IXYS Integrated Circuits 1: € 16,58 492In Stock End of Life	Mfr. Part No. CPC1708J Mouser Part No 849-CPC1708J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount DC Only Single Pole i4-PAC Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	492In Stock	€ 16,58 € 14,77 € 14,10 € 13,61 View € 13,15 € 12,43 € 12,00 € 11,62	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V Single Pole DC Power Relay CPC1726Y IXYS Integrated Circuits 1: € 7,22 572In Stock End of Life	Mfr. Part No. CPC1726Y Mouser Part No 849-CPC1726Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V Single Pole DC Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	572In Stock	€ 7,22 € 6,76 € 6,01 € 5,71 View € 5,41 € 5,05 € 4,88 € 4,70	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay CPC1907B IXYS Integrated Circuits 1: € 10,34 9 917In Stock 17 625Expected 30/07/2027 End of Life	Mfr. Part No. CPC1907B Mouser Part No 849-CPC1907B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9 917In Stock 17 625Expected 30/07/2027	€ 10,34 € 9,20 € 8,75 € 8,38 View € 8,03 € 7,67 € 7,40 € 7,16 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay CPC1968J IXYS Integrated Circuits 1: € 39,02 921In Stock 375Expected 09/11/2026 End of Life	Mfr. Part No. CPC1968J Mouser Part No 849-CPC1968J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	921In Stock 375Expected 09/11/2026	€ 39,02 € 36,52 € 33,18	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP CPC1984Y IXYS Integrated Circuits 1: € 14,91 3 785In Stock End of Life	Mfr. Part No. CPC1984Y Mouser Part No 849-CPC1984Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3 785In Stock	€ 14,91 € 13,29 € 12,69 € 12,25 View € 11,80 € 11,17 € 10,78 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110LSTR IXYS Integrated Circuits 1: € 7,72 698In Stock End of Life	Mfr. Part No. LAA110LSTR Mouser Part No 849-LAA110LSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	698In Stock	Cut Tape € 7,72 € 6,89 € 6,58 € 6,35 Reel € 5,41 View € 6,13 € 5,81 € 5,61 € 5,10 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110L IXYS Integrated Circuits 1: € 3,77 1 116In Stock End of Life	Mfr. Part No. LCA110L Mouser Part No 849-LCA110L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 116In Stock	€ 3,77 € 3,51 € 3,35 € 3,24 View € 3,13 € 2,92 € 2,80 € 2,73 € 2,47	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110STR IXYS Integrated Circuits 1: € 3,50 9 047In Stock 4 000Expected 09/08/2027 End of Life	Mfr. Part No. LCA110STR Mouser Part No 849-LCA110STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9 047In Stock 4 000Expected 09/08/2027	Cut Tape € 3,50 € 3,12 € 2,98 € 2,87 Reel € 2,41 View € 2,77 € 2,65 € 2,55 € 2,38 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA LCA127STR IXYS Integrated Circuits 1: € 5,95 1 404In Stock End of Life	Mfr. Part No. LCA127STR Mouser Part No 849-LCA127STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 404In Stock	Cut Tape € 5,95 € 5,31 € 5,07 € 4,89 Reel € 4,18 View € 4,73 € 4,50 € 4,34 € 4,06 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount 8-Pin Power SOIC CPC1966B IXYS Integrated Circuits 1: € 8,45 1 905In Stock 1 725Expected 22/01/2027	Mfr. Part No. CPC1966B Mouser Part No 849-CPC1966B	IXYS Integrated Circuits	Solid State Relays - PCB Mount 8-Pin Power SOIC Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 905In Stock 1 725Expected 22/01/2027	€ 8,45 € 7,53 € 7,18 € 6,93 View € 6,68 € 6,25 € 6,12 € 5,97	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount AC Switch 3A, 600V CPC1966Y IXYS Integrated Circuits 1: € 7,40 394In Stock 7 650Expected 23/11/2026	Mfr. Part No. CPC1966Y Mouser Part No 849-CPC1966Y	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC Switch 3A, 600V Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	394In Stock 7 650Expected 23/11/2026	€ 7,40 € 6,59 € 6,10 € 5,91 € 5,67	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay CPC1976Y IXYS Integrated Circuits 1: € 6,65 2 696In Stock 4 175On Order	Mfr. Part No. CPC1976Y Mouser Part No 849-CPC1976Y	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2 696In Stock 4 175On Order On Order Ship Dates Mfr. No: CPC1976Y Stock: 2 696 Can Dispatch Immediately On Order: 75 Expected 04/11/2026 4 100 Expected 08/01/2027 Factory Lead Time: 23 Weeks	€ 6,65 € 5,47 € 4,76 € 4,47	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA712S IXYS Integrated Circuits 1: € 9,55 283In Stock	Mfr. Part No. LCA712S Mouser Part No 849-LCA712S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	283In Stock	€ 9,55 € 8,51 € 8,13 € 7,84 View € 7,53 € 7,20 € 6,95 € 6,52 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715 IXYS Integrated Circuits 1: € 10,31 833In Stock	Mfr. Part No. LCA715 Mouser Part No 849-LCA715	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	833In Stock	€ 10,31 € 9,18 € 8,74 € 8,35 View € 8,01 € 7,65 € 7,39 € 7,13 Quote	Min.: 1 Mult.: 1