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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 SP-NO SS OptoMOS Relay LCA701STR IXYS Integrated Circuits 1: 8,47 € 2 514In Stock	Mfr. Part No. LCA701STR Mouser Part No 849-LCA701STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2 514In Stock	Cut Tape 8,47 € 7,55 € 7,21 € 6,96 € View Reel 5,97 € 6,73 € 6,39 € 6,17 € 5,97 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA710STR IXYS Integrated Circuits 1: 8,63 € 4 817In 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 817In 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 € 4 158In Stock 5 000Expected 7/30/2027	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	4 158In Stock 5 000Expected 7/30/2027	Cut Tape 9,30 € 8,28 € 7,91 € 7,64 € View Reel 6,42 € 7,38 € 7,03 € 6,79 € 6,42 € 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 777In 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 777In 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 5/24/2027 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 5/24/2027	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 € 189 532In Stock 120 000Expected 6/23/2027 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	189 532In Stock 120 000Expected 6/23/2027	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 € 3,83 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay CPC1020NTR IXYS Integrated Circuits 1: 5,21 € 102 021In 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	102 021In 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 7/30/2027 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 7/30/2027	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 649In 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 649In 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 € 12 617In Stock 17 625Expected 7/30/2027 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	12 617In Stock 17 625Expected 7/30/2027	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 375On Order 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 375On Order On Order Ship Dates Mfr. No: CPC1968J Stock: 921 Can Dispatch Immediately On Order: 175 Expected 11/4/2026 200 Expected 11/30/2026 Factory Lead Time: 54 Weeks	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 € 11 199In Stock 4 000Expected 8/9/2027 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	11 199In Stock 4 000Expected 8/9/2027	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 1/22/2027	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 1/22/2027	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 11/23/2026	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 11/23/2026	7,40 € 6,59 € 6,10 € 5,91 € 5,88 €	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay CPC1976Y IXYS Integrated Circuits 1: 6,65 € 946In Stock 5 925On 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	946In Stock 5 925On Order On Order Ship Dates Mfr. No: CPC1976Y Stock: 946 Can Dispatch Immediately On Order: 1 825 Expected 11/4/2026 4 100 Expected 1/8/2027 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