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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 600mA Solid State Relay CPC1560GS IXYS Integrated Circuits 1: 7,19 € 3 298On Order End of Life	Mfr. Part No. CPC1560GS Mouser Part No 849-CPC1560GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3 298On Order On Order Ship Dates Mfr. No: CPC1560GS Stock: 0 On Order: 2 298 Expected 17/05/2027 1 000 Expected 29/12/2027 Factory Lead Time: 54 Weeks	7,19 € 6,74 € 5,99 € 5,69 € View 5,39 € 5,03 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1978J IXYS Integrated Circuits 1: 21,91 € 860On Order End of Life	Mfr. Part No. CPC1978J Mouser Part No 849-CPC1978J 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	860On Order On Order Ship Dates Mfr. No: CPC1978J Stock: 0 On Order: 160 Expected 21/12/2026 375 Expected 31/03/2027 325 Expected 06/05/2027 Factory Lead Time: 54 Weeks	21,91 € 20,14 € 19,08 € 18,03 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST iso PLUS-264 CPC1979J IXYS Integrated Circuits 1: 34,55 € 6 034On Order End of Life	Mfr. Part No. CPC1979J Mouser Part No 849-CPC1979J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST iso PLUS-264 Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6 034On Order On Order Ship Dates Mfr. No: CPC1979J Stock: 0 On Order: 209 Expected 02/12/2026 5 825 Expected 10/12/2027 Factory Lead Time: 73 Weeks	34,55 € 32,81 € 31,09 € 29,36 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation CPC1983Y IXYS Integrated Circuits 1: 9,23 € 7 435On Order End of Life	Mfr. Part No. CPC1983Y Mouser Part No 849-CPC1983Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 600V,0.5A 2500Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7 435On Order On Order Ship Dates Mfr. No: CPC1983Y Stock: 0 On Order: 610 Expected 18/11/2026 6 825 Expected 29/07/2027 Factory Lead Time: 40 Weeks	9,23 € 8,45 € 7,77 € 7,43 € View 6,99 € 6,67 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY, SS ICS CPC1983YE IXYS Integrated Circuits 1: 9,42 € 12 866On Order End of Life	Mfr. Part No. CPC1983YE Mouser Part No 849-CPC1983YE End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY, SS ICS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	12 866On Order On Order Ship Dates Mfr. No: CPC1983YE Stock: 0 On Order: 7 016 Expected 18/11/2026 5 850 Expected 15/02/2027 Factory Lead Time: 37 Weeks	9,42 € 8,76 € 8,02 € 7,74 € View 7,47 € 7,14 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 100V 300mA Double Pole Relay LAA108STR IXYS Integrated Circuits 1: 4,57 € 7 000On Order End of Life	Mfr. Part No. LAA108STR Mouser Part No 849-LAA108STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V 300mA Double Pole Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7 000On Order On Order Ship Dates Mfr. No: LAA108STR Stock: 0 On Order: 5 000 Expected 28/07/2027 2 000 Expected 30/07/2027 Factory Lead Time: 36 Weeks	Cut Tape 4,57 € 4,14 € 3,81 € 3,61 € View Reel 3,02 € 3,44 € 3,29 € 3,17 € 3,02 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Triac & SCR Output Optocouplers AC SS Power Switch Dual Power SCR Out CPC1976YX6 IXYS Integrated Circuits 1: 9,12 € 455Expected 22/02/2027	Mfr. Part No. CPC1976YX6 Mouser Part No 849-CPC1976YX6	IXYS Integrated Circuits	Triac & SCR Output Optocouplers AC SS Power Switch Dual Power SCR Out Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	455Expected 22/02/2027	9,12 € 7,44 € 6,44 € 6,05 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A SSR LCA701 IXYS Integrated Circuits 1: 10,22 € 707Expected 16/11/2026	Mfr. Part No. LCA701 Mouser Part No 849-LCA701	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	707Expected 16/11/2026	10,22 € 8,98 € 8,56 € 8,18 € View 7,80 € 6,98 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A LCA710R IXYS Integrated Circuits 1: 9,06 € 946Expected 21/07/2027	Mfr. Part No. LCA710R Mouser Part No 849-LCA710R	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	946Expected 21/07/2027	9,06 € 8,50 € 7,55 € 7,17 € View 6,80 € 6,22 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA712STR IXYS Integrated Circuits 1: 10,01 € 1 600Expected 21/01/2027	Mfr. Part No. LCA712STR Mouser Part No 849-LCA712STR	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	1 600Expected 21/01/2027	Cut Tape 10,01 € 9,38 € 8,34 € 7,92 € View Reel 6,40 € 7,51 € 6,86 € 6,62 € 6,40 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay LCA717S IXYS Integrated Circuits 1: 9,39 € 2 180Expected 23/10/2026	Mfr. Part No. LCA717S Mouser Part No 849-LCA717S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2 180Expected 23/10/2026	9,39 € 8,80 € 7,82 € 7,43 € View 7,04 € 6,43 € 6,22 € 6,00 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA110 IXYS Integrated Circuits 1: 11,76 € 485On Order	Mfr. Part No. PAA110 Mouser Part No 849-PAA110	IXYS Integrated Circuits	Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	485On Order On Order Ship Dates Mfr. No: PAA110 Stock: 0 On Order: 85 Expected 13/01/2027 400 Expected 17/05/2027 Factory Lead Time: 35 Weeks	11,76 € 10,48 € 10,01 € 9,67 € View 8,45 € 7,81 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR PAA150 IXYS Integrated Circuits 1: 12,23 € 192On Order	Mfr. Part No. PAA150 Mouser Part No 849-PAA150	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	192On Order On Order Ship Dates Mfr. No: PAA150 Stock: 0 On Order: 92 Expected 24/05/2027 100 Expected 19/07/2027 Factory Lead Time: 36 Weeks	12,23 € 10,88 € 10,36 € 9,81 € 9,48 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA191S IXYS Integrated Circuits 1: 12,59 € 712Expected 17/03/2027	Mfr. Part No. PAA191S Mouser Part No 849-PAA191S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	712Expected 17/03/2027	12,59 € 11,22 € 10,72 € 10,33 € View 9,98 € 9,52 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA PLA192S IXYS Integrated Circuits 1: 6,09 € 1 825On Order	Mfr. Part No. PLA192S Mouser Part No 849-PLA192S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 825On Order On Order Ship Dates Mfr. No: PLA192S Stock: 0 On Order: 875 Expected 23/11/2026 500 Expected 07/12/2026 450 Expected 16/04/2027 Factory Lead Time: 35 Weeks	6,09 € 5,43 € 5,19 € 5,01 € View 4,83 € 4,62 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA PLA192STR IXYS Integrated Circuits 1: 6,02 € 34In Stock 2 000Expected 26/07/2027	Mfr. Part No. PLA192STR Mouser Part No 849-PLA192STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	34In Stock 2 000Expected 26/07/2027	Cut Tape 6,02 € 5,50 € 5,07 € 4,85 € View Reel 4,11 € 4,64 € 4,40 € 4,25 € 4,11 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR CPC1009NTR IXYS Integrated Circuits 1: 2,59 € 7 741On Order End of Life	Mfr. Part No. CPC1009NTR Mouser Part No 849-CPC1009NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7 741On Order On Order Ship Dates Mfr. No: CPC1009NTR Stock: 0 On Order: 5 741 Expected 24/05/2027 2 000 Expected 02/08/2027 Factory Lead Time: 36 Weeks	Cut Tape 2,59 € 2,36 € 2,18 € 2,11 € View Reel 1,69 € 2,04 € 1,95 € 1,87 € 1,69 € 1,69 € MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1030N IXYS Integrated Circuits 1: 3,39 € 1 817Expected 19/04/2027 End of Life	Mfr. Part No. CPC1030N Mouser Part No 849-CPC1030N 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 817Expected 19/04/2027	3,39 € 3,02 € 2,89 € 2,78 € View 2,67 € 2,54 € 2,47 € 2,38 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GR IXYS Integrated Circuits 1: 3,93 € 600Expected 02/12/2026 End of Life	Mfr. Part No. CPC1390GR Mouser Part No 849-CPC1390GR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole Relay 400V 140mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	600Expected 02/12/2026	3,93 € 3,54 € 3,31 € 3,17 € View 3,04 € 2,91 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394G IXYS Integrated Circuits 1: 4,25 € 500Expected 28/12/2026 End of Life	Mfr. Part No. CPC1394G Mouser Part No 849-CPC1394G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	500Expected 28/12/2026	4,25 € 3,98 € 3,54 € 3,36 € View 3,21 € 3,06 € 2,96 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510GS IXYS Integrated Circuits 1: 5,97 € 2 502On Order End of Life	Mfr. Part No. CPC1510GS Mouser Part No 849-CPC1510GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2 502On Order On Order Ship Dates Mfr. No: CPC1510GS Stock: 0 On Order: 1 752 Expected 23/11/2026 750 Expected 29/12/2027 Factory Lead Time: 61 Weeks	5,97 € 5,24 € 4,99 € 4,82 € View 4,65 € 4,44 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1563GS IXYS Integrated Circuits 1: 5,74 € 1 100Expected 10/12/2026 End of Life	Mfr. Part No. CPC1563GS Mouser Part No 849-CPC1563GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 100Expected 10/12/2026	5,74 € 5,25 € 4,83 € 4,58 € View 4,42 € 4,21 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP CPC1593G IXYS Integrated Circuits 1: 5,61 € 499Expected 03/11/2027 End of Life	Mfr. Part No. CPC1593G Mouser Part No 849-CPC1593G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	499Expected 03/11/2027	5,61 € 5,00 € 4,77 € 4,60 € View 4,45 € 3,92 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R CPC1593GSTR IXYS Integrated Circuits 1: 5,36 € 1 742Expected 04/11/2027 End of Life	Mfr. Part No. CPC1593GSTR Mouser Part No 849-CPC1593GSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM T/R Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 742Expected 04/11/2027	Cut Tape 5,36 € 4,77 € 4,56 € 4,40 € Reel 3,84 € View 4,26 € 4,05 € 3,96 € 3,82 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount SPST-NO 4PIN SIP CPC1906Y IXYS Integrated Circuits 1: 11,19 € 289Expected 23/07/2027 End of Life	Mfr. Part No. CPC1906Y Mouser Part No 849-CPC1906Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 4PIN SIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	289Expected 23/07/2027	11,19 € 9,95 € 9,45 € 8,95 € View 8,52 € 8,14 €	Min.: 1 Mult.: 1