Optocouplers/Photocouplers

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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.	Mounting Style	Package/Case	Output Type
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA140 IXYS Integrated Circuits 1: € 11,41 2 008In Stock	Mfr. Part No. PAA140 Mouser Part No 849-PAA140	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	2 008In Stock	€ 11,41 € 10,41 € 10,02 € 9,66 View € 9,27 € 8,94 € 8,72 € 8,66	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: € 2,73 203 825In Stock End of Life	Mfr. Part No. CPC1014N Mouser Part No 849-CPC1014N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	203 825In Stock	€ 2,73 € 2,43 € 2,26 € 2,18 View € 2,11 € 2,06 € 2,00 € 1,94	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: € 3,13 11 703In Stock End of Life	Mfr. Part No. CPC1330GRTR Mouser Part No 849-CPC1330GRTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	11 703In Stock	Cut Tape € 3,13 € 2,80 € 2,67 € 2,54 Reel € 2,00 View € 2,46 € 2,35 € 2,27 € 1,98 MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: € 19,02 7 144In Stock 7 550Expected 01/02/2027 End of Life	Mfr. Part No. CPC1918J Mouser Part No 849-CPC1918J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7 144In Stock 7 550Expected 01/02/2027	€ 19,02 € 17,11 € 14,77 € 14,23 View € 13,86 € 13,41 € 13,07 Quote	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: € 2,61 22 193In Stock End of Life	Mfr. Part No. CPC1016NTR Mouser Part No 849-CPC1016NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	22 193In Stock	Cut Tape € 2,61 € 2,33 € 2,19 € 2,12 Reel € 1,63 View € 2,05 € 1,95 € 1,89 € 1,63 € 1,57 MouseReel Available	Min.: 1 Mult.: 1 : 2 000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: € 3,01 27 969In Stock End of Life	Mfr. Part No. CPC1035N Mouser Part No 849-CPC1035N 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	27 969In Stock	€ 3,01 € 2,41 € 2,25 € 2,03 View € 1,98 € 1,91 € 1,85 € 1,81	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110STR IXYS Integrated Circuits 1: € 7,55 9 758In Stock End of Life	Mfr. Part No. LAA110STR Mouser Part No 849-LAA110STR 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	9 758In Stock	Cut Tape € 7,55 € 6,73 € 6,42 € 6,21 Reel € 4,40 View € 5,99 € 5,68 € 5,48 € 4,39 MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: € 4,43 42 274In Stock End of Life	Mfr. Part No. CPC1018N Mouser Part No 849-CPC1018N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST NO Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	42 274In Stock	€ 4,43 € 3,64 € 3,40 € 3,29 View € 3,01 € 2,92 € 2,87 € 2,82	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: € 2,87 8 648In Stock End of Life	Mfr. Part No. CPC1035NTR Mouser Part No 849-CPC1035NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	8 648In Stock	Cut Tape € 2,87 € 2,56 € 2,43 € 2,33 View Reel € 1,75 € 2,25 € 2,15 € 2,08 € 2,00 € 1,75 MouseReel Available	Min.: 1 Mult.: 1 : 2 000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA132 IXYS Integrated Circuits 1: € 14,50 269In Stock	Mfr. Part No. PAA132 Mouser Part No 849-PAA132	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	269In Stock	€ 14,50 € 12,89 € 12,25 € 11,60 View € 10,96 € 10,29 € 9,93	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132STR IXYS Integrated Circuits 1: € 13,82 1 188In Stock	Mfr. Part No. PAA132STR Mouser Part No 849-PAA132STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 188In Stock	Cut Tape € 13,82 € 12,29 € 11,67 € 11,06 View Reel € 8,84 € 10,44 € 9,80 € 9,47 € 8,84 MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110S IXYS Integrated Circuits 1: € 11,81 237In Stock	Mfr. Part No. PAA110S Mouser Part No 849-PAA110S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	237In Stock	€ 11,81 € 10,52 € 10,24 € 8,43 View € 8,36 € 8,24 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132S IXYS Integrated Circuits 1: € 14,50 1 240In Stock	Mfr. Part No. PAA132S Mouser Part No 849-PAA132S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 240In Stock	€ 14,50 € 12,89 € 12,25 € 11,60 View € 10,96 € 10,29 € 9,93	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA712 IXYS Integrated Circuits 1: € 9,55 848In Stock	Mfr. Part No. LCA712 Mouser Part No 849-LCA712	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	848In Stock	€ 9,55 € 8,51 € 8,13 € 6,97 € 6,62	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110STR IXYS Integrated Circuits 1: € 11,27 1 400In Stock	Mfr. Part No. PAA110STR Mouser Part No 849-PAA110STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 400In Stock	Cut Tape € 11,27 € 10,05 € 9,60 € 9,27 View Reel € 7,74 € 8,89 € 8,45 € 8,16 € 7,74 MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: € 18,12 200In Stock End of Life	Mfr. Part No. CPC1908J Mouser Part No 849-CPC1908J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST i4-PAC 60V Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	200In Stock	€ 18,12 € 16,15 € 15,41 € 14,88 View € 13,44 € 12,90	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: € 9,10 611In Stock End of Life	Mfr. Part No. LAA127 Mouser Part No 849-LAA127 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST 1 Form A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	611In Stock	€ 9,10 € 8,30 € 7,97 € 7,71 View € 7,40 € 7,16 € 6,79	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: € 3,09 1 570In Stock 500Expected 13/01/2027 End of Life	Mfr. Part No. CPC1330GR Mouser Part No 849-CPC1330GR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 570In Stock 500Expected 13/01/2027	€ 3,09 € 2,92 € 2,80 € 2,68 View € 2,58 € 2,45 € 2,29 € 2,00	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: € 5,61 978In Stock End of Life	Mfr. Part No. CPC1593GS Mouser Part No 849-CPC1593GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	978In Stock	€ 5,61 € 5,00 € 4,77 € 4,19 View € 4,02 € 3,87 € 3,74 € 3,68	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: € 17,96 186In Stock End of Life	Mfr. Part No. CPC1777J Mouser Part No 849-CPC1777J 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	186In Stock	€ 17,96 € 16,00 € 13,91 € 13,45 View € 13,22 € 13,06 Quote	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: € 27,51 218In Stock End of Life	Mfr. Part No. CPC1927J Mouser Part No 849-CPC1927J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, NO ISOPLUS-264 Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	218In Stock	€ 27,51 € 25,05 € 23,92 € 23,10 View € 22,30 € 19,19	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GSTR IXYS Integrated Circuits 1: € 2,41 3 553In Stock End of Life	Mfr. Part No. CPC1972GSTR Mouser Part No 849-CPC1972GSTR End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3 553In Stock	Cut Tape € 2,41 € 1,98 € 1,82 € 1,67 Reel € 1,50 View € 1,47 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1 000	SMD/SMT
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010N IXYS Integrated Circuits 1: € 3,52 3 837In Stock End of Life	Mfr. Part No. CPC1010N Mouser Part No 849-CPC1010N 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	3 837In Stock	€ 3,52 € 3,14 € 2,99 € 2,87 View € 2,76 € 2,63 € 2,52 € 2,43	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: € 31,82 160In Stock End of Life	Mfr. Part No. CPC1986J Mouser Part No 849-CPC1986J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	160In Stock	€ 31,82 € 28,52 € 28,47 € 27,04 € 23,82	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay OMA160 IXYS Integrated Circuits 1: € 5,91 226In Stock	Mfr. Part No. OMA160 Mouser Part No 849-OMA160	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	226In Stock	€ 5,91 € 4,50 € 4,14 € 3,96 View € 3,89 € 3,87	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET