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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 AC SS Power Switch Dual Power SCR Out CPC1966YX6 IXYS Integrated Circuits 1: 11,98 € 1.937In Stock	Mfr. Part No. CPC1966YX6 Mouser Part No 849-CPC1966YX6	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.937In Stock	11,98 € 10,67 € 9,19 € 8,88 € 8,60 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: 2,59 € 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 2,59 € 2,32 € 2,19 € 2,12 € Reel 1,57 € View 2,05 € 1,95 € 1,89 € 1,57 € 1,53 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: 3,01 € 27.949In 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	27.949In Stock	3,01 € 2,47 € 2,31 € 2,12 € View 2,06 € 1,99 € 1,85 € 1,81 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710STR IXYS Integrated Circuits 1: 15,87 € 3.088In Stock End of Life	Mfr. Part No. LAA710STR Mouser Part No 849-LAA710STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3.088In Stock	Cut Tape 15,87 € 14,13 € 13,49 € 13,03 € View Reel 10,38 € 12,58 € 12,00 € 11,58 € 10,38 € Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: 3,13 € 10.703In 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	10.703In Stock	Cut Tape 3,13 € 2,80 € 2,67 € 2,54 € Reel 1,93 € View 2,46 € 2,35 € 2,27 € 1,89 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: 19,02 € 6.942In Stock 7.550Expected 1/13/2027 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	6.942In Stock 7.550Expected 1/13/2027	19,02 € 17,09 € 14,01 € 13,61 € View 13,31 € 12,96 € 12,69 € 11,95 € 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 € 1.296In Stock 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	1.296In Stock	39,02 € 36,52 € 33,18 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: 4,43 € 40.982In 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	40.982In Stock	4,43 € 3,65 € 3,41 € 3,29 € View 3,01 € 2,92 € 2,88 € 2,86 €	Min.: 1 Mult.: 1
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
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: 18,10 € 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	18,10 € 16,13 € 15,41 € 14,88 € View 13,06 € 12,86 € Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: 8,39 € 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	8,39 € 7,77 € 7,50 € 7,31 € View 7,04 € 6,85 € 6,19 €	Min.: 1 Mult.: 1
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
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: 2,63 € 1.570In Stock 500Expected 1/13/2027 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 1/13/2027	2,63 € 2,48 € 2,39 € 2,32 € View 2,25 € 2,17 € 2,05 € 1,97 € 1,94 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: 23,27 € 204In 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	204In Stock	23,27 € 22,33 € 21,53 € 20,85 € View 18,94 € 18,78 € 18,77 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330G IXYS Integrated Circuits 1: 3,36 € 439In Stock End of Life	Mfr. Part No. CPC1330G Mouser Part No 849-CPC1330G 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	439In Stock	3,36 € 2,53 € 2,50 € 2,12 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD LCA125 IXYS Integrated Circuits 1: 6,14 € 160In Stock End of Life	Mfr. Part No. LCA125 Mouser Part No 849-LCA125 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	160In Stock	6,14 € 4,68 € 4,48 € 4,34 € 4,33 €	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972G IXYS Integrated Circuits 1: 2,59 € 424In Stock End of Life	Mfr. Part No. CPC1972G Mouser Part No 849-CPC1972G 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	424In Stock	2,59 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006N IXYS Integrated Circuits 1: 1,08 € 117.504In Stock End of Life	Mfr. Part No. CPC1006N Mouser Part No 849-CPC1006N 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	117.504In Stock	1,08 € 0,972 € 0,929 € 0,894 € View 0,857 € 0,821 € 0,708 € 0,684 € 0,642 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: 2,73 € 193.019In 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	193.019In Stock	2,73 € 2,43 € 2,26 € 2,18 € View 2,11 € 2,06 € 2,00 € 1,94 € 1,93 €	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: 2,87 € 8.583In 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	8.583In Stock	Cut Tape 2,87 € 2,56 € 2,44 € 2,33 € View Reel 1,94 € 2,26 € 2,16 € 2,08 € 2,01 € 1,94 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GRTR IXYS Integrated Circuits 1: 3,58 € 9.676In Stock End of Life	Mfr. Part No. CPC1390GRTR Mouser Part No 849-CPC1390GRTR 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	9.676In Stock	Cut Tape 3,58 € 3,20 € 3,05 € 2,94 € Reel 2,59 € View 2,83 € 2,70 € 2,61 € 2,51 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1988J IXYS Integrated Circuits 1: 34,74 € 583In Stock End of Life	Mfr. Part No. CPC1988J Mouser Part No 849-CPC1988J 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	583In Stock	34,74 € 33,34 € 31,83 € 30,74 € View 29,68 € 28,19 € Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110STR IXYS Integrated Circuits 1: 7,55 € 7.758In 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	7.758In Stock	Cut Tape 7,55 € 6,73 € 6,42 € 6,21 € Reel 4,98 € View 5,99 € 5,70 € 5,50 € 4,87 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710S IXYS Integrated Circuits 1: 16,63 € 4.888In Stock End of Life	Mfr. Part No. LAA710S Mouser Part No 849-LAA710S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4.888In Stock	16,63 € 14,82 € 14,16 € 13,66 € View 13,19 € 12,53 € 12,04 € Quote	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay CPC1976Y IXYS Integrated Circuits 1: 6,65 € 6.189In Stock 425On 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	6.189In Stock 425On Order On Order Ship Dates Mfr. No: CPC1976Y Stock: 6.189 Can Dispatch Immediately On Order: 125 Expected 11/18/2026 300 Expected 1/8/2027 Factory Lead Time: 23 Weeks	6,65 € 5,47 € 4,76 € 4,51 €	Min.: 1 Mult.: 1