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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 30V 2000 mA Solid State Relay LCA717S IXYS Integrated Circuits 1: € 9,39 2 080In Stock	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 080In Stock	€ 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 1-Form 30V 2000 mA Solid State Relay LCA717STR IXYS Integrated Circuits 1: € 8,20 532In Stock 2 000Expected 15/07/2027	Mfr. Part No. LCA717STR Mouser Part No 849-LCA717STR	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	532In Stock 2 000Expected 15/07/2027	Cut Tape € 8,20 € 7,31 € 6,98 € 6,74 View Reel € 5,73 € 6,51 € 6,18 € 6,04 € 5,73 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR PAA150S IXYS Integrated Circuits 1: € 12,51 236In Stock	Mfr. Part No. PAA150S Mouser Part No 849-PAA150S	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	236In Stock	€ 12,51 € 11,12 € 10,57 € 10,01 View € 9,44 € 9,23 € 8,15 € 8,08	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150 IXYS Integrated Circuits 1: € 7,48 835In Stock	Mfr. Part No. PLA150 Mouser Part No 849-PLA150	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	835In Stock	€ 7,48 € 6,67 € 6,37 € 6,15 View € 5,93 € 5,64 € 5,43 € 4,95 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA PLA150STR IXYS Integrated Circuits 1: € 7,78 1 089In Stock	Mfr. Part No. PLA150STR Mouser Part No 849-PLA150STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 089In Stock	Cut Tape € 7,78 € 7,34 Reel € 5,19 € 4,58 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA PLA160STR IXYS Integrated Circuits 1: € 7,53 754In Stock	Mfr. Part No. PLA160STR Mouser Part No 849-PLA160STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	754In Stock	Cut Tape € 7,53 € 6,72 € 6,41 € 6,14 View Reel € 5,14 € 5,87 € 5,53 € 5,34 € 5,14 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount Single Pole 800V, 100mA SSR PLA171P IXYS Integrated Circuits 1: € 6,15 971In Stock	Mfr. Part No. PLA171P Mouser Part No 849-PLA171P	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole 800V, 100mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	971In Stock	€ 6,15 € 5,64 € 5,43 € 5,23 View € 5,05 € 4,94	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA191S IXYS Integrated Circuits 1: € 8,18 731In Stock	Mfr. Part No. PLA191S Mouser Part No 849-PLA191S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	731In Stock	€ 8,18 € 7,28 € 7,05 € 6,68 View € 6,20 € 5,93 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA193STR IXYS Integrated Circuits 1: € 5,60 1 719In Stock 2 000Expected 13/11/2026	Mfr. Part No. PLA193STR Mouser Part No 849-PLA193STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 719In Stock 2 000Expected 13/11/2026	Cut Tape € 5,60 € 5,39 Reel € 3,81 € 3,63 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay IXYS Integrated Circuits CPC1965G CPC1965G IXYS Integrated Circuits 1: € 7,28 11 329In Stock 10 775Expected 26/08/2027 End of Life	Mfr. Part No. CPC1965G Mouser Part No 849-CPC1965G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	11 329In Stock 10 775Expected 26/08/2027	€ 7,28 € 6,49 € 5,84 € 5,63 View € 5,43 € 5,02 € 4,93 € 4,82 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS CPC1004N IXYS Integrated Circuits 1: € 3,15 5 000In Stock End of Life	Mfr. Part No. CPC1004N Mouser Part No 849-CPC1004N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	5 000In Stock	€ 3,15 € 2,81 € 2,66 € 2,56 View € 2,49 € 2,36 € 2,29 € 2,21	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016N IXYS Integrated Circuits 1: € 2,76 1 067In Stock End of Life	Mfr. Part No. CPC1016N Mouser Part No 849-CPC1016N 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	1 067In Stock	€ 2,76 € 2,59 € 2,30 € 2,22 View € 2,14 € 2,04 € 1,97 € 1,90	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay CPC1017NTR IXYS Integrated Circuits 1: € 1,65 3 830In Stock 136 000On Order End of Life	Mfr. Part No. CPC1017NTR Mouser Part No 849-CPC1017NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3 830In Stock 136 000On Order On Order Ship Dates Mfr. No: CPC1017NTR Stock: 3 830 Can Dispatch Immediately On Order: 68 000 Expected 06/11/2026 68 000 Expected 17/06/2027 Factory Lead Time: 30 Weeks	Cut Tape € 1,65 € 1,52 € 1,40 € 1,36 View Reel € 1,17 € 1,31 € 1,24 € 1,20 € 1,17 € 1,17 MouseReel Available	Min.: 1 Mult.: 1 : 2 000
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019N IXYS Integrated Circuits 1: € 3,67 4 926In Stock 4 100Expected 02/06/2027 End of Life	Mfr. Part No. CPC1019N Mouser Part No 849-CPC1019N 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	4 926In Stock 4 100Expected 02/06/2027	€ 3,67 € 3,31 € 3,10 € 2,96 View € 2,85 € 2,71 € 2,62 € 2,54 € 2,53	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393G IXYS Integrated Circuits 1: € 4,09 1 005In Stock End of Life	Mfr. Part No. CPC1393G Mouser Part No 849-CPC1393G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 005In Stock	€ 4,09 € 3,65 € 3,48 € 3,36 View € 3,23 € 3,06 € 2,99 € 2,86 € 2,73	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394GRTR IXYS Integrated Circuits 1: € 3,60 3 657In Stock 3 000Expected 30/07/2027 End of Life	Mfr. Part No. CPC1394GRTR Mouser Part No 849-CPC1394GRTR 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	3 657In Stock 3 000Expected 30/07/2027	Cut Tape € 3,60 € 3,32 € 3,21 € 3,09 Reel € 2,80 View € 2,95 € 2,88 € 2,78 MouseReel Available	Min.: 1 Mult.: 1 : 1 000
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GS IXYS Integrated Circuits 1: € 5,31 448In Stock 2 950Expected 19/04/2027 End of Life	Mfr. Part No. CPC1540GS Mouser Part No 849-CPC1540GS 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	448In Stock 2 950Expected 19/04/2027	€ 5,31 € 4,98 € 4,43 € 4,21 View € 3,98 € 3,78 € 3,66	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation CPC1706Y IXYS Integrated Circuits 1: € 6,34 1 458In Stock 8 875On Order End of Life	Mfr. Part No. CPC1706Y Mouser Part No 849-CPC1706Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1 458In Stock 8 875On Order On Order Ship Dates Mfr. No: CPC1706Y Stock: 1 458 Can Dispatch Immediately On Order: 5 100 Expected 10/05/2027 3 775 Expected 23/07/2027 Factory Lead Time: 39 Weeks	€ 6,34 € 5,80 € 5,38 € 5,02 View € 4,76 € 4,29	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1727J IXYS Integrated Circuits 1: € 19,77 344In Stock End of Life	Mfr. Part No. CPC1727J Mouser Part No 849-CPC1727J 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	344In Stock	€ 19,77 € 18,92 € 16,07 € 14,06 Quote Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay CPC1909J IXYS Integrated Circuits 1: € 18,07 479In Stock 325Expected 23/07/2027 End of Life	Mfr. Part No. CPC1909J Mouser Part No 849-CPC1909J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V Single Pole 60V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	479In Stock 325Expected 23/07/2027	€ 18,07 € 16,62 € 15,74 € 14,87 View € 14,33 € 13,68 € 13,21	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay CPC1945G IXYS Integrated Circuits 1: € 8,20 105In Stock End of Life	Mfr. Part No. CPC1945G Mouser Part No 849-CPC1945G End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V, 1mA AC Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	105In Stock	€ 8,20 € 6,35 € 5,13 € 4,71 View € 4,48 € 4,38	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay CPC1981Y IXYS Integrated Circuits 1: € 7,07 394In Stock 2 925On Order End of Life	Mfr. Part No. CPC1981Y Mouser Part No 849-CPC1981Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1000V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	394In Stock 2 925On Order On Order Ship Dates Mfr. No: CPC1981Y Stock: 394 Can Dispatch Immediately On Order: 1 500 Expected 08/02/2027 1 425 Expected 12/02/2027 Factory Lead Time: 54 Weeks	€ 7,07 € 6,47 € 5,94 € 5,68 View € 5,44 € 4,75	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 120MA DPST 8-DIP LAA110 IXYS Integrated Circuits 1: € 8,29 956In Stock 5 400On Order End of Life	Mfr. Part No. LAA110 Mouser Part No 849-LAA110 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 120MA DPST 8-DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	956In Stock 5 400On Order On Order Ship Dates Mfr. No: LAA110 Stock: 956 Can Dispatch Immediately On Order: 2 800 Expected 15/07/2027 1 050 Expected 19/07/2027 1 550 Expected 23/07/2027 Factory Lead Time: 36 Weeks	€ 8,29 € 7,60 € 6,97 € 6,66 View € 6,36 € 5,99	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110L IXYS Integrated Circuits 1: € 8,08 94In Stock End of Life	Mfr. Part No. LAA110L Mouser Part No 849-LAA110L 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	94In Stock	€ 8,08 € 7,21 € 6,88 € 6,64 View € 6,07 € 5,82 € 5,64 € 5,51 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP LAA110S IXYS Integrated Circuits 1: € 7,07 1 865In Stock 100Expected 12/07/2027 End of Life	Mfr. Part No. LAA110S Mouser Part No 849-LAA110S End of Life	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	1 865In Stock 100Expected 12/07/2027	€ 7,07 € 6,59 € 6,17 € 5,96 View € 5,78 € 5,57	Min.: 1 Mult.: 1