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 800V Normally-Open 6-Pin OptoMOS Relay PLA172P IXYS Integrated Circuits 1: 8,73 € 122In Stock	Mfr. Part No. PLA172P Mouser Part No 849-PLA172P	IXYS Integrated Circuits	Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay Learn More about IXYS Integrated Circuits ixys pla172p relays	Datasheet	122In Stock	8,73 € 8,37 € 7,70 € 7,06 € View 6,83 € 6,15 € 6,00 € 5,86 € Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR OAA160S IXYS Integrated Circuits 1: 9,22 € 167In Stock	Mfr. Part No. OAA160S Mouser Part No 849-OAA160S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	167In Stock	9,22 € 8,41 € 8,08 € 7,81 € View 7,71 € 7,09 € 6,90 € Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA191 IXYS Integrated Circuits 1: 10,69 € 90In Stock	Mfr. Part No. PAA191 Mouser Part No 849-PAA191	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	90In Stock	10,69 € 9,78 € 9,43 € 8,88 € View 8,56 € 8,40 € 8,30 € 8,27 € Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143S IXYS Integrated Circuits 1: 5,60 € 244In Stock	Mfr. Part No. PLA143S Mouser Part No 849-PLA143S	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	244In Stock	5,60 € 5,22 € 4,88 € 4,70 € View 4,52 € 4,37 € 4,28 € 4,22 € 4,21 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150S IXYS Integrated Circuits 1: 7,53 € 137In Stock	Mfr. Part No. PLA150S Mouser Part No 849-PLA150S	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	137In Stock	7,53 € 6,72 € 6,42 € 5,28 € View 4,82 € 4,75 € 4,72 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA160 IXYS Integrated Circuits 1: 6,31 € 213In Stock	Mfr. Part No. PLA160 Mouser Part No 849-PLA160	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6PIN DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	213In Stock	6,31 € 6,02 € 5,94 € 5,04 € View 4,89 € 4,82 € 4,76 €	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
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
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GS IXYS Integrated Circuits 1: 2,52 € 489In Stock End of Life	Mfr. Part No. CPC1972GS Mouser Part No 849-CPC1972GS 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	489In Stock	2,52 € 2,07 € 1,90 € 1,69 € View 1,61 € 1,60 € 1,55 € Quote	Min.: 1 Mult.: 1	SMD/SMT
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 € 5,06 € 4,73 € 4,56 € View 4,38 € 4,34 €	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143STR IXYS Integrated Circuits 1: 6,51 € 318In Stock	Mfr. Part No. PLA143STR Mouser Part No 849-PLA143STR	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	318In Stock	Cut Tape 6,51 € 6,11 € 5,43 € 5,15 € Reel 3,90 € View 4,88 € 4,58 € 4,42 € 3,89 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA193S IXYS Integrated Circuits 1: 5,53 € 294In Stock	Mfr. Part No. PLA193S Mouser Part No 849-PLA193S	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	294In Stock	5,53 € 4,93 € 4,70 € 4,54 € View 4,38 € 4,02 € 3,98 € 3,95 € 3,93 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS CPC1004N IXYS Integrated Circuits 1: 3,15 € 12 100In 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	12 100In Stock	3,15 € 2,81 € 2,66 € 2,56 € View 2,49 € 2,36 € 2,29 € 2,21 €	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006N IXYS Integrated Circuits 1: 1,08 € 138 291In 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	138 291In Stock	1,08 € 0,972 € 0,929 € 0,894 € View 0,857 € 0,821 € 0,708 € 0,684 € 0,642 €	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1008N IXYS Integrated Circuits 1: 2,10 € 64 112In Stock End of Life	Mfr. Part No. CPC1008N Mouser Part No 849-CPC1008N 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	64 112In Stock	2,10 € 1,95 € 1,89 € 1,85 € 1,73 €	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019NTR IXYS Integrated Circuits 1: 3,36 € 60 738In 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	60 738In Stock	Cut Tape 3,36 € 2,99 € 2,86 € 2,76 € View Reel 2,29 € 2,67 € 2,55 € 2,46 € 2,37 € 2,29 € MouseReel Available	Min.: 1 Mult.: 1 : 2 000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1025NTR IXYS Integrated Circuits 1: 2,69 € 104 956In Stock End of Life	Mfr. Part No. CPC1025NTR Mouser Part No 849-CPC1025NTR 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	104 956In Stock	Cut Tape 2,69 € 2,52 € 2,24 € 2,17 € Reel 1,86 € View 2,09 € 2,00 € 1,93 € 1,86 € 1,71 € MouseReel Available	Min.: 1 Mult.: 1 : 2 000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GRTR IXYS Integrated Circuits 1: 3,58 € 10 206In 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	10 206In Stock	Cut Tape 3,58 € 3,20 € 3,05 € 2,93 € Reel 2,59 € View 2,83 € 2,70 € 2,61 € 2,49 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP CPC1984Y IXYS Integrated Circuits 1: 14,91 € 4 075In 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	4 075In Stock	14,91 € 13,29 € 12,69 € 12,25 € View 11,80 € 11,17 € 10,79 € 10,78 € Quote	Min.: 1 Mult.: 1	PCB Mount	SIP-4	MOSFET
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	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710S IXYS Integrated Circuits 1: 16,63 € 4 928In 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 928In Stock	16,63 € 14,82 € 14,16 € 13,66 € View 13,19 € 12,52 € 12,09 € Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710STR IXYS Integrated Circuits 1: 16,85 € 3 105In 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 105In Stock	Cut Tape 16,85 € 15,01 € 14,33 € 13,57 € View Reel 11,54 € 12,82 € 12,09 € 11,67 € 11,54 € Quote MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out CPC1966YX6 IXYS Integrated Circuits 1: 11,98 € 2 139In 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	2 139In Stock	11,98 € 10,67 € 10,18 € 9,79 € 9,37 €	Min.: 1 Mult.: 1	PCB Mount	SIP-4	SCR
Solid State Relays - PCB Mount SP AC Solid State Power Switch CPC1998J IXYS Integrated Circuits 1: 18,71 € 3 500In Stock 7 700Expected 15/04/2027	Mfr. Part No. CPC1998J Mouser Part No 849-CPC1998J	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP AC Solid State Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3 500In Stock 7 700Expected 15/04/2027	18,71 € 16,99 € 16,18 € 15,47 € View 14,95 € 14,30 € 13,94 €	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	SCR
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA701S IXYS Integrated Circuits 1: 8,87 € 6 626In Stock	Mfr. Part No. LCA701S Mouser Part No 849-LCA701S	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	6 626In Stock	8,87 € 7,90 € 7,54 € 7,17 € 6,74 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA701STR IXYS Integrated Circuits 1: 8,47 € 2 664In 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 664In 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	PCB Mount		MOSFET

OptoMOS 1-Form-A (SPST-NO) Solid State Relays

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