Optocouplers/Photocouplers

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Optocouplers/Photocouplers

List Images

Results: 277

Applied Filters:

Mounting Style

Package/Case

Number of Channels

Output Type

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

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 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	PCB Mount	DIP-6	MOSFET
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	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1779J IXYS Integrated Circuits 1: 23,68 € 100On Order End of Life	Mfr. Part No. CPC1779J Mouser Part No 849-CPC1779J 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	100On Order	23,68 € 21,36 € 20,31 € 19,45 €	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount SPST-NO 4PIN SIP CPC1906Y IXYS Integrated Circuits 1: 10,76 € 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	10,76 € 9,59 € 9,13 € 8,84 € View 8,52 € 7,46 €	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch CPC1943GS IXYS Integrated Circuits 1: 11,72 € 250Expected 30/11/2026 End of Life	Mfr. Part No. CPC1943GS Mouser Part No 849-CPC1943GS End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	250Expected 30/11/2026	11,72 € 9,16 € 8,20 € 7,91 €	Min.: 1 Mult.: 1	SMD/SMT	SMD-DIP-6
Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A CPC2907B IXYS Integrated Circuits 1: 18,02 € 785On Order End of Life	Mfr. Part No. CPC2907B Mouser Part No 849-CPC2907B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual Power Relay 60V, 1-Form-A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	785On Order On Order Ship Dates Mfr. No: CPC2907B Stock: 0 On Order: 435 Expected 03/11/2026 350 Expected 19/07/2027 Factory Lead Time: 39 Weeks	18,02 € 16,03 € 14,72 € 14,22 € 13,73 €	Min.: 1 Mult.: 1	PCB Mount	SOIC-8	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110LSTR IXYS Integrated Circuits 1: 3,76 € 2 000Expected 14/01/2027 End of Life	Mfr. Part No. LCA110LSTR Mouser Part No 849-LCA110LSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2 000Expected 14/01/2027	Cut Tape 3,76 € 3,43 € 3,16 € 3,04 € View Reel 2,61 € 2,93 € 2,80 € 2,70 € 2,61 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA182S IXYS Integrated Circuits 1: 4,64 € 499On Order End of Life	Mfr. Part No. LCA182S Mouser Part No 849-LCA182S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	499On Order On Order Ship Dates Mfr. No: LCA182S Stock: 0 On Order: 249 Expected 19/05/2027 250 Expected 09/06/2027 Factory Lead Time: 36 Weeks	4,64 € 4,19 € 3,87 € 3,67 € View 3,48 € 3,33 € 3,07 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SPST-NO 6PIN SMD PLA140S IXYS Integrated Circuits 1: 8,14 € 200Expected 15/03/2027	Mfr. Part No. PLA140S Mouser Part No 849-PLA140S	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6PIN SMD Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	200Expected 15/03/2027	8,14 € 7,47 € 6,89 € 6,60 € View 6,35 € 6,08 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1225N IXYS Integrated Circuits 1: 3,25 € 501Expected 19/02/2027 End of Life	Mfr. Part No. CPC1225N Mouser Part No 849-CPC1225N 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	501Expected 19/02/2027	3,25 € 3,04 € 2,71 € 2,57 € View 2,49 € 2,38 € 2,30 €	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay CPC1926Y IXYS Integrated Circuits 1: 9,72 € 188Expected 23/11/2026 End of Life	Mfr. Part No. CPC1926Y Mouser Part No 849-CPC1926Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	188Expected 23/11/2026	9,72 € 8,89 € 8,01 € 7,68 € 7,37 €	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A, 60V, 1A LCA710RTR IXYS Integrated Circuits 1 000: 5,56 € Non-Stocked Lead-Time 35 Weeks	Mfr. Part No. LCA710RTR Mouser Part No 849-LCA710RTR	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	Non-Stocked Lead-Time 35 Weeks	Reel 5,56 €	Min.: 1 000 Mult.: 1 000 : 1 000	PCB Mount		MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP OAA160 IXYS Integrated Circuits 1: 10,46 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. OAA160 Mouser Part No 849-OAA160	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	Non-Stocked Lead-Time 36 Weeks	10,46 € 9,31 € 8,90 € 8,59 € View 8,30 € 7,92 €	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR OAA160STR IXYS Integrated Circuits 1: 10,07 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. OAA160STR Mouser Part No 849-OAA160STR	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	Non-Stocked Lead-Time 36 Weeks	Cut Tape 10,07 € 8,98 € 8,57 € 8,28 € Reel 7,12 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay OMA160STR IXYS Integrated Circuits 1 000: 3,90 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. OMA160STR Mouser Part No 849-OMA160STR	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	Non-Stocked Lead-Time 36 Weeks	Reel 3,90 €	Min.: 1 000 Mult.: 1 000 : 1 000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110L IXYS Integrated Circuits 100: 11,27 € Non-Stocked Lead-Time 35 Weeks	Mfr. Part No. PAA110L Mouser Part No 849-PAA110L	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	Non-Stocked Lead-Time 35 Weeks	11,27 €	Min.: 100 Mult.: 50	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110LS IXYS Integrated Circuits 1: 11,89 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA110LS Mouser Part No 849-PAA110LS	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	Non-Stocked Lead-Time 36 Weeks	11,89 € 11,12 € 10,60 € 10,04 € 8,95 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110LSTR IXYS Integrated Circuits 1 000: 8,23 € Non-Stocked Lead-Time 35 Weeks	Mfr. Part No. PAA110LSTR Mouser Part No 849-PAA110LSTR	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	Non-Stocked Lead-Time 35 Weeks	Reel 8,23 €	Min.: 1 000 Mult.: 1 000 : 1 000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount DUAL POLE CIRCUITS PAA127 IXYS Integrated Circuits 1: 6,35 € Non-Stocked	Mfr. Part No. PAA127 Mouser Part No 849-PAA127	IXYS Integrated Circuits	Solid State Relays - PCB Mount DUAL POLE CIRCUITS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	6,35 € 5,95 € 5,29 € 5,02 € View 4,76 € 4,46 € 4,31 € 4,16 €	Min.: 1 Mult.: 1	PCB Mount		MOSFET
Solid State Relays - PCB Mount Dual Single-Pole 1-Form-A, 280V,200mA PAA127STR IXYS Integrated Circuits 1 000: 3,98 € Non-Stocked	Mfr. Part No. PAA127STR Mouser Part No 849-PAA127STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual Single-Pole 1-Form-A, 280V,200mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	Reel 3,98 €	Min.: 1 000 Mult.: 1 000 : 1 000
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA140L IXYS Integrated Circuits 100: 10,33 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA140L Mouser Part No 849-PAA140L	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	Non-Stocked Lead-Time 36 Weeks	10,33 €	Min.: 100 Mult.: 50	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Single Pole Dual 1-Form-A Relay PAA140LSTR IXYS Integrated Circuits 1 000: 8,98 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA140LSTR Mouser Part No 849-PAA140LSTR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole Dual 1-Form-A Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel 8,98 €	Min.: 1 000 Mult.: 1 000 : 1 000
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA190 IXYS Integrated Circuits 100: 9,03 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA190 Mouser Part No 849-PAA190	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	Non-Stocked Lead-Time 36 Weeks	9,03 €	Min.: 100 Mult.: 50	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA190S IXYS Integrated Circuits 100: 9,03 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA190S Mouser Part No 849-PAA190S	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	Non-Stocked Lead-Time 36 Weeks	9,03 €	Min.: 100 Mult.: 50	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA190STR IXYS Integrated Circuits 1 000: 7,75 € Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA190STR Mouser Part No 849-PAA190STR	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	Non-Stocked Lead-Time 36 Weeks	Reel 7,75 €	Min.: 1 000 Mult.: 1 000 : 1 000	PCB Mount	SMD DIP-8	MOSFET

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

Types of Optocouplers/Photocouplers

Applied Filters:

Customer Service Office

Company

Resources

Support