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 Single-Pole Relay 400V 250mA PLA191 IXYS Integrated Circuits 1: 8,13 € 24In Stock	Mfr. Part No. PLA191 Mouser Part No 849-PLA191	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	24In Stock	8,13 € 7,25 € 6,98 € 6,80 € View 6,04 € 5,96 € 5,92 € Quote	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA PLA192STR IXYS Integrated Circuits 1: 6,19 € 34In Stock 2.000Expected 7/26/2027	Mfr. Part No. PLA192STR Mouser Part No 849-PLA192STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	34In Stock 2.000Expected 7/26/2027	Cut Tape 6,19 € 5,66 € 5,25 € 4,99 € View Reel 4,11 € 4,77 € 4,53 € 4,38 € 4,11 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA193 IXYS Integrated Circuits 1: 5,53 € 51In Stock	Mfr. Part No. PLA193 Mouser Part No 849-PLA193	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	51In Stock	5,53 € 4,93 € 4,89 € 4,64 € View 4,38 € 3,94 € 3,84 € 3,78 €	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay CPC1008NTR IXYS Integrated Circuits 1: 2,61 € 80In Stock 90.000On Order End of Life	Mfr. Part No. CPC1008NTR Mouser Part No 849-CPC1008NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	80In Stock 90.000On Order On Order Ship Dates Mfr. No: CPC1008NTR Stock: 80 Can Dispatch Immediately On Order: 38.000 Expected 11/30/2026 52.000 Expected 2/18/2027 Factory Lead Time: 31 Weeks	Cut Tape 2,61 € 2,52 € Reel 2,52 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR CPC1009N IXYS Integrated Circuits 1: 2,90 € 204In Stock 7.900On Order End of Life	Mfr. Part No. CPC1009N Mouser Part No 849-CPC1009N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	204In Stock 7.900On Order On Order Ship Dates Mfr. No: CPC1009N Stock: 204 Can Dispatch Immediately On Order: 5.000 Expected 2/15/2027 2.900 Expected 3/22/2027 Factory Lead Time: 36 Weeks	2,90 € 2,59 € 2,47 € 2,38 € View 2,30 € 2,11 € 2,00 €	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014NTR IXYS Integrated Circuits 1: 2,62 € 80In Stock 86.000On Order End of Life	Mfr. Part No. CPC1014NTR Mouser Part No 849-CPC1014NTR 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	80In Stock 86.000On Order On Order Ship Dates Mfr. No: CPC1014NTR Stock: 80 Can Dispatch Immediately On Order: 38.000 Expected 1/13/2027 48.000 Expected 4/22/2027 Factory Lead Time: 29 Weeks	Cut Tape 2,62 € 2,52 € Reel 2,52 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay CPC1018NTR IXYS Integrated Circuits 1: 4,33 € 48In Stock 22.000Expected 12/9/2026 End of Life	Mfr. Part No. CPC1018NTR Mouser Part No 849-CPC1018NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	48In Stock 22.000Expected 12/9/2026	Cut Tape 4,33 € 3,96 € 3,64 € 3,48 € View Reel 2,89 € 3,36 € 3,21 € 3,10 € 2,99 € 2,89 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390G IXYS Integrated Circuits 1: 3,97 € 54In Stock 1.400On Order End of Life	Mfr. Part No. CPC1390G Mouser Part No 849-CPC1390G 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	54In Stock 1.400On Order On Order Ship Dates Mfr. No: CPC1390G Stock: 54 Can Dispatch Immediately On Order: 800 Expected 4/5/2027 600 Expected 8/9/2027 Factory Lead Time: 36 Weeks	3,97 € 3,59 € 3,39 € 3,27 € View 2,95 € 2,91 €	Min.: 1 Mult.: 1	PCB Mount	DIP-4	MOSFET
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GR IXYS Integrated Circuits 1: 4,25 € 8In Stock End of Life	Mfr. Part No. CPC1393GR Mouser Part No 849-CPC1393GR 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	8In Stock	4,25 € 3,98 € 3,54 € 3,36 € View 3,21 € 3,06 € 2,96 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GRTR IXYS Integrated Circuits 1: 4,06 € 281In Stock 14.000On Order End of Life	Mfr. Part No. CPC1393GRTR Mouser Part No 849-CPC1393GRTR 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	281In Stock 14.000On Order On Order Ship Dates Mfr. No: CPC1393GRTR Stock: 281 Can Dispatch Immediately On Order: 8.000 Expected 2/1/2027 6.000 Expected 8/9/2027 Factory Lead Time: 36 Weeks	Cut Tape 4,06 € 3,99 € 3,90 € Reel 2,77 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	DIP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394GR IXYS Integrated Circuits 1: 4,09 € 2In Stock 600Expected 1/13/2027 End of Life	Mfr. Part No. CPC1394GR Mouser Part No 849-CPC1394GR 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	2In Stock 600Expected 1/13/2027	4,09 € 3,65 € 3,48 € 3,43 € View 3,25 € 3,07 € 3,00 €	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510G IXYS Integrated Circuits 1: 6,05 € 9In Stock 1.050Expected 1/19/2028 End of Life	Mfr. Part No. CPC1510G Mouser Part No 849-CPC1510G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9In Stock 1.050Expected 1/19/2028	6,05 € 5,54 € 5,10 € 4,87 € View 4,66 € 4,14 €	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GSTR IXYS Integrated Circuits 1: 5,09 € 9In Stock End of Life	Mfr. Part No. CPC1540GSTR Mouser Part No 849-CPC1540GSTR 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	9In Stock	Cut Tape 5,09 € 4,55 € 4,28 € 4,10 € Reel 3,48 € View 3,93 € 3,74 € 3,61 € 3,25 €	Min.: 1 Mult.: 1 : 1.000	PCB Mount		MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay CPC1560GSTR IXYS Integrated Circuits 1: 6,80 € 10In Stock End of Life	Mfr. Part No. CPC1560GSTR Mouser Part No 849-CPC1560GSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	10In Stock	Cut Tape 6,80 € 6,37 € 6,34 € Reel 4,48 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount		MOSFET
Solid State Relays - PCB Mount RELAY, SS ICS CPC1561BTR IXYS Integrated Circuits 1: 9,76 € 187In Stock 1.000Expected 7/6/2027 End of Life	Mfr. Part No. CPC1561BTR Mouser Part No 849-CPC1561BTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY, SS ICS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	187In Stock 1.000Expected 7/6/2027	Cut Tape 9,76 € 9,15 € 8,14 € 7,73 € View Reel 6,24 € 7,32 € 6,70 € 6,47 € 6,24 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SOIC-16	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1709J IXYS Integrated Circuits 1: 15,85 € 13In Stock 9.850On Order End of Life	Mfr. Part No. CPC1709J Mouser Part No 849-CPC1709J 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	13In Stock 9.850On Order On Order Ship Dates Mfr. No: CPC1709J Stock: 13 Can Dispatch Immediately On Order: 6.750 Expected 5/31/2027 1.350 Expected 7/30/2027 1.750 Expected 8/2/2027 Factory Lead Time: 36 Weeks	15,85 € 14,10 € 13,03 € 12,58 € 12,14 €	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1718J IXYS Integrated Circuits 1: 16,26 € 12In Stock End of Life	Mfr. Part No. CPC1718J Mouser Part No 849-CPC1718J 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	12In Stock	16,26 € 14,49 € 13,83 € 13,36 € 12,87 €	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1786J IXYS Integrated Circuits 1: 23,50 € 43In Stock 75Expected 2/10/2028 End of Life	Mfr. Part No. CPC1786J Mouser Part No 849-CPC1786J 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	43In Stock 75Expected 2/10/2028	23,50 € 21,91 € 20,76 € 19,61 € View 18,64 € 17,80 € 17,19 €	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1788J IXYS Integrated Circuits 1: 25,59 € 8In Stock 525On Order End of Life	Mfr. Part No. CPC1788J Mouser Part No 849-CPC1788J 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	8In Stock 525On Order On Order Ship Dates Mfr. No: CPC1788J Stock: 8 Can Dispatch Immediately On Order: 225 Expected 4/5/2027 300 Expected 11/18/2027 Factory Lead Time: 51 Weeks	25,59 € 22,34 € 21,34 € 20,61 €	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay CPC1916Y IXYS Integrated Circuits 1: 11,64 € 16In Stock 1.400On Order End of Life	Mfr. Part No. CPC1916Y Mouser Part No 849-CPC1916Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	16In Stock 1.400On Order On Order Ship Dates Mfr. No: CPC1916Y Stock: 16 Can Dispatch Immediately On Order: 800 Expected 12/21/2026 600 Expected 12/31/2026 Factory Lead Time: 37 Weeks	11,64 € 10,17 € 9,71 € 9,37 € 9,09 €	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch CPC1963G IXYS Integrated Circuits 1: 10,45 € 162In Stock End of Life	Mfr. Part No. CPC1963G Mouser Part No 849-CPC1963G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	162In Stock	10,45 € 9,31 € 8,89 € 8,57 € View 8,26 € 7,89 € 7,35 € 7,28 € Quote	Min.: 1 Mult.: 1	PCB Mount		SCR
Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay CPC1967J IXYS Integrated Circuits 1: 35,16 € 6In Stock 400On Order End of Life	Mfr. Part No. CPC1967J Mouser Part No 849-CPC1967J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6In Stock 400On Order On Order Ship Dates Mfr. No: CPC1967J Stock: 6 Can Dispatch Immediately On Order: 75 Expected 1/13/2027 325 Expected 6/14/2027 Factory Lead Time: 54 Weeks	35,16 € 31,13 € 29,64 € 28,30 €	Min.: 1 Mult.: 1	PCB Mount		MOSFET
Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay CPC1973Y IXYS Integrated Circuits 1: 8,82 € 116In Stock 100Expected 4/1/2027 End of Life	Mfr. Part No. CPC1973Y Mouser Part No 849-CPC1973Y End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	116In Stock 100Expected 4/1/2027	8,82 € 7,25 € 6,48 € 6,06 € View 5,88 € Quote	Min.: 1 Mult.: 1	Through Hole	Power SIP
Solid State Relays - PCB Mount SP-NO SS OptoMOS Power Relay CPC1983B IXYS Integrated Circuits 1: 9,91 € 150In Stock End of Life	Mfr. Part No. CPC1983B Mouser Part No 849-CPC1983B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	150In Stock	9,91 € 9,29 € 8,25 € 7,83 € View 6,79 € 6,54 € 6,43 € 6,37 €	Min.: 1 Mult.: 1	PCB Mount		MOSFET
Solid State Relays - PCB Mount 100V 300mA Double Pole Relay LAA108 IXYS Integrated Circuits 1: 4,58 € 295In Stock End of Life	Mfr. Part No. LAA108 Mouser Part No 849-LAA108 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V 300mA Double Pole Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	295In Stock	4,58 € 4,09 € 3,90 € 3,76 € View 3,61 € 3,45 € 3,33 € 3,10 € 3,09 €	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET