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 (DKK) 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 SPST-NO 6PIN DIP PLA193 IXYS Integrated Circuits 1: 41,25 kr. 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	41,25 kr. 36,78 kr. 36,48 kr. 34,61 kr. View 32,67 kr. 29,39 kr. 28,65 kr. 28,20 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay CPC1002N IXYS Integrated Circuits 1: 19,99 kr. 85In Stock 66.700On Order End of Life	Mfr. Part No. CPC1002N Mouser Part No 849-CPC1002N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	85In Stock 66.700On Order On Order Ship Dates Mfr. No: CPC1002N Stock: 85 Can Dispatch Immediately On Order: 46.600 Expected 23/06/2027 20.100 Expected 25/06/2027 Factory Lead Time: 31 Weeks	19,99 kr. 17,83 kr. 17,08 kr. 16,49 kr. View 15,89 kr. 15,07 kr. 14,70 kr.	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay CPC1008NTR IXYS Integrated Circuits 1: 19,47 kr. 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 30/11/2026 52.000 Expected 25/01/2027 Factory Lead Time: 31 Weeks	Cut Tape 19,47 kr. 18,80 kr. Reel 18,80 kr. 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: 20,59 kr. 121In 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	121In Stock 7.900On Order On Order Ship Dates Mfr. No: CPC1009N Stock: 121 Can Dispatch Immediately On Order: 5.000 Expected 15/02/2027 2.900 Expected 24/02/2027 Factory Lead Time: 36 Weeks	20,59 kr. 19,32 kr. 17,16 kr. 16,56 kr. View 15,96 kr. 15,22 kr. 14,70 kr.	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: 19,55 kr. 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 28/12/2026 48.000 Expected 05/05/2027 Factory Lead Time: 29 Weeks	Cut Tape 19,55 kr. 18,80 kr. Reel 18,80 kr. 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: 32,30 kr. 157In Stock 22.000Expected 28/12/2026 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	157In Stock 22.000Expected 28/12/2026	Cut Tape 32,30 kr. 29,54 kr. 27,15 kr. 25,96 kr. View Reel 21,56 kr. 25,07 kr. 23,95 kr. 23,13 kr. 22,31 kr. 21,56 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1030NTR IXYS Integrated Circuits 1: 24,47 kr. 369In Stock 4.000Expected 08/03/2027 End of Life	Mfr. Part No. CPC1030NTR Mouser Part No 849-CPC1030NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	369In Stock 4.000Expected 08/03/2027	Cut Tape 24,47 kr. 22,38 kr. 20,59 kr. 19,92 kr. View Reel 16,71 kr. 19,10 kr. 18,20 kr. 17,68 kr. 17,01 kr. 16,71 kr. 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: 29,62 kr. 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: 600 Expected 31/03/2027 800 Expected 28/07/2027 Factory Lead Time: 36 Weeks	29,62 kr. 26,78 kr. 25,29 kr. 24,39 kr. View 22,01 kr. 21,71 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-4	MOSFET
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GR IXYS Integrated Circuits 1: 31,71 kr. 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	31,71 kr. 29,69 kr. 26,41 kr. 25,07 kr. View 23,95 kr. 22,83 kr. 22,08 kr.	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: 30,29 kr. 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: 4.000 Expected 13/01/2027 10.000 Expected 15/02/2027 Factory Lead Time: 36 Weeks	Cut Tape 30,29 kr. 29,77 kr. 29,09 kr. Reel 20,66 kr. 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: 30,51 kr. 68In Stock 600Expected 13/01/2027 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	68In Stock 600Expected 13/01/2027	30,51 kr. 27,23 kr. 25,96 kr. 25,59 kr. View 24,25 kr. 22,90 kr. 22,38 kr.	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: 45,13 kr. 9In Stock 1.050Expected 19/01/2028 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 19/01/2028	45,13 kr. 41,33 kr. 38,05 kr. 36,33 kr. View 34,76 kr. 30,88 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510GSTR IXYS Integrated Circuits 1: 44,39 kr. 36In Stock 9.000Expected 29/01/2027 End of Life	Mfr. Part No. CPC1510GSTR Mouser Part No 849-CPC1510GSTR 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	36In Stock 9.000Expected 29/01/2027	Cut Tape 44,39 kr. 41,78 kr. 41,70 kr. Reel 35,29 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GSTR IXYS Integrated Circuits 1: 37,97 kr. 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 37,97 kr. 33,94 kr. 31,93 kr. 30,59 kr. Reel 25,96 kr. View 29,32 kr. 27,90 kr. 26,93 kr. 24,25 kr.	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: 50,73 kr. 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 50,73 kr. 47,52 kr. 47,30 kr. Reel 33,42 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount		MOSFET
Solid State Relays - PCB Mount RELAY, SS ICS CPC1561BTR IXYS Integrated Circuits 1: 72,81 kr. 187In Stock 1.000Expected 06/07/2027 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 06/07/2027	Cut Tape 72,81 kr. 68,26 kr. 60,72 kr. 57,67 kr. View Reel 46,55 kr. 54,61 kr. 49,98 kr. 48,27 kr. 46,55 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SOIC-16	MOSFET
Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation CPC1706Y IXYS Integrated Circuits 1: 47,15 kr. 33In 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	33In Stock 8.875On Order On Order Ship Dates Mfr. No: CPC1706Y Stock: 33 Can Dispatch Immediately On Order: 3.775 Expected 23/07/2027 5.100 Expected 26/07/2027 Factory Lead Time: 39 Weeks	47,15 kr. 42,00 kr. 40,13 kr. 38,34 kr. View 36,85 kr. 33,57 kr.	Min.: 1 Mult.: 1	PCB Mount	SIP-4	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1709J IXYS Integrated Circuits 1: 118,32 kr. 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 28/07/2027 1.350 Expected 30/07/2027 1.750 Expected 02/08/2027 Factory Lead Time: 36 Weeks	118,32 kr. 105,19 kr. 97,20 kr. 93,85 kr. 90,56 kr.	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: 121,30 kr. 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	121,30 kr. 108,10 kr. 103,17 kr. 99,67 kr. 96,01 kr.	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: 175,31 kr. 43In Stock 75Expected 10/02/2028 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 10/02/2028	175,31 kr. 163,45 kr. 154,87 kr. 146,29 kr. View 139,05 kr. 132,79 kr. 128,24 kr.	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: 190,90 kr. 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 05/04/2027 300 Expected 01/11/2027 Factory Lead Time: 51 Weeks	190,90 kr. 166,66 kr. 159,20 kr. 153,75 kr.	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: 86,83 kr. 2In 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	2In Stock 1.400On Order On Order Ship Dates Mfr. No: CPC1916Y Stock: 2 Can Dispatch Immediately On Order: 800 Expected 07/12/2026 600 Expected 07/07/2027 Factory Lead Time: 37 Weeks	86,83 kr. 75,87 kr. 72,44 kr. 69,90 kr. 67,81 kr.	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch CPC1963G IXYS Integrated Circuits 1: 77,96 kr. 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	77,96 kr. 69,45 kr. 66,32 kr. 63,93 kr. View 61,62 kr. 58,86 kr. 54,83 kr. 54,31 kr. Quote	Min.: 1 Mult.: 1	PCB Mount		SCR
Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay CPC1967J IXYS Integrated Circuits 1: 262,29 kr. 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 15/02/2027 325 Expected 14/06/2027 Factory Lead Time: 54 Weeks	262,29 kr. 231,86 kr. 220,74 kr. 211,12 kr.	Min.: 1 Mult.: 1	PCB Mount		MOSFET
Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay CPC1973Y IXYS Integrated Circuits 1: 65,80 kr. 131In Stock 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	131In Stock	65,80 kr. 54,09 kr. 48,34 kr. 45,21 kr. View 43,86 kr. Quote	Min.: 1 Mult.: 1	Through Hole	Power SIP

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

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