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 DPST-NO/NO 8PIN DIP PAA140 IXYS Integrated Circuits 1: 85,12 kr. 2.008In Stock	Mfr. Part No. PAA140 Mouser Part No 849-PAA140	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	2.008In Stock	85,12 kr. 77,66 kr. 74,75 kr. 72,06 kr. View 69,15 kr. 66,69 kr. 65,05 kr. 64,60 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: 20,37 kr. 203.858In Stock End of Life	Mfr. Part No. CPC1014N Mouser Part No 849-CPC1014N 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	203.858In Stock	20,37 kr. 18,13 kr. 16,86 kr. 16,26 kr. View 15,74 kr. 15,37 kr. 14,92 kr. 14,47 kr.	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: 23,35 kr. 11.703In Stock End of Life	Mfr. Part No. CPC1330GRTR Mouser Part No 849-CPC1330GRTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	11.703In Stock	Cut Tape 23,35 kr. 20,89 kr. 19,92 kr. 18,95 kr. Reel 14,92 kr. View 18,35 kr. 17,53 kr. 16,93 kr. 14,77 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: 141,89 kr. 7.194In Stock 7.550Expected 13/01/2027 End of Life	Mfr. Part No. CPC1918J Mouser Part No 849-CPC1918J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7.194In Stock 7.550Expected 13/01/2027	141,89 kr. 127,64 kr. 110,18 kr. 106,16 kr. View 103,40 kr. 100,04 kr. 97,50 kr. Quote	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: 19,47 kr. 22.193In Stock End of Life	Mfr. Part No. CPC1016NTR Mouser Part No 849-CPC1016NTR 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	22.193In Stock	Cut Tape 19,47 kr. 17,38 kr. 16,34 kr. 15,82 kr. Reel 12,16 kr. View 15,29 kr. 14,55 kr. 14,10 kr. 12,16 kr. 11,71 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: 33,05 kr. 42.444In Stock End of Life	Mfr. Part No. CPC1018N Mouser Part No 849-CPC1018N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST NO Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	42.444In Stock	33,05 kr. 27,15 kr. 25,36 kr. 24,54 kr. View 22,45 kr. 21,78 kr. 21,41 kr. 21,04 kr.	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: 21,41 kr. 9.043In Stock End of Life	Mfr. Part No. CPC1035NTR Mouser Part No 849-CPC1035NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9.043In Stock	Cut Tape 21,41 kr. 19,10 kr. 18,13 kr. 17,38 kr. View Reel 13,06 kr. 16,79 kr. 16,04 kr. 15,52 kr. 14,92 kr. 13,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: 22,45 kr. 27.869In Stock End of Life	Mfr. Part No. CPC1035N Mouser Part No 849-CPC1035N 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	27.869In Stock	22,45 kr. 17,98 kr. 16,79 kr. 15,14 kr. View 14,77 kr. 14,25 kr. 13,80 kr. 13,50 kr.	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110STR IXYS Integrated Circuits 1: 56,32 kr. 10.858In Stock End of Life	Mfr. Part No. LAA110STR Mouser Part No 849-LAA110STR 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	10.858In Stock	Cut Tape 56,32 kr. 50,21 kr. 47,89 kr. 46,33 kr. Reel 32,82 kr. View 44,69 kr. 42,37 kr. 40,88 kr. 32,75 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA132 IXYS Integrated Circuits 1: 102,43 kr. 269In Stock	Mfr. Part No. PAA132 Mouser Part No 849-PAA132	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	269In Stock	102,43 kr. 91,24 kr. 87,13 kr. 74,30 kr. 71,02 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132STR IXYS Integrated Circuits 1: 103,10 kr. 1.188In Stock	Mfr. Part No. PAA132STR Mouser Part No 849-PAA132STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.188In Stock	Cut Tape 103,10 kr. 91,68 kr. 87,06 kr. 82,51 kr. View Reel 65,95 kr. 77,88 kr. 73,11 kr. 70,65 kr. 65,95 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA712 IXYS Integrated Circuits 1: 71,24 kr. 848In Stock	Mfr. Part No. LCA712 Mouser Part No 849-LCA712	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	848In Stock	71,24 kr. 63,48 kr. 60,65 kr. 52,00 kr. 49,39 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110STR IXYS Integrated Circuits 1: 84,07 kr. 1.400In Stock	Mfr. Part No. PAA110STR Mouser Part No 849-PAA110STR	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	1.400In Stock	Cut Tape 84,07 kr. 74,97 kr. 71,62 kr. 69,15 kr. View Reel 57,74 kr. 66,32 kr. 63,04 kr. 60,87 kr. 57,74 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110S IXYS Integrated Circuits 1: 88,10 kr. 241In Stock	Mfr. Part No. PAA110S Mouser Part No 849-PAA110S	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	241In Stock	88,10 kr. 78,48 kr. 75,72 kr. 60,72 kr. Quote Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132S IXYS Integrated Circuits 1: 102,43 kr. 1.240In Stock	Mfr. Part No. PAA132S Mouser Part No 849-PAA132S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.240In Stock	102,43 kr. 91,24 kr. 87,13 kr. 75,87 kr. View 73,41 kr. 69,08 kr.	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010N IXYS Integrated Circuits 1: 26,26 kr. 3.837In Stock End of Life	Mfr. Part No. CPC1010N Mouser Part No 849-CPC1010N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V, 1-Form-A SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3.837In Stock	26,26 kr. 23,42 kr. 22,31 kr. 21,41 kr. View 20,59 kr. 19,62 kr. 18,20 kr.	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: 237,38 kr. 160In Stock End of Life	Mfr. Part No. CPC1986J Mouser Part No 849-CPC1986J 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	160In Stock	237,38 kr. 212,61 kr. 212,39 kr. 201,72 kr. 175,76 kr.	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: 135,03 kr. 200In Stock End of Life	Mfr. Part No. CPC1908J Mouser Part No 849-CPC1908J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST i4-PAC 60V Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	200In Stock	135,03 kr. 120,33 kr. 114,96 kr. 111,00 kr. View 97,43 kr. 96,01 kr. Quote	Min.: 1 Mult.: 1	PCB Mount	ISOPLUS264	MOSFET
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: 67,89 kr. 611In Stock End of Life	Mfr. Part No. LAA127 Mouser Part No 849-LAA127 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST 1 Form A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	611In Stock	67,89 kr. 61,92 kr. 59,46 kr. 57,52 kr. View 55,20 kr. 53,41 kr. 50,65 kr.	Min.: 1 Mult.: 1	PCB Mount	DIP-8	MOSFET
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: 133,98 kr. 186In Stock End of Life	Mfr. Part No. CPC1777J Mouser Part No 849-CPC1777J 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	186In Stock	133,98 kr. 119,36 kr. 103,77 kr. 100,34 kr. View 98,62 kr. 97,73 kr. Quote	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP LAA110S IXYS Integrated Circuits 1: 52,74 kr. 1.865In Stock 100Expected 05/04/2027 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 05/04/2027	52,74 kr. 49,16 kr. 46,03 kr. 44,46 kr. View 43,12 kr. 41,55 kr.	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GSTR IXYS Integrated Circuits 1: 17,98 kr. 3.553In Stock End of Life	Mfr. Part No. CPC1972GSTR Mouser Part No 849-CPC1972GSTR 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	3.553In Stock	Cut Tape 17,98 kr. 14,77 kr. 13,58 kr. 12,46 kr. Reel 11,19 kr. View 10,97 kr. Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	SMD/SMT
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: 41,85 kr. 978In Stock End of Life	Mfr. Part No. CPC1593GS Mouser Part No 849-CPC1593GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	978In Stock	41,85 kr. 37,30 kr. 35,58 kr. 31,26 kr. View 29,99 kr. 28,87 kr. 27,90 kr. 27,45 kr.	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143S IXYS Integrated Circuits 1: 41,78 kr. 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	41,78 kr. 38,94 kr. 36,40 kr. 35,06 kr. View 33,72 kr. 32,60 kr. 31,93 kr. 31,48 kr. 31,41 kr.	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: 56,17 kr. 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	56,17 kr. 50,13 kr. 47,89 kr. 39,39 kr. View 35,96 kr. 35,44 kr. 35,21 kr.	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET

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

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