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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 (IDR) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA710STR IXYS Integrated Circuits 1: Rp184.193,84 4.817In Stock	Mfr. Part No. LCA710STR Mouser Part No 849-LCA710STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4.817In Stock	Cut Tape Rp184.193,84 Rp172.635,86 Rp153.556,02 Rp145.850,70 View Reel Rp117.781,32 Rp138.145,38 Rp126.403,94 Rp122.000,90 Rp117.781,32 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715STR IXYS Integrated Circuits 1: Rp198.320,26 4.158In Stock 5.000Expected 16/06/2027	Mfr. Part No. LCA715STR Mouser Part No 849-LCA715STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4.158In Stock 5.000Expected 16/06/2027	Cut Tape Rp198.320,26 Rp176.671,98 Rp168.783,20 Rp162.912,48 View Reel Rp135.393,48 Rp157.408,68 Rp149.886,82 Rp144.749,94 Rp135.393,48 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006NTR IXYS Integrated Circuits 1: Rp41.828,88 31.777In Stock End of Life	Mfr. Part No. CPC1006NTR Mouser Part No 849-CPC1006NTR 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	31.777In Stock	Cut Tape Rp41.828,88 Rp39.260,44 Rp35.591,24 Rp34.307,02 Reel Rp29.537,06 View Rp33.206,26 Rp31.371,66 Rp30.637,82 Rp29.537,06 Rp27.152,08 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010NTR IXYS Integrated Circuits 1: Rp71.732,86 9.284In Stock 6.000Expected 24/05/2027 End of Life	Mfr. Part No. CPC1010NTR Mouser Part No 849-CPC1010NTR 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	9.284In Stock 6.000Expected 24/05/2027	Cut Tape Rp71.732,86 Rp63.844,08 Rp61.092,18 Rp58.523,74 View Reel Rp50.084,58 Rp56.505,68 Rp53.937,24 Rp52.102,64 Rp50.268,04 Rp50.084,58 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016N IXYS Integrated Circuits 1: Rp58.890,66 1.646In Stock End of Life	Mfr. Part No. CPC1016N Mouser Part No 849-CPC1016N 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	1.646In Stock	Rp58.890,66 Rp55.221,46 Rp49.167,28 Rp47.332,68 View Rp45.681,54 Rp43.480,02 Rp42.012,34 Rp40.544,66	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPNO RELAY CPC1017N IXYS Integrated Circuits 1: Rp15.777,56 189.720In Stock 120.000Expected 12/05/2027 End of Life	Mfr. Part No. CPC1017N Mouser Part No 849-CPC1017N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPNO RELAY Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	189.720In Stock 120.000Expected 12/05/2027	Rp15.777,56 Rp14.108,07 Rp13.576,04 Rp10.842,49 View Rp10.420,53 Rp10.218,72 Rp9.741,73	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A CPC1020N IXYS Integrated Circuits 1: Rp123.285,12 34.160In Stock End of Life	Mfr. Part No. CPC1020N Mouser Part No 849-CPC1020N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	34.160In Stock	Rp123.285,12 Rp110.076,00 Rp104.021,82 Rp99.618,78 View Rp95.215,74 Rp89.711,94 Rp81.456,24 Rp81.272,78	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay CPC1020NTR IXYS Integrated Circuits 1: Rp111.176,76 107.781In Stock End of Life	Mfr. Part No. CPC1020NTR Mouser Part No 849-CPC1020NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	107.781In Stock	Cut Tape Rp111.176,76 Rp99.068,40 Rp94.665,36 Rp91.363,08 View Reel Rp78.153,96 Rp88.244,26 Rp84.024,68 Rp81.089,32 Rp79.254,72 Rp78.153,96 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1025N IXYS Integrated Circuits 1: Rp59.441,04 7.425In Stock 400Expected 30/07/2027 End of Life	Mfr. Part No. CPC1025N Mouser Part No 849-CPC1025N 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	7.425In Stock 400Expected 30/07/2027	Rp59.441,04 Rp53.019,94 Rp50.451,50 Rp48.800,36 View Rp46.782,30 Rp44.580,78 Rp43.113,10 Rp41.645,42	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1230N IXYS Integrated Circuits 1: Rp68.980,96 1.753In Stock End of Life	Mfr. Part No. CPC1230N Mouser Part No 849-CPC1230N 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	1.753In Stock	Rp68.980,96 Rp62.926,78 Rp57.973,36 Rp55.588,38 View Rp53.570,32 Rp51.001,88 Rp49.534,20 Rp45.865,00 Rp44.397,32	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1230NTR IXYS Integrated Circuits 1: Rp63.844,08 2.649In Stock End of Life	Mfr. Part No. CPC1230NTR Mouser Part No 849-CPC1230NTR 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	2.649In Stock	Cut Tape Rp63.844,08 Rp59.807,96 Rp53.203,40 Rp50.818,42 View Reel Rp43.846,94 Rp49.167,28 Rp46.965,76 Rp45.314,62 Rp43.846,94 Rp43.846,94 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1708J IXYS Integrated Circuits 1: Rp353.710,88 527In Stock End of Life	Mfr. Part No. CPC1708J Mouser Part No 849-CPC1708J 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	527In Stock	Rp353.710,88 Rp315.184,28 Rp300.690,94 Rp290.417,18 View Rp280.510,34 Rp265.099,70 Rp255.926,70 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V Single Pole DC Power Relay CPC1726Y IXYS Integrated Circuits 1: Rp153.922,94 572In Stock End of Life	Mfr. Part No. CPC1726Y Mouser Part No 849-CPC1726Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V Single Pole DC Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	572In Stock	Rp153.922,94 Rp144.199,56 Rp128.238,54 Rp121.817,44 View Rp115.396,34 Rp107.691,02 Rp104.021,82 Rp100.352,62	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay CPC1907B IXYS Integrated Circuits 1: Rp220.518,92 12.617In Stock 17.625Expected 12/02/2027 End of Life	Mfr. Part No. CPC1907B Mouser Part No 849-CPC1907B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	12.617In Stock 17.625Expected 12/02/2027	Rp220.518,92 Rp196.302,20 Rp159.610,20 Rp154.289,86 View Rp149.519,90 Rp144.933,40 Rp144.016,10	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: Rp585.604,32 218In Stock End of Life	Mfr. Part No. CPC1927J Mouser Part No 849-CPC1927J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, NO ISOPLUS-264 Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	218In Stock	Rp585.604,32 Rp523.778,30 Rp499.928,50 Rp482.683,26 View Rp464.337,26 Rp409.299,26	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay CPC1968J IXYS Integrated Circuits 1: Rp832.358,02 921In Stock 375Expected 30/11/2026 End of Life	Mfr. Part No. CPC1968J Mouser Part No 849-CPC1968J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	921In Stock 375Expected 30/11/2026	Rp832.358,02 Rp779.154,62 Rp707.788,68	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110LSTR IXYS Integrated Circuits 1: Rp164.747,08 698In Stock End of Life	Mfr. Part No. LAA110LSTR Mouser Part No 849-LAA110LSTR 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	698In Stock	Cut Tape Rp164.747,08 Rp146.951,46 Rp140.346,90 Rp135.393,48 Reel Rp115.396,34 View Rp130.806,98 Rp123.835,50 Rp119.615,92 Rp106.957,18 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110STR IXYS Integrated Circuits 1: Rp74.668,22 11.199In Stock 4.000Expected 13/01/2027 End of Life	Mfr. Part No. LCA110STR Mouser Part No 849-LCA110STR 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	11.199In Stock 4.000Expected 13/01/2027	Cut Tape Rp74.668,22 Rp66.595,98 Rp63.660,62 Rp61.275,64 Reel Rp51.001,88 View Rp59.257,58 Rp56.505,68 Rp54.671,08 Rp49.717,66 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA LCA127STR IXYS Integrated Circuits 1: Rp135.393,48 1.404In Stock End of Life	Mfr. Part No. LCA127STR Mouser Part No 849-LCA127STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.404In Stock	Cut Tape Rp135.393,48 Rp126.954,32 Rp112.827,90 Rp107.140,64 View Reel Rp88.794,64 Rp101.636,84 Rp95.215,74 Rp91.913,46 Rp88.794,64 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 8-Pin Power SOIC CPC1966B IXYS Integrated Circuits 1: Rp180.157,72 1.905In Stock 1.725Expected 24/03/2027	Mfr. Part No. CPC1966B Mouser Part No 849-CPC1966B	IXYS Integrated Circuits	Solid State Relays - PCB Mount 8-Pin Power SOIC Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.905In Stock 1.725Expected 24/03/2027	Rp180.157,72 Rp160.527,50 Rp153.189,10 Rp147.868,76 View Rp142.548,42 Rp133.375,42 Rp130.623,52 Rp127.321,24	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount AC Switch 3A, 600V CPC1966Y IXYS Integrated Circuits 1: Rp157.775,60 394In Stock 7.650Expected 23/11/2026	Mfr. Part No. CPC1966Y Mouser Part No 849-CPC1966Y	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC Switch 3A, 600V Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	394In Stock 7.650Expected 23/11/2026	Rp157.775,60 Rp140.530,36 Rp130.073,14 Rp129.522,76 View Rp125.119,72 Rp118.882,08 Rp114.662,50 Rp110.809,84	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay CPC1976Y IXYS Integrated Circuits 1: Rp141.814,58 946In Stock 5.975On Order	Mfr. Part No. CPC1976Y Mouser Part No 849-CPC1976Y	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	946In Stock 5.975On Order On Order Ship Dates Mfr. No: CPC1976Y Stock: 946 Can Dispatch Immediately On Order: 1.750 Expected 22/10/2026 4.225 Expected 08/01/2027 Factory Lead Time: 23 Weeks	Rp141.814,58 Rp116.680,56 Rp101.636,84 Rp95.032,28 View Rp91.730,00 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA712S IXYS Integrated Circuits 1: Rp210.061,70 283In Stock	Mfr. Part No. LCA712S Mouser Part No 849-LCA712S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	283In Stock	Rp210.061,70 Rp186.762,28 Rp177.405,82 Rp168.049,36 View Rp159.977,12 Rp152.822,18 Rp147.501,84 Rp142.364,96	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715 IXYS Integrated Circuits 1: Rp219.968,54 833In Stock	Mfr. Part No. LCA715 Mouser Part No 849-LCA715	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	833In Stock	Rp219.968,54 Rp195.751,82 Rp186.395,36 Rp178.139,66 View Rp170.801,26 Rp163.095,94 Rp157.592,14 Rp152.088,34 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay LCA717STR IXYS Integrated Circuits 1: Rp190.798,40 812In Stock 2.000Expected 15/07/2027	Mfr. Part No. LCA717STR Mouser Part No 849-LCA717STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	812In Stock 2.000Expected 15/07/2027	Cut Tape Rp190.798,40 Rp178.690,04 Rp158.876,36 Rp150.987,58 View Reel Rp122.000,90 Rp143.098,80 Rp130.806,98 Rp126.403,94 Rp122.000,90 MouseReel Available	Min.: 1 Mult.: 1 : 1.000