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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 (COP) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out CPC1966YX6 IXYS Integrated Circuits 1: $ 52.367,14 1.939In Stock	Mfr. Part # CPC1966YX6 Mouser Part # 849-CPC1966YX6	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.939In Stock	$ 52.367,14 $ 46.652,99 $ 40.186,98 $ 38.796,04 View $ 37.442,69 $ 36.126,93 $ 35.375,07	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: $ 13.157,57 27.949In Stock End of Life	Mfr. Part # CPC1035N Mouser Part # 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	27.949In Stock	$ 13.157,57 $ 10.789,21 $ 10.112,53 $ 9.247,89 View $ 9.022,33 $ 8.684,00 $ 8.082,51 $ 7.932,14	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710STR IXYS Integrated Circuits 1: $ 69.359,20 3.088In Stock End of Life	Mfr. Part # LAA710STR Mouser Part # 849-LAA710STR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3.088In Stock	Cut Tape $ 69.359,20 $ 61.765,40 $ 58.983,51 $ 56.953,49 View Reel $ 45.374,83 $ 54.998,65 $ 52.442,32 $ 50.637,85 $ 45.374,83 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: $ 13.683,87 10.703In Stock End of Life	Mfr. Part # CPC1330GRTR Mouser Part # 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	10.703In Stock	Cut Tape $ 13.683,87 $ 12.217,75 $ 11.653,85 $ 11.089,95 Reel $ 8.420,85 View $ 10.751,62 $ 10.262,91 $ 9.924,57 $ 8.270,47 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: $ 83.155,85 6.942In Stock 7.550Expected 1/13/2027 End of Life	Mfr. Part # CPC1918J Mouser Part # 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	6.942In Stock 7.550Expected 1/13/2027	$ 83.155,85 $ 74.697,41 $ 61.239,10 $ 59.472,22 View $ 58.194,06 $ 56.652,74 $ 55.487,36 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: $ 11.315,51 22.193In Stock End of Life	Mfr. Part # CPC1016NTR Mouser Part # 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 $ 11.315,51 $ 10.150,13 $ 9.586,23 $ 9.285,49 Reel $ 6.879,53 View $ 8.947,15 $ 8.533,63 $ 8.270,47 $ 6.879,53 $ 6.691,57 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: $ 19.360,43 41.082In Stock End of Life	Mfr. Part # CPC1018N Mouser Part # 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	41.082In Stock	$ 19.360,43 $ 15.939,46 $ 14.924,45 $ 14.398,14 View $ 13.157,57 $ 12.781,64 $ 12.593,68 $ 12.518,49	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: $ 24.510,68 728In Stock End of Life	Mfr. Part # CPC1593GS Mouser Part # 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	728In Stock	$ 24.510,68 $ 21.841,57 $ 20.864,15 $ 18.683,75 View $ 17.969,48 $ 17.292,81 $ 16.352,98 $ 16.127,42	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: $ 78.494,31 186In Stock End of Life	Mfr. Part # CPC1777J Mouser Part # 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	$ 78.494,31 $ 69.923,10 $ 60.787,98 $ 58.795,55 View $ 57.780,54 $ 57.103,86 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: $ 79.133,40 200In Stock End of Life	Mfr. Part # CPC1908J Mouser Part # 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	$ 79.133,40 $ 70.524,58 $ 67.366,77 $ 65.036,00 View $ 57.103,86 $ 56.201,63 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: $ 36.690,83 611In Stock End of Life	Mfr. Part # LAA127 Mouser Part # 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	$ 36.690,83 $ 33.946,53 $ 32.781,15 $ 31.954,10 View $ 30.788,72 $ 29.924,08 $ 26.127,18	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: $ 139.094,33 160In Stock End of Life	Mfr. Part # CPC1986J Mouser Part # 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	$ 139.094,33 $ 124.658,59 $ 124.433,04 $ 118.192,59 $ 104.132,78	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: $ 101.726,83 204In Stock End of Life	Mfr. Part # CPC1927J Mouser Part # 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	204In Stock	$ 101.726,83 $ 97.591,59 $ 94.095,43 $ 91.125,58 View $ 82.779,92 $ 82.103,25 $ 82.065,65	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: $ 11.503,48 1.570In Stock 500Expected 1/13/2027 End of Life	Mfr. Part # CPC1330GR Mouser Part # 849-CPC1330GR 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	1.570In Stock 500Expected 1/13/2027	$ 11.503,48 $ 10.826,80 $ 10.450,87 $ 10.150,13 View $ 9.849,38 $ 9.473,45 $ 8.947,15 $ 8.608,81 $ 8.458,44	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330G IXYS Integrated Circuits 1: $ 14.698,89 439In Stock End of Life	Mfr. Part # CPC1330G Mouser Part # 849-CPC1330G 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	439In Stock	$ 14.698,89 $ 11.052,36 $ 10.939,58 $ 9.285,49	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD LCA125 IXYS Integrated Circuits 1: $ 26.841,45 160In Stock End of Life	Mfr. Part # LCA125 Mouser Part # 849-LCA125 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	160In Stock	$ 26.841,45 $ 20.450,63 $ 19.585,99 $ 18.984,50 $ 18.909,31	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GR IXYS Integrated Circuits 1: $ 17.180,03 500In Stock 100Expected 2/8/2027 End of Life	Mfr. Part # CPC1390GR Mouser Part # 849-CPC1390GR 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	500In Stock 100Expected 2/8/2027	$ 17.180,03 $ 15.488,34 $ 14.473,33 $ 13.871,84 View $ 13.307,94 $ 12.668,86 $ 11.315,51 $ 10.939,58 $ 10.901,99	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972G IXYS Integrated Circuits 1: $ 11.014,77 424In Stock End of Life	Mfr. Part # CPC1972G Mouser Part # 849-CPC1972G 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	424In Stock	$ 11.014,77 $ 7.932,14 $ 7.481,02 $ 6.804,34 View $ 6.541,19 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA100L IXYS Integrated Circuits 1: $ 40.374,95 149In Stock End of Life	Mfr. Part # LAA100L Mouser Part # 849-LAA100L 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	149In Stock	$ 40.374,95 $ 37.856,21 $ 33.645,79 $ 31.916,51 View $ 30.262,41 $ 26.728,67 $ 26.390,33 $ 26.202,36 Quote	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GS IXYS Integrated Circuits 1: $ 11.014,77 489In Stock End of Life	Mfr. Part # CPC1972GS Mouser Part # 849-CPC1972GS 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	489In Stock	$ 11.014,77 $ 9.059,93 $ 8.308,07 $ 7.443,43 View $ 7.067,50 $ 7.029,90 $ 6.804,34 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006N IXYS Integrated Circuits 1: $ 4.736,73 117.504In Stock End of Life	Mfr. Part # CPC1006N Mouser Part # 849-CPC1006N 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	117.504In Stock	$ 4.736,73 $ 4.248,02 $ 4.060,05 $ 3.909,68 View $ 3.748,03 $ 3.590,14 $ 3.093,91 $ 2.988,65 $ 2.808,20	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1008N IXYS Integrated Circuits 1: $ 10.413,28 55.291In Stock End of Life	Mfr. Part # CPC1008N Mouser Part # 849-CPC1008N 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	55.291In Stock	$ 10.413,28 $ 9.473,45 $ 9.135,11 $ 8.871,96 View $ 7.631,39 $ 7.481,02 $ 7.443,43	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: $ 11.954,59 193.019In Stock End of Life	Mfr. Part # CPC1014N Mouser Part # 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	193.019In Stock	$ 11.954,59 $ 10.638,84 $ 9.886,98 $ 9.548,64 View $ 9.210,30 $ 8.984,74 $ 8.759,18 $ 8.458,44 $ 8.420,85	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: $ 12.556,08 8.583In Stock End of Life	Mfr. Part # CPC1035NTR Mouser Part # 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	8.583In Stock	Cut Tape $ 12.556,08 $ 11.202,73 $ 10.676,43 $ 10.187,72 View Reel $ 8.458,44 $ 9.886,98 $ 9.435,86 $ 9.097,52 $ 8.796,78 $ 8.458,44 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GRTR IXYS Integrated Circuits 1: $ 15.638,71 9.676In Stock End of Life	Mfr. Part # CPC1390GRTR Mouser Part # 849-CPC1390GRTR 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	9.676In Stock	Cut Tape $ 15.638,71 $ 13.984,62 $ 13.345,54 $ 12.856,83 Reel $ 11.315,51 View $ 12.368,12 $ 11.804,22 $ 11.390,70 $ 10.977,17 MouseReel Available	Min.: 1 Mult.: 1 : 1.000