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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 (UYU) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA140 IXYS Integrated Circuits 1: $ 613,89 2.008In Stock	Mfr. Part # PAA140 Mouser Part # 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	$ 613,89 $ 559,77 $ 538,95 $ 519,52 View $ 498,70 $ 481,12 $ 469,09 $ 465,86	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: $ 140,17 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 $ 140,17 $ 125,37 $ 117,97 $ 114,27 Reel $ 87,90 View $ 110,10 $ 105,01 $ 101,78 $ 87,90 $ 84,66 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: $ 147,11 203.845In 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	203.845In Stock	$ 147,11 $ 130,92 $ 121,67 $ 117,50 View $ 113,34 $ 110,57 $ 107,79 $ 104,09	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: $ 168,39 11.703In 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	11.703In Stock	Cut Tape $ 168,39 $ 150,35 $ 143,41 $ 136,47 Reel $ 107,79 View $ 132,31 $ 126,29 $ 122,13 $ 106,40 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: $ 1.023,31 7.194In Stock 7.550Expected 2/1/2027 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	7.194In Stock 7.550Expected 2/1/2027	$ 1.023,31 $ 920,61 $ 794,78 $ 765,63 View $ 745,74 $ 721,22 $ 703,18 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: $ 161,92 27.969In 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	27.969In Stock	$ 161,92 $ 129,53 $ 121,21 $ 109,18 View $ 106,40 $ 102,70 $ 99,46 $ 97,61 $ 97,15	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110STR IXYS Integrated Circuits 1: $ 406,18 9.758In Stock End of Life	Mfr. Part # LAA110STR Mouser Part # 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	9.758In Stock	Cut Tape $ 406,18 $ 361,77 $ 345,58 $ 334,01 Reel $ 236,86 View $ 322,44 $ 305,33 $ 294,69 $ 236,40 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: $ 238,25 42.444In 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	42.444In Stock	$ 238,25 $ 195,69 $ 182,73 $ 176,72 View $ 161,92 $ 156,83 $ 154,51 $ 151,74	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: $ 154,51 8.713In 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	8.713In Stock	Cut Tape $ 154,51 $ 137,86 $ 130,46 $ 125,37 View Reel $ 93,91 $ 121,21 $ 115,65 $ 111,95 $ 107,79 $ 93,91 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132STR IXYS Integrated Circuits 1: $ 743,43 1.188In Stock	Mfr. Part # PAA132STR Mouser Part # 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 $ 743,43 $ 661,08 $ 627,77 $ 594,93 View Reel $ 475,57 $ 561,62 $ 527,38 $ 509,34 $ 475,57 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA132 IXYS Integrated Circuits 1: $ 738,34 269In Stock	Mfr. Part # PAA132 Mouser Part # 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	$ 738,34 $ 657,84 $ 628,24 $ 535,71 $ 512,12	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA712 IXYS Integrated Circuits 1: $ 513,51 848In Stock	Mfr. Part # LCA712 Mouser Part # 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	$ 513,51 $ 457,53 $ 437,17 $ 374,72 $ 356,22	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110STR IXYS Integrated Circuits 1: $ 606,49 1.400In Stock	Mfr. Part # PAA110STR Mouser Part # 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 $ 606,49 $ 540,80 $ 516,28 $ 498,70 View Reel $ 416,36 $ 478,35 $ 454,75 $ 439,02 $ 416,36 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA110S IXYS Integrated Circuits 1: $ 635,17 241In Stock	Mfr. Part # PAA110S Mouser Part # 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	$ 635,17 $ 565,78 $ 550,98 $ 453,37 View $ 449,66 $ 443,19 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 60V 600mA SSR PAA132S IXYS Integrated Circuits 1: $ 738,34 1.240In Stock	Mfr. Part # PAA132S Mouser Part # 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	$ 738,34 $ 657,84 $ 628,24 $ 546,81 View $ 529,23 $ 498,24	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: $ 965,95 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	$ 965,95 $ 860,47 $ 748,05 $ 723,53 View $ 711,04 $ 704,57 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: $ 974,74 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	$ 974,74 $ 868,80 $ 829,01 $ 800,33 View $ 723,07 $ 693,93	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: $ 489,45 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	$ 489,45 $ 446,43 $ 428,85 $ 414,51 View $ 397,85 $ 384,90 $ 365,47	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: $ 301,63 978In 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	978In Stock	$ 301,63 $ 268,78 $ 256,75 $ 225,29 View $ 216,51 $ 208,18 $ 201,24 $ 198,00	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: $ 1.479,91 218In 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	218In Stock	$ 1.479,91 $ 1.347,61 $ 1.286,54 $ 1.242,59 View $ 1.199,57 $ 1.032,10	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GSTR IXYS Integrated Circuits 1: $ 129,53 3.553In Stock End of Life	Mfr. Part # CPC1972GSTR Mouser Part # 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 $ 129,53 $ 106,40 $ 98,08 $ 89,75 Reel $ 80,50 View $ 79,11 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: $ 166,08 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	$ 166,08 $ 157,29 $ 150,35 $ 144,34 View $ 138,79 $ 131,85 $ 123,06 $ 107,79	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010N IXYS Integrated Circuits 1: $ 189,21 3.837In Stock End of Life	Mfr. Part # CPC1010N Mouser Part # 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	$ 189,21 $ 168,86 $ 160,99 $ 154,51 View $ 148,50 $ 141,56 $ 125,37 $ 122,13	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: $ 1.711,69 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	$ 1.711,69 $ 1.534,04 $ 1.531,27 $ 1.454,47 $ 1.281,45	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA191 IXYS Integrated Circuits 1: $ 564,86 90In Stock	Mfr. Part # PAA191 Mouser Part # 849-PAA191	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	90In Stock	$ 564,86 $ 518,13 $ 500,09 $ 482,97 View $ 449,66 $ 443,19 $ 438,10 $ 436,71 Quote	Min.: 1 Mult.: 1