.hide-partial { max-height: none; } .show-more { display: none; }

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.

All Results (277)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (DKK) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount SP-NO SS OptoMOS Power Relay CPC1983B IXYS Integrated Circuits 1: 73,93 kr. 150In Stock End of Life	Mfr. Part No. CPC1983B Mouser Part No 849-CPC1983B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	150In Stock	73,93 kr. 69,30 kr. 61,55 kr. 58,41 kr. View 50,65 kr. 48,79 kr. 47,97 kr. 47,52 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 100V 300mA Double Pole Relay LAA108 IXYS Integrated Circuits 1: 34,17 kr. 295In Stock End of Life	Mfr. Part No. LAA108 Mouser Part No 849-LAA108 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V 300mA Double Pole Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	295In Stock	34,17 kr. 30,51 kr. 29,09 kr. 28,05 kr. View 26,93 kr. 25,74 kr. 24,84 kr. 23,13 kr. 23,05 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 100V 300mA Double Pole Relay LAA108S IXYS Integrated Circuits 1: 35,06 kr. 3In Stock End of Life	Mfr. Part No. LAA108S Mouser Part No 849-LAA108S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V 300mA Double Pole Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3In Stock	35,06 kr. 32,00 kr. 29,54 kr. 28,20 kr. View 26,93 kr. 25,74 kr. 23,65 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110LS IXYS Integrated Circuits 1: 57,22 kr. 6In Stock End of Life	Mfr. Part No. LAA110LS Mouser Part No 849-LAA110LS 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	6In Stock	57,22 kr. 52,59 kr. 51,32 kr. 42,30 kr. View 39,76 kr. 38,72 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120 IXYS Integrated Circuits 1: 62,59 kr. 156In Stock End of Life	Mfr. Part No. LAA120 Mouser Part No 849-LAA120 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	156In Stock	62,59 kr. 58,64 kr. 53,71 kr. 45,58 kr. View 34,99 kr. 34,84 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120S IXYS Integrated Circuits 1: 61,02 kr. 3In Stock End of Life	Mfr. Part No. LAA120S Mouser Part No 849-LAA120S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3In Stock	61,02 kr. 54,38 kr. 52,00 kr. 49,76 kr. View 43,12 kr. 42,22 kr. 41,40 kr. 41,10 kr. Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DUAL POLE LAA125 IXYS Integrated Circuits 1: 57,52 kr. 125In Stock End of Life	Mfr. Part No. LAA125 Mouser Part No 849-LAA125 End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount DUAL POLE Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	125In Stock	57,52 kr. 51,32 kr. 49,01 kr. 47,30 kr. View 46,85 kr. 41,93 kr. 41,33 kr. 40,73 kr. Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole LAA125S IXYS Integrated Circuits 1: 57,52 kr. 62In Stock 100Expected 30/10/2026 End of Life	Mfr. Part No. LAA125S Mouser Part No 849-LAA125S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	62In Stock 100Expected 30/10/2026	57,52 kr. 52,07 kr. 49,46 kr. 42,37 kr. View 40,73 kr. 39,84 kr. 39,02 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127S IXYS Integrated Circuits 1: 81,46 kr. 48In Stock End of Life	Mfr. Part No. LAA127S Mouser Part No 849-LAA127S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	48In Stock	81,46 kr. 72,51 kr. 69,08 kr. 66,02 kr. View 63,34 kr. 57,74 kr. 56,77 kr. 55,80 kr. Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP LAA710 IXYS Integrated Circuits 1: 128,54 kr. 11In Stock 1.250On Order End of Life	Mfr. Part No. LAA710 Mouser Part No 849-LAA710 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	11In Stock 1.250On Order On Order Ship Dates Mfr. No: LAA710 Stock: 11 Can Dispatch Immediately On Order: 550 Expected 20/11/2026 700 Expected 17/05/2027 Factory Lead Time: 35 Weeks	128,54 kr. 114,36 kr. 108,92 kr. 104,07 kr. 88,40 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 6PIN DIP LCA110 IXYS Integrated Circuits 1: 29,24 kr. 56In Stock 17.250On Order End of Life	Mfr. Part No. LCA110 Mouser Part No 849-LCA110 End of Life	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	56In Stock 17.250On Order On Order Ship Dates Mfr. No: LCA110 Stock: 56 Can Dispatch Immediately On Order: 9.350 Expected 19/02/2027 7.900 Expected 21/04/2027 Factory Lead Time: 36 Weeks	29,24 kr. 26,11 kr. 24,99 kr. 24,10 kr. View 23,28 kr. 22,23 kr. 21,41 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 6PIN SMD LCA110S IXYS Integrated Circuits 1: 27,83 kr. 507In Stock 800Expected 09/04/2027 End of Life	Mfr. Part No. LCA110S Mouser Part No 849-LCA110S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6PIN SMD Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	507In Stock 800Expected 09/04/2027	27,83 kr. 25,44 kr. 23,42 kr. 22,53 kr. View 21,78 kr. 20,81 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA LCA127LS IXYS Integrated Circuits 1: 50,36 kr. 14In Stock End of Life	Mfr. Part No. LCA127LS Mouser Part No 849-LCA127LS 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	14In Stock	50,36 kr. 44,91 kr. 42,67 kr. 40,81 kr. View 39,09 kr. 34,99 kr. 34,47 kr. 34,02 kr. 33,87 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA140LS IXYS Integrated Circuits 1: 97,35 kr. 41In Stock	Mfr. Part No. PAA140LS Mouser Part No 849-PAA140LS	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	41In Stock	97,35 kr. 86,83 kr. 82,88 kr. 79,97 kr. View 74,45 kr. 72,96 kr. 71,99 kr. 71,62 kr. Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 6 Pin SMD LCA710S IXYS Integrated Circuits 1: 62,07 kr. 6.250On Order	Mfr. Part No. LCA710S Mouser Part No 849-LCA710S	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6 Pin SMD Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6.250On Order On Order Ship Dates Mfr. No: LCA710S Stock: 0 On Order: 400 Expected 23/10/2026 3.100 Expected 18/01/2027 2.750 Expected 02/07/2027 Factory Lead Time: 36 Weeks	62,07 kr. 55,28 kr. 52,82 kr. 47,37 kr. View 45,51 kr. 41,93 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715S IXYS Integrated Circuits 1: 75,05 kr. 4.588Expected 28/06/2027	Mfr. Part No. LCA715S Mouser Part No 849-LCA715S	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	4.588Expected 28/06/2027	75,05 kr. 66,69 kr. 63,41 kr. 59,68 kr. View 57,59 kr. 55,20 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA140STR IXYS Integrated Circuits 1: 96,31 kr. 4.000On Order	Mfr. Part No. PAA140STR Mouser Part No 849-PAA140STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4.000On Order On Order Ship Dates Mfr. No: PAA140STR Stock: 0 On Order: 2.000 Expected 27/01/2027 2.000 Expected 01/04/2027 Factory Lead Time: 36 Weeks	Cut Tape 96,31 kr. 85,57 kr. 81,31 kr. 77,06 kr. View Reel 66,77 kr. 72,74 kr. 69,15 kr. 66,77 kr. 66,77 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR PAA150STR IXYS Integrated Circuits 1: 85,04 kr. 1.656Expected 26/07/2027	Mfr. Part No. PAA150STR Mouser Part No 849-PAA150STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1.656Expected 26/07/2027	Cut Tape 85,04 kr. 75,87 kr. 72,44 kr. 69,90 kr. 67,59 kr. Reel 60,13 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA110 IXYS Integrated Circuits 1: 49,68 kr. 4.141Expected 30/07/2027	Mfr. Part No. PLA110 Mouser Part No 849-PLA110	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	4.141Expected 30/07/2027	49,68 kr. 44,24 kr. 40,81 kr. 39,39 kr. View 38,05 kr. 36,33 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA140 IXYS Integrated Circuits 1: 64,53 kr. 8.550On Order	Mfr. Part No. PLA140 Mouser Part No 849-PLA140	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	8.550On Order On Order Ship Dates Mfr. No: PLA140 Stock: 0 On Order: 2.700 Expected 25/01/2027 2.650 Expected 19/03/2027 3.200 Expected 21/07/2027 Factory Lead Time: 35 Weeks	64,53 kr. 60,50 kr. 53,79 kr. 51,03 kr. View 48,34 kr. 45,88 kr. 44,24 kr. 42,75 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA140LSTR IXYS Integrated Circuits 1: 60,80 kr. 3.000Expected 21/07/2027	Mfr. Part No. PLA140LSTR Mouser Part No 849-PLA140LSTR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3.000Expected 21/07/2027	Cut Tape 60,80 kr. 55,65 kr. 51,18 kr. 49,01 kr. View Reel 41,18 kr. 46,92 kr. 44,24 kr. 42,67 kr. 41,18 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA140STR IXYS Integrated Circuits 1: 61,77 kr. 8.993Expected 17/05/2027	Mfr. Part No. PLA140STR Mouser Part No 849-PLA140STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	8.993Expected 17/05/2027	Cut Tape 61,77 kr. 57,89 kr. 51,47 kr. 48,86 kr. View Reel 39,91 kr. 46,33 kr. 42,82 kr. 41,33 kr. 39,91 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA PLA170STR IXYS Integrated Circuits 1: 42,37 kr. 66.656On Order	Mfr. Part No. PLA170STR Mouser Part No 849-PLA170STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	66.656On Order On Order Ship Dates Mfr. No: PLA170STR Stock: 0 On Order: 656 Expected 25/01/2027 42.000 Expected 23/06/2027 24.000 Expected 30/07/2027 Factory Lead Time: 36 Weeks	Cut Tape 42,37 kr. 41,03 kr. Reel 29,09 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA140S IXYS Integrated Circuits 1: 96,16 kr. 2.994On Order NRND	Mfr. Part No. PAA140S Mouser Part No 849-PAA140S NRND	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2.994On Order On Order Ship Dates Mfr. No: PAA140S Stock: 0 On Order: 1.344 Expected 01/03/2027 1.650 Expected 07/07/2027 Factory Lead Time: 36 Weeks	96,16 kr. 88,55 kr. 84,67 kr. 81,31 kr. 76,24 kr.	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay CPC1002NTR IXYS Integrated Circuits 1: 17,53 kr. 201.542On Order End of Life	Mfr. Part No. CPC1002NTR Mouser Part No 849-CPC1002NTR 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	201.542On Order On Order Ship Dates Mfr. No: CPC1002NTR Stock: 0 On Order: 7.542 Expected 28/12/2026 50.000 Expected 04/01/2027 64.000 Expected 20/01/2027 80.000 Expected 25/03/2027 Factory Lead Time: 31 Weeks	Cut Tape 17,53 kr. 17,46 kr. 11,56 kr. Reel 11,56 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000