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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540G IXYS Integrated Circuits 1: $7.97 Non-Stocked Lead-Time 34 Weeks End of Life	Mfr. Part No. CPC1540G Mouser Part No 849-CPC1540G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 34 Weeks	$7.97 $7.10 $6.79 $6.54 View $6.31 $6.02	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay CPC1561B IXYS Integrated Circuits 1: $14.74 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. CPC1561B Mouser Part No 849-CPC1561B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 60V, 1A, Single Pole, Normally Open Current Limiting Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$14.74 $13.14 $12.54 $12.10 View $11.68 $10.35	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1563GSTR IXYS Integrated Circuits 1: $8.91 Non-Stocked Lead-Time 54 Weeks End of Life	Mfr. Part No. CPC1563GSTR Mouser Part No 849-CPC1563GSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 54 Weeks	Cut Tape $8.91 $8.35 $7.43 $7.04 View Reel $5.89 $6.68 $6.34 $6.12 $5.89	Min.: 1 Mult.: 1 : 1,000
Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch CPC1943G IXYS Integrated Circuits 1: $20.41 Non-Stocked Lead-Time 43 Weeks End of Life	Mfr. Part No. CPC1943G Mouser Part No 849-CPC1943G End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V, 500mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 43 Weeks	$20.41	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch CPC1961G IXYS Integrated Circuits 1: $6.34 Non-Stocked Lead-Time 23 Weeks End of Life	Mfr. Part No. CPC1961G Mouser Part No 849-CPC1961G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 23 Weeks	$6.34 $5.93 $5.28 $5.00 View $4.80 $4.58 $4.42 $4.27	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch CPC1961GS IXYS Integrated Circuits 1: $6.34 Non-Stocked Lead-Time 23 Weeks End of Life	Mfr. Part No. CPC1961GS Mouser Part No 849-CPC1961GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V 0.2mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 23 Weeks	$6.34 $5.93 $5.28 $5.00 View $4.80 $4.58 $4.42 $4.27	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch CPC1963GS IXYS Integrated Circuits 1: $17.33 Non-Stocked Lead-Time 47 Weeks End of Life	Mfr. Part No. CPC1963GS Mouser Part No 849-CPC1963GS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 47 Weeks	$17.33 $15.42 $14.70 $14.05 View $13.46 $11.86	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount AC Switch w/ Dual Power Outputs CPC1964B IXYS Integrated Circuits Non-Stocked Lead-Time 23 Weeks	Mfr. Part No. CPC1964B Mouser Part No 849-CPC1964B	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC Switch w/ Dual Power Outputs Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 23 Weeks		Request a Quote
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA100 IXYS Integrated Circuits 1: $14.43 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA100 Mouser Part No 849-LAA100 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	Non-Stocked Lead-Time 36 Weeks	$14.43 $13.52 $12.02 $11.41 View $10.81 $9.90	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA100LS IXYS Integrated Circuits 1: $13.99 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA100LS Mouser Part No 849-LAA100LS 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	Non-Stocked Lead-Time 36 Weeks	$13.99 $12.80 $11.78 $11.26 View $10.77 $10.13	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA100LSTR IXYS Integrated Circuits 1: $13.34 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA100LSTR Mouser Part No 849-LAA100LSTR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape $13.34 $12.91 $12.77 Reel $9.03 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120L IXYS Integrated Circuits 1: $14.44 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA120L Mouser Part No 849-LAA120L 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	Non-Stocked Lead-Time 36 Weeks	$14.44 $13.53 $12.04 $11.41 $10.39	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120LS IXYS Integrated Circuits 1: $14.44 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA120LS Mouser Part No 849-LAA120LS 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	Non-Stocked Lead-Time 36 Weeks	$14.44 $13.53 $12.04 $11.41 $10.39	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 170mA Dual Single-Pole LAA120STR IXYS Integrated Circuits 1: $12.36 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA120STR Mouser Part No 849-LAA120STR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape $12.36 $11.02 $10.51 $10.08 View Reel $8.36 $9.64 $9.06 $8.74 $8.36 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 350V 170mA Dual Single-Pole LAA125L IXYS Integrated Circuits 1: $13.22 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA125L Mouser Part No 849-LAA125L 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	Non-Stocked Lead-Time 36 Weeks	$13.22 $11.79 $11.26 $10.85 View $10.49 $9.83	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127L IXYS Integrated Circuits 1: $16.46 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA127L Mouser Part No 849-LAA127L 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	Non-Stocked Lead-Time 36 Weeks	$16.46 $14.67 $14.01 $13.52	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V 200mA Dual Single-Pole LAA127LSTR IXYS Integrated Circuits 1: $16.28 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LAA127LSTR Mouser Part No 849-LAA127LSTR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape $16.28 $14.47 $13.75 $13.03 View Reel $11.03 $12.40 $11.83 $11.44 $11.03 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100 IXYS Integrated Circuits 1: $8.61 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100 Mouser Part No 849-LCA100 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	Non-Stocked Lead-Time 36 Weeks	$8.61 $8.06 $7.17 $6.80 View $6.45 $6.12	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100LS IXYS Integrated Circuits 1: $8.45 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100LS Mouser Part No 849-LCA100LS 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	Non-Stocked Lead-Time 36 Weeks	$8.45 $7.52	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100LSTR IXYS Integrated Circuits 1: $8.53 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100LSTR Mouser Part No 849-LCA100LSTR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape $8.53 $8.00 $7.10 $6.75 View Reel $5.64 $6.39 $6.07 $5.86 $5.64 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA100STR IXYS Integrated Circuits 1: $8.00 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA100STR Mouser Part No 849-LCA100STR 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	Non-Stocked Lead-Time 36 Weeks	Cut Tape $8.00 $7.79 $7.78 Reel $5.51 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA LCA120LSTR IXYS Integrated Circuits 1: $8.70 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA120LSTR Mouser Part No 849-LCA120LSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Cut Tape $8.70 $7.75 $7.33 $7.02 View Reel $5.81 $6.72 $6.39 $6.17 $5.81 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA LCA125L IXYS Integrated Circuits 1: $10.62 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA125L Mouser Part No 849-LCA125L End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$10.62 $9.96 $8.85 $8.40 View $7.97 $7.48	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A,300V,170mA LCA125LS IXYS Integrated Circuits 1: $10.64 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA125LS Mouser Part No 849-LCA125LS End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole OptoMOS 1-Form-A,300V,170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$10.64 $9.97 $8.87 $8.40 $7.81	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA LCA125S IXYS Integrated Circuits 1: $10.46 Non-Stocked Lead-Time 36 Weeks End of Life	Mfr. Part No. LCA125S Mouser Part No 849-LCA125S End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 300V 170mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$10.46 $9.81 $8.72 $8.28 View $7.85 $7.36	Min.: 1 Mult.: 1