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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 (AUD) 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: $20.20 1,939In Stock	Mfr. Part No. CPC1966YX6 Mouser Part No 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	$20.20 $17.99 $15.24 $14.79 View $14.33 $13.86 $13.56	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1035N IXYS Integrated Circuits 1: $5.08 27,949In Stock End of Life	Mfr. Part No. CPC1035N Mouser Part No 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	$5.08 $3.78 $3.63 $3.13 View $3.06 $2.97 $2.84 $2.81 $2.80	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710STR IXYS Integrated Circuits 1: $26.75 3,088In Stock End of Life	Mfr. Part No. LAA710STR Mouser Part No 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 $26.75 $23.82 $22.75 $21.97 View Reel $17.50 $21.21 $20.23 $19.53 $17.50 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: $5.28 10,703In Stock End of Life	Mfr. Part No. CPC1330GRTR Mouser Part No 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 $5.28 $4.71 $4.50 $4.28 Reel $3.25 View $4.15 $3.96 $3.83 $3.19 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay CPC1918J IXYS Integrated Circuits 1: $32.07 6,942In Stock 7,550Expected 13/01/2027 End of Life	Mfr. Part No. CPC1918J Mouser Part No 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 13/01/2027	$32.07 $28.81 $23.62 $22.94 View $22.45 $21.85 $21.40 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016NTR IXYS Integrated Circuits 1: $4.36 22,193In Stock End of Life	Mfr. Part No. CPC1016NTR Mouser Part No 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 $4.36 $3.92 $3.70 $3.58 Reel $2.65 View $3.45 $3.29 $3.19 $2.65 $2.58 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount SPST NO Relay CPC1018N IXYS Integrated Circuits 1: $7.47 41,082In Stock End of Life	Mfr. Part No. CPC1018N Mouser Part No 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	$7.47 $5.67 $5.41 $5.26 View $4.92 $4.77 $4.73 $4.67	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 6-Pin SM CPC1593GS IXYS Integrated Circuits 1: $9.45 728In Stock End of Life	Mfr. Part No. CPC1593GS Mouser Part No 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	$9.45 $8.42 $8.05 $6.68 View $6.47 $6.26 $6.10	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1777J IXYS Integrated Circuits 1: $30.28 186In Stock End of Life	Mfr. Part No. CPC1777J Mouser Part No 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	$30.28 $26.97 $23.45 $22.68 View $22.29 $22.03 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST i4-PAC 60V CPC1908J IXYS Integrated Circuits 1: $30.52 200In Stock End of Life	Mfr. Part No. CPC1908J Mouser Part No 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	$30.52 $27.20 $25.98 $25.09 View $22.03 $21.68 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST 1 Form A LAA127 IXYS Integrated Circuits 1: $14.15 611In Stock End of Life	Mfr. Part No. LAA127 Mouser Part No 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	$14.15 $13.09 $12.64 $12.33 View $11.88 $11.54 $10.08	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1986J IXYS Integrated Circuits 1: $53.65 160In Stock End of Life	Mfr. Part No. CPC1986J Mouser Part No 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	$53.65 $48.05 $48.00 $45.59 $39.73	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: $40.56 208In 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	208In Stock	$40.56 $35.80 $34.67 $33.99 View $32.44 $30.99 $30.97	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GR IXYS Integrated Circuits 1: $4.44 1,570In Stock 500Expected 13/01/2027 End of Life	Mfr. Part No. CPC1330GR Mouser Part No 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 13/01/2027	$4.44 $4.18 $4.03 $3.92 View $3.80 $3.65 $3.45 $3.32 $3.26	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330G IXYS Integrated Circuits 1: $5.67 439In Stock End of Life	Mfr. Part No. CPC1330G Mouser Part No 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	$5.67 $4.26 $4.22 $3.58	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD LCA125 IXYS Integrated Circuits 1: $10.35 160In Stock End of Life	Mfr. Part No. LCA125 Mouser Part No 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	$10.35 $7.89 $7.55 $7.32 $7.29	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GR IXYS Integrated Circuits 1: $6.63 500In Stock 100Expected 8/02/2027 End of Life	Mfr. Part No. CPC1390GR Mouser Part No 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 8/02/2027	$6.63 $5.97 $5.58 $5.35 View $5.13 $4.89 $4.36 $4.22 $4.21	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972G IXYS Integrated Circuits 1: $4.25 424In Stock End of Life	Mfr. Part No. CPC1972G Mouser Part No 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	$4.25 $3.06 $2.89 $2.62 View $2.52 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA100L IXYS Integrated Circuits 1: $15.57 149In Stock End of Life	Mfr. Part No. LAA100L Mouser Part No 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	$15.57 $14.60 $12.98 $12.31 View $11.67 $10.31 $10.18 $10.11 Quote	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GS IXYS Integrated Circuits 1: $4.25 489In Stock End of Life	Mfr. Part No. CPC1972GS Mouser Part No 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	$4.25 $3.49 $3.20 $2.87 View $2.73 $2.71 $2.62 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006N IXYS Integrated Circuits 1: $1.83 117,504In Stock End of Life	Mfr. Part No. CPC1006N Mouser Part No 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	$1.83 $1.64 $1.57 $1.51 View $1.45 $1.38 $1.19 $1.15 $1.08	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1008N IXYS Integrated Circuits 1: $4.02 55,360In Stock End of Life	Mfr. Part No. CPC1008N Mouser Part No 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	55,360In Stock	$4.02 $3.65 $3.52 $3.42 View $2.94 $2.89 $2.87	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014N IXYS Integrated Circuits 1: $4.61 193,119In Stock End of Life	Mfr. Part No. CPC1014N Mouser Part No 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	193,119In Stock	$4.61 $4.10 $3.81 $3.68 View $3.55 $3.47 $3.38 $3.26 $3.25	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: $4.84 8,583In Stock End of Life	Mfr. Part No. CPC1035NTR Mouser Part No 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 $4.84 $4.32 $4.12 $3.93 View Reel $3.26 $3.81 $3.64 $3.51 $3.39 $3.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390GRTR IXYS Integrated Circuits 1: $6.03 9,676In Stock End of Life	Mfr. Part No. CPC1390GRTR Mouser Part No 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 $6.03 $5.39 $5.15 $4.96 Reel $4.36 View $4.77 $4.55 $4.39 $4.23 MouseReel Available	Min.: 1 Mult.: 1 : 1,000