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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA193 IXYS Integrated Circuits 1: $6.43 51In Stock	Mfr. Part No. PLA193 Mouser Part No 849-PLA193	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	51In Stock	$6.43 $5.73 $5.69 $5.40 View $5.09 $4.58 $4.47 $4.40	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay CPC1002N IXYS Integrated Circuits 1: $3.12 85In Stock 66,700On Order End of Life	Mfr. Part No. CPC1002N Mouser Part No 849-CPC1002N 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	85In Stock 66,700On Order On Order Ship Dates Mfr. No: CPC1002N Stock: 85 Can Dispatch Immediately On Order: 46,600 Expected 2027/06/23 20,100 Expected 2027/06/25 Factory Lead Time: 31 Weeks	$3.12 $2.78 $2.66 $2.57 View $2.48 $2.35 $2.29	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay CPC1008NTR IXYS Integrated Circuits 1: $3.04 80In Stock 90,000On Order End of Life	Mfr. Part No. CPC1008NTR Mouser Part No 849-CPC1008NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	80In Stock 90,000On Order On Order Ship Dates Mfr. No: CPC1008NTR Stock: 80 Can Dispatch Immediately On Order: 38,000 Expected 2026/11/30 52,000 Expected 2027/01/25 Factory Lead Time: 31 Weeks	Cut Tape $3.04 $2.93 Reel $2.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR CPC1009N IXYS Integrated Circuits 1: $3.21 121In Stock 7,900On Order End of Life	Mfr. Part No. CPC1009N Mouser Part No 849-CPC1009N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 100V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	121In Stock 7,900On Order On Order Ship Dates Mfr. No: CPC1009N Stock: 121 Can Dispatch Immediately On Order: 5,000 Expected 2027/02/15 2,900 Expected 2027/02/24 Factory Lead Time: 36 Weeks	$3.21 $3.01 $2.67 $2.58 View $2.49 $2.37 $2.29	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014NTR IXYS Integrated Circuits 1: $3.05 80In Stock 86,000On Order End of Life	Mfr. Part No. CPC1014NTR Mouser Part No 849-CPC1014NTR 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	80In Stock 86,000On Order On Order Ship Dates Mfr. No: CPC1014NTR Stock: 80 Can Dispatch Immediately On Order: 38,000 Expected 2026/12/28 48,000 Expected 2027/05/05 Factory Lead Time: 29 Weeks	Cut Tape $3.05 $2.93 Reel $2.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay CPC1018NTR IXYS Integrated Circuits 1: $5.04 157In Stock 22,000Expected 2026/12/28 End of Life	Mfr. Part No. CPC1018NTR Mouser Part No 849-CPC1018NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	157In Stock 22,000Expected 2026/12/28	Cut Tape $5.04 $4.61 $4.23 $4.05 View Reel $3.36 $3.91 $3.73 $3.61 $3.48 $3.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1030NTR IXYS Integrated Circuits 1: $3.81 369In Stock 4,000Expected 2027/03/08 End of Life	Mfr. Part No. CPC1030NTR Mouser Part No 849-CPC1030NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	369In Stock 4,000Expected 2027/03/08	Cut Tape $3.81 $3.49 $3.21 $3.11 View Reel $2.61 $2.98 $2.84 $2.76 $2.65 $2.61 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390G IXYS Integrated Circuits 1: $4.62 54In Stock 1,400On Order End of Life	Mfr. Part No. CPC1390G Mouser Part No 849-CPC1390G 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	54In Stock 1,400On Order On Order Ship Dates Mfr. No: CPC1390G Stock: 54 Can Dispatch Immediately On Order: 600 Expected 2027/03/31 800 Expected 2027/07/28 Factory Lead Time: 36 Weeks	$4.62 $4.18 $3.94 $3.80 View $3.43 $3.38	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GR IXYS Integrated Circuits 1: $4.94 8In Stock End of Life	Mfr. Part No. CPC1393GR Mouser Part No 849-CPC1393GR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	8In Stock	$4.94 $4.63 $4.12 $3.91 View $3.73 $3.56 $3.44	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GRTR IXYS Integrated Circuits 1: $4.72 281In Stock 14,000On Order End of Life	Mfr. Part No. CPC1393GRTR Mouser Part No 849-CPC1393GRTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	281In Stock 14,000On Order On Order Ship Dates Mfr. No: CPC1393GRTR Stock: 281 Can Dispatch Immediately On Order: 4,000 Expected 2027/01/13 10,000 Expected 2027/02/15 Factory Lead Time: 36 Weeks	Cut Tape $4.72 $4.64 $4.54 Reel $3.22 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation CPC1394GR IXYS Integrated Circuits 1: $4.76 68In Stock 600Expected 2027/01/13 End of Life	Mfr. Part No. CPC1394GR Mouser Part No 849-CPC1394GR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 600V,120mA 5000Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	68In Stock 600Expected 2027/01/13	$4.76 $4.24 $4.05 $3.99 View $3.78 $3.57 $3.49	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510G IXYS Integrated Circuits 1: $7.04 9In Stock 1,050Expected 2028/01/19 End of Life	Mfr. Part No. CPC1510G Mouser Part No 849-CPC1510G End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9In Stock 1,050Expected 2028/01/19	$7.04 $6.44 $5.93 $5.66 View $5.42 $4.81	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510GSTR IXYS Integrated Circuits 1: $6.92 36In Stock 9,000Expected 2027/01/29 End of Life	Mfr. Part No. CPC1510GSTR Mouser Part No 849-CPC1510GSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	36In Stock 9,000Expected 2027/01/29	Cut Tape $6.92 $6.51 $6.50 Reel $5.50 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GSTR IXYS Integrated Circuits 1: $5.92 9In Stock End of Life	Mfr. Part No. CPC1540GSTR Mouser Part No 849-CPC1540GSTR 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	9In Stock	Cut Tape $5.92 $5.29 $4.98 $4.77 Reel $4.05 View $4.57 $4.35 $4.20 $3.78	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay CPC1560GSTR IXYS Integrated Circuits 1: $7.91 10In Stock End of Life	Mfr. Part No. CPC1560GSTR Mouser Part No 849-CPC1560GSTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	10In Stock	Cut Tape $7.91 $7.41 $7.37 Reel $5.21 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount RELAY, SS ICS CPC1561BTR IXYS Integrated Circuits 1: $11.35 187In Stock 1,000Expected 2027/07/06 End of Life	Mfr. Part No. CPC1561BTR Mouser Part No 849-CPC1561BTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY, SS ICS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	187In Stock 1,000Expected 2027/07/06	Cut Tape $11.35 $10.64 $9.47 $8.99 View Reel $7.26 $8.51 $7.79 $7.52 $7.26 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation CPC1706Y IXYS Integrated Circuits 1: $7.35 33In Stock 8,875On Order End of Life	Mfr. Part No. CPC1706Y Mouser Part No 849-CPC1706Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A; 60V, 4ADC 2500Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	33In Stock 8,875On Order On Order Ship Dates Mfr. No: CPC1706Y Stock: 33 Can Dispatch Immediately On Order: 3,775 Expected 2027/07/23 5,100 Expected 2027/07/26 Factory Lead Time: 39 Weeks	$7.35 $6.55 $6.26 $5.98 View $5.75 $5.23	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1709J IXYS Integrated Circuits 1: $18.45 13In Stock 9,850On Order End of Life	Mfr. Part No. CPC1709J Mouser Part No 849-CPC1709J 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	13In Stock 9,850On Order On Order Ship Dates Mfr. No: CPC1709J Stock: 13 Can Dispatch Immediately On Order: 6,750 Expected 2027/07/28 1,350 Expected 2027/07/30 1,750 Expected 2027/08/02 Factory Lead Time: 36 Weeks	$18.45 $16.40 $15.15 $14.63 $14.12	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1718J IXYS Integrated Circuits 1: $18.91 12In Stock End of Life	Mfr. Part No. CPC1718J Mouser Part No 849-CPC1718J 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	12In Stock	$18.91 $16.85 $16.08 $15.54 $14.97	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1786J IXYS Integrated Circuits 1: $27.33 43In Stock 75Expected 2028/02/10 End of Life	Mfr. Part No. CPC1786J Mouser Part No 849-CPC1786J 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	43In Stock 75Expected 2028/02/10	$27.33 $25.48 $24.14 $22.81 View $21.68 $20.70 $19.99	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1788J IXYS Integrated Circuits 1: $29.76 8In Stock 525On Order End of Life	Mfr. Part No. CPC1788J Mouser Part No 849-CPC1788J 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	8In Stock 525On Order On Order Ship Dates Mfr. No: CPC1788J Stock: 8 Can Dispatch Immediately On Order: 225 Expected 2027/04/05 300 Expected 2027/11/01 Factory Lead Time: 51 Weeks	$29.76 $25.98 $24.82 $23.97	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay CPC1916Y IXYS Integrated Circuits 1: $13.54 6In Stock 1,400On Order End of Life	Mfr. Part No. CPC1916Y Mouser Part No 849-CPC1916Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6In Stock 1,400On Order On Order Ship Dates Mfr. No: CPC1916Y Stock: 6 Can Dispatch Immediately On Order: 800 Expected 2026/12/07 600 Expected 2027/07/07 Factory Lead Time: 37 Weeks	$13.54 $11.83 $11.29 $10.90 $10.57	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch CPC1963G IXYS Integrated Circuits 1: $12.15 162In Stock End of Life	Mfr. Part No. CPC1963G Mouser Part No 849-CPC1963G 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	162In Stock	$12.15 $10.83 $10.34 $9.97 View $9.61 $9.18 $8.55 $8.47 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay CPC1967J IXYS Integrated Circuits 1: $40.89 6In Stock 400On Order End of Life	Mfr. Part No. CPC1967J Mouser Part No 849-CPC1967J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6In Stock 400On Order On Order Ship Dates Mfr. No: CPC1967J Stock: 6 Can Dispatch Immediately On Order: 75 Expected 2027/02/15 325 Expected 2027/06/14 Factory Lead Time: 54 Weeks	$40.89 $36.15 $34.41 $32.91	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay CPC1973Y IXYS Integrated Circuits 1: $10.26 131In Stock End of Life	Mfr. Part No. CPC1973Y Mouser Part No 849-CPC1973Y End of Life	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	131In Stock	$10.26 $8.43 $7.54 $7.05 View $6.84 Quote	Min.: 1 Mult.: 1