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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 (CLP) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA PLA192STR IXYS Integrated Circuits 1: $8.203 34In Stock 2.000Expected 7/26/2027	Mfr. Part # PLA192STR Mouser Part # 849-PLA192STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	34In Stock 2.000Expected 7/26/2027	Cut Tape $8.203 $7.496 $6.961 $6.608 View Reel $5.446 $6.323 $6.004 $5.799 $5.446 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount SPST-NO 6PIN DIP PLA193 IXYS Integrated Circuits 1: $7.326 51In Stock	Mfr. Part # PLA193 Mouser Part # 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	$7.326 $6.528 $6.482 $6.152 View $5.799 $5.218 $5.093 $5.001	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay CPC1002N IXYS Integrated Circuits 1: $3.555 85In Stock 111.300On Order End of Life	Mfr. Part # CPC1002N Mouser Part # 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 111.300On Order On Order Ship Dates Mfr. #: CPC1002N Stock: 85 Can Ship Immediately On Order: 44.600 Expected 5/25/2027 46.600 Expected 6/23/2027 20.100 Expected 6/25/2027 Factory Lead-Time: 31 Weeks	$3.555 $3.167 $3.030 $2.928 View $2.825 $2.677 $2.609	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay CPC1008NTR IXYS Integrated Circuits 1: $3.452 80In Stock 90.000On Order End of Life	Mfr. Part # CPC1008NTR Mouser Part # 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. #: CPC1008NTR Stock: 80 Can Ship Immediately On Order: 38.000 Expected 11/30/2026 52.000 Expected 1/25/2027 Factory Lead-Time: 31 Weeks	Cut Tape $3.452 $3.179 $2.951 $2.848 View Reel $2.279 $2.746 $2.620 $2.529 $2.279 $2.279 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: $3.839 204In Stock 7.900On Order End of Life	Mfr. Part # CPC1009N Mouser Part # 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	204In Stock 7.900On Order On Order Ship Dates Mfr. #: CPC1009N Stock: 204 Can Ship Immediately On Order: 5.000 Expected 2/15/2027 2.900 Expected 2/24/2027 Factory Lead-Time: 36 Weeks	$3.839 $3.429 $3.270 $3.156 View $3.053 $2.791 $2.643	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay CPC1014NTR IXYS Integrated Circuits 1: $3.475 615In Stock 86.000On Order End of Life	Mfr. Part # CPC1014NTR Mouser Part # 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	615In Stock 86.000On Order On Order Ship Dates Mfr. #: CPC1014NTR Stock: 615 Can Ship Immediately On Order: 38.000 Expected 12/28/2026 48.000 Expected 5/5/2027 Factory Lead-Time: 29 Weeks	Cut Tape $3.475 $3.179 $2.951 $2.882 View Reel $2.279 $2.723 $2.609 $2.518 $2.279 $2.279 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: $5.731 48In Stock 22.000Expected 12/28/2026 End of Life	Mfr. Part # CPC1018NTR Mouser Part # 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	48In Stock 22.000Expected 12/28/2026	Cut Tape $5.731 $5.241 $4.819 $4.614 View Reel $3.828 $4.455 $4.249 $4.101 $3.965 $3.828 MouseReel Available	Min.: 1 Mult.: 1 : 2.000
Solid State Relays - PCB Mount Single Pole Relay 400V 140mA CPC1390G IXYS Integrated Circuits 1: $5.263 54In Stock 1.400On Order End of Life	Mfr. Part # CPC1390G Mouser Part # 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. #: CPC1390G Stock: 54 Can Ship Immediately On Order: 600 Expected 3/31/2027 800 Expected 7/28/2027 Factory Lead-Time: 36 Weeks	$5.263 $4.762 $4.489 $4.329 View $3.908 $3.851	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GR IXYS Integrated Circuits 1: $5.628 8In Stock End of Life	Mfr. Part # CPC1393GR Mouser Part # 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	$5.628 $5.275 $4.694 $4.455 View $4.249 $4.056 $3.919	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay CPC1393GRTR IXYS Integrated Circuits 1: $5.377 281In Stock 14.000On Order End of Life	Mfr. Part # CPC1393GRTR Mouser Part # 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. #: CPC1393GRTR Stock: 281 Can Ship Immediately On Order: 4.000 Expected 1/13/2027 10.000 Expected 2/15/2027 Factory Lead-Time: 36 Weeks	Cut Tape $5.377 $5.286 $5.172 Reel $3.657 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: $5.412 2In Stock 600Expected 1/13/2027 End of Life	Mfr. Part # CPC1394GR Mouser Part # 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	2In Stock 600Expected 1/13/2027	$5.412 $4.831 $4.614 $4.546 View $4.306 $4.067 $3.965	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510G IXYS Integrated Circuits 1: $8.021 9In Stock 1.050Expected 1/19/2028 End of Life	Mfr. Part # CPC1510G Mouser Part # 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 1/19/2028	$8.021 $7.337 $6.756 $6.448 View $6.175 $5.480	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay CPC1510GSTR IXYS Integrated Circuits 1: $7.645 36In Stock 9.000Expected 1/29/2027 End of Life	Mfr. Part # CPC1510GSTR Mouser Part # 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 1/29/2027	Cut Tape $7.645 $6.995 $6.437 $6.266 Reel $6.266 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount SP, Normally-Open OptoMOS Relay CPC1540GSTR IXYS Integrated Circuits 1: $6.745 9In Stock End of Life	Mfr. Part # CPC1540GSTR Mouser Part # 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 $6.745 $6.027 $5.674 $5.434 Reel $4.614 View $5.206 $4.956 $4.785 $4.306	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount 1-Form-A 60V 600mA Solid State Relay CPC1560GSTR IXYS Integrated Circuits 1: $9.012 10In Stock End of Life	Mfr. Part # CPC1560GSTR Mouser Part # 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 $9.012 $8.442 $8.396 Reel $5.936 MouseReel Available	Min.: 1 Mult.: 1 : 1.000
Solid State Relays - PCB Mount RELAY, SS ICS CPC1561BTR IXYS Integrated Circuits 1: $12.931 187In Stock 1.000Expected 7/6/2027 End of Life	Mfr. Part # CPC1561BTR Mouser Part # 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 7/6/2027	Cut Tape $12.931 $12.122 $10.778 $10.242 View Reel $8.260 $9.695 $8.875 $8.567 $8.260 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: $8.396 96In Stock 8.875On Order End of Life	Mfr. Part # CPC1706Y Mouser Part # 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	96In Stock 8.875On Order On Order Ship Dates Mfr. #: CPC1706Y Stock: 96 Can Ship Immediately On Order: 3.775 Expected 7/23/2027 5.100 Expected 7/26/2027 Factory Lead-Time: 39 Weeks	$8.396 $7.679 $7.132 $6.653 View $6.312 $5.685	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1709J IXYS Integrated Circuits 1: $20.997 13In Stock 9.850On Order End of Life	Mfr. Part # CPC1709J Mouser Part # 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. #: CPC1709J Stock: 13 Can Ship Immediately On Order: 6.750 Expected 7/28/2027 1.350 Expected 7/30/2027 1.750 Expected 8/2/2027 Factory Lead-Time: 36 Weeks	$20.997 $18.673 $17.260 $16.668 $16.087	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1718J IXYS Integrated Circuits 1: $21.544 12In Stock End of Life	Mfr. Part # CPC1718J Mouser Part # 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	$21.544 $19.197 $18.320 $17.693 View $16.998 $16.132 $15.585 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1786J IXYS Integrated Circuits 1: $31.136 43In Stock 75Expected 2/10/2028 End of Life	Mfr. Part # CPC1786J Mouser Part # 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 2/10/2028	$31.136 $29.029 $27.502 $25.975 View $24.699 $23.583 $22.774	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1788J IXYS Integrated Circuits 1: $33.893 8In Stock 525On Order End of Life	Mfr. Part # CPC1788J Mouser Part # 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. #: CPC1788J Stock: 8 Can Ship Immediately On Order: 225 Expected 4/5/2027 300 Expected 11/1/2027 Factory Lead-Time: 51 Weeks	$33.893 $29.598 $28.265 $27.297	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 100V Single Pole SIP Power Relay CPC1916Y IXYS Integrated Circuits 1: $15.414 6In Stock 1.400On Order End of Life	Mfr. Part # CPC1916Y Mouser Part # 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. #: CPC1916Y Stock: 6 Can Ship Immediately On Order: 800 Expected 12/7/2026 600 Expected 7/7/2027 Factory Lead-Time: 37 Weeks	$15.414 $13.466 $12.862 $12.418 $11.997	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 600V, 0.5mA AC Power Switch CPC1963G IXYS Integrated Circuits 1: $13.842 162In Stock End of Life	Mfr. Part # CPC1963G Mouser Part # 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	$13.842 $12.327 $11.780 $11.359 View $10.948 $10.459 $9.741 $9.638 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 400V Single Pole 400V Power Relay CPC1967J IXYS Integrated Circuits 1: $46.574 6In Stock 400On Order End of Life	Mfr. Part # CPC1967J Mouser Part # 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. #: CPC1967J Stock: 6 Can Ship Immediately On Order: 75 Expected 2/15/2027 325 Expected 6/14/2027 Factory Lead-Time: 54 Weeks	$46.574 $41.242 $39.271 $37.494	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 400V Single Pole SIP Power Relay CPC1973Y IXYS Integrated Circuits 1: $11.678 116In Stock 100Expected 6/28/2027 End of Life	Mfr. Part # CPC1973Y Mouser Part # 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	116In Stock 100Expected 6/28/2027	$11.678 $9.604 $8.579 $8.032 View $7.793 Quote	Min.: 1 Mult.: 1