.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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA710STR IXYS Integrated Circuits 1: $10.04 4,817In Stock	Mfr. Part No. LCA710STR Mouser Part No 849-LCA710STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	4,817In Stock	Cut Tape $10.04 $9.41 $8.37 $7.95 View Reel $6.42 $7.54 $6.90 $6.65 $6.42 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715STR IXYS Integrated Circuits 1: $10.82 4,158In Stock 5,000Expected 2027/06/16	Mfr. Part No. LCA715STR Mouser Part No 849-LCA715STR	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	4,158In Stock 5,000Expected 2027/06/16	Cut Tape $10.82 $9.63 $9.20 $8.89 View Reel $7.41 $8.58 $8.18 $7.90 $7.41 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP CPC1006NTR IXYS Integrated Circuits 1: $2.28 31,777In Stock End of Life	Mfr. Part No. CPC1006NTR Mouser Part No 849-CPC1006NTR 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	31,777In Stock	Cut Tape $2.28 $2.14 $1.94 $1.87 Reel $1.60 View $1.81 $1.71 $1.67 $1.60 $1.48 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 250V, 1-Form-A SSR CPC1010NTR IXYS Integrated Circuits 1: $3.91 9,284In Stock 6,000Expected 2027/05/24 End of Life	Mfr. Part No. CPC1010NTR Mouser Part No 849-CPC1010NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V, 1-Form-A SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	9,284In Stock 6,000Expected 2027/05/24	Cut Tape $3.91 $3.48 $3.33 $3.19 View Reel $2.73 $3.08 $2.94 $2.84 $2.74 $2.73 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 100V 100mA Solid State Relay CPC1016N IXYS Integrated Circuits 1: $3.21 1,646In Stock End of Life	Mfr. Part No. CPC1016N Mouser Part No 849-CPC1016N 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	1,646In Stock	$3.21 $3.01 $2.67 $2.58 View $2.49 $2.37 $2.29 $2.21	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPNO RELAY CPC1017N IXYS Integrated Circuits 1: $1.07 189,810In Stock 120,000Expected 2027/05/12 End of Life	Mfr. Part No. CPC1017N Mouser Part No 849-CPC1017N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPNO RELAY Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	189,810In Stock 120,000Expected 2027/05/12	$1.07	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A CPC1020N IXYS Integrated Circuits 1: $6.72 34,160In Stock End of Life	Mfr. Part No. CPC1020N Mouser Part No 849-CPC1020N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	34,160In Stock	$6.72 $6.00 $5.68 $5.43 View $5.19 $4.90 $4.45	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay CPC1020NTR IXYS Integrated Circuits 1: $6.06 107,781In Stock End of Life	Mfr. Part No. CPC1020NTR Mouser Part No 849-CPC1020NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	107,781In Stock	Cut Tape $6.06 $5.40 $5.16 $4.98 View Reel $4.26 $4.81 $4.58 $4.42 $4.33 $4.26 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1025N IXYS Integrated Circuits 1: $3.24 7,390In Stock 400Expected 2027/07/30 End of Life	Mfr. Part No. CPC1025N Mouser Part No 849-CPC1025N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	7,390In Stock 400Expected 2027/07/30	$3.24 $2.90 $2.76 $2.66 View $2.55 $2.43 $2.35 $2.27	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1230N IXYS Integrated Circuits 1: $3.76 1,753In Stock End of Life	Mfr. Part No. CPC1230N Mouser Part No 849-CPC1230N 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	1,753In Stock	$3.76 $3.43 $3.16 $3.04 View $2.92 $2.78 $2.70 $2.50 $2.42	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 350V 120mA Solid State Relay CPC1230NTR IXYS Integrated Circuits 1: $3.48 2,649In Stock End of Life	Mfr. Part No. CPC1230NTR Mouser Part No 849-CPC1230NTR 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	2,649In Stock	Cut Tape $3.48 $3.26 $2.90 $2.77 View Reel $2.40 $2.67 $2.56 $2.47 $2.40 $2.40 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Solid State Relays - PCB Mount DC Only Single Pole i4-PAC CPC1708J IXYS Integrated Circuits 1: $19.28 527In Stock End of Life	Mfr. Part No. CPC1708J Mouser Part No 849-CPC1708J 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	527In Stock	$19.28 $17.18 $16.40 $15.83 View $15.29 $14.46 $13.96 $13.51	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 250V Single Pole DC Power Relay CPC1726Y IXYS Integrated Circuits 1: $8.40 572In Stock End of Life	Mfr. Part No. CPC1726Y Mouser Part No 849-CPC1726Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 250V Single Pole DC Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	572In Stock	$8.40 $7.86 $6.99 $6.64 View $6.29 $5.87 $5.68 $5.47	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay CPC1907B IXYS Integrated Circuits 1: $12.03 13,117In Stock 17,625Expected 2027/02/12 End of Life	Mfr. Part No. CPC1907B Mouser Part No 849-CPC1907B End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	13,117In Stock 17,625Expected 2027/02/12	$12.03 $10.70 $8.70 $8.41 View $8.15 $7.90 $7.85	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SP, NO ISOPLUS-264 CPC1927J IXYS Integrated Circuits 1: $31.92 218In 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	218In Stock	$31.92 $28.55 $27.26 $26.32 View $25.32 $22.32	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay CPC1968J IXYS Integrated Circuits 1: $45.38 921In Stock 375Expected 2026/11/30 End of Life	Mfr. Part No. CPC1968J Mouser Part No 849-CPC1968J End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	921In Stock 375Expected 2026/11/30	$45.38 $42.47 $38.59	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole LAA110LSTR IXYS Integrated Circuits 1: $8.98 698In Stock End of Life	Mfr. Part No. LAA110LSTR Mouser Part No 849-LAA110LSTR 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	698In Stock	Cut Tape $8.98 $8.01 $7.65 $7.39 Reel $6.29 View $7.13 $6.76 $6.52 $5.83 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA110STR IXYS Integrated Circuits 1: $4.07 11,199In Stock 4,000Expected 2027/01/13 End of Life	Mfr. Part No. LCA110STR Mouser Part No 849-LCA110STR 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	11,199In Stock 4,000Expected 2027/01/13	Cut Tape $4.07 $3.63 $3.47 $3.34 Reel $2.78 View $3.23 $3.08 $2.98 $2.71 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA LCA127STR IXYS Integrated Circuits 1: $7.39 1,404In Stock End of Life	Mfr. Part No. LCA127STR Mouser Part No 849-LCA127STR 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	1,404In Stock	Cut Tape $7.39 $6.92 $6.15 $5.84 View Reel $4.84 $5.54 $5.19 $5.01 $4.84 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount 8-Pin Power SOIC CPC1966B IXYS Integrated Circuits 1: $9.83 1,905In Stock 1,725Expected 2027/03/24	Mfr. Part No. CPC1966B Mouser Part No 849-CPC1966B	IXYS Integrated Circuits	Solid State Relays - PCB Mount 8-Pin Power SOIC Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	1,905In Stock 1,725Expected 2027/03/24	$9.83 $8.76 $8.35 $8.06 View $7.77 $7.27 $7.12 $6.94	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount AC Switch 3A, 600V CPC1966Y IXYS Integrated Circuits 1: $8.61 456In Stock 7,650Expected 2026/11/23	Mfr. Part No. CPC1966Y Mouser Part No 849-CPC1966Y	IXYS Integrated Circuits	Solid State Relays - PCB Mount AC Switch 3A, 600V Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	456In Stock 7,650Expected 2026/11/23	$8.61 $7.66 $7.09 $7.06 $6.84	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay CPC1976Y IXYS Integrated Circuits 1: $7.73 946In Stock 5,975On Order	Mfr. Part No. CPC1976Y Mouser Part No 849-CPC1976Y	IXYS Integrated Circuits	Triac & SCR Output Optocouplers 600V Single Pole SIP Power Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	946In Stock 5,975On Order On Order Ship Dates Mfr. No: CPC1976Y Stock: 946 Can Dispatch Immediately On Order: 1,750 Expected 2026/10/22 4,225 Expected 2027/01/08 Factory Lead Time: 23 Weeks	$7.73 $6.36 $5.54 $5.20	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET LCA712S IXYS Integrated Circuits 1: $11.46 283In Stock	Mfr. Part No. LCA712S Mouser Part No 849-LCA712S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	283In Stock	$11.46 $10.18 $9.68 $9.16 View $8.72 $8.33 $8.04 $7.76	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 60V 2200mA SSR w/optic MOSFET LCA715 IXYS Integrated Circuits 1: $11.99 833In Stock	Mfr. Part No. LCA715 Mouser Part No 849-LCA715	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	833In Stock	$11.99 $10.68 $10.16 $9.71 View $9.32 $8.90 $8.59 $8.29 Quote	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay LCA717STR IXYS Integrated Circuits 1: $10.40 812In Stock 2,000Expected 2027/07/15	Mfr. Part No. LCA717STR Mouser Part No 849-LCA717STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form 30V 2000 mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	812In Stock 2,000Expected 2027/07/15	Cut Tape $10.40 $9.75 $8.66 $8.23 View Reel $6.65 $7.80 $7.13 $6.90 $6.65 MouseReel Available	Min.: 1 Mult.: 1 : 1,000