Optocouplers / Photocouplers

.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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Optocouplers / Photocouplers

List Images

Results: 269

Applied Filters:

Mounting Style

Package / Case

Number of Channels

Output Type

Reset All

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 (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Output Type
Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay OMA160 IXYS Integrated Circuits 1: $7.763 226In Stock	Mfr. Part # OMA160 Mouser Part # 849-OMA160	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single 1-Form-A 250V 50mA relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	226In Stock	$7.763 $7.279 $6.467 $6.138 View $5.819 $5.479 $5.292 $5.116	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay PLA172P IXYS Integrated Circuits 1: $12.187 122In Stock	Mfr. Part # PLA172P Mouser Part # 849-PLA172P	IXYS Integrated Circuits	Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay Learn More about IXYS Integrated Circuits ixys pla172p relays	Datasheet	122In Stock	$12.187 $11.430 $10.156 $9.651 View $9.135 $8.355 $8.070 $7.795	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP PAA191 IXYS Integrated Circuits 1: $16.854 90In Stock	Mfr. Part # PAA191 Mouser Part # 849-PAA191	IXYS Integrated Circuits	Solid State Relays - PCB Mount DPST-NO/NO 8PIN DIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	90In Stock	$16.854 $14.987 $14.229 $13.483 View $12.736 $12.099 $11.682	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR OAA160S IXYS Integrated Circuits 1: $13.977 167In Stock	Mfr. Part # OAA160S Mouser Part # 849-OAA160S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 250V 50mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	167In Stock	$13.977 $12.429 $11.803 $11.188 View $10.639 $10.167 $9.816 $9.475	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972G IXYS Integrated Circuits 1: $3.217 424In Stock End of Life	Mfr. Part # CPC1972G Mouser Part # 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	$3.217 $2.580 $2.240 $2.185 View $1.976 $1.910 Quote	Min.: 1 Mult.: 1
Triac & SCR Output Optocouplers 250V Single Pole SIP Power Relay CPC1972GS IXYS Integrated Circuits 1: $3.217 489In Stock End of Life	Mfr. Part # CPC1972GS Mouser Part # 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	$3.217 $2.646 $2.426 $2.141 View $2.064 $2.042 $1.976 Quote	Min.: 1 Mult.: 1	SMD/SMT
Solid State Relays - PCB Mount RELAY OPTO 170MA SP-NO 6-SMD LCA125 IXYS Integrated Circuits 1: $8.377 160In Stock End of Life	Mfr. Part # LCA125 Mouser Part # 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	$8.377 $7.850 $6.972 $6.632 View $6.280 $5.885 $5.687 $5.490	Min.: 1 Mult.: 1	PCB Mount	DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143S IXYS Integrated Circuits 1: $8.652 244In Stock	Mfr. Part # PLA143S Mouser Part # 849-PLA143S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	244In Stock	$8.652 $8.103 $7.203 $6.840 View $6.478 $6.050 $5.841 $5.643	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA PLA150S IXYS Integrated Circuits 1: $9.618 137In Stock	Mfr. Part # PLA150S Mouser Part # 849-PLA150S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	137In Stock	$9.618 $8.575 $8.191 $7.126 View $7.038 $6.313 $6.181 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA193S IXYS Integrated Circuits 1: $7.060 294In Stock	Mfr. Part # PLA193S Mouser Part # 849-PLA193S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	294In Stock	$7.060 $6.291 $6.006 $5.797 View $5.589 $5.182 $5.084 $5.018 $5.007	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143STR IXYS Integrated Circuits 1: $8.312 318In Stock	Mfr. Part # PLA143STR Mouser Part # 849-PLA143STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	318In Stock	Cut Tape $8.312 $7.795 $6.928 $6.577 Reel $4.985 View $6.236 $5.852 $5.643 $4.963 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS CPC1004N IXYS Integrated Circuits 1: $2.997 12.753In Stock End of Life	Mfr. Part # CPC1004N Mouser Part # 849-CPC1004N End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	12.753In Stock	$2.997 $2.800 $2.734 $2.679 View $2.536 $2.459 $2.426 $2.394	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount SPST-NO 4PIN SOP CPC1008N IXYS Integrated Circuits 1: $2.679 73.641In Stock End of Life	Mfr. Part # CPC1008N Mouser Part # 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	73.641In Stock	$2.679 $2.492 $2.415 $2.361 View $2.064 $1.998 $1.965 $1.954	Min.: 1 Mult.: 1	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay CPC1019NTR IXYS Integrated Circuits 1: $4.293 69.781In Stock End of Life	Mfr. Part # CPC1019NTR Mouser Part # 849-CPC1019NTR End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	69.781In Stock	Cut Tape $4.293 $3.821 $3.656 $3.524 View Reel $2.921 $3.404 $3.250 $3.140 $3.030 $2.921 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay CPC1025NTR IXYS Integrated Circuits 1: $3.437 119.541In Stock End of Life	Mfr. Part # CPC1025NTR Mouser Part # 849-CPC1025NTR 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	119.541In Stock	Cut Tape $3.437 $3.217 $2.866 $2.767 Reel $2.372 View $2.668 $2.547 $2.459 $2.372 $2.185 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 1-Form-A 350V 100mA Solid State Relay CPC1035NTR IXYS Integrated Circuits 1: $3.733 9.313In Stock End of Life	Mfr. Part # CPC1035NTR Mouser Part # 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	9.313In Stock	Cut Tape $3.733 $3.491 $3.107 $2.964 View Reel $2.558 $2.877 $2.745 $2.646 $2.558 $2.558 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCB Mount	SOP-4	MOSFET
Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay CPC1330GRTR IXYS Integrated Circuits 1: $4.084 11.803In Stock End of Life	Mfr. Part # CPC1330GRTR Mouser Part # 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	11.803In Stock	Cut Tape $4.084 $3.832 $3.404 $3.228 View Reel $2.789 $3.129 $2.986 $2.888 $2.789 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-4	MOSFET
Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP CPC1984Y IXYS Integrated Circuits 1: $19.039 5.452In Stock End of Life	Mfr. Part # CPC1984Y Mouser Part # 849-CPC1984Y End of Life	IXYS Integrated Circuits	Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	5.452In Stock	$19.039 $16.963 $16.195 $15.635 View $15.064 $14.262 $13.768	Min.: 1 Mult.: 1	PCB Mount	SIP-4	MOSFET
Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay CPC1988J IXYS Integrated Circuits 1: $43.644 583In Stock End of Life	Mfr. Part # CPC1988J Mouser Part # 849-CPC1988J 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	583In Stock	$43.644 $42.568 $40.635 $39.241 View $37.890 $35.991 Quote	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	MOSFET
Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole LAA710S IXYS Integrated Circuits 1: $21.234 4.928In Stock End of Life	Mfr. Part # LAA710S Mouser Part # 849-LAA710S 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	4.928In Stock	$21.234 $18.918 $18.072 $17.436 View $16.843 $15.986 $15.437 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-8	MOSFET
Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA LCA182STR IXYS Integrated Circuits 1: $5.709 5.383In Stock End of Life	Mfr. Part # LCA182STR Mouser Part # 849-LCA182STR 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	5.383In Stock	Cut Tape $5.709 $5.347 $4.754 $4.513 View Reel $3.821 $4.293 $4.095 $3.953 $3.821 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out CPC1966YX6 IXYS Integrated Circuits 1: $15.536 2.140In Stock	Mfr. Part # CPC1966YX6 Mouser Part # 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	2.140In Stock	$15.536 $13.801 $13.121 $12.429 View $11.737 $11.155 $10.771	Min.: 1 Mult.: 1	PCB Mount	SIP-4	SCR
Solid State Relays - PCB Mount SP AC Solid State Power Switch CPC1998J IXYS Integrated Circuits 1: $23.880 3.527In Stock 7.700Expected 4/15/2027	Mfr. Part # CPC1998J Mouser Part # 849-CPC1998J	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP AC Solid State Power Switch Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	3.527In Stock 7.700Expected 4/15/2027	$23.880 $21.685 $20.653 $19.752 View $19.082 $18.259 $17.798	Min.: 1 Mult.: 1	PCB Mount	i4-PAC	SCR
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA701S IXYS Integrated Circuits 1: $11.320 6.626In Stock	Mfr. Part # LCA701S Mouser Part # 849-LCA701S	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	6.626In Stock	$11.320 $10.090 $9.629 $9.157 View $8.575 $8.202 $8.026 $7.960 Quote	Min.: 1 Mult.: 1	PCB Mount	SMD DIP-6	MOSFET
Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay LCA701STR IXYS Integrated Circuits 1: $10.815 2.664In Stock	Mfr. Part # LCA701STR Mouser Part # 849-LCA701STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP-NO SS OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	2.664In Stock	Cut Tape $10.815 $9.640 $9.201 $8.882 View Reel $7.598 $8.586 $8.158 $7.872 $7.598 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	PCB Mount		MOSFET

OptoMOS 1-Form-A (SPST-NO) Solid State Relays

Types of Optocouplers / Photocouplers

Applied Filters:

Customer Service Office

Company

Resources

Support