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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 (SGD) Filter the results in the table by unit price based on your quantity.	Qty.
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA190S IXYS Integrated Circuits 100: $14.28 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA190S Mouser Part No 849-PAA190S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$14.28	Min.: 100 Mult.: 50
Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR PAA190STR IXYS Integrated Circuits 1,000: $12.25 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA190STR Mouser Part No 849-PAA190STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $12.25	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR PAA191STR IXYS Integrated Circuits 1: $19.90 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA191STR Mouser Part No 849-PAA191STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 400V 250mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Cut Tape $19.90 $17.69 $16.81 $15.93 View Reel $13.49 $15.03 $14.29 $13.80 $13.49 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Dual 1-Form-A 600V 100mA SSR PAA193STR IXYS Integrated Circuits 1,000: $10.53 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PAA193STR Mouser Part No 849-PAA193STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Dual 1-Form-A 600V 100mA SSR Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $10.53	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA PLA110LS IXYS Integrated Circuits 1: $11.32 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA110LS Mouser Part No 849-PLA110LS	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$11.32 $10.61 $9.42 $8.95 $8.27	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single Pole Relay 400V 150mA PLA110LSTR IXYS Integrated Circuits 1: $10.85 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA110LSTR Mouser Part No 849-PLA110LSTR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single Pole Relay 400V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Cut Tape $10.85 $10.17 $9.04 $8.60 View Reel $7.09 $8.15 $7.60 $7.34 $7.09 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA PLA132STR IXYS Integrated Circuits 1,000: $8.55 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA132STR Mouser Part No 849-PLA132STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 60V 600mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $8.55	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA140LS IXYS Integrated Circuits 1: $13.40 Non-Stocked Lead-Time 35 Weeks	Mfr. Part No. PLA140LS Mouser Part No 849-PLA140LS	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 35 Weeks	$13.40 $12.59 $11.29 $10.74 View $9.57 $8.94	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA PLA143 IXYS Integrated Circuits 1: $10.62 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA143 Mouser Part No 849-PLA143	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	Non-Stocked Lead-Time 36 Weeks	$10.62 $9.96 $8.85 $8.40 View $7.97 $7.48	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA PLA190 IXYS Integrated Circuits 1: $11.33 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA190 Mouser Part No 849-PLA190	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$11.33 $10.09 $9.64 $9.30 View $8.98 $8.24	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA PLA190S IXYS Integrated Circuits 250: $8.12 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA190S Mouser Part No 849-PLA190S	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$8.12	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA PLA190STR IXYS Integrated Circuits 1,000: $7.70 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA190STR Mouser Part No 849-PLA190STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $7.70	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA PLA191STR IXYS Integrated Circuits 1,000: $8.69 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA191STR Mouser Part No 849-PLA191STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $8.69	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount SP Open Relay 6-Pin Surface Mount PLA192ESTR IXYS Integrated Circuits 1,000: $3.39 Non-Stocked	Mfr. Part No. PLA192ESTR Mouser Part No 849-PLA192ESTR	IXYS Integrated Circuits	Solid State Relays - PCB Mount SP Open Relay 6-Pin Surface Mount Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	Reel $3.39	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount 1-Form-A, 600V 100mA 5000Vrms Isolation PLA194 IXYS Integrated Circuits 1: $9.79 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA194 Mouser Part No 849-PLA194	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A, 600V 100mA 5000Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$9.79 $9.18 $8.16 $7.74 View $7.33 $6.90	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation PLA194S IXYS Integrated Circuits 250: $6.54 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA194S Mouser Part No 849-PLA194S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$6.54	Min.: 250 Mult.: 50
Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation PLA194STR IXYS Integrated Circuits 1,000: $6.28 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. PLA194STR Mouser Part No 849-PLA194STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $6.28	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount 1-Form-A 60V 150 mA Solid State Relay XAA117STR IXYS Integrated Circuits 1,000: $2.53 Non-Stocked	Mfr. Part No. XAA117STR Mouser Part No 849-XAA117STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 1-Form-A 60V 150 mA Solid State Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked	Reel $2.53 $2.34	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay XAA170 IXYS Integrated Circuits 1: $12.84 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. XAA170 Mouser Part No 849-XAA170	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$12.84 $12.04 $10.69 $8.16 View $7.58 $7.56	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay XAA170S IXYS Integrated Circuits 250: $8.88 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. XAA170S Mouser Part No 849-XAA170S	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$8.88	Min.: 250 Mult.: 50
Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay XAA170STR IXYS Integrated Circuits 1,000: $7.21 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. XAA170STR Mouser Part No 849-XAA170STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $7.21	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount SPST-NO 6PIN SOP XCA170 IXYS Integrated Circuits 1: $6.11 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. XCA170 Mouser Part No 849-XCA170	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6PIN SOP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$6.11 $5.44 $5.20 $5.00 View $4.81 $4.60 $4.20	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount SPST-NO 6PIN SOP XCA170S IXYS Integrated Circuits 1: $6.42 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. XCA170S Mouser Part No 849-XCA170S	IXYS Integrated Circuits	Solid State Relays - PCB Mount SPST-NO 6PIN SOP Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	$6.42 $5.75 $5.15 $4.90 View $4.69 $4.64	Min.: 1 Mult.: 1
Solid State Relays - PCB Mount Single-Pole Relay 350V 100mA XCA170STR IXYS Integrated Circuits 1,000: $3.66 Non-Stocked Lead-Time 36 Weeks	Mfr. Part No. XCA170STR Mouser Part No 849-XCA170STR	IXYS Integrated Circuits	Solid State Relays - PCB Mount Single-Pole Relay 350V 100mA Learn More about IXYS Integrated Circuits littelfuse optomos 1 form a ssrs	Datasheet	Non-Stocked Lead-Time 36 Weeks	Reel $3.66	Min.: 1,000 Mult.: 1,000 : 1,000
Solid State Relays - PCB Mount RELAY, SS ICS CPC1511Y IXYS Integrated Circuits 1: $15.82 Non-Stocked Lead-Time 23 Weeks End of Life	Mfr. Part No. CPC1511Y Mouser Part No 576-CPC1511Y 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	Non-Stocked Lead-Time 23 Weeks	$15.82 $14.82 $13.18 $12.53 View $11.86 $10.85 $10.47 $10.12	Min.: 1 Mult.: 1