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.

Results: 167
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Packaging Mounting Style Load Current Rating Load Voltage Rating Relay Contact Form Control Voltage Range Package/Case Output Type Input Current Minimum Operating Temperature Maximum Operating Temperature Length Width Height Series
IXYS Integrated Circuits Solid State Relays - PCB Mount 60V 1000mA Dual Single-Pole 4.928In Stock
16,63 €
14,82 €
14,16 €
13,66 €
Min.: 1
Mult.: 1
Tube PCB Mount 1 A 60 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA710
IXYS Integrated Circuits Solid State Relays - PCB Mount SP AC Solid State Power Switch 3.155In Stock
7.700Expected 4/15/2027
18,71 €
16,99 €
16,18 €
15,47 €
Min.: 1
Mult.: 1
Tube PCB Mount 5 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC i4-PAC SCR 50 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 20.879 mm (0.822 in) CPC1998
IXYS Integrated Circuits Solid State Relays - PCB Mount SS Relay SP, NO 4-PIN SOP OptoMOS 6.600In Stock
9.000Expected 7/5/2027
3,15 €
2,81 €
2,66 €
2,56 €
Min.: 1
Mult.: 1
Tube PCB Mount 300 mA 100 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 110 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1004
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A SSR 4-Pin SOP 30.057In Stock
Cut Tape
1,84 €
1,77 €
1,69 €
1,63 €
Reel
1,31 €
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 75 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1006
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V, 1-Form-A SSR 3.597In Stock
3,52 €
3,14 €
2,99 €
2,87 €
Min.: 1
Mult.: 1
Tube PCB Mount 170 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC10
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V, 1-Form-A SSR 6.979In Stock
10.000Expected 7/6/2027
Cut Tape
3,36 €
2,99 €
2,86 €
2,74 €
Reel
2,35 €
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 170 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC10
IXYS Integrated Circuits Solid State Relays - PCB Mount SPNO RELAY 186.425In Stock
120.000Expected 2/22/2027
0,918 €
Min.: 1
Mult.: 1
Tube PCB Mount 100 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1017
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay 16.497In Stock
213.788On Order
Cut Tape
1,76 €
1,57 €
1,51 €
1,45 €
Reel
1,16 €
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 100 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1017
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay 60.687In Stock
Cut Tape
3,36 €
2,99 €
2,86 €
2,75 €
Reel
2,29 €
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 750 mA 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC1019
IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY OPTO NSOIC4 30V 1.2A 34.042In Stock
5,78 €
5,16 €
4,88 €
4,67 €
Min.: 1
Mult.: 1
Tube PCB Mount 1.2 A 30 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC1020
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 30V 1200V Solid State Relay 101.556In Stock
Cut Tape
5,21 €
4,64 €
4,44 €
4,28 €
Reel
3,66 €
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 1.2 A 30 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.03 mm (0.08 in) CPC1020
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay 7.390In Stock
400Expected 12/25/2026
2,79 €
2,49 €
2,37 €
2,29 €
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1025
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay 63.986In Stock
Cut Tape
2,67 €
2,37 €
2,26 €
2,18 €
Reel
1,72 €
Min.: 1
Mult.: 1
: 2.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 400 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1025
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST-NO 4PIN SOP 1.328In Stock
3,23 €
2,95 €
2,71 €
2,57 €
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOP-4 MOSFET 50 mA - 40 C + 85 C 4.089 mm (0.161 in) 3.81 mm (0.15 in) 2.184 mm (0.086 in) CPC1230
IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC 492In Stock
16,58 €
14,77 €
14,10 €
13,61 €
Min.: 1
Mult.: 1
Tube PCB Mount 4 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.56 VDC i4-PAC MOSFET 50 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 20.879 mm (0.822 in) CPC1708
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V Single Pole DC Power Relay 572In Stock
7,22 €
6,76 €
6,01 €
5,71 €
Min.: 1
Mult.: 1
Tube PCB Mount 1 A 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC i4-PAC MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1726
IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC 344In Stock
19,77 €
18,92 €
16,07 €
14,06 €
Min.: 1
Mult.: 1
Tube PCB Mount 3.4 A 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC i4-PAC MOSFET 100 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 26.162 mm (1.03 in) CPC1727
IXYS Integrated Circuits Solid State Relays - PCB Mount 8Pin Single Pole NOR Mally Open SS Relay 9.828In Stock
17.625Expected 2/12/2027
10,34 €
9,20 €
8,75 €
8,38 €
Min.: 1
Mult.: 1
Tube PCB Mount 6 A 60 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SOIC-8 MOSFET 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1907
IXYS Integrated Circuits Solid State Relays - PCB Mount 5 A 500 V Optic Iso Pwr Sol State Relay 1.296In Stock
39,02 €
36,52 €
33,18 €
Min.: 1
Mult.: 1
Tube PCB Mount 2 A 500 VDC 1 Form A (SPST-NO) 900 mVDC to 1.56 VDC ISOPLUS264 MOSFET 100 mA - 40 C + 85 C 19.914 mm (0.784 in) 5.029 mm (0.198 in) 26.162 mm (1.03 in) CPC1968
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Dual Single-Pole 698In Stock
Cut Tape
7,72 €
6,89 €
6,58 €
6,35 €
Reel
5,41 €
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC SMD DIP-8 MOSFET 50 mA - 40 C + 85 C 9.652 mm (0.38 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LAA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA 1.116In Stock
3,77 €
3,51 €
3,35 €
3,24 €
Min.: 1
Mult.: 1
Tube PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 350V 120mA 8.782In Stock
4.000Expected 8/9/2027
Cut Tape
3,50 €
3,12 €
2,98 €
2,87 €
Reel
2,41 €
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA110
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 250V 200mA 1.404In Stock
Cut Tape
5,95 €
5,31 €
5,07 €
4,89 €
Reel
4,18 €
Min.: 1
Mult.: 1
: 1.000
Reel, Cut Tape, MouseReel PCB Mount 200 mA 250 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SMD DIP-6 MOSFET 50 mA - 40 C + 85 C 8.382 mm (0.33 in) 6.35 mm (0.25 in) 3.302 mm (0.13 in) LCA127
IXYS Integrated Circuits Solid State Relays - PCB Mount 8-Pin Power SOIC 1.785In Stock
1.725Expected 3/24/2027
8,45 €
7,53 €
7,18 €
6,93 €
Min.: 1
Mult.: 1
Tube PCB Mount 3 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC ISOPLUS264 SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1966
IXYS Integrated Circuits Solid State Relays - PCB Mount AC Switch 3A, 600V 374In Stock
7.650On Order
7,40 €
6,59 €
6,10 €
5,91 €
5,67 €
Min.: 1
Mult.: 1
Tube PCB Mount 3 A 20 VAC to 240 VAC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC SIP-4 SCR 50 mA - 40 C + 85 C 21.082 mm (0.83 in) 3.302 mm (0.13 in) 10.16 mm (0.4 in) CPC1966