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.

Mga Resulta: 288
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Series
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V, 1-Form-A SSR
Datasheet
6,304May Stock
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 1-Form-A 250V 200mA Solid State Relay
Datasheet
714May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 200 mA 250 VDC 1 Form A (SPST-NO) 1.15 VDC to 1.5 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) CPC1510
IXYS Integrated Circuits Solid State Relays - PCB Mount 1000V Single Pole 1000V Power Relay
Datasheet
185May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 650 mA 1 kVDC 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) 20.879 mm (0.822 in) CPC1986
IXYS Integrated Circuits Solid State Relays - PCB Mount DC Only Single Pole i4-PAC
Datasheet
170May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 1.65 A 600 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) CPC1779
IXYS Integrated Circuits Solid State Relays - PCB Mount 350V 120mA Single OptoMOS Relay
Datasheet
259May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 120 mA 350 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 VDC DIP-4 MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1330
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 250V 250mA SSR
Datasheet
181May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 250 mA 250 VDC 2 Form A (DPST-NO) 900 mVDC to 1.4 VDC 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) PAA150
IXYS Integrated Circuits Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA
Datasheet
321May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

Reel, Cut Tape, MouseReel PCB Mount 100 mA 600 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) PLA143
IXYS Integrated Circuits Solid State Relays - PCB Mount Dual 1-Form-A 400V 150mA SSR
Datasheet
241May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 150 mA 400 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) PAA110
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 400mA Solid State Relay
Datasheet
72,194May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 2,000

Reel, Cut Tape, MouseReel PCB Mount 400 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) CPC1014
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 100mA Solid State Relay
Datasheet
93,765May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 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 600mA Solid State Relay
Datasheet
21,380May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 2,000

Reel, Cut Tape, MouseReel PCB Mount 600 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) CPC1018
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 750mA Solid State Relay
Datasheet
13,217May Stock
Min.: 1
Mult.: 1

Tube 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 1-Form-A 60V 750mA Solid State Relay
Datasheet
53,905May Stock
22,000Inaasahan 3/23/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 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 1-Form-A 60V 700mA Solid State Relay
Datasheet
81,308May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 700 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) CPC1002
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 60V 700mA Solid State Relay
Datasheet
98,556May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 2,000

Reel, Cut Tape, MouseReel PCB Mount 700 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) CPC1002
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 100V 150mA Solid State Relay
Datasheet
20,881May Stock
11,985Inaasahan 5/14/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 2,000

Reel, Cut Tape, MouseReel PCB Mount 150 mA 100 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) CPC1008
IXYS Integrated Circuits Solid State Relays - PCB Mount 250V, 1-Form-A SSR
Datasheet
16,664May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 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 1-Form-A 100V 100mA Solid State Relay
Datasheet
16,497May Stock
4,000Inaasahan 4/28/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 2,000

Reel, Cut Tape, MouseReel PCB Mount 100 mA 100 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) CPC1016
IXYS Integrated Circuits Solid State Relays - PCB Mount 1-Form-A 400V 120mA Solid State Relay
Datasheet
152,401May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 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 350V 120mA Single OptoMOS Relay
Datasheet
13,801May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 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-4 MOSFET 50 mA - 40 C + 85 C 6.35 mm (0.25 in) 4.572 mm (0.18 in) 3.3 mm (0.13 in) CPC1330
IXYS Integrated Circuits Solid State Relays - PCB Mount 100V Single Pole 100V Power Relay
Datasheet
6,665May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 5.25 A 100 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 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) CPC1918
IXYS Integrated Circuits Solid State Relays - PCB Mount SPST iso PLUS-264
Datasheet
1,056May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 1.4 A 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.4 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) CPC1979
IXYS Integrated Circuits Solid State Relays - PCB Mount RELAY, SS ICS
Datasheet
8,031May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 500 mA 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SIP-4 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) CPC1983
IXYS Integrated Circuits Solid State Relays - PCB Mount 600V AC/DC 1-FORM-A ENHANCED ISO PSIP
Datasheet
6,083May Stock
Min.: 1
Mult.: 1

Tube PCB Mount 1 A 600 VDC 1 Form A (SPST-NO) 900 mVDC to 1.5 VDC SIP-4 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) CPC1984Y
IXYS Integrated Circuits Solid State Relays - PCB Mount SP AC Solid State Power Switch
Datasheet
5,399May Stock
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