.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 (298)

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; }

Select a category below to see filtering options and narrow down your search.

Part #

Solid State Relays - PCB Mount SPST-NO 6PIN SMD

PLA140S
IXYS Integrated Circuits
1: Rp88.061
208In Stock
150Expected 23/04/2026

Mfr. Part No.
PLA140S

Mouser Part No
849-PLA140S

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN SMD

Learn More

Datasheet

208In Stock

150Expected 23/04/2026

Rp88.061

Rp75.035

Rp72.283

Rp69.898

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

PLA143
IXYS Integrated Circuits
1: Rp71.733
30In Stock

Mfr. Part No.
PLA143

Mouser Part No
849-PLA143

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

Learn More

Datasheet

30In Stock

Rp71.733

Rp67.330

Rp62.193

Rp52.653

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

PLA143S
IXYS Integrated Circuits
1: Rp69.715
244In Stock

Mfr. Part No.
PLA143S

Mouser Part No
849-PLA143S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

Learn More

Datasheet

244In Stock

Rp69.715

Rp57.423

Rp55.038

Rp48.617

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA

PLA150S
IXYS Integrated Circuits
1: Rp75.586
137In Stock

Mfr. Part No.
PLA150S

Mouser Part No
849-PLA150S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 250V 250mA

Learn More

Datasheet

137In Stock

Rp75.586

Rp74.118

Rp70.816

Rp68.064

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

PLA160
IXYS Integrated Circuits
1: Rp82.007
219In Stock

Mfr. Part No.
PLA160

Mouser Part No
849-PLA160

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

Learn More

Datasheet

219In Stock

Rp82.007

Rp73.201

Rp69.898

Rp63.294

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA

PLA160S
IXYS Integrated Circuits
1: Rp82.007
294In Stock

Mfr. Part No.
PLA160S

Mouser Part No
849-PLA160S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 300V 50mA

Learn More

Datasheet

294In Stock

Rp82.007

Rp73.201

Rp69.898

Rp65.495

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA

PLA170S
IXYS Integrated Circuits
1: Rp63.477
251In Stock
700Expected 25/06/2026

Mfr. Part No.
PLA170S

Mouser Part No
849-PLA170S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 800V 100mA

Learn More

Datasheet

251In Stock

700Expected 25/06/2026

Rp63.477

Rp56.689

Rp54.121

Rp52.103

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA

PLA171PTR
IXYS Integrated Circuits
1: Rp67.146
16In Stock
1.000Expected 16/06/2026

Mfr. Part No.
PLA171PTR

Mouser Part No
849-PLA171PTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single Pole 1-Form-A, 250V,250mA

Learn More

Datasheet

16In Stock

1.000Expected 16/06/2026

Cut Tape

Rp67.146

Rp59.808

Rp57.240

Rp55.038

Reel

Rp47.333

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay

PLA172P
IXYS Integrated Circuits
1: Rp101.820
130In Stock

Mfr. Part No.
PLA172P

Mouser Part No
849-PLA172P

IXYS Integrated Circuits

Solid State Relays - PCB Mount 800V Normally-Open 6-Pin OptoMOS Relay

Learn More

Datasheet

130In Stock

Rp101.820

Rp95.399

Rp84.759

Rp80.722

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA

PLA190S
IXYS Integrated Circuits
1: Rp79.438
330In Stock

Mfr. Part No.
PLA190S

Mouser Part No
849-PLA190S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 150mA

Learn More

Datasheet

330In Stock

Rp79.438

Rp70.816

Rp67.697

Rp65.128

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

PLA191
IXYS Integrated Circuits
1: Rp94.482
34In Stock

Mfr. Part No.
PLA191

Mouser Part No
849-PLA191

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

Learn More

Datasheet

34In Stock

Rp94.482

Rp74.852

Rp69.164

Rp61.092

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

PLA191S
IXYS Integrated Circuits
1: Rp90.079
218In Stock

Mfr. Part No.
PLA191S

Mouser Part No
849-PLA191S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 400V 250mA

Learn More

Datasheet

218In Stock

Rp90.079

Rp80.355

Rp76.870

Rp66.229

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA

PLA192S
IXYS Integrated Circuits
1: Rp66.046
379In Stock

Mfr. Part No.
PLA192S

Mouser Part No
849-PLA192S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 150mA

Learn More

Datasheet

379In Stock

Rp66.046

Rp53.937

Rp53.020

Rp49.167

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

PLA193
IXYS Integrated Circuits
1: Rp60.909
61In Stock

Mfr. Part No.
PLA193

Mouser Part No
849-PLA193

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN DIP

Learn More

Datasheet

61In Stock

Rp60.909

Rp50.085

Rp48.250

Rp44.764

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

PLA193S
IXYS Integrated Circuits
1: Rp62.743
294In Stock

Mfr. Part No.
PLA193S

Mouser Part No
849-PLA193S

IXYS Integrated Circuits

Solid State Relays - PCB Mount Single-Pole Relay 600V 100mA

Learn More

Datasheet

294In Stock

Rp62.743

Rp49.901

Rp47.516

Rp44.948

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A 600V 100mA 5000Vrms Isolation

PLA194S
IXYS Integrated Circuits
1: Rp66.046
5In Stock

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

Datasheet

5In Stock

Rp66.046

Rp52.286

Rp49.351

Rp43.847

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 350V 100mA Dual-Sing OptoMOS Relay

XAA170
IXYS Integrated Circuits
1: Rp86.593
90In Stock

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

Datasheet

90In Stock

Rp86.593

Rp81.273

Rp79.438

Rp62.376

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount SPST-NO 6PIN SOP

XCA170
IXYS Integrated Circuits
1: Rp42.379
104In Stock

Mfr. Part No.
XCA170

Mouser Part No
849-XCA170

IXYS Integrated Circuits

Solid State Relays - PCB Mount SPST-NO 6PIN SOP

Learn More

Datasheet

104In Stock

Rp42.379

Rp37.976

Rp36.325

Rp34.857

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out

CPC1964BX6
IXYS Integrated Circuits
1: Rp88.061
15In Stock

Mfr. Part No.
CPC1964BX6

Mouser Part No
849-CPC1964BX6

IXYS Integrated Circuits

Solid State Relays - PCB Mount AC SS Power Switch Dual Power SCR Out

Learn More

Datasheet

15In Stock

Rp88.061

Rp60.909

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

CPC1510GSTR
IXYS Integrated Circuits
1: Rp62.560
14.780On Order

Mfr. Part No.
CPC1510GSTR

Mouser Part No
849-CPC1510GSTR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

Learn More

Datasheet

14.780On Order

Cut Tape

Rp62.560

Rp57.240

Rp52.653

Rp50.818

View

Reel

Rp43.663

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

Solid State Relays - PCB Mount AC Switch 3A, 600V

CPC1966Y
IXYS Integrated Circuits
1: Rp81.456
8.465Expected 16/04/2026

Mfr. Part No.
CPC1966Y

Mouser Part No
849-CPC1966Y

IXYS Integrated Circuits

Solid State Relays - PCB Mount AC Switch 3A, 600V

Learn More

Datasheet

8.465Expected 16/04/2026

Rp81.456

Rp72.650

Rp67.146

Rp64.761

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET

LCA712STR
IXYS Integrated Circuits
1: Rp97.234
5.000Expected 02/04/2026

Mfr. Part No.
LCA712STR

Mouser Part No
849-LCA712STR

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 60V 1000 mA SSR w/optic MOSFET

Learn More

Datasheet

5.000Expected 02/04/2026

Cut Tape

Rp97.234

Rp89.712

Rp85.676

Rp82.740

Reel

Rp66.413

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1.000

Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay

CPC1965G
IXYS Integrated Circuits
1: Rp80.355
14.426On Order

Mfr. Part No.
CPC1965G

Mouser Part No
849-CPC1965G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V, 1A AC Solid State Relay

Learn More

Datasheet

14.426On Order

Rp80.355

Rp71.549

Rp67.146

Rp65.495

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

CPC1393G
IXYS Integrated Circuits
1: Rp44.948
1.200Expected 17/08/2026

Mfr. Part No.
CPC1393G

Mouser Part No
849-CPC1393G

IXYS Integrated Circuits

Solid State Relays - PCB Mount 600V 90mA Single OptoMOS Relay

Learn More

Datasheet

1.200Expected 17/08/2026

Rp44.948

Rp40.178

Rp38.343

Rp37.059

View

Min.: 1
Mult.: 1

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

CPC1510GS
IXYS Integrated Circuits
1: Rp64.578
2.100Expected 19/05/2026

Mfr. Part No.
CPC1510GS

Mouser Part No
849-CPC1510GS

IXYS Integrated Circuits

Solid State Relays - PCB Mount 1-Form-A 250V 200mA Solid State Relay

Learn More

Datasheet

2.100Expected 19/05/2026

Rp64.578

Rp53.203

Rp51.369

Rp48.984

Rp47.333

Min.: 1
Mult.: 1

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

All Results (298)

Customer Service Office

Company

Resources

Support

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

All Results (298)

Electromechanical

Opto-electronics