Solid State Relay (SSR) from TOWARD

Bright TOWARD provides a variety of Semiconductor switch products from High Power Solid State Relay to defacto standard SIP/DIP packaged small Solid State Relay.

Solid State Relay (SSR) is Non-contacts relay constructed by semiconductor, often described in Semiconductor Relay vs Electromechanical Relay.  There are two types of SSR, 1) Transformer-coupled SSR and 2) Photo-Coupled SSR.

Transformer-coupled SSR

The control signal is applied through a DC-AC converter to the primary transformer, and the secondary is used to trigger TRIAC or MOSFET.  In this type, the degree of input-output isolation depends on the design of the transformer.

Photo-coupled SSR

The control signal is applied to a light or infrared source, and the radiation from that source is detected in a photosensitive semiconductor.  The output of the photo-sensitive device triggers the TRIAC or MOSFET.  In this type, input-output isolation is optically secured, and electrical isolation is excellent.


100A to 125A (SAZ100-125A, SDZ100-125A Series) TOWARD Solid State Relay

SAZ100-125A Series

Description

Photo-coupled Solid State Relay, AC input AC output, Input LED indicator, High dv/dt, and high blocking voltage, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection.

  • Input voltage: 90 to 280VAC
  • Rated Load Voltage: 24 to 280VAC
  • Rated Load Current: 100A / 125A
  • Insulation: 2000VAC

SDZ100-125A Series

Description

Photo-coupled Solid State Relay, DC input AC output, Input LED indicator, High dv/dt, and high blocking voltage, TTL and CMOS compatible control, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection.

  • Input voltage: 3 to 32VDC
  • Rated Load Voltage: 24 to 280VAC
  • Rated Load Current: 100A / 125A
  • Insulation: 2000VAC

10A to 80A (SAZ10-80A, SDZ10-80A Series) TOWARD Solid State Relay

SAZ10-80A Series

Description

Photo-coupled Solid State Relay, AC input AC output, Input LED indicator, High dv/dt, and high blocking voltage, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection.  For Lamp switching, Motor load switching.

  • Input voltage: 90 to 280VAC
  • Rated Load Voltage: 24 to 280VAC (SAZ2), 48 to 480VAC (SAZ3), 48 to 600VAC (SAZ6)
  • Rated Load Current: 10A to 50A
  • Insulation: 2000VAC

SDZ10-80A Series

Description

Photo-coupled Solid State Relay, DC input AC output, Input LED indicator, High dv/dt, and high blocking voltage, TTL and CMOS compatible control, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection.  For Lamp switching, Motor load switching.

  • Input voltage: 3 to 32VDC
  • Rated Load Voltage: 24 to 280VAC (SDZ2), 48 to 480VAC (SDZ3), 48 to 600VAC (SDZ6)
  • Rated Load Current: 10A to 50A
  • Insulation: 2000VAC


10A to 40A (TDD/SDD, TAA, TDA, TAD, TDB Series) TOWARD Solid State Relay

TDD / SDD Series

Description

Transformer-coupled Solid State Relay, DC input DC output, Input LED indicator, High dv/dt, and high blocking voltage, TTL and CMOS compatible control, High surge rating, MOSFET/IGBT output.  For Lamp switching, Motor load switching.

TAA Series

Description

Photo-coupled Solid State Relay, AC input AC output, Input LED indicator, High dv/dt and high blocking voltage, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection, VDE CERTIFIED.

TDA Series

Description

Photo-coupled Solid State Relay, DC input AC output, Input LED indicator, High dv/dt and high blocking voltage, TTL and CMOS compatible control, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection, VDE CERTIFIED.

TAD Series

Description

Photo-coupled Solid State Relay, AC input DC output, Input LED indicator, High dv/dt and high blocking voltage, MOSFET output.

TDB Series

Description

Photo-coupled Solid State Relay, Normally Close Type (NC), DC input AC output, Input LED indicator, High dv/dt and high blocking voltage, TTL and CMOS compatible control, Zero voltage turn-on, zero current turn-off, High surge rating, Output snubber circuit protection.


3 Phase (SAT, SDT Series) TOWARD Solid State Relay

SAT Series

Description

10A to 100A.  AC input AC output, With internal RC soak up network, Zero voltage turn-on, zero current turn-off, Optically isolated input and output, Two-way SCR output, Liquid epoxy-filled, metal(Cu) base.  For Motor Control.

SDT Series

Description

10A to 100A.  DC input AC output, With internal RC soak up network, Zero voltage turn-on, zero current turn-off, Optically isolated input and output, Two-way SCR output, Liquid epoxy-filled, metal(Cu) base.  For Motor Control.

TRIAC IC (TC Series) TOWARD Solid State Relay

TC Series

Description

240VAC output.  DC input AC output, Small DIP 8 pin package, High I/O Isolation Voltage 5000 VAC between input and output, 600VDC peak Off-State Output Voltage, Random-on and Zero-on types are available, Suitable for 110/220VAC Circuit, Power TRIAC driver, Household appliance, Programmable controller.


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