Solid State Relay (SSR) from TOWARD

Bright TOWARD provides 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

transformer solid state relay

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

photo coupled solid state relay

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.

 

 

 

10A to 40A

DC-INPUT
DC-OUTPUT

tdd solid state relay

TDD Series

AC-INPUT
AC-OUTPUT

taa solid state relay

TAA Series

DC-INPUT
AC-OUTPUT

tda solid state relay

TDA Series

tdb solid state relay

TDB Series

AC-INPUT
DC-OUTPUT

tad solid state relay

TAD Series

10A to 80A

sdd solid state relay

SDD Series

saz solid state relay

SAZ 10-80A Series

sdz solid state relay

SDZ 10-80A Series

100A to 125A

saz3_100-125 solid state relay

SAZ 100-125A Series

sdz3_100-125 solid state relay

SDZ 100-125A Series

Application Specified/Unique form Solid State Relays

tc solid state relay

TC Series

TRIAC-IC type of Solid State Relay

sat_sdt solid state relay

SAT / SDT Series

3 Phase Solid State Relay

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