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Toshiba’s 1-Form-B Photorelay Expands Applications with Industry’s Highest ON-State Current Rating

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched “TLP4590A,” a 1-Form-B (normally closed) photorelay in a DIP6 package featuring an industry-leading[1] 1.2A increased ON-state current rating and a 60V OFF-state output terminal voltage rating. Volume shipments start today.

Toshiba’s 1-Form-B Photorelay Expands Applications with Industry’s Highest ON-State Current Rating

The ON-state current rating of 1.2A is the highest in the industry[1], 140% higher than Toshiba's current product, TLP4176A[2]. The maximum operating temperature rating of 110℃ facilitates easy achievement of designs with the temperature margins required for application in heating, ventilation, and air conditioning (HVAC), security systems, and building automation system equipment, where many 1-Form-B relays are used. TLP4590A also features an isolation voltage (min.) of 5,000Vrms, allowing it to be used in equipment that requires high insulation performance.

[1] For photorelays (1-Form-B) where OFF-state output terminal voltage rating is 60V, according to a survey by Toshiba (as of May 11, 2021).
[2] 2.54SOP4 package

Applications

  • HVAC
  • Security systems
  • Building automation systems
  • Industrial equipment (Programmable logic controllers, I/O interface and various sensor control, etc.)
  • Replacement of mechanical relays

Features

  • 1-Form-B
  • Industry’s highest[1] ON-state current rating: ION=1.2A
  • Small package: DIP6
  • High operating temperature rating: Topr(max)=110℃

Main Specifications

Toshiba’s 1-Form-B Photorelay Expands Applications with Industry’s Highest ON-State Current Rating

www.toshiba.com

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