Toshiba Launches Photorelays in DIP8 Packages with Industry-Leading 5A Drive Current

Line-up of large-current products enhanced for replacement of mechanical relays in industrial applications

TOKYO — (BUSINESS WIRE) — July 19, 2016Toshiba Corporation’s (TOKYO: 6502) Storage & Electronic Devices Solutions Company today announced the addition of three new products to its line-up of photorelays that can replace mechanical relays in industrial applications, including an industry-leading[1] 5A large drive current for DIP8 package photorelays. Shipments of the new products, “TLP3547”, “TLP3548” and “TLP3549”, start from today.

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Toshiba: DIP8 package 5A Drive Current Photorelay "TLP3547" (Photo: Business Wire)

Toshiba: DIP8 package 5A Drive Current Photorelay "TLP3547" (Photo: Business Wire)

“TLP3547” is a 60V product with an industry-leading[1] 5A (max.) large drive current for a DIP8 package photorelay. “TLP3548” is a 400V product with 0.4A (max.) drive current and high-speed switching of 1ms (max.). “TLP3549” is the industry’s first[2] photorelay to utilize a super-junction structure MOSFET, “DTMOS series”, and is a 600V product with 0.6A (max.) drive current.

Unlike mechanical relays, photorelays have no physical contacts that are subject to wear and deterioration, an advantage that contribute to set reliability. Use of photorelays also supports development of smaller and thinner sets. In addition to this, Toshiba’s new photorelays guarantee a pulsed ON-state current that is three times larger than that of the continuous ON-state current, securing a margin for safety design.

Main Applications

  • Replacement of mechanical relays
  • Thermostats (HVAC[2])
  • Power supply control of network appliances (TCP/IP, IoT)
  • Factory automation equipment
  • AC servos
  • Inverters
  • PLC (Programmable Logic Controllers)
  • Power meters, smart meters
  • Security related products
  • ATE (Automatic Test Equipment)

Main Specifications

Package   Part




  I FT
  t ON
  t OFF
  BV S
(max.) (min.) (max.) (max.) (typ.)   (max.) (max.) (max.) (typ.)   (max.) (typ.)   (max.) (min.)
DIP8 TLP3547 1.8 60 5.0 15.0 22 50 1 5.0 0.9 3.0 0.1 1.0 2500
TLP3548 400 0.4 1.2 3000 1 1.0 0.2 1.0 0.1 1.0 2500
  TLP3549     600   0.6   1.8   1300     10   5.0   0.7   3.0   0.1   1.0   2500

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