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VO4257 Datasheet Optocoupler

Manufacturer: Vishay

Overview: VO4257/VO4258 Vishay Semiconductors Optocoupler, Phototriac Output, High dV/dt, Low Input.

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General Description

The VO4257/VO4258 phototriac consists of a GaAs IRLED optically coupled to a photosensitive non-zero crossing TRIAC packaged in a DIP-6 package.

High input sensitivity is achieved by using an emitter follower phototransistor and a cascaded SCR predriver resulting in an LED trigger current of 1.6 mA for bin D, 2.0 mA for bin H, and 3.0 mA for bin M.

The new non zero phototriac family use a proprietary dV/dt clamp resulting in a static dV/dt of greater than 5 kV/µs.

Key Features

  • High static dV/dt 5 kV/µs.
  • High input sensitivity IFT = 1.6, 2.0, and 3.0 mA e3.
  • 700 and 800 V blocking voltage.
  • 300 mA on-state current.
  • Isolation Test Voltage 5300 VRMS A1 C2 NC 3 6 MT2 5 NC 4 MT1 i179035 Agency Approvals.
  • UL1577, File No. E52744 System Code H or J, Double Protection.
  • CUL - File No. E52744, equivalent to CSA bulletin 5A.
  • DIN EN 60747-5-2 (VDE 0884) Available with Option 1.

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