Diodes Incorporated
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PT8A3300B (Obsolete)

Ceramic Heating Controller

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Product Description

The PT8A330X is specially designed for ceramic heating control system. It can set the temperature continuously .It can drive SCR directly and detect the heater temperature without extra temperature sensor. It will start heat after power on and has one LED for working state indication. Build-in timer will automatically power off after turn on for 1 hour @ 60Hz or 1.2 hour @ 50Hz (for PT8A3300/1).


  • High watt density Alumina Heaters
  • High current pulse trigger for SCR
  • Quickly Heating-Up and Quickly Lost-Heat-Recover
  • Dual voltage 120VAC / 240VAC
  • Internal 5v zener
  • Insensitive to environment temperature
  • Auto power off(Optional)
  • DIP-8 and SOIC-8 package


  • Ceramic heating controller

Product Specifications

Product Parameters

Heating Element MCH
LED @ Heater On Flash
Auto Off Yes
On/Off Key Slide key in AC line
Driver Type SCR

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