DB3 - Diac Trigger Diode


Sale price Rs. 1.69 (excl.18% GST)
Rs. 2.00


DB3 is a DIAC, functions as a trigger diode with a fixed voltage reference. The device is used in conjunction with Triac to simplify the gate control circuit and as a starting element in fluorescent bulb ballast.

Technical Specification:

  • Breakover Voltage: 28v to 36v
  • Typical Breakover voltage: 32v
  • Output voltage: 5v
  • Breakover current: 50µA
  • Leakage current: 10µA
  • Peak current: 0.30A
  • Rise time: 2µs
  • Operating junction temperature: -40℃ to +125℃


  • Low Forward Voltage Drop
  • High Current Capability
  • High Reliability
  • High Surge Current Capability


  • Triggering device for Triac or SCR based motor / light dimmer
  • 32 V trigger device for oscillator circuit
  • Start up triggering in lighting ballast for CFL, TL or LED lamps

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