MOC3021 Optocoupler Random Phase Triac Driven Optoisolator

SKU: EC0247
Fairchild Semiconductors

Product details

  1. Product type: optocoupler
  2. IC number: MOC3021
  3. IC color: black
  4. Number: 6
  5. Pin type: through hole
  6. Package: PDIP-6

**Product image is for reference purpose only. Actual product may differ from image shown.


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MOC3021 is triac driven a zero-crossing optocoupler. Optocoupler is made of light emitting and light sensing devices with no internal connection except light bean. The optoisolators allow two circuits to exchange signal without making any electrical connection. This device works on principle that light is proportional to signal and and signal is transferred to pho transistor.

Package contains

  • 1 x MOC3021 optocoupler IC


SKU: EC0247 Categories: ,

Fairchild Semiconductors

  • Reverse voltage: 3V
  • Forward voltage: 1.15 to 1.5V
  • Continuous forward current: 60mA
  • Reverse leakage current: 0.05 to 100µA
  • Total power dissipation: 300mW
  • Operating temperature: -40 to 85℃
  • Solenoid or valve control
  • Light dimmers
  • Motor speed control
  • Power control for AC and DC
  • Solid sate relay 
  1. A – Anode
  2. C – Cathode
  3. NC – not connected
  4. Triac main terminal 1
  5. NC – not connected
  6. Triac main terminal 2

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