.  . Diodes, Zener Diodes . 1N4742A 12V 1W ZENER Diode 5% Silicon Glass Axial Lead DO-41 5 Pack

1N4742A 12V 1W ZENER Diode 5% Silicon Glass Axial Lead DO-41 5 Pack

$1.75 (AUD)

1N4742A 12V 1W ZENER Diode s a special type of diode designed to reliably allow current to flow “backwards” when a certain set reverse voltage, known as the Zener voltage, is reached.

15 in stock

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2 + 5%
5 + 10%
SKU: TS-C120 Categories: ,


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1N4742A 12V 1W ZENER Diode 5% is a special type of diode designed to reliably allow current to flow “backwards” when a certain set reverse voltage, known as the Zener voltage, is reached.

Zener diodes are manufactured with a great variety of Zener voltages, and some are even variable. Some Zener diodes have a sharp, highly doped p–n junction with a low Zener voltage. In this case, the reverse conduction occurs due to electron quantum tunnelling in the short space between p and n regions known as the Zener effect after Clarence Zener. Diodes with a higher Zener voltage have a more gradual junction, and their mode of operation also involves avalanche breakdown. Both breakdown types are present in Zener diodes, with the Zener effect predominating at lower voltages and avalanche breakdown at higher voltages.

 

Specifications:

  • Zener Voltage Vz Typ: 12v
  • Standard VZ Tolerance is 5%
  • Power Dissipation Pd: 1000mW
  • Current – Reverse Leakage @ Vr 2 uA @ 1v
  • Lead-Free Finish, RoHS Compliant

Mechanical Data:

  • 1 Watt Zener Diodes
  • Silicon Glass
  • Body Length 4.5mm
  • Body Diameter: 2.8mm
  • Lead Length: 28.00mm
  • Lead Diameter: 0.86mm
  • Total Length: 60.00mm 
  • DO-41
  • Operating Temperature: -65oC to +175oC
  • Storage Temperature: -65oC to +200oC 
  • For capacities load, derate current by 20%
  • Weight: 0.309 grams (Approx.) 
Package Content:  5 x 1 Watt Zener Diodes

Development  Resources: demo codes, schematics, datasheets.

Wiki: A Zener diode is a special type of diode

Notes:

1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitors.

 

Weight 0.010 kg
Dimensions 5 × 7 × .3 cm

Product Applications

Zener diodes are used for voltage regulation, as reference elements, surge suppressors, and in switching applications and clipper circuits.

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