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Product Highlight: 3G Schottky Diode Offers Energy Savings and Temperature Reduction in LED Lightings

SK54-3G 3rd Gen for Power LED drivers

The SK54-3G is using Diotec's 3rd Generation (-3G) Schottky chip technology. It comes in DO-214AA/SMB package and offers 5 A / 40 V of nominal current and voltage rating. As such its ideally suited for the output rectifier stage of LED lamp drivers. Those devices are often built into suspended ceilings where heat removal is limited. This requires components with low power losses but also very good heat dissipation.
The SK54-3G offers a very low V_F of 250 mV at 1 A, and a low I_R of 500 µA at 3 V, both at 125°C junction temperature and specified for typical operating parameters of Power LEDs. The low forward voltage and reverse current help to reduce power losses and thus save energy. The SMB package provides a very low thermal resistance junction to terminal of 25 K/W, which allows operation even at higher ambient temperatures.

Features

  • 3rd Generation Schottky chip technology (-3G)
  • Nominal 5 A and 40 V
  • DO-214AA/SMB case outline
  • V_F typ 250 mV at 1 A/125°C
  • I_R typ 500 µA at 3 V/125°C
  • Low thermal resistance 25 K/W to terminal

Applications

  • Power LED drivers
  • DC/DC converters
  • DC motor drives
  • Polarity protection
  • Output rectification

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