600 V Tandem extra fast diode

This device is part of ST's second generation of 600 V tandem diodes. It has ultralow switching-losses with a minimized QRR that makes it perfect for use in circuits working in hard-switching mode. In particular the VF / QRR trade-off positions this device between standard ultrafast diodes and silicon-carbide Schottky rectifiers in terms of price/performance ratio.

The device offers a new positioning giving more flexibility to power-circuit designers looking for good performance while still respecting cost constraints.

Featuring ST's Turbo 2 600 V technology, the device is particularly suited as a boost diode in continuous conduction mode power factor correction circuits.

Key Features

  • High voltage rectifier
  • Tandem diodes in series
  • Very low switching losses
  • Insulated device with internal ceramic
  • Equal thermal conditions for both 300 V diodes
  • Static and dynamic equilibrium of internal diodes are warranted by design
  • Insulated package:
    • Insulated voltage: 2500 VRMS sine


Technical Documentation

Product Specifications
Description Version Size
DS9442 DS9442: 600 V tandem extra fast diode 2.0 287 KB
Application Notes
Description Version Size
AN5046 AN5046: Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT™ packages 2.0 1 MB
AN5088 AN5088: Rectifiers thermal management, handling and mounting recommendations 1.0 1 MB
Technical Notes & Articles
Description Version Size
TN1173 TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches 5.0 1 MB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
600 V ultrafast diode PSpice models (.lib & .olb) 6.0 51 KB

Publications and Collaterals

Description Version Size
New W series of ultrafast rectifiers for welding applications 1.0 1 MB
ST Diodes Finder : the new app for Android and iOS 1.0 1 MB
Selection Guides
Description Version Size
Diodes and rectifiers selection guide 2.0 815 KB
Description Version Size
Brochure Power management guide 09.2017 3 MB
Products and solutions for solar energy 1.0 1 MB

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Sample & Buy

Part Number Marketing Status Unit Price (US$) * Quantity Package Packing Type Junction Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STTH8ST06DI ActiveTO-220AC InsIndustrialEcopack2 0 0

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.