News Release from: STMicroelectronics
Edited by the Electronicstalk Editorial Team on 22 November 2004
Platinum-doped diodes are hot stuff
A new range of ultrafast high-voltage, medium-current diodes are designed for use in industrial, automotive, motor control, lighting and power conversion applications.
Note: Readers of the Editor’s free email newsletter will have read this news when it was announced. . It’s free!
STMicroelectronics has introduced a range of ultrafast high-voltage, medium-current diodes. The STTH diodes are designed for use in industrial, automotive, motor control, lighting and power conversion applications, which need high-voltage ultrafast diodes that will handle voltages between 800 and 1200V, but relatively small currents from 1 to 3A. Such applications also need diodes with medium recovery times (of not more than 75ns) and the best possible ratio of forward voltage drop to leakage current.
The STTH parts are built with a planar, platinum-doped silicon, which helps optimise the combination of forward voltage drop, leakage current and recovery time.
There is a trade-off in both former gold- and new platinum-doped diodes between forward voltage drop and reverse recovery time.
The advantage of the platinum doping process is to reduce leakage current by approximately 100 times, compared with gold doping, providing scope to improve forward voltage drop at a given reverse recovery time.
The platinum process enables STMicroelectronics to offer a maximum operating temperature of 175C for its diodes.
The reduced leakage current of the process also creates a useful temperature margin with regard to the thermal runaway phenomenon.
On top of this, the optimisation of the forward voltage drop in the new series cuts the power losses of the clamping functions in standby mode.
These parts are especially suitable for free-wheeling, clamping, snubbing and demagnetisation functions in power supplies and other power-switching applications.
Prices range from US $0.17 to $0.24 in quantities of 5000 pieces.
• STMicroelectronics: contact details and other news
• Other news in Discrete Power Devices
• Email this news to a colleague
•
• RSS news feed for STMicroelectronics
• RSS news feed for Discrete Power Devices
• Electronicstalk Home Page
Copyright © 2000-2006 Pro-Talk Ltd, UK. Based on news supplied by STMicroelectronics - Subject: STTH diodes