Industry's First 30-V Power MOSFETs With On-Resistance Ratings at 2.5V Reduce Power Consumption and Prolong Battery Life in Portable Electronics

SANTA CLARA, CALIFORNIA - October 12, 2001 - The industry's first 30-V power MOSFETs specified for gate drives down to 2.5 V were announced todayby Siliconix incorporated (NASDAQ: SILI), an 80.4%-owned subsidiary of Vishay Intertechnology (NYSE: VSH). The three new n-channel TrenchFETs^®- one each in the TSOP-6, TSSOP-8, and PowerPAK™ 1212-8 packages- are designed for battery charger switching and protection applicationsin portable electronics including cell phones, PDAs, and pagers, as wellas 26- to 28-V ac adapters.

Until now, designers had to work with on-resistance specifications for gate drives in the range of 4.5 V to 10 V when selecting a power MOSFET with a 30-V breakdown voltage. With r_DS(on) specified down to 2.5 V, these three new devices will provide the voltage range designers need for higher-voltage portable applications while delivering low on-resistance performance across the whole 3- to 5-V operating range for batteries. As a result, end products will give users increased battery life and longer periods of use beforere charging is necessary.

The new 30-V devices are aimed at battery switching applications. Packagedin the new PowerPAK 1212-8, the Si7404DN combines on-resistance of just 22 mΩ at a 2.5-V gate drive with a low thermal resistance package measuring 10.56 mm² with a height profile of just 1.07 mm. The new Si3434DV, in a TSOP-6 measuring 8.69 mm², provides an on-resistance of50 mΩ at 2.5 V. The new Si6404DQhas an exceptionally low on-resistance of 14 mΩ at a 2.5-V gate drive and is packaged in a 20.46 mm²TSSOP-8.

Samples and production quantities of the Si3434DV, Si6404DQ, and Si7404DNare available now, with lead times of six weeks for larger orders.

Vishay Intertechnology, Inc., a Fortune 1,000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, and optoelectronics and selected ICs) and passive electronic components (resistors, capacitors, inductors, sensors, and transducers). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, and medical markets. Its product innovations, successful acquisition strategy, and ability to provide "one-stop shop" service have made Vishay a global industry leader. Vishay can be found on the Internet at http://www.vishay.com.

TrenchFET is a registered trademark and PowerPAK is a trademark of Siliconix incorporated