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Media contact -  Bob Decker, Redpines
Phone:  1.415.409.0233 
Fax:  1.650.618.1512 
E-mail:  bob.decker@redpinesgroup.com

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Vishay Releases Industry's First Dual High-Voltage TMBS Trench MOS Barrier Schottky Rectifier, Providing Lowest Forward Voltage Drop of 0.375 V


For more information:
Media contact -  Bob Decker, Redpines
Phone:  1.415.409.0233 
Fax:  1.650.618.1512 
E-mail:  bob.decker@redpinesgroup.com

Sales contact: 

This release in:

MALVERN, Pa. — December 14, 2005 — Vishay Intertechnology, Inc. (NYSE: VSH) today announced the industry's first Schottky barrier rectifiers based on Trench MOS technology. Useful as a rectification circuit or OR-ing diode in redundant switchmode power supplies, or to replace synchronous rectification solutions, the five new TMBS™ devices feature the lowest forward voltage drop among Schottky rectifiers for their package types.

The first device on the market packaged in a TO-220AB case that is rated for 40 A (2 x 20 A) and 100 V, the VTS40100CT is optimized for 100-W to 300-W high-frequency switchmode power supply applications. Its ultra-low typical forward voltage drop of 0.375 V at 5 A and 125 C reduces conduction power losses. The VTS40100CT can also improve OR-ing diode efficiency in the high-voltage output of redundant switchmode power supplies.

The new V40100P is also rated for 40 A (2 x 20 A) and 100 V, with a TO-247AD case and an even lower typical forward voltage drop of 0.372 V under the same conditions. That forward voltage drop is matched by the V50100P, which also has a TO-247AD case and a higher rating of 50 A (2 x 25 A).

The V30100S and VF30100S are both rated for 30 A (1 x 30 A) and 100 V, with a typical forward voltage drop of 0.385 V at 5 A and 125 C. The V30100S is packaged in a TO-220AB case and the VF30100S in a fully molded ITO-220AB case.

New Vishay Trench MOS Barrier Schottky (TMBS) Rectifiers: Summary Table

Device Number Description Package VF @ IF = 5 A and Tj = 125 C
VTS40100CT 40-A common cathode (20 A X 2 ), 100 V TO-220AB 0.375 V
V50100P 50-A common cathode (25 A X 2 ), 100 V TO-247AD 0.372 V
V30100S 30-A (30 A X 1), 100 V TO-220AB 0.385 V
VF30100S 30-A (30 A X 1), 100 V, full molded ITO-220AB 0.385 V
V40100P 40-A common cathode (20 A X 2 ), 100 V TO-247AD 0.372 V

With their highly efficient switching performance, the new Schottky barrier rectifiers are a superior alternative to planar Schottky devices. They can also match the efficiency and thermal performance of synchronous rectification solutions, producing a reduced heat sink that results in less heat generated by the power supply. By decreasing the number of parts to accomplish the same functions, they provide PCB space savings, simplifying design and reducing cost for OEMs.

The new rectifiers are rated for operation over a -20 C to +150 C junction temperature range. Applications include switchmode power supplies and power adapters for desktop and notebook PCs, servers, plasma display panel and LCD TVs, and computer monitors. They can also be used for OR-ing diode applications in redundant SMPS for telecom systems.

Samples and production quantities of the rectifiers are available now, with lead times of eight weeks for larger orders.

Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay’s product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.

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For more information:
Media contact -  Bob Decker, Redpines
Phone:  1.415.409.0233 
Fax:  1.650.618.1512 
E-mail:  bob.decker@redpinesgroup.com

Sales contact: 

This release in: