Rugged 40-V to 75-V automotive-qualified MOSFETs offers low on-state resistance for heavy load applications 

July 07, 2011 // By Paul Buckley
International Rectifier has unveiled a family of automotive qualified MOSFETs for a range of applications requiring low on-state resistance (RDS(on)) including heavy load applications used in traditional  Internal Combustion Engine (ICE) platforms, micro and hybrid vehicle platforms. The rugged planar devices feature low RDS(on) and are  available across a range of voltages from 40 V to 75 V in a variety of SMD and through-hole packages.

The AUIRL1404S is a logic level gate drive MOSFETs offered at 40 V and other devices included in the new family are standard gate drive MOSFETs offered at 40 V, 55 V and 75 V.         

The rugged new planar MOSFETs claim to offer good performance in linear mode operation. The wide voltage range also makes them well suited to applications on vehicles using a higher board-net voltage such as trucks.     

IR's automotive MOSFETs are subject to dynamic and static part average testing combined with 100 percent automated wafer level visual inspection as part of IR's automotive quality initiative targeting zero defects. AEC-Q101 qualification requires that there is no more than a 20 percent change in RDS(on) after 1,000 temperature cycles of testing.

In extended  testing IR's new AU Bill Of Materials demonstrated a maximum RDS(on) shift of  less than 10% at 5,000 temperature cycles, showing the strength and ruggedness  of the Bill of Materials. The new devices are qualified according to AEC-Q101 standards, feature an environmentally friendly, lead-free and RoHS compliant bill of materials.

Pricing begins at $0.42 each for the standard gate drive  AUIRFZ44N in 100,000-unit quantities and $1.22 each in 100,000-unit  quantities for the logic level gate drive AUIRL1404S. Production orders are available immediately.      

Visit International Rectifier at www.irf.com.