EL SEGUNDO, Calif. - December 2004 -- International Rectifier, IR®(NYSE: IRF), a world leader in power management technology, today introduced a pair of new 55V-rated Q101-qualified automotive HEXFET® power MOSFETs rated for continuous duty in the D2Pak outline. The new 55V devices are an addition to recently-introduced 40V devices and are designed to increase safety margin in specific circuitry and load topologies where the higher voltage rating would handle load-dump transients on the battery line, or transients caused by loads with strong inductive nature.

The IRF3805S-7P (160A continuous) and IRF1405ZS-7P (120A continuous) are designed for heavy-duty, high-current automotive applications such as electronic power steering (EPS), 14V integrated starter alternator (ISA) systems and advanced alternator active rectification.

A standard three-lead D2Pak is limited to 75A to 100A, depending on lead cross-section and manufacturer's specification method; however, International Rectifier's new devices have seven leads. The additional leads allow a larger wirebond area, reducing die-free package resistance, enabling a device on-resistance specification of 2.6mOhm max at 25ºC (IRF3805S-7P).

"The new 55V-rated Q101 HEXFET MOSFETs increase the selection of devices so that designers can choose the most suitable power switch for their high-current automotive application," said Anthony Murray, International Rectifier Technical Marketing Manager.

The IRF2804S-7P and the IRF1405ZS-7P are ideal replacements for multiple D2Pak devices as well as larger through-hole package devices. In addition, repetitive avalanche (Ear) is characterized on the data sheet and guaranteed up to maximum junction temperature (Tj-max), especially useful for automotive applications.

Q101-Qualified 55V Automotive HEXFET® MOSFETs
Part Number	Package	VDS	RDS(on)	ID, max	Rth	Typ RDS(on) Temp Coeff.	Gate
IRF3805S-7P	D2Pak-7	55V	2.6 mOhm	160A(1)	0.50°C/W	2.10	Std
IRF1405ZS-7P	D2Pak-7	55V	4.9 mOhm	120A	0.65°C/W	2.10	Std
Note 1: Package limited

Availability and Pricing The new 55V, 7-pin automotive MOSFETs are available immediately. Pricing begins at US $2.85 each for the IRF3805S-7P in 10,000-unit quantities.