EL SEGUNDO, Calif. - International Rectifier, IR®, (NYSE: IRF) today announced three new 75V HEXFET® power MOSFETs that offer up to 10% lower on-resistance, or RDS(on), over previous generation devices, and offer some of the best performance on the market. The IRF3808, IRF3808S and IRF3808L for 42V automotive systems are available in the TO-220, D2Pak and TO-262 package. In addition, the new MOSFETs are rated for repetitive avalanche up to 175°C. They are Q101-qualified and are fully characterized for automotive applications.

The 7mOhms RDS(on) rating of these devices translates directly into lower power loss, increased efficiency and lower heat dissipation. The low 0.45°C/W thermal resistance in the TO-220 package enables the removal of heat generated from the device more effectively, which keeps device temperature down, reducing heatsink requirements and increases reliability.

The new devices are fully characterized for repetitive avalanche, whereas the avalanche energy (EAR) that the part can withstand is fully defined for a range of operating temperature, avalanche current and duty cycle conditions.

As traditional belt-driven and hydraulic automotive systems are being replaced by electronically controlled systems, the electrical loads in cars are increasing rapidly. Car systems manufacturers are now developing 42V electronic systems to meet the new electrical load requirements.

With the emergence of 42V automotive electrical systems, automotive designers need 75V-rated power semiconductor devices that provide high efficiency in the challenging automotive environment. Applications include Integrated Starter Alternator (ISA), Electrical Power Steering (EPS) and other 42V applications.

"The new International Rectifier 75V MOSFETs have been optimized to meet the requirements of 42V systems for high efficiency and ruggedness, enabling engineers to design-in avalanche conditions with a higher level of confidence in system reliability. International Rectifier is the only company that guarantees operation of their parts under repetitive avalanche conditions up to maximum junction temperature," said Tony Hendrix, Automotive Sector Director at International Rectifier.

Part Number	Voltage (V)	Package	RDS(on) max (mOhms)	RthJC max (oC/W)	TJ (oC)
IRF3808	75	TO-220	7	0.45	-55 to 175
IRF3808S IRF3808L	75	D2Pak TO-262	7	0.75	-55 to 175

Pricing and Availability

The new devices are available immediately. Pricing starts at US $1.95 each in for 10,000-unit quantities.

High Resolution JPEGs are available in the Press Room.