EL SEGUNDO, Calif. - May 2005 - International Rectifier, IR®(NYSE: IRF), a world leader in power management technology, today introduced the 105PF40T 400V, 105A diode in a plastic DO-5 package for heavy duty, industrial applications such as arc welders and storage battery chargers.

The new diode features very low maximum peak forward voltage (VFM = 0.98V@200A typ.) and a thermal resistance of 0.25ºC per watt. Competing devices have higher thermal resistances from 0.35ºC to 0.40ºC per watt, making them less efficient.

"IR's new DO-5 packaged device combines high voltage, current and surge capability with excellent thermal efficiency to provide performance which rivals larger DO-8 packages," said Silvestro Fimiani, International Rectifier Product Marketing Manager.

The glass-passivated silicon chip in the new diode is housed in a threaded, stud-mount plastic package, designed to simplify heatsink mounting. The single-hole mount also provides flexibility for multiple diode assemblies, such as bridge rectifier circuits.

Part Number	Package	IT av.[A]	VRRM[V]	VFM Typ.[V]	Itsm[A]	RTHJC[ºC/W]
105PF40T	DO-5 Plastic Cap	105A @ Tc=150ºC	400V	0.98V@ 200A	2500A Tj=25ºC Vr=0	0.25ºC/W