AS4PKHM3/86A

Series:	eSMP®
Packaging:	Tape & Reel (TR)
Part Status:	Discontinued at Digi-Key
Diode Type:	Avalanche
Voltage - DC Reverse (Vr) (Max):	800V
Current - Average Rectified (Io):	2.4A (DC)
Voltage - Forward (Vf) (Max) @ If:	962mV @ 2A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr):	1.8µs
Current - Reverse Leakage @ Vr:	10µA @ 800V
Capacitance @ Vr, F:	60pF @ 4V, 1MHz
Mounting Type:	Surface Mount
Package / Case:	TO-277, 3-PowerDFN
Supplier Device Package:	TO-277A (SMPC)
Operating Temperature - Junction:	-55°C ~ 175°C
Base Part Number:	AS4PK

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Introduction

AS4PKHM3/86A is an advanced high power rectifying diode and it can be used for many applications. This diode includes a variety of features that make it suitable for use in very specific areas. This article will discuss the application field of the AS4PKHM3/86A and illustrate its working principle.

Application Field

The AS4PKHM3/86A is a rectifying diode that can be used for single-phase, two-phase, three-phase, and cascaded full-wave rectification. This diode can also be used for high power converter rectification, bridge rectification, and switching mode power supply applications. Due to the high power capability, AS4PKHM3/86A has become an ideal rectifying diode for many applications. The diode is widely used in HEV/EV systems, PV systems, UPS, LED lighting, and many other power systems. Moreover, it is compatible with various types of semiconductors and can be easily integrated into power circuits.

Working Principle

The AS4PKHM3/86A is a four-layer SIPD (silicon-insulated-gate-polarity-diodes) structure. The diode consists of an anode, a cathode, and two metalized electrical contacts. During operation, the anode and cathode fill with carriers and semiconductor material is in direct contact with the metal contacts. This metalized contact is used as the gate for carriers to fill the anode and cathode depending on the polarity of the current.When the current passes through the diode in a forward direction, the anode corresponding to the current’s polarity fills with the majority carriers, the holes. When the current is reversed, the cathode will fill with electrons, which act as minority carriers. In this way, both anode and cathode can be filled with carriers and therefore the rectified current passes through.

Conclusion

The AS4PKHM3/86A is an advanced high power rectifying diode with many features that make it suitable for various applications. This diode can be used for single-phase, two-phase, three-phase, and cascaded full-wave rectification, as well as high power converter rectification, bridge rectification and switching mode power supply applications. Its working principle is based on four-layer SIPD structure, which allows the diode to fill with carriers depending on the polarity of the current and hence allowing it to pass the rectified current.

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