UH4PCCHM3/87A

Series:	eSMP®
Packaging:	Tape & Reel (TR)
Part Status:	Discontinued at Digi-Key
Diode Configuration:	1 Pair Common Cathode
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	150V
Current - Average Rectified (Io) (per Diode):	2A
Voltage - Forward (Vf) (Max) @ If:	1.05V @ 2A
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	25ns
Current - Reverse Leakage @ Vr:	5µA @ 150V
Operating Temperature - Junction:	-55°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	TO-277, 3-PowerDFN
Supplier Device Package:	TO-277A (SMPC)
Base Part Number:	UH4PCC

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Introduction

The UH4PCCHM3/87A is a rectifier array specially designed for use in direct current (DC) motor controllers. Its main function is to provide efficient and regulated power flow across the motor and its related subsystems. It is comprised of four individual rectifiers and can be used in applications up to 20 amps. This rectifier array is also designed to withstand up to 70-V reverse voltage spikes.

Application Field and Working Principle

The primary applications of the UH4PCCHM3/87A rectifier array are in motor controllers where the controlling of power flow is necessary. Motor controllers are responsible for regulating the power delivered from a battery or an alternating current source to a motor. The rectifier array is essential for providing regulation of the power keeping voltage across the motor within acceptable limits.The UH4PCCHM3/87A consists of four individual full-wave rectifiers and is connected in series to the motor. The full-wave rectifier is the most common type used in such applications and is based on the principle that when a diode is forward biased or conducting, it will allow the current to pass in only one direction—in this case, from the power source input to the output (the motor). This creates a DC current as only positive or negative half-waves are allowed through the rectifier at any one time, thus creating a direct current flow.Another important aspect of the UH4PCCHM3/87A rectifier array is its ability to withstand up to 70-V reverse voltage spikes. A spike is a sudden increase in the level of voltage across an electrical circuit and the overexposure of such spikes can cause damage to the diode array or system. By incorporating a 70-V reverse voltage protection feature, the UH4PCCHM3/87A is capable of protecting against such incidents.

Conclusion

In conclusion, the UH4PCCHM3/87A rectifier array is specially designed for use in direct current (DC) motor controllers. It is comprised of four individual full-wave rectifiers and can be used in applications up to 20 amps. The full-wave rectifier is based on the principle that when a diode is forward biased, it will allow the current to pass in only one direction. Furthermore, the UH4PCCHM3/87A is capable of protecting against voltage spikes up to 70 V.

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