SGL41-40HE3/97

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	40V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	500mV @ 1A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	500µA @ 40V
Capacitance @ Vr, F:	110pF @ 4V, 1MHz
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	DO-213AB
Operating Temperature - Junction:	-55°C ~ 125°C
Base Part Number:	SGL41-40

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Diodes - Rectifiers - Single

Single-phase rectifiers, such as the SGL41-40HE3/97, are relied on for a number of applications for regulating and converting electrical energy. As a two-terminal device, it is often used for power conversion and in reverse-voltage protection for high-voltage circuits. In addition, the SGL41-40HE3/97 is often used to improve the efficiency of electrical systems.

The SGL41-40HE3/97

The SGL41-40HE3/97 is an industrial-grade, planar passivated surface glass-passivated junction rectifier, designed for operation in devices with both high input voltage and a wide temperature range of -55°C to 150°C. This particular rectifier has excellent surge capability and offers high temperature soldering temperature at a maximum of 250°C for 10 seconds. The SGL41-40HE3/97 is suitable for use with both electric motors and electronic equipment.

Types of Single-Phase Rectifiers

A rectifier is a device that converts alternating current (AC) electricity into direct current (DC) electricity. There are several different types of rectifiers, but the two most common are bridge rectifiers and forward converters. Bridge rectifiers are made up of four diodes in a bridge formation, meaning they are arranged in a straight line with two diodes in parallel with the AC input, and two diodes in parallel with the DC output. Simple, cost-efficient, and relatively easy to use, they are the most common type of rectifier used. A forward converter, however, is more complex and is composed of two switched sources of electric power, an electrical filter, and a diode bridge. Forward converters are best suited for applications with high-power requirements, such as motor drives, energy conversion, and switching power supplies. They are also often used in applications that require high efficiency, such as personal computers and uninterruptible power supplies (UPS).

Operation and Working Principle

Single-phase rectifiers such as the SGL41-40HE3/97 are designed for rectification, which is the conversion of AC current into DC current. They are composed of one or more diodes, which use the forward biasing of the diode to allow electric current to flow in one direction only. The diode connected to the AC input voltage acts as the rectifier and the other diode is connected to the DC output voltage. In other words, the diode will only allow current to flow in the direction of the input voltage, blocking any reverse current flow. When AC voltage is applied, the diodes become forward biased and conduct electric current. The operating frequency of rectifiers is generally between 50 and 60 Hz, which is the frequency of the AC power in many countries. During the positive half cycle of the AC voltage, the upper diode conducts, and the electric current flows through the load and returns to the negative terminal of the rectifier, thus completing the circuit. During the negative half cycle, the lower diode conducts and the electric current flows from the load back to the source in the same direction. Also, rectifiers add a noticeable DC component to the load current, meaning that the input AC voltage is changed into a pulsating DC voltage. The average of this pulsating voltage is often referred to as the voltage ripple. The ratio of the average output DC voltage to the peak AC voltage is known as the rectification ratio, and is an important factor in the efficiency of the rectifier.

Applications

Single-phase rectifiers such as the SGL41-40HE3/97 are useful in a wide range of applications, including general-purpose and high-frequency applications such as power conversion, motors, and electronic equipment. They are also popular in reverse-voltage protection, rectified voltage power supplies, and power factor correction. High-power supplies typically require a mix of both bridge and forward converters since they offer more power and efficiency than several bridge rectifiers when connected in series. Rectifiers are also used for bridge circuit applications, such as for charging batteries, regulating speed of motors, and regulating power in sensitive electronic devices. The efficiency of the rectifier can be improved further by using various methods such as copper loss minimization, reduction of pin and power loss, and temperature compensation.

Conclusion

The SGL41-40HE3/97 is an industrial-grade, single-phase rectifier, specifically designed for operation in extreme temperatures and high input voltages. Thanks to the reverse-bias protection, the rectifier is a great choice for both power conversion and protection of high-voltage circuits. Due to its wide temperature range and superior surge capability, the SGL41-40HE3/97 is suitable for charging batteries, decreasing copper loss, regulating speed of motors and protect sensitive electronic devices.

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