GL34D-E3/98 Discrete Semiconductor Products

Series:	SUPERECTIFIER®
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	200V
Current - Average Rectified (Io):	500mA
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 500mA
Speed:	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr):	1.5µs
Current - Reverse Leakage @ Vr:	5µA @ 200V
Capacitance @ Vr, F:	4pF @ 4V, 1MHz
Mounting Type:	Surface Mount
Package / Case:	DO-213AA (Glass)
Supplier Device Package:	DO-213AA (GL34)
Operating Temperature - Junction:	-65°C ~ 175°C
Base Part Number:	GL34D

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Introduction

The GL34D-E3/98 is a single-phase full-wave freewheeling rectifier diode, which is widely used in electronic circuits for safe and efficient power supply. It is designed to provide protection and control to automotive power supplies and other power conversion applications. This device contains two separate diodes in a single package, which can also be connected in series to form bridge rectifiers. The GL34D-E3/98 has a low forward voltage drop and a low reverse leakage current which make it suitable for use in automotive applications.

Typical Applications

The GL34D-E3/98 can be used in a variety of applications including:

• Automotive power supply applications
• Vehicular DC-DC converters
• Safety and control circuits
• High efficiency circuit designs
• Small signal, high frequency circuits
• Alternative energy systems

Working Principle

The GL34D-E3/98 works by acting as a single-phase, full-wave rectifier. The two separate diodes that comprise the device can be used in series to increase the forward current capability of the device and to produce a bridge rectifier.When full-wave rectification is used, two diode anodes are alternately connected to the positive (or negative) alternating current (AC) output of the transformer. This ensures that no matter which way the AC signal is connected, current will flow through the diodes in the same direction. Although the current supplied to the unregulated voltage rail is higher than the average current supplied by the transformer, this occurs for the time of one half-wave only. The remaining time is used for the capacitor to charge up, thus allowing continuous operation at the same current level.

Advantages of Using GL34D-E3/98

The GL34D-E3/98 has several advantages when compared to other rectifier components. These include:

• High forward current rating
• Low forward voltage drop
• Low reverse leakage current
• High surge current capability
• High temperature operation
• High reproducibility
• High reliability, thanks to a hermetic sealing

These features make the GL34D-E3/98 ideal for use in automotive, alternative energy and high efficiency circuit designs. The low temperature coefficient of the device ensures that it will remain reliable over a wide temperature range.

Conclusion

The GL34D-E3/98 rectifier diode is a versatile component which can be used in a variety of applications requiring rectification. The device offers high current ratings and low forward voltage drops, making it suitable for automotive, alternative energy and high efficiency circuits. It also features a high temperature coefficient and a hermetic sealing that make it reliable for long-term use in tough environments.

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