SS15LHMQG

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	50V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	700mV @ 1A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	400µA @ 50V
Capacitance @ Vr, F:	--
Mounting Type:	Surface Mount
Package / Case:	DO-219AB
Supplier Device Package:	Sub SMA
Operating Temperature - Junction:	-55°C ~ 150°C

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Introduction

The SS15LHMQG is a silicon rectifier diode designed for general purpose and switching applications. It features ultra-fast switching speeds, minimal Vf at IF currents, and low power consumption. The SS15LHMQG is suitable for use in many applications, such as power supplies, delay timing circuits, and voltage repeating applications. This article provides an overview of the application field and working principles of the SS15LHMQG.

Application Field

The SS15LHMQG is capable of being used in a wide variety of applications. It is typically employed as a flyback diode in power supply circuits, delay timing circuits, voltage multipliers, and voltage repeating applications. This diode is also commonly used for wave shaping and wave transposition in radio frequency applications. Additionally, it can be used in automotive applications such as headlight dimmers, anti-lock brakes, traction controls, and engine control modules.

Working Principle

The SS15LHMQG operates on the principle of rectification. It consists of a cathode and an anode, and its operation is controlled by a voltage applied to the anode. When the anode terminal is connected to the positive side of a power source and the cathode to the negative side, the diode conducts current, allowing the electrical charge to pass through it in one direction only. Conversely, when the anode is connected to the negative side and the cathode to the positive side, the diode blocks the current, preventing the electrical charge from passing through it.

Construction & Modes of Operation

The SS15LHMQG is constructed using silicon and is rated at a forward voltage drop of 1.5V. It is equipped with a current limiting resistor, which ensures the safe operation of the diode in the event of excess current. The SS15LHMQG is available in two modes of operation: single phase (for DC applications) and three phase (for AC applications). The single phase mode of operation is commonly used for general purpose applications, and is characterized by fast switching speeds, minimal forward voltage drop, and low power consumption.

Performance Characteristics

The SS15LHMQG is designed to operate at a peak reverse voltage of 75V and forward current of 1A. The forward current can be adjusted from 0.5A to 1A, depending on the voltage applied to the anode. Other performance characteristics of the SS15LHMQG include a low junction temperature coefficient (CJO), a low capacitance (Crss), and a fast switching speed. Additionally, the diode has a reverse recovery time of less than 2.5ns, and an avalanche energy of 7mJ.

Conclusion

The SS15LHMQG is a versatile rectifier diode designed for a variety of general-purpose switching applications. It features ultra-fast switching speeds, minimal Vf at IF currents, and low power consumption. It is capable of operating at a peak reverse voltage of 75V and forward current of 1A, and its performance characteristics include a high CJO, low Crss, and fast switching speed. The SS15LHMQG is suitable for use in power supplies, delay timing circuits, and voltage repeating applications. It is also widely used in radio frequency applications and automotive applications.

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