MMSZ5240BT1G

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	10V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	17 Ohms
Current - Reverse Leakage @ Vr:	3µA @ 8V
Voltage - Forward (Vf) (Max) @ If:	900mV @ 10mA
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123
Base Part Number:	MMSZ5240B

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Introduction

The MMSZ5240BT1G device is a single zener diode. It is used in voltage regulation, voltage referencing, over-voltage protection, and many other applications due to its desirable characteristics.

Application Field

The MMSZ5240BT1G device is commonly used in power supplies, temperature measuring and control systems, battery packs, and many other equipment and systems. Depending on the application, its features can be used as a noise filter, voltage regulator, voltage reference, or over-voltage protection. In power supplies, MMSZ5240BT1G devices are widely used for voltage adjustment, limiting,and protection. The low leakage and low-capacitance characteristics make it ideal for use in linear and switch-mode power supplies. Its high-performance characteristics also make the MMSZ5240BT1G an ideal choice for electronic temperature measuring and controlling systems and battery packs.

Working Principle

The MMSZ5240BT1G device is a single zener diode. A zener diode is a two-terminal electronic component designed to operate in voltage breakdown. When connected in a forward-biased direction, it behaves like a normal diode and works like any other silicon diode.When the zener reverse bias voltage is applied to the diode, the zener diode operates in the zener breakdown region. At this point, the zener conducts and causes a voltage drop across the diode, stabilizing the voltage to a particular value. The value of the zener diode is determined by its zener across which, as with all other diodes, is specified in the datasheet. In the MMSZ5240BT1G, the value of this across is 7.8V, which is typical for most 1N4148 and 1N4007 diodes. In this breakdown region, the diode is characterized by its zener impedance which is the sum of the resistance of the diode and the junction capacitance. The impedance is typically very low and helps to prevent any noise from being introduced into the circuit.

Conclusion

In conclusion, the MMSZ5240BT1G is a single zener diode which is widely used for power supplies, temperature measuring and control systems, and battery packs. This device offers very desirable features, including low leakage, low-capacitance, and high-performance characteristics. The device works by allowing a reverse bias voltage to cause the zener diode to operate in the zener breakdown region and resulting in a voltage drop across the diode, stabilizing the voltage to a particular value.

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