MMBZ5246C-HE3-18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	16V
Tolerance:	±2%
Power - Max:	225mW
Impedance (Max) (Zzt):	17 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 12V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3

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Introduction

MMBZ5246C-HE3-18, or generally known as single zener diode, is a special type of diode designed specifically to act as voltage reference or regulator. It is made from a silicon chip with a diode, which operates based on the principle of the PN junction in order to perform the task of regulating voltage levels. It is typically used for stabilizing, impedance matching, and pulse shorting.

Application fields

Single Zener diodes are widely used for a variety of purposes across all industries, but primarily in the electrical and electronics sector. The most common application fields of MMBZ5246C-HE3-18 are power supplies, voltage regulators, reverse polarity protection circuits, audio amplifiers, digital and linear circuits, small motors, specialized systems, and portable and wireless products. The strong structure and reliable performance of this diode makes it popular in these applications.In addition, MMBZ5246C-HE3-18 is used in automotive electronic systems, medical equipment, and semiconductor devices. It is used to regulate and stabalize the voltage levels to provide surge and transient protection. Therefore, they are especially useful in applications where extreme conditions of shock, vibration, and/or temperature fluctuations are encountered.

Working principle

The MMBZ5246C-HE3-18 is a silicon chip with a single diode. Specifically, it is an N-type PN junction diode, which functions by applying a forward bias voltage across the junction. When this happens, the electrons are attracted to the junction and flow through the diode in the same direction, creating a forward current.At the same time, the diode restricts the flow of current in the reverse direction. This is because when a reversed voltage is applied across the diode, the separation between positive and negative charges is increased, rather than decreased. This effectively reduces the flow of current to a very low level, usually to zero. This is essential in order to maintain consistent voltage levels and protect sensitive electronic equipment.The Zener diode of the MMBZ5246C-HE3-18 operates differently compared to the normal PN junction diode. When the forward bias voltage exceeds the Zener voltage, the diode will not break down. Instead, it will remain in the forward biased state and the current will increase than normal. This is known as the Zener effect, and it is essential in maintaining the stable voltage levels in certain electronic circuits.

Conclusion

The MMBZ5246C-HE3-18 is a single zener diode, capable of regulating voltage levels and protecting sensitive electronic equipment from transient and surge. It is widely used in a variety of applications, from power supplies, voltage regulators, and audio amplifiers to medical equipment and automotive electronics. Its strong structure and reliable performance make it a popular choice for many industrial applications. Furthermore, the diode operates based on the principle of the PN junction, with the Zener effect providing stable voltage regulation.

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