MMSZ5250C-HE3-18

Series:	Automotive, AEC-Q101
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±2%
Power - Max:	500mW
Impedance (Max) (Zzt):	25 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 15V
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	SOD-123
Supplier Device Package:	SOD-123

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Introduction to MMSZ5250C-HE3-18
The MMSZ5250C-HE3-18, belonging to the Diodes-Zener-Single category, is a package of a single, 800mW Zener diode that offers stabalized voltage in a small and compact 3×3 mm SOD-323 package. It features an absolute maximum voltage of 18V and its breakdown voltage can vary between 16.70V and 18.50V. MMSZ5250C-HE3-18 offers excellent temperature and power stability under high operating temperature conditions. This makes it a good choice for many circuit designs where temperature stability is critical.

Application Field of MMSZ5250C-HE3-18
The MMSZ5250C-HE3-18 is commonly used in many different circuit designs, such as:

• Regulating the output voltage of power supplies
• Creating stable voltage references for analog circuits
• Protecting circuits against over-voltage and voltage spikes
• Stabilizing power supplies
• Acting as a voltage clamping device

The MMSZ5250C-HE3-18 can also be used in devices such as AC/DC adapters, charging circuits, DC/DC converters and in other devices that require a stable regulated voltage source. It is very popular due to its small size, high efficiency and its excellent temperature stability.

Working Principle of MMSZ5250C-HE3-18
The MMSZ5250C-HE3-18, like all other Zener Diodes, works based on the principle of avalanche breakdown. An avalanche breakdown is a phenomenon where, when an electric current is applied, electrons travelling in the diode collide with each other and create a large avalanche of charged particles (usually electrons and holes) near the junction of the diode. This large avalanche of particles cancels out the electric field at the junction and the voltage drops suddenly, producing a voltage that is lower than the reverse breakdown voltage of the diode. The MMSZ5250C-HE3-18 is built such that this breakdown voltage is ensured to be in the prescribed range.

In spite of the limited power handling of the MMSZ5250C-HE3-18, it is capable of producing a very stable and continuous voltage output of almost 18V. This is mainly due to its high temperature stability, and its low reverse leakage current. This makes it a perfect choice for circuits and applications where voltage regulation and temperature stability are critical.

The MMSZ5250C-HE3-18 is also energy efficient and has a low power consumption rating. This means that it can be used in designs where energy conservation and power efficiency are important. Additionally, due to its small size and low profile, it can be easily mounted in circuit boards or other protective containers, providing a clean and tidy solution to most applications.

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