Vishay Semiconductor Diodes Division
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MMSZ5238C-HE3-18
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MMSZ5238C-HE3-18

Product Overview

Category

The MMSZ5238C-HE3-18 belongs to the category of Zener diodes, which are semiconductor devices designed to maintain a fixed voltage across their terminals.

Use

This product is commonly used in electronic circuits for voltage regulation and protection against overvoltage conditions.

Characteristics

  • Voltage Regulation: The MMSZ5238C-HE3-18 provides stable voltage regulation under varying load conditions.
  • Reverse Breakdown Voltage: With a reverse breakdown voltage of 18V, it offers protection against voltage spikes.
  • Small Package Size: This diode comes in a small surface-mount package, making it suitable for compact circuit designs.

Package

The MMSZ5238C-HE3-18 is typically available in a SOD-123 surface-mount package.

Packaging/Quantity

It is commonly supplied in reels containing a quantity of 3000 units per reel.

Specifications

  • Part Number: MMSZ5238C-HE3-18
  • Voltage Rating: 18V
  • Power Dissipation: 500mW
  • Operating Temperature Range: -65°C to +150°C
  • Forward Voltage Drop: 1.2V at 200mA

Detailed Pin Configuration

The MMSZ5238C-HE3-18 has two pins, with the cathode connected to the marked terminal and the anode connected to the unmarked terminal.

Functional Features

  • Voltage Regulation: Maintains a constant voltage across its terminals, providing stability to the circuit.
  • Overvoltage Protection: Safeguards sensitive components by diverting excess voltage away from the circuit.

Advantages

  • Small form factor enables use in space-constrained applications.
  • Provides reliable voltage regulation for electronic circuits.
  • Offers protection against voltage surges, enhancing system robustness.

Disadvantages

  • Limited to a specific voltage rating, may not be suitable for applications requiring different voltage levels.
  • Sensitive to excessive current and power dissipation.

Working Principles

The MMSZ5238C-HE3-18 operates based on the principle of the Zener effect, where it maintains a nearly constant voltage drop across its terminals when reverse-biased.

Detailed Application Field Plans

Voltage Regulation

In power supply circuits, the MMSZ5238C-HE3-18 can be used to regulate the output voltage, ensuring a stable supply to downstream components.

Overvoltage Protection

It can be employed in various electronic systems to protect sensitive components from voltage spikes and transients.

Detailed and Complete Alternative Models

  • MMSZ5221B-HE3-08: 8V Zener diode with similar characteristics
  • MMSZ5245B-HE3-30: 30V Zener diode suitable for higher voltage applications
  • BZX84C15LT1G: 15V Zener diode in a different package format

In conclusion, the MMSZ5238C-HE3-18 Zener diode offers reliable voltage regulation and overvoltage protection in a compact package, making it suitable for a wide range of electronic applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MMSZ5238C-HE3-18 v technických řešeních

  1. What is the MMSZ5238C-HE3-18?

    • The MMSZ5238C-HE3-18 is a Zener diode designed for voltage regulation and protection in electronic circuits.

  2. What is the voltage rating of the MMSZ5238C-HE3-18?

    • The MMSZ5238C-HE3-18 has a nominal voltage rating of 5.6V.

  3. What are the typical applications of the MMSZ5238C-HE3-18?

    • Typical applications include voltage regulation, overvoltage protection, and signal clamping in various electronic circuits.

  4. What is the maximum power dissipation of the MMSZ5238C-HE3-18?

    • The maximum power dissipation is typically 500mW.

  5. What is the operating temperature range of the MMSZ5238C-HE3-18?

    • The operating temperature range is usually -65°C to +150°C.

  6. How does the MMSZ5238C-HE3-18 behave under reverse bias conditions?

    • The MMSZ5238C-HE3-18 exhibits Zener breakdown characteristics under reverse bias, maintaining a relatively constant voltage across its terminals.

  7. Can the MMSZ5238C-HE3-18 be used for voltage regulation in low-power applications?

    • Yes, it is suitable for low-power voltage regulation due to its relatively low power dissipation.

  8. What are the package options available for the MMSZ5238C-HE3-18?

    • The MMSZ5238C-HE3-18 is commonly available in SOD-123 surface mount packages.

  9. Is the MMSZ5238C-HE3-18 RoHS compliant?

    • Yes, it is RoHS compliant, making it suitable for use in environmentally conscious designs.

  10. Are there any specific layout considerations when using the MMSZ5238C-HE3-18 in a circuit?

    • It is recommended to minimize lead lengths and keep the device close to the load to reduce parasitic effects and ensure optimal performance.