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MMSZ4684 from DIODES

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MMSZ4684

Manufacturer: DIODES, FAIRCHIL

3.3V, 0.5W Zener Diode

Partnumber Manufacturer Quantity Availability
MMSZ4684 DIODES, FAIRCHIL 3865 In Stock

Description and Introduction

3.3V, 0.5W Zener Diode # Introduction to the MMSZ4684 Zener Diode  

The **MMSZ4684** is a surface-mount Zener diode designed for voltage regulation and protection in electronic circuits. As part of the **MMSZ series**, it offers a compact SOD-123 package, making it suitable for space-constrained applications such as portable devices, power supplies, and communication systems.  

With a **Zener voltage (Vz) of 3.3V** and a **power dissipation of 500mW**, the MMSZ4684 provides stable voltage clamping, protecting sensitive components from overvoltage conditions. Its low leakage current and sharp breakdown characteristics ensure efficient performance in both regulation and transient suppression roles.  

Key features of the MMSZ4684 include:  
- **Precise voltage regulation** (±5% tolerance)  
- **Low dynamic impedance** for improved stability  
- **Fast response time** to voltage spikes  
- **RoHS compliance**, meeting environmental standards  

Common applications include:  
- Voltage reference circuits  
- Overvoltage protection in power supplies  
- Signal clamping in communication interfaces  
- Surge suppression in automotive and industrial systems  

Engineers favor the MMSZ4684 for its reliability, small footprint, and cost-effectiveness. When selecting a Zener diode for low-power applications requiring stable 3.3V regulation, the MMSZ4684 remains a practical choice. Proper circuit design, including current-limiting resistors, ensures optimal performance and longevity.  

For detailed specifications, always refer to the manufacturer’s datasheet to confirm operating conditions and thermal considerations.

Application Scenarios & Design Considerations

3.3V, 0.5W Zener Diode

Alternative Part Number

  • BZT52C3V6 --: 3.6V zener in the BZT52 series with similar 500mW power rating and SOD-123 package, a common drop-in replacement for MMSZ4684.
  • 1N4729A --: 3.6V 1W zener diode in DO-41 package, widely available and electrically compatible for general regulation use.
  • MMSZ5232B --: 3.6V zener in SOD-123 package with 500mW rating, offering similar voltage and form factor from an alternate manufacturer.
  • BZT52C3V3 --: 3.3V zener in SOD-123 package, same as MMSZ4684, widely available and electrically equivalent.
  • 1N4728A --: 3.3V 1W zener diode with similar voltage rating, suitable replacement where power dissipation allows.
  • DDZ3V3BSF --: 3.3V zener in SOD-123 flat lead package, low power surface mount alternative with comparable characteristics.
  • DDZ3V6BSF --: 3.6V zener in SOD-323, low-power surface-mount alternative with comparable tolerance and voltage rating.

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