The onsemi MMSZ6V8T3G is a Zener diode designed for voltage regulation and protection applications. Zener diodes are widely used in electronic circuits to maintain a stable voltage level, making them essential components in power supply circuits, voltage reference applications, and transient voltage suppression. The MMSZ6V8T3G is particularly noted for its reliability and performance in various electronic applications.

## Key Features

1. Zener Voltage: The MMSZ6V8T3G has a nominal Zener voltage of 6.8V, which makes it suitable for applications requiring voltage regulation around this level. The Zener voltage is specified at a test current of 5 mA.

2. Power Dissipation: This diode can handle a maximum power dissipation of 500 mW, allowing it to effectively regulate voltage without overheating in typical applications.

3. Temperature Coefficient: The temperature coefficient of the Zener voltage is approximately -2.1 mV/°C, which indicates how the Zener voltage changes with temperature. This characteristic is crucial for applications where temperature variations are expected.

4. Low Leakage Current: The MMSZ6V8T3G features a low reverse leakage current, typically around 1 µA at the Zener voltage, which is beneficial for maintaining efficiency in low-power applications.

5. Package Type: The diode is available in a small SOD-123 package, which is ideal for space-constrained applications. This surface-mount package allows for easy integration into printed circuit boards (PCBs).

6. High Reliability: onsemi is known for producing high-quality semiconductor devices, and the MMSZ6V8T3G is no exception. It is designed to meet stringent reliability standards, making it suitable for use in critical applications.

## Specifications

- Zener Voltage (VZ): 6.8V (at 5 mA)
- Reverse Current (IZ): 5 mA (at VZ)
- Maximum Reverse Leakage Current (IR): 1 µA (at VZ)
- Power Dissipation (PD): 500 mW
- Temperature Coefficient (TC): -2.1 mV/°C
- Operating Temperature Range: -55°C to +150°C
- Package Type: SOD-123
- Marking: The diode is marked with the part number for easy identification.

## Applications

The MMSZ6V8T3G Zener diode is suitable for a variety of applications, including:

- Voltage Regulation: It can be used in power supply circuits to maintain a stable output voltage, ensuring that connected components receive the correct voltage level.

- Transient Voltage Suppression: The diode can protect sensitive electronic components from voltage spikes and transients, which can occur due to switching actions or external disturbances.

- Reference Voltage Generation: It can serve as a voltage reference in circuits that require a stable reference point for comparison or regulation.

- Signal Clamping: The diode can be used to clamp signal levels to prevent them from exceeding certain thresholds, protecting downstream components.

## Conclusion

The onsemi MMSZ6V8T3G is a reliable and efficient Zener diode that offers excellent performance for voltage regulation and protection applications. With its nominal Zener voltage of 6.8V, low leakage current, and compact SOD-123 package, it is well-suited for a wide range of electronic circuits. Whether used in power supplies, voltage reference applications, or transient voltage suppression, the MMSZ6V8T3G provides a robust solution for maintaining voltage stability and protecting sensitive components in various electronic designs.