MMSZ4691T1G

The MMSZ4691T1G is a Zener diode manufactured by ON Semiconductor, designed for voltage regulation and protection applications. This component is part of the MMSZ series of Zener diodes, which are known for their reliability and performance in various electronic circuits.

Key Features:

1. Zener Voltage: The MMSZ4691T1G has a Zener voltage of approximately 3.3 volts, which makes it suitable for low-voltage applications. This voltage is the reverse-bias voltage at which the diode begins to conduct in the reverse direction, providing a stable reference voltage.

2. Power Dissipation: The diode can handle a maximum power dissipation of around 500 milliwatts (mW). This rating indicates the maximum amount of power the diode can dissipate without overheating, making it suitable for applications where thermal management is critical.

3. Package Type: The diode is typically housed in a small SOT-23 package, which is a surface-mount device (SMD). This compact form factor allows for efficient use of board space, making it ideal for modern electronic designs where space is at a premium.

4. Temperature Range: The operating temperature range for the MMSZ4691T1G is typically from -55°C to +150°C. This wide range ensures that the diode can function reliably in various environmental conditions, from extreme cold to high heat.

5. Reverse Leakage Current: The reverse leakage current is relatively low, which is an important characteristic for maintaining the integrity of the circuit in which the diode is used. This ensures minimal power loss and enhances the overall efficiency of the application.

6. Applications: The MMSZ4691T1G is commonly used in voltage regulation, clamping applications, and as a reference voltage source in power supplies and other electronic circuits. It is also suitable for protecting sensitive components from voltage spikes.

7. Marking: The diode is typically marked with a specific code for identification, which helps in distinguishing it from other components in a circuit.

Electrical Characteristics:

• Zener Impedance (Zz): The dynamic impedance of the diode is low, which contributes to its effectiveness in maintaining a stable output voltage under varying load conditions.
• Capacitance: The diode exhibits a certain level of junction capacitance, which can affect high-frequency performance but is generally manageable in most applications.

Conclusion:

The MMSZ4691T1G from ON Semiconductor is a versatile and reliable Zener diode that is well-suited for a variety of electronic applications requiring voltage regulation and protection. Its compact size, wide operating temperature range, and efficient power handling capabilities make it a popular choice among engineers and designers in the electronics industry.