The MMBZ5251BLT3 is a Zener diode manufactured by NXP Semiconductors (formerly Freescale). It is designed to provide precise voltage regulation and overvoltage protection in various electronic circuits. This diode is packaged in a small SOT-23 surface-mount package, making it suitable for compact and high-density PCB layouts.

Applications

• Voltage Regulation
• Overvoltage Protection
• Transient Voltage Suppression
• Voltage Clamping
• Electronic Circuits Requiring Stable Voltage Reference

Features

• Zener Voltage: 20 V
• Power Dissipation: 225 mW
• Tolerance: ±5%
• Package: SOT-23
• Low Reverse Leakage Current
• High Surge Current Capability
• Surface Mount Device (SMD)

Benefits

• Provides stable and precise voltage regulation, ensuring consistent performance of electronic circuits.
• Protects sensitive components from voltage spikes and transients, enhancing system reliability.
• Compact size allows for use in small form-factor devices and high-density PCB designs.
• Ensures accurate voltage control with a tight tolerance.
• Reduces power consumption and improves efficiency due to low leakage current.
• Withstands high surge currents, providing robust protection against transient events.
• Easy to integrate into automated assembly processes thanks to its surface-mount design.

Additional Details

The MMBZ5251BLT3 is a silicon planar Zener diode, known for its reliability and stable electrical characteristics. It is commonly used in a variety of electronic applications, including portable devices, industrial control systems, and automotive electronics. The forward voltage is approximately 0.9 V at 10 mA.

The SOT-23 package is widely used due to its small size and ease of handling during PCB assembly. The diode operates effectively within a temperature range of -65°C to +150°C. Its design and construction make it a dependable choice for applications requiring precise voltage regulation and protection against voltage transients.