BZX55B2V4

Single Zener Diodes Overview

The BZX55B2V4 is a silicon unidirectional voltage regulator diode manufactured by Taiwan Semiconductor. It features a nominal Zener voltage of 2.4 V with a tight tolerance of ±2%. The device is designed for surface-mount applications in Mini-MELF packages, offering a power dissipation rating of 500 mW. Key electrical characteristics include a maximum reverse leakage current of 50 µA and a Zener impedance of 85 Ohms at a test current of 5 mA. The component operates within a temperature range of -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with ±2% tolerance for stable reference applications
• Utilizes hermetically sealed glass Mini-MELF packaging for compact circuit integration
• Supports high-temperature operation up to 175 °C for demanding environments

Single Zener Diodes Applications

• General voltage regulation circuits
• Voltage reference sources
• Protection against overvoltage transients

Single Zener Diodes Procurement Notes

Verify the specific package variant, as the BZX55B series includes both axial lead DO-35 and surface-mount Mini-MELF options. Confirm RoHS compliance status and lead finish specifications directly with the manufacturer or authorized distributors. Ensure the selected part matches the required thermal and mechanical constraints for the target assembly process.

Single Zener Diodes Selection Notes

Select this component when a low-voltage reference near 2.4 V is required with high precision. The Mini-MELF package is suitable for space-constrained designs, while the DO-35 variant serves through-hole requirements. Consider the 500 mW power rating and operating temperature limits during thermal analysis to ensure reliable performance under load conditions.

Single Zener Diodes Part Context

This part belongs to the BZX55B series of small-signal Zener diodes from Taiwan Semiconductor. The series offers a wide selection of normalized E24 voltages ranging from 2.4 V to 75 V. The 'B' suffix denotes the ±2% tolerance grade, distinguishing it from standard tolerance variants. These diodes are engineered for general-purpose regulation and protection in consumer and industrial electronics.

Single Zener Diodes Replacement Considerations

Cross-reference with Vishay BZT55B2V4 or NXP BZV55-B2V4D2 for equivalent specifications. Verify package compatibility, as replacements may differ between axial DO-35 and surface-mount Mini-MELF formats. Ensure replacement parts maintain the same ±2% tolerance and 500 mW power dissipation rating.