BZB84-B56,215

Overview

The Nexperia BZB84-B56,215 is a dual Zener diode in a SOT-23 (TO-236AB) surface-mount package. It features a common anode configuration with two independent cathodes. The nominal Zener voltage is 56 V with a ±2% tolerance series designation. Total power dissipation is 300 mW per device. Key electrical parameters include a maximum reverse current of 200 μA at IZ=2 mA and a differential resistance of 425 Ω. The component operates within a junction temperature range of -55 °C to +150 °C and is qualified to AEC-Q101 standards for automotive applications.

Feature Summary

• Dual common anode configuration for compact circuit design
• AEC-Q101 qualified for automotive reliability
• Small plastic SMD package suitable for high-density layouts

Applications

• General regulation functions
• Voltage reference circuits
• Over-voltage protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm manufacturing origin and compliance status. Ensure the procurement channel provides valid traceability records. Confirm that the received components match the specified SOT-23 package dimensions and marking codes defined in the official datasheet before integration into production lines.

Selection Notes

Select this component when a dual Zener solution with a common anode is required in a small footprint. The B56 variant offers a 56 V nominal breakdown voltage with tight ±2% tolerance. Consider the 300 mW total power dissipation limit and the 425 Ω differential resistance for thermal management and signal integrity requirements in the target application circuit.

Part Context

This part belongs to the Nexperia BZB84 series of general-purpose dual Zener diodes. The series covers a wide working voltage range from 2.4 V to 75 V in E24 values. The BZB84-B56 specifically denotes the 56 V variant within the ±2% tolerance sub-series, sharing the same SOT-23 package and pinout as other members of the family.

Replacement Considerations

Direct substitutes within the same series include BZB84-C56,215 for ±5% tolerance or other BZB84-B variants for different voltage levels. Cross-brand replacements require verification of pin compatibility, power ratings, and Zener voltage tolerances against the original specifications.