BZB84-B18,215

Overview

The BZB84-B18,215 is a dual Zener diode in a SOT-23 (TO-236AB) surface-mount package. It features a dual common anode configuration with two independent cathodes and one shared anode. The nominal working voltage is 18 V with a ±2% tolerance. Total power dissipation is 300 mW per device. Key electrical parameters include a maximum reverse current of 45 μA at IZ=5 mA, a differential resistance of 225 Ω, and a temperature coefficient of 12.4 mV/K. Non-repetitive peak reverse power dissipation reaches 40 W.

Feature Summary

• Dual common anode configuration for compact circuit design
• Automotive qualification compliant with AEC-Q101 standards
• Small plastic SMD package suitable for high-density layouts

Applications

• General regulation functions

Procurement Notes

Verify the specific ordering suffix to confirm manufacturing origin details. Confirm RoHS compliance status through official Nexperia documentation before integration. Ensure the component matches the required voltage tolerance class for the intended application design specifications.

Selection Notes

Select this part for applications requiring dual voltage references or protection in a minimal footprint. The dual common anode structure allows efficient use of board space compared to discrete single diodes. Verify thermal management requirements as total power dissipation is limited to 300 mW under standard conditions.

Part Context

This component belongs to the Nexperia BZB84 series of dual Zener diodes. The series offers a wide range of nominal voltages from 2.4 V to 75 V. The 'B' suffix indicates a tight ±2% voltage tolerance, distinguishing it from the 'C' series which offers ±5% tolerance. All variants share the same SOT-23 package and pinout.

Replacement Considerations

Other BZB84-B18 variants with different ordering suffixes may serve as functional replacements if the marking code and manufacturing origin differences are acceptable for the assembly process.