NXP Semiconductors BZB84-C13,215

Overview

BZB84-C13,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in compact DC power rails. It delivers nominal 13 V Zener voltage (12.4–14.1 V range), ±5 % tolerance, 170 Ω typical differential resistance at 5 mA, and supports non-repetitive peak reverse current up to 2.5 A under 100 µs surge conditions - used in automotive body control modules for ECU rail clamping.

For engineers reviewing the BZB84-C13,215 datasheet, BZB84-C13,215 pinout, BZB84-C13,215 application, or BZB84-C13,215 equivalent, key selection criteria include dual-Zener common-anode topology, AEC-Q101 qualification, 300 mW total power dissipation, and thermal resistance of 417 K/W junction-to-ambient - critical for space-constrained automotive and industrial voltage reference designs.

Technical Context

This dual-Zener device integrates two independent 13 V Zener elements sharing a common anode (Pin 3), enabling bidirectional voltage clamping or complementary reference generation from a single footprint. Its construction uses planar epitaxial technology with silicon die bonded in a plastic SOT23 package rated for −55 °C to +150 °C ambient operation.

The device operates with forward voltage ≤0.9 V at 10 mA and exhibits temperature coefficient of +7.0 to +11.0 mV/K at 5 mA, supporting stable regulation across automotive temperature ranges. Non-repetitive peak reverse power dissipation is rated at 40 W for tp = 100 µs square-wave pulses with Tj = 25 °C initial condition.

Key Specifications

Pinout & Package

Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm × 0.9 mm body dimensions, tin-plated terminations compatible with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-Zener regulation applications.

Compared with MMBZ5243B-7-F and BZX84-C13, BZB84-C13,215 uniquely provides dual 13 V Zener paths in one footprint - reducing component count and interconnect inlays for bidirectional protection, while maintaining AEC-Q101 compliance and matching thermal performance.

Availability

BZB84-C13,215 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, USB-C PD reference circuits, and medical sensor bias networks requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for BZB84-C13,215 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.

The BZB84 series belongs to Nexperia's AEC-Q101-qualified Zener portfolio, engineered specifically for robust voltage regulation and transient protection in harsh-environment automotive and industrial control systems.

FAQ

What is the maximum continuous reverse current the BZB84-C13,215 can sustain at 25 °C ambient?

The device has no specified continuous reverse current rating; its steady-state operation is governed by total power dissipation limit of 300 mW. At nominal 13 V Zener voltage, this corresponds to ~23 mA average reverse current before thermal derating begins - actual usable current depends on PCB copper area and airflow.

Can BZB84-C13,215 be used for bidirectional ESD protection on a data line?

No - it is not optimized for ESD. With 80 pF capacitance and 170 Ω dynamic impedance, it introduces excessive signal distortion above 1 MHz. For data-line ESD protection, purpose-built low-capacitance TVS arrays like PESD5V0S1BA are recommended instead.

How does the common-anode configuration affect PCB layout compared to dual discrete Zeners?

The common-anode structure allows both cathodes (Pins 1 and 2) to connect independently to different nodes while sharing one ground/reference trace (Pin 3), minimizing ground loops and improving thermal coupling. This simplifies routing versus two separate SOT23 devices requiring individual anode connections.

Is the 40 W non-repetitive peak power rating applicable to both diodes simultaneously?

Yes - the 40 W rating applies per diode, meaning either cathode-to-anode path can handle up to 40 W individually under defined 100 µs pulse conditions. Simultaneous conduction is not prohibited, but total package power must remain within 300 mW DC limit to avoid thermal runaway.