Nexperia USA Inc. BZB84-C5V6,215

Overview

BZB84-C5V6,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, rated for 5.6 V nominal Zener voltage (±5 % tolerance), 300 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision voltage reference and overvoltage clamp in automotive power rail protection circuits.

For engineers reviewing the BZB84-C5V6,215 datasheet, BZB84-C5V6,215 pinout, BZB84-C5V6,215 application, or BZB84-C5V6,215 equivalent, this device is selected for dual-rail clamping, ESD-tolerant bias networks, and AEC-Q101-compliant voltage regulation where space-constrained SMT layout and thermal robustness are critical.

Technical Context

This dual-Zener device integrates two independent 5.6 V Zener junctions sharing a common anode (Pin 3), enabling symmetrical bidirectional clamping or independent reference generation from a single footprint. Its ±5 % voltage tolerance and −2.0 to +2.5 mV/K temperature coefficient support stable operation across −55 °C to +150 °C ambient.

The SOT23 package delivers 100 K/W junction-to-solder-point thermal resistance and supports reflow/wave soldering per JEDEC standards. With 1 µA maximum reverse current at VR = 4.0 V and 400 Ω typical differential resistance at IZ = 5 mA, it maintains tight regulation under transient load conditions.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-pin, small outline, lead-free, RoHS-compliant, optimized for automated placement and reflow soldering on FR4 PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZB84-C5V6,215, the BZB84-B5V6,215 offers tighter voltage control at higher cost and slightly higher leakage, while MMBZ5232BS-7-F sacrifices integration and thermal tracking for compatibility with existing single-diode layouts.

Availability

BZB84-C5V6,215 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor conditioning, USB interface protection, and low-power IoT voltage regulation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BZB84-C5V6,215 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 specializing in high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.

The BZB84 series targets space-constrained, thermally demanding applications such as automotive ECUs and industrial sensors, delivering dual-Zener functionality with AEC-Q101 assurance in miniature SOT23 packages.

FAQ

What is the maximum continuous reverse current the BZB84-C5V6,215 can sustain without degradation?

The device has no specified continuous reverse current rating; its steady-state operation is governed by total power dissipation (300 mW at T_amb ≤ 25 °C). At 5.6 V, this corresponds to ~53.6 mA average Zener current before thermal derating applies. Exceeding this requires active cooling or reduced ambient temperature per the R_th(j-a) = 417 K/W curve.

Can the BZB84-C5V6,215 be used for bidirectional signal clamping in RS-485 transceivers?

Yes - its dual common-anode structure allows direct connection of Pin 1 and Pin 2 to differential bus lines (A/B), with Pin 3 grounded. This provides symmetrical ±5.6 V clamping relative to ground, compatible with standard RS-485 common-mode range (−7 V to +12 V) and meets IEC 61000-4-2 Level 4 ESD immunity when combined with series impedance.

How does the −2.0 to +2.5 mV/K temperature coefficient affect regulation accuracy over temperature?

Over −40 °C to +125 °C, the coefficient causes up to ±0.42 V shift from nominal 5.6 V (0.075 mV/K × 165 K × 5.6 V ≈ ±0.42 V). This is acceptable for non-precision rails like MCU I/O protection but insufficient for ADC references; use only where system-level calibration compensates or where ±7.5 % total variation is tolerable.

Is the SOT23 footprint compatible with standard reflow profiles for lead-free assembly?

Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D reflow profiles. The package withstands peak temperatures up to 260 °C for 10 seconds, and the recommended solder paste stencil aperture (0.6 mm × 0.7 mm per pad) ensures reliable wetting without bridging, validated per Figure 8 in the datasheet.