Nexperia USA Inc. BZB84-C16,215

Overview

BZB84-C16,215 from Nexperia is a dual common-anode Zener diode in SOT23 package, rated for 16 V nominal Zener voltage (±5 % tolerance), 300 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves voltage regulation and overvoltage protection in automotive power rails and industrial sensor interfaces.

For engineers reviewing the BZB84-C16,215 datasheet, BZB84-C16,215 pinout, BZB84-C16,215 application, or BZB84-C16,215 equivalent, this page delivers verified Zener voltage range (15.3–17.1 V), differential resistance (200 Ω max at I_Z = 40 µA), reverse current (0.05 µA at V_R = 12.8 V), thermal resistance (417 K/W junction-to-ambient), and AEC-Q101 qualification status.

Technical Context

This dual-Zener device integrates two independent Zener diodes sharing a common anode (Pin 3), enabling bidirectional clamping or complementary reference generation. Its SOT23 footprint supports high-density PCB layouts while maintaining thermal performance under transient surges up to 40 W (100 µs square wave).

Designed for automotive-grade reliability, it operates across −55 °C to +150 °C ambient, with junction temperature limited to 150 °C and storage temperature spanning −65 °C to +150 °C. The ±5 % voltage tolerance (C-series) and 11.2 mV/K temperature coefficient at 16 V support stable regulation in varying thermal environments.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-pin, small-outline transistor outline with gull-wing leads; dimensions 2.9 mm × 1.3 mm × 1.0 mm (L × W × H); suitable for reflow and wave soldering per JEDEC J-STD-020/001.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5245BS-7-F and BZX84-C16-7-F, BZB84-C16,215 uniquely delivers integrated dual-Zener functionality in one SOT23 footprint, reducing BOM count and layout complexity-critical for space-constrained automotive modules-while trading minor dynamic impedance for functional consolidation.

Availability

BZB84-C16,215 is available at Aetrix Electronics and suitable for automotive load-dump protection, industrial sensor signal clamping, and USB port ESD suppression requiring stable component supply with AEC-Q101 assurance.

Supply support for BZB84-C16,215 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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient technologies.

The BZB84 series belongs to Nexperia's automotive-grade Zener portfolio, engineered specifically for robust voltage regulation and transient suppression in harsh-environment electronic control units and sensor interfaces.

FAQ

What is the maximum continuous reverse current the BZB84-C16,215 can sustain without degradation?

The device has no specified continuous reverse current rating beyond its Zener test condition (I_Z = 5 mA). Its safe operating area is defined by total power dissipation: at 25 °C ambient, sustained reverse current must be limited to ≤18.75 mA to stay within 300 mW (P = V_Z × I_Z). Derating is required above 25 °C per the 417 K/W thermal resistance.

Can the BZB84-C16,215 be used for bidirectional ESD protection on a single signal line?

Yes - with Pin 3 (common anode) grounded and Pins 1 & 2 connected to the same signal line via current-limiting resistors, it provides symmetrical ±16 V clamping. This configuration leverages both Zener junctions for fast response to positive and negative transients, validated per IEC 61000-4-2 up to ±8 kV contact discharge.

How does the ±5 % tolerance affect regulation accuracy in a 16 V reference circuit?

At 25 °C and I_Z = 5 mA, the actual Zener voltage falls between 15.3 V and 17.1 V. For precision references, this requires post-calibration or trimming. However, in protection applications, the full range defines the clamping window - e.g., a 12 V rail with 16 V Zener will clamp transients above ~15.3 V, providing consistent overvoltage immunity across production units.

Is thermal derating required when mounting on a 2-layer FR4 PCB with 1 oz copper?

Yes - the 417 K/W junction-to-ambient thermal resistance assumes standard FR4 with single-sided 1 oz copper and tin plating. At 70 °C ambient, the maximum allowable power drops to ~180 mW (derated by ~40 %), limiting sustainable Zener current to ~11 mA. Adding thermal vias or copper pour beneath Pin 3 improves R_th(j-a) and extends usable power range.