Nexperia USA Inc. BZB84-B16,215

Overview

BZB84-B16,215 from Nexperia is a dual common-anode Zener diode in SOT23 (TO-236AB) package, rated for 15.7 V to 16.3 V nominal Zener voltage at 5 mA, with ±2 % tolerance, 200 mW total power dissipation per diode, and AEC-Q101 qualification for automotive use - deployed in voltage regulation and overvoltage protection circuits for engine control units and infotainment power rails.

For engineers reviewing the BZB84-B16,215 datasheet, BZB84-B16,215 pinout, BZB84-B16,215 application, or BZB84-B16,215 equivalent, key selection criteria include Zener voltage accuracy, differential resistance (200 Ω max), non-repetitive peak reverse current (1.5 A), thermal resistance (417 K/W junction-to-ambient), and dual-diode common-anode topology for bidirectional clamping.

Technical Context

This dual Zener diode integrates two identical, independently rated Zener elements sharing a common anode terminal (Pin 3), enabling symmetrical bidirectional voltage clamping or independent regulation paths in compact space-constrained designs. Each diode operates with specified Zener voltage (15.7–16.3 V), temperature coefficient (+10.4 to +14.0 mV/K), and low differential resistance (≤200 Ω).

It supports transient suppression per IEC 61000-4-2/4-4 with non-repetitive peak reverse power dissipation of 40 W (tp = 100 µs, square wave) and complies with AEC-Q101 stress testing for automotive under-hood environments - including operating ambient range from −55 °C to +150 °C and storage up to +150 °C.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, small-outline transistor footprint with 1.3 mm × 2.9 mm body, 0.95 mm height, and gull-wing leads compatible with reflow and wave soldering per JEDEC standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZB84-C16,215, the BZB84-B16,215 delivers higher voltage accuracy critical for closed-loop feedback; versus MMBZ5245BS-7-F, it provides integrated dual-clamp functionality and automotive-grade reliability in half the board area.

Availability

BZB84-B16,215 is available at Aetrix Electronics and suitable for automotive engine control units, infotainment power supplies, and ADAS camera modules requiring stable component supply with AEC-Q101 compliance and long-lifecycle support.

Supply support for BZB84-B16,215 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 automotive environments where precision, longevity, and space savings are critical.

FAQ

What is the maximum continuous power dissipation for BZB84-B16,215 at 70 °C ambient?

At 70 °C ambient, derating applies: P_tot = 300 mW × [1 − (70 − 25)/417] = 268 mW per diode. This accounts for thermal resistance R_th(j-a) = 417 K/W and ensures junction temperature remains below 150 °C under steady-state conditions on standard FR4 PCB.

Can BZB84-B16,215 replace two separate 16 V Zeners in a circuit?

Yes - its dual common-anode structure replaces two discrete 16 V Zeners while halving footprint and eliminating inter-device matching variance. Pin 1 and Pin 2 serve as independent cathodes; Pin 3 is the shared anode, enabling simultaneous or selective clamping without additional routing.

Is the marking code 'PT*' on BZB84-B16,215 device-specific?

Yes - 'PT*' is the official marking for BZB84-B16,215 per Nexperia Table 4, where '*' indicates manufacturing location (e.g., 'p' = Hong Kong). This code uniquely identifies the 16 V ±2 % variant and distinguishes it from C-series (PB*) or other voltage grades.

Does BZB84-B16,215 support bidirectional transient suppression?

Yes - with cathodes on Pins 1 and 2 and common anode on Pin 3, it conducts in reverse bias for both polarities relative to the anode node. When used across a signal line and ground, it clamps positive surges via one diode and negative surges via the other, achieving effective bidirectional protection.