Nexperia USA Inc. BZX84-B62,215

Overview

BZX84-B62,215 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for precision low-power voltage reference and clamping in signal conditioning, power supply feedback, and overvoltage protection circuits. It delivers a nominal 62 V breakdown voltage at 2 mA test current, with 150 Ω typical differential resistance, 0.3 μA reverse leakage at 49.6 V, and a +43.4 mV/K temperature coefficient.

For engineers reviewing the BZX84-B62,215 datasheet, BZX84-B62,215 pinout, BZX84-B62,215 application, or BZX84-B62,215 equivalent, this device is selected for stable 62 V regulation in space-constrained industrial sensors, automotive body control modules, and programmable logic controller I/O protection where ±2 % initial accuracy and thermal stability under 2 mA bias are required.

Technical Context

This Zener diode operates in reverse-biased avalanche breakdown mode, maintaining a stable 62 V reference across its cathode–anode terminals when reverse current exceeds the knee threshold (~0.25 mA). Its positive temperature coefficient (+43.4 mV/K at IZ = 2 mA) compensates for negative drift in associated circuitry, enabling improved system-level thermal tracking.

The device supports pulsed operation up to 40 W non-repetitive peak reverse power (tp = 100 μs), while continuous dissipation is limited to 250 mW at Tamb ≤ 25 °C on standard FR4 PCB. Junction-to-ambient thermal resistance is 500 K/W, requiring minimal heatsinking in low-duty-cycle clamp applications.

Key Specifications

Pinout & Package

Supplied in SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.3 mm × 2.9 mm footprint, 1.1 mm height, with gull-wing leads compatible with reflow and wave soldering per IPC-7351B.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5262B and BZX84-C62, the BZX84-B62,215 provides superior initial accuracy (±2 % vs. ±5 %), identical power handling, and lower dynamic impedance-making it optimal for closed-loop regulation where voltage error directly impacts system gain and linearity.

Availability

BZX84-B62,215 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, PLC input protection, and automotive body control module designs requiring stable component supply with guaranteed long-term continuity.

Supply support for BZX84-B62,215 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage reference and overvoltage protection in space-constrained, thermally demanding applications.

FAQ

What is the maximum continuous reverse current for reliable operation?

The BZX84-B62,215 supports up to 200 mA forward current but is rated for reverse operation at ≤2 mA for stable 62 V regulation. At 250 mW dissipation limit and 62 V V_Z, maximum continuous reverse current is 4.03 mA-exceeding this risks thermal runaway due to positive temperature coefficient behavior.

Can Pin 2 be grounded or left unconnected on the PCB?

Pin 2 is internally not connected (n.c.) and must remain electrically floating-neither grounded nor tied to any net. Routing a trace or via to Pin 2 violates the internal die construction and may cause mechanical stress or solder wicking that compromises long-term reliability.

How does the +43.4 mV/K temperature coefficient affect regulation accuracy?

The positive coefficient means V_Z increases ~43.4 mV per Kelvin rise in junction temperature. Over a -40 °C to +125 °C ambient range, this yields ~7.1 V total shift-critical to model in feedback networks where adjacent components exhibit negative TC, enabling intentional compensation.

Is this device qualified for automotive applications?

No. The BZX84-B62,215 is not automotive-qualified per AEC-Q101. Nexperia explicitly states in Revision 7 that non-automotive products are unsuitable for safety-critical or life-support systems. For automotive use, select the BZX84-Q series variants with full qualification documentation.