Nexperia USA Inc. BZX84-B6V8,215

Overview

BZX84-B6V8,215 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, rated for 6.8 V nominal breakdown at 5 mA, with 80 Ω max differential resistance and 2 μA max reverse current at 4.76 V. It delivers stable reference voltage in low-power linear regulators and overvoltage protection circuits for microcontroller I/O conditioning.

For engineers reviewing the BZX84-B6V8,215 datasheet, BZX84-B6V8,215 pinout, BZX84-B6V8,215 application, or BZX84-B6V8,215 equivalent, key selection criteria include Zener voltage tolerance (±2 %), thermal resistance (330 K/W to solder point), non-repetitive surge capability (6.0 A peak), junction temperature limit (150 °C), and SOT23 footprint compatibility with automated assembly.

Technical Context

This device operates as a two-terminal shunt voltage reference, maintaining regulation by conducting reverse current above its specified Zener voltage. Its 6.8 V nominal breakdown is defined at 5 mA test current, with temperature coefficient of +1.2 mV/K enabling predictable drift compensation in precision bias networks.

The SOT23 package enables surface-mount integration with low thermal resistance to solder point (330 K/W), supporting continuous power dissipation up to 250 mW at 25 °C ambient when mounted on standard FR4 PCB. Non-repetitive peak reverse current reaches 6.0 A for 100 μs pulses, allowing transient suppression in low-energy surge events.

Key Specifications

Pinout & Package

SOT23 (TO-236AB) plastic surface-mounted package with 3 leads; 1.3 mm × 2.9 mm footprint, 1.1 mm height, and gull-wing lead form compatible with reflow and wave soldering per Figures 12–13 in datasheet Rev. 7.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5235B and BZX84-C6V8, BZX84-B6V8,215 provides tighter voltage control (±2 % vs. ±5 %), lower dynamic impedance (80 Ω vs. ≥100 Ω), and lower leakage (2 μA vs. ≥3 μA), making it preferable for precision analog interfaces and feedback networks demanding <0.5 % output error.

Availability

BZX84-B6V8,215 is available at Aetrix Electronics and suitable for microcontroller I/O protection, low-power voltage reference, linear regulator feedback, and overvoltage detection requiring stable component supply, consistent parametric performance, and SOT23 footprint compatibility.

Supply support for BZX84-B6V8,215 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 manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.

The BZX84 series targets cost-sensitive, space-constrained applications requiring stable Zener regulation with standardized SOT23 packaging, emphasizing manufacturability, thermal performance, and parametric consistency across voltage grades.

FAQ

What is the maximum continuous power dissipation for BZX84-B6V8,215?

The maximum continuous power dissipation is 250 mW at ambient temperature ≤25 °C when mounted on an FR4 PCB with single-sided 70 µm copper and standard SOT23 footprint. Derating is required above 25 °C at 2.0 mW/°C based on thermal resistance of 500 K/W junction-to-ambient.

How does the ±2 % tolerance affect circuit accuracy in a voltage reference application?

The ±2 % tolerance means the actual Zener voltage falls between 6.66 V and 6.94 V at 5 mA, contributing directly to absolute reference error. In a resistive divider-based feedback network, this translates to ≤2 % output voltage deviation unless trimmed or compensated by downstream calibration.

Can BZX84-B6V8,215 be used for bidirectional ESD protection?

No - it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, TVS diodes such as PESD5V0S1BA or ESD5V3U1U are required. BZX84-B6V8,215 only clamps in reverse direction and conducts forward current like a standard diode below 0.9 V.

What is the significance of Pin 2 being 'not connected' in the SOT23 package?

Pin 2 is an internal mechanical tie-bar with no electrical connection to the die. It must remain unconnected on the PCB layout to avoid unintended thermal or electrical coupling. Routing traces or solder mask to this pad may cause solder bridging or thermal imbalance during reflow.