Nexperia USA Inc. BZX84-A8V2,215

Overview

BZX84-A8V2,215 from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOT23 (TO-236AB) package, designed for precision low-power voltage reference and clamping in space-constrained circuits. It delivers 8.2 V nominal breakdown voltage at 5 mA, with 80 Ω typical differential resistance, 0.7 μA max reverse current at 6.6 V, and ±1 % initial tolerance - used in power supply feedback loops, overvoltage protection, and analog sensor biasing.

For engineers reviewing the BZX84-A8V2,215 datasheet, BZX84-A8V2,215 pinout, BZX84-A8V2,215 application, or BZX84-A8V2,215 equivalent, key selection criteria include Zener voltage accuracy at 5 mA, thermal resistance (330 K/W junction-to-solder-point), non-repetitive surge capability (40 W/100 μs), and SOT23 footprint compatibility with automated assembly.

Technical Context

This device operates as a two-terminal shunt voltage regulator, maintaining stable output by conducting reverse current above its specified Zener voltage (8.11–8.29 V at I_Z = 5 mA). Its low 80 Ω differential resistance ensures minimal voltage shift under load variation, while the ±1 % tolerance enables high-accuracy reference generation without trimming.

Thermal design relies on its 330 K/W junction-to-solder-point thermal resistance and 250 mW steady-state power dissipation limit at T_amb ≤ 25 °C. The 40 W non-repetitive peak reverse power rating supports transient suppression in low-energy surge events (tp = 100 μs, square wave).

Key Specifications

Pinout & Package

Package: SOT23 (TO-236AB), 3-lead surface-mount plastic package with standard footprint per Figure 12 (reflow) and Figure 13 (wave soldering); dimensions: 2.9 mm × 1.3 mm × 1.0 mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-A8V2,215, the MMBZ5238BS-7-F trades ±5 % tolerance and higher r_dif for broader availability, while BZX84-C8V2-TP retains identical dynamic performance but requires system-level gain/offset adjustment due to ±5 % V_Z spread.

Availability

BZX84-A8V2,215 is available at Aetrix Electronics and suitable for power supply feedback references, microcontroller I/O clamping, sensor biasing, and low-power analog reference generation requiring stable component supply across production lifecycles.

Supply support for BZX84-A8V2,215 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The BZX84 series belongs to Nexperia's precision Zener regulator portfolio, engineered for low-power voltage reference and clamping in space-constrained, cost-sensitive applications where ±1 % accuracy and SOT23 manufacturability are critical.

FAQ

What is the maximum continuous forward current for BZX84-A8V2,215?

The device is not rated for continuous forward conduction; its primary function is reverse-biased Zener operation. Forward voltage is specified at 0.9 V max at 10 mA pulse (tp ≤ 100 μs), and continuous forward current is not characterized. For forward rectification, a dedicated signal diode should be used instead.

Can BZX84-A8V2,215 replace a 5.1 V Zener in an existing circuit?

No - it is not a drop-in replacement due to its 8.2 V nominal Zener voltage. Substituting it for a 5.1 V part would raise regulation/clamp thresholds by >60 %, likely causing overvoltage damage to downstream components or failure to regulate. Always match nominal V_Z and tolerance class.

How does the n.c. pin (Pin 2) affect PCB layout?

Pin 2 is internally unconnected and must remain electrically isolated on the PCB. No copper pour, trace, or solder mask opening should contact it. Standard SOT23 footprints (e.g., IPC-7351B) define this pad as non-functional; routing or thermal relief to it degrades reliability and may cause solder bridging.

Is BZX84-A8V2,215 qualified for automotive applications?

No - this variant is non-automotive qualified. Nexperia offers separate -Q automotive-grade versions (e.g., BZX84-A8V2,215-Q) with extended temperature range (−55 °C to +150 °C), AEC-Q200 qualification, and enhanced process controls. Use only the -Q suffix parts in automotive designs.