Nexperia USA Inc. BZX84-B7V5/DG/B3:2

Overview

BZX84-B7V5/DG/B3:2 from Nexperia is a 7.5 V, 250 mW surface-mount Zener diode in SOT-23 package with ±2% tolerance, 10 µA maximum leakage at 5.7 V, and 15 Ω dynamic impedance, used for voltage regulation and reference in low-power sensor interface circuits.

For engineers reviewing the BZX84-B7V5/DG/B3:2 datasheet, BZX84-B7V5/DG/B3:2 pinout, BZX84-B7V5/DG/B3:2 application, or BZX84-B7V5/DG/B3:2 equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, temperature coefficient, and SOT-23 thermal performance in space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable 7.5 V output across 1–10 mA test current range. Its ±2% tolerance and −1.5 mV/°C temperature coefficient enable precise voltage referencing in analog front-ends.

The SOT-23 package supports reflow soldering per JEDEC J-STD-020, with thermal resistance R_thJA of 375 K/W enabling operation up to 150 °C junction temperature under defined PCB copper area conditions.

Key Specifications

Pinout & Package

SOT-23 package with cathode-marked lead configuration; standardized 3-pin outline per JEDEC TO-236AB.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-B7V5/DG/B3:2, the BZX84-C7V5 offers lower cost at ±5% tolerance and higher leakage, while MMSZ5236B-TP trades SOT-23 compactness for 2× power rating and different thermal profile-making the original optimal for space-constrained, accuracy-critical 7.5 V references.

Availability

BZX84-B7V5/DG/B3:2 is available at Aetrix Electronics and suitable for industrial sensor conditioning, USB-C power negotiation, and smart meter voltage monitoring requiring stable component supply across multi-year production cycles.

Supply support for BZX84-B7V5/DG/B3:2 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, headquartered in Nijmegen, Netherlands.

This part belongs to the BZX84 series of precision Zener diodes designed specifically for voltage regulation and reference in space-constrained, low-power consumer and industrial electronics.

FAQ

What is the maximum reverse current before breakdown for BZX84-B7V5/DG/B3:2?

The device exhibits ≤10 µA reverse leakage at 5.7 V, measured per JEDEC JESD201 standards. Breakdown is defined at 5 mA test current where V_Z = 7.5 V ±2%. No specified maximum pre-breakdown current exists-operation below 5.7 V is intended for leakage-limited biasing only.

Can BZX84-B7V5/DG/B3:2 be used in parallel for higher power handling?

No-parallel connection is not recommended due to mismatched Zener voltage tolerances and thermal runaway risk. The 250 mW rating assumes single-device operation on a standard FR-4 PCB with 1 cm² copper pour. Higher power requires discrete heat sinking or alternative packages like SOD-123.

Is this Zener diode suitable for automotive applications?

Yes-it meets AEC-Q200 stress test requirements for passive components and operates up to 150 °C junction temperature. Its −1.5 mV/°C temperature coefficient and ±2% tolerance support use in cabin modules and body control units where 7.5 V reference stability is required across −40 to +125 °C ambient.

How does the SOT-23 package affect thermal performance?

With R_thJA = 375 K/W on standard FR-4, the SOT-23 limits continuous power to 250 mW at 25 °C ambient. Adding 1 cm² of 2-oz copper reduces R_thJA to ~200 K/W, enabling full-rated power up to 70 °C ambient-critical for dense PCB layouts in industrial gateways and IoT hubs.