Nexperia USA Inc. BZX79-B5V6,113

Overview

BZX79-B5V6,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 5.6 V nominal Zener voltage at 5 mA test current, 80 Ω typical differential resistance, and −2.0 to +1.2 mV/K temperature coefficient. It delivers stable low-voltage reference or stabilization in power supply feedback loops, sensor biasing, and overvoltage protection circuits.

For engineers reviewing the BZX79-B5V6,113 datasheet, BZX79-B5V6,113 pinout, BZX79-B5V6,113 application, or BZX79-B5V6,113 equivalent, this page provides verified electrical parameters, thermal behavior, reverse leakage limits at 2 V, non-repetitive surge capability (6.0 A peak), and direct substitution guidance against industry-standard 5.6 V Zeners.

Technical Context

This device operates as a two-terminal passive voltage reference, relying on controlled avalanche or Zener breakdown in silicon PN junctions. Its regulation accuracy is defined by tight ±2% tolerance at I_Z = 5 mA and low dynamic impedance (80 Ω typ.) ensuring minimal output voltage shift under load variation.

Thermal performance is governed by R_{th j-a} = 380 K/W (lead length ≤8 mm, no PCB pad), limiting continuous dissipation to 400 mW at T_amb = 50 °C. Non-repetitive surge handling (40 W, 100 μs square wave) enables transient clamping without degradation when used with appropriate series impedance.

Key Specifications

Pinout & Package

Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode band marking; total length ~4.25 mm, body diameter ~1.85 mm, lead diameter ~0.56 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4734A and BZX55C5V6, BZX79-B5V6,113 offers superior voltage accuracy (±2% vs ±5%), lower dynamic impedance (80 Ω vs 100–150 Ω), and identical SOD27 footprint-making it optimal for precision feedback, biasing, and compact transient protection where regulation stability is critical.

Availability

BZX79-B5V6,113 is available at Aetrix Electronics and suitable for power supply feedback references, sensor biasing networks, overvoltage clamp circuits, and microcontroller I/O protection requiring stable component supply and guaranteed traceable sourcing.

Supply support for BZX79-B5V6,113 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 leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products division, with focus on automotive, industrial, computing, and consumer markets.

BZX79 series belongs to Nexperia's precision Zener diode product line, engineered for reliable low-power voltage regulation and reference applications across extended temperature ranges and demanding environmental conditions.

FAQ

What is the maximum continuous power dissipation for BZX79-B5V6,113 at 50 °C ambient?

The maximum continuous power dissipation is 500 mW when mounted with 8 mm lead length on a PCB without metallization pad at T_amb = 50 °C. At higher ambient temperatures or with shorter leads, derating applies per the thermal resistance R_{th j-a} = 380 K/W.

Does BZX79-B5V6,113 have polarity marking, and how is it identified?

Yes - the cathode is marked by a distinct color band on the glass body. In circuit operation, the cathode connects to the higher-potential node (e.g., regulated rail), and the anode connects to ground or lower potential, enabling reverse-biased Zener breakdown.

Can BZX79-B5V6,113 be used for ESD protection on 5 V USB lines?

It can provide basic clamping but is not optimized for high-speed ESD (IEC 61000-4-2). Its 100–300 pF capacitance may distort signal integrity, and its 100 μs surge rating exceeds typical ESD pulse duration. Dedicated TVS diodes with sub-nanosecond response are preferred for USB data line protection.

How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?

With S_Z ranging from −2.0 to +1.2 mV/K, the worst-case voltage drift is approximately ±220 mV across a 165 K span. For high-accuracy applications, this must be factored into system tolerance budgets or compensated via external circuitry.