Nexperia USA Inc. BZX79-B10,113

Overview

BZX79-B10,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode with nominal 10 V breakdown voltage at 5 mA test current, 50 Ω typical differential resistance, and −65 °C to +200 °C junction temperature range. It operates as a low-power voltage reference in bias networks, power supply feedback paths, and overvoltage protection circuits for consumer and industrial electronics.

For engineers reviewing the BZX79-B10,113 datasheet, BZX79-B10,113 pinout, BZX79-B10,113 application, or BZX79-B10,113 equivalent, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (380 K/W), non-repetitive peak reverse power (40 W), and DO-35 package compatibility with through-hole PCB assembly.

Technical Context

This device functions as a two-terminal, silicon planar Zener diode operating in reverse-biased avalanche mode. Its voltage regulation relies on controlled breakdown at precisely defined current (IZtest = 5 mA) and temperature (Tj = 25 °C), with temperature coefficient of +4.5 mV/K enabling predictable drift compensation in stable reference designs.

The SOD27 (DO-35) hermetically sealed glass package ensures long-term parameter stability under ambient storage conditions (−65 °C to +200 °C), while its axial lead configuration supports manual or wave-soldered mounting without thermal pad requirements.

Key Specifications

Pinout & Package

Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a black band; leads are tinned copper alloy, suitable for wave soldering and hand assembly.

Key Features

Applications

Availability

BZX79-B10,113 is available at Aetrix Electronics and suitable for power supply feedback references, overvoltage clamp protection, and low-power sensor biasing requiring stable component supply across extended production lifecycles.

Supply support for BZX79-B10,113 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, serving automotive, industrial, computing, and consumer markets with high-volume, high-reliability components.

The BZX79 series belongs to Nexperia's legacy Zener diode product line, engineered specifically for low-power voltage regulation and reference applications where precision, thermal stability, and long-term parametric consistency are essential.

FAQ

What is the maximum continuous forward current for BZX79-B10,113?

The maximum continuous forward current is 250 mA, as specified in the Absolute Maximum Ratings table. This rating applies under standard PCB mounting conditions with lead length ≤8 mm and tie-point temperature ≤50 °C. Exceeding this value risks irreversible thermal damage to the junction.

How does the temperature coefficient affect regulation accuracy over temperature?

The BZX79-B10,113 has a typical temperature coefficient of +4.5 mV/K at 5 mA test current. Over a 100 °C range (e.g., −25 °C to +75 °C), this results in approximately ±450 mV drift, or ±4.5% of nominal 10 V. Designers must account for this in applications requiring sub-1% stability across temperature.

Can BZX79-B10,113 be used in surface-mount designs?

No - BZX79-B10,113 uses the axial-leaded SOD27 (DO-35) glass package, which is designed exclusively for through-hole mounting. It lacks surface-mount terminations or land patterns. For SMT equivalents, consider Nexperia's PZM series or similar SOD-123 Zeners.

What is the non-repetitive peak reverse current rating?

The non-repetitive peak reverse current (IZSM) is 3.0 A at tp = 100 μs, square-wave pulse, with junction temperature at 25 °C prior to surge. This value is derived from the 40 W peak power rating and 10 V Zener voltage (IZSM = PZSM / VZ ≈ 40 W / 10 V = 4 A), but the datasheet explicitly lists 3.0 A for BZX79-B10 in Table 1.