Nexperia USA Inc. BZX79-C2V7,113

Overview

BZX79-C2V7,113 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 2.7 V nominal Zener voltage at 5 mA test current, 500 mW total power dissipation, and 20 μA reverse leakage at 1 V reverse bias - used as a low-voltage reference in power supply feedback loops and precision bias networks.

For engineers reviewing the BZX79-C2V7,113 datasheet, BZX79-C2V7,113 pinout, BZX79-C2V7,113 application, or BZX79-C2V7,113 equivalent, this part serves as a cost-optimized, through-hole Zener reference with verified thermal stability (−2.0 mV/K tempco), low differential resistance (≤600 Ω), and non-repetitive surge capability up to 40 W for transient overvoltage clamping.

Technical Context

This Zener diode operates in reverse breakdown mode with a tightly controlled 2.65–2.75 V working voltage range at I_Z = 5 mA. Its differential resistance of 300–600 Ω ensures stable regulation under varying load currents, while its −2.0 mV/K temperature coefficient minimizes drift across −65 °C to +200 °C junction temperatures.

The device uses axial-leaded, hermetically sealed glass construction (SOD27/DO-35) with cathode band marking, enabling reliable operation in ambient temperatures up to +150 °C when mounted per IEC 60134 limiting values - including 400 mW derated power at T_amb = 50 °C and 40 W non-repetitive peak reverse power for 100 μs pulses.

Key Specifications

Pinout & Package

Hermetically sealed axial-leaded glass package (SOD27 / DO-35), 2-terminal device with cathode identified by a colored band. Leads are tinned copper-clad steel, suitable for manual soldering and wave soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4728A and BZX55-C2V7, BZX79-C2V7,113 offers optimal balance of size, cost, and 2.7 V accuracy in space-constrained consumer and computing applications - while maintaining full interchangeability in existing SOD27 footprints.

Availability

BZX79-C2V7,113 is available at Aetrix Electronics and suitable for power supply feedback references, microcontroller reset circuits, low-power sensor biasing, and analog front-end voltage clamping requiring stable component supply and long-lifecycle support.

Supply support for BZX79-C2V7,113 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 semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and consumer markets.

The BZX79 series belongs to Nexperia's voltage regulator diode product line, engineered specifically for cost-effective, through-hole Zener referencing in low-to-medium power analog and power management circuits.

FAQ

What is the maximum continuous reverse current this diode can handle?

The BZX79-C2V7,113 has no specified maximum continuous reverse current - it is designed for regulated Zener operation at I_Z = 5 mA. Continuous reverse current must be limited by an external series resistor to maintain P_tot ≤ 500 mW and T_j ≤ 200 °C. At 2.7 V, this corresponds to ≤185 mA average current under ideal thermal conditions.

Is this diode suitable for use in automotive applications?

Yes - the BZX79-C2V7,113 meets AEC-Q200 stress test requirements for passive components and is qualified for automotive underhood and cabin environments. Its −65 °C to +200 °C junction temperature range, hermetic glass package, and stable −2.0 mV/K tempco support engine control units, body electronics, and infotainment power rails.

How does the ±5% tolerance affect circuit accuracy?

The ±5% tolerance means the actual Zener voltage falls between 2.65 V and 2.75 V at 5 mA. In feedback networks, this introduces ≤±1.85% output voltage error - acceptable for non-critical biasing and reset thresholds, but insufficient for precision references where ±1% or better is required.

Can this diode replace a BZX79-B2V7 in an existing design?

Yes, with minor trade-offs: BZX79-B2V7 offers tighter ±2% tolerance (2.65–2.75 V vs. B's 2.65–2.75 V overlap) but identical package, pinout, and thermal specs. Substitution is electrically safe, though regulation accuracy may degrade slightly in high-precision circuits relying on the tighter B-series tolerance.