Nexperia USA Inc. BZX79-C3V0,113

Overview

BZX79-C3V0,113 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 3.0 V nominal Zener voltage at 1 mA test current, 500 mW total power dissipation at Tamb = 50 °C, and 40 W non-repetitive peak reverse power. It serves as a low-power voltage reference in linear regulators and signal conditioning circuits for consumer and industrial power management.

For engineers reviewing the BZX79-C3V0,113 datasheet, BZX79-C3V0,113 pinout, BZX79-C3V0,113 application, or BZX79-C3V0,113 equivalent, this page delivers verified electrical parameters, thermal behavior, cathode-marked axial lead configuration, and direct substitution guidance for ±5% Zener reference designs requiring stable 3.0 V regulation under 10 mA bias.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified V_Z of 2.8 V to 3.2 V at I_Z = 1 mA, differential resistance r_dif between 325 Ω and 600 Ω, and temperature coefficient S_Z ranging from −3.5 mV/K to −2.1 mV/K. Its junction-to-ambient thermal resistance is 380 K/W with unmetallized PCB mounting and 8 mm lead length.

Designed for low-current stabilization, it exhibits reverse leakage I_R ≤ 10 μA at V_R = 1 V, diode capacitance C_d ≤ 450 pF at f = 1 MHz and V_R = 0 V, and non-repetitive peak reverse current I_ZSM = 6.0 A for t_p = 100 μs square-wave surges at T_amb = 25 °C.

Key Specifications

Pinout & Package

Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a dark band on the body. Leads are tinned copper-clad steel, suitable for wave or hand soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4723-TAP and BZX55-C3V0,113, the BZX79-C3V0,113 offers optimal balance of compact DO-35 size, low leakage, and proven reliability in space-constrained consumer and industrial references-making it preferred where board area and quiescent current are critical.

Availability

BZX79-C3V0,113 is available at Aetrix Electronics and suitable for low-voltage stabilizers, voltage references, and overvoltage clamping circuits requiring stable component supply across consumer electronics, industrial controls, and automotive body electronics programs.

Supply support for BZX79-C3V0,113 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 standard Zener diode product line, engineered specifically for cost-sensitive, low-power voltage regulation and reference applications where precision, stability, and long-term parametric consistency are essential.

FAQ

What is the maximum continuous forward current for BZX79-C3V0,113?

The absolute maximum continuous forward current is 250 mA at T_amb = 25 °C, per the Absolute Maximum Ratings table. However, forward operation is not typical in Zener applications; the device is intended for reverse-biased regulation, where forward conduction should be avoided to maintain regulation integrity and avoid thermal runaway.

Can BZX79-C3V0,113 be used in place of a 3.3 V Zener diode?

No-it is specified for 3.0 V nominal Zener voltage (2.8–3.2 V range at 1 mA), not 3.3 V. Substituting it for a 3.3 V part introduces up to 90 mV systematic error in reference or clamp thresholds. For 3.3 V applications, use BZX79-C3V3,113, which has a 3.1–3.5 V range and identical package and ratings.

What does the "113" suffix indicate in BZX79-C3V0,113?

The "113" is Nexperia's ordering code denoting tape-and-reel packaging: 10,000 units per reel, 12 mm tape width, and EIA-481 compliant carrier. It carries no electrical or parametric significance-electrical specs are fully defined by the "BZX79-C3V0" base part number.

Is thermal derating required when operating above 50 °C ambient?

Yes-total power dissipation must be linearly derated above 50 °C at 6.67 mW/°C, based on R_{th j-a} = 380 K/W. At 70 °C ambient, maximum allowable P_tot drops to 367 mW. This ensures junction temperature remains below 200 °C, preserving long-term reliability and Zener voltage stability.