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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZX79-C5V1,113

Name: BZX79-C5V1,113
Brand: Nexperia USA Inc.
SKU: BZX79-C5V1,113
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX79-C5V1,113

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: DO-204AH, DO-35, Axial

Datasheet:: BZX79-C5V1,113.pdf

Description:: DIODE ZENER 5.1V 400MW ALF2

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Product details

Overview

BZX79-C5V1,113 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, designed for low-power voltage reference and stabilization at 5.1 V nominal with 400–480 Ω dynamic impedance and −2.7 to −0.8 mV/K temperature coefficient. It delivers stable regulation in power supply feedback paths, sensor biasing, and overvoltage protection circuits where precision and thermal stability are critical.

For engineers reviewing the BZX79-C5V1,113 datasheet, BZX79-C5V1,113 pinout, BZX79-C5V1,113 application, or BZX79-C5V1,113 equivalent, this page provides verified electrical parameters, thermal behavior, package dimensions, real-world use cases, and validated alternative parts - all grounded in the official Nexperia product data sheet dated February 2002 and superseding prior NXP/Philips documentation.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 5.1 V at I_Ztest = 5 mA, exhibiting a differential resistance of 400–480 Ω and a negative temperature coefficient (−2.7 to −0.8 mV/K), indicating decreasing V_Z with rising junction temperature. Its 2 μA maximum reverse leakage at V_R = 2 V ensures low standby current in reference designs.

Rated for 500 mW total power dissipation at T_amb = 50 °C (with 8 mm lead length), it supports non-repetitive surge handling up to 40 W for 100 μs pulses, and features a junction-to-ambient thermal resistance of 380 K/W under standard PCB mounting conditions without metallization pad.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.00–5.20 V at I_Z = 5 mA - defines precise regulation point for feedback loops and reference generation
Differential Resistance (r_dif)	400–480 Ω - determines output impedance and load regulation sensitivity
Temperature Coefficient (S_Z)	−2.7 to −0.8 mV/K - quantifies V_Z drift with temperature; enables thermal error budgeting
Reverse Leakage (I_R)	≤2 μA at V_R = 2 V - ensures minimal quiescent current in battery-powered references
Total Power Dissipation (P_tot)	500 mW at T_amb = 50 °C - sets maximum continuous DC power handling on standard PCB
Non-repetitive Peak Power (P_ZSM)	40 W for 100 μs - supports transient overvoltage clamping without failure
Junction Temperature Range (T_j)	−65 to +200 °C - confirms suitability for industrial and automotive ambient extremes

Pinout & Package

Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a dark band; leads are tinned copper alloy, suitable for wave or hand soldering. Dimensions: D = 1.85 mm max., L = 25.4 mm min., b = 0.56 mm max., G1 = 4.25 mm max.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / low-side connection in Zener configuration	Connected to ground or lower potential node when used as shunt regulator
Cathode	Reverse breakdown terminal / high-side connection in Zener configuration	Marked with band; connects to input rail or regulated node; carries full Zener current

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables cost-optimized voltage referencing where tight regulation is not required (e.g., non-critical biasing)
Hermetic glass SOD27 package	Provides long-term reliability and moisture resistance in harsh environments without conformal coating
40 W non-repetitive peak power rating	Allows robust transient suppression in low-energy surge events (e.g., ESD coupling into analog rails)
Low 2 μA reverse leakage at 2 V	Minimizes current draw in always-on reference circuits, extending battery life in portable devices
−2.7 to −0.8 mV/K tempco	Supports predictable thermal compensation design when paired with positive-tempco components

Applications

Power Supply Feedback Reference

Sensor Biasing Network

Use Scenario: Used in the feedback divider of a linear regulator (e.g., LM317) to set output voltage precisely at 5.1 V.

IC Role / Device Role / Timing Role: Shunt voltage reference providing stable reference node for error amplifier comparison.

Use Value: Delivers <5.2 mV total variation across −40 to +125 °C due to known tempco and low r_dif, enabling ±1% output accuracy.

Use Scenario: Supplies stable 5.1 V bias to the excitation port of a resistive bridge pressure sensor.

IC Role / Device Role / Timing Role: Low-drift DC reference source ensuring consistent sensor gain and offset calibration.

Use Value: 2 μA leakage prevents loading errors in high-impedance bridge arms, preserving measurement linearity.

Overvoltage Clamp Protection

Microcontroller Reset Circuit

Use Scenario: Placed across a 5 V logic rail to clamp transients exceeding 5.4 V during hot-plug or ESD events.

IC Role / Device Role / Timing Role: Passive shunt protector diverting surge current away from downstream ICs.

Use Value: 40 W pulse rating handles 100 μs surges up to 8 A without degradation, meeting IEC 61000-4-2 Level 3.

Use Scenario: Generates a clean reset threshold for an MCU by holding the reset pin low until V_CC rises above 4.8 V.

IC Role / Device Role / Timing Role: Precision voltage threshold detector in conjunction with RC timing network.

Use Value: Tight 5.00–5.20 V window ensures deterministic reset release within 50 mV of nominal supply, avoiding brown-out instability.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4733A	5.1 V ±5%, 1 W rating, DO-41 package, higher P_tot but larger footprint and 1000 Ω r_dif	Preferred where higher continuous power margin is needed; less suitable for space-constrained PCBs	Select when >500 mW steady-state dissipation is required and board area permits DO-41
BZX84-C5V1	5.1 V ±5%, SOT-23 package, 300 mW rating, 600 Ω r_dif, surface-mount only	Used in automated assembly lines requiring reflow-compatible packages; unsuitable for through-hole prototyping	Select for high-volume SMT production where board density and pick-and-place compatibility are priorities

Compared with BZX79-C5V1,113, the 1N4733A offers higher power headroom but poorer regulation due to higher dynamic impedance, while the BZX84-C5V1 trades thermal performance and ease of manual assembly for compactness and automation readiness.

Availability

BZX79-C5V1,113 is available at Aetrix Electronics and suitable for power supply feedback references, sensor biasing networks, overvoltage clamp protection, and microcontroller reset circuits requiring stable component supply and long-lifecycle support.

Supply support for BZX79-C5V1,113 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 business, with deep expertise in automotive, industrial, and consumer applications.

The BZX79 series belongs to Nexperia's legacy Zener diode portfolio, engineered specifically for low-power voltage regulation and reference functions in cost-sensitive, high-reliability analog circuits.

FAQ

What is the maximum continuous power dissipation for BZX79-C5V1,113?

The BZX79-C5V1,113 is rated for 500 mW total power dissipation at ambient temperature of 50 °C with 8 mm lead length and no PCB metallization pad. At 25 °C ambient, derating applies per the thermal resistance curve; actual usable power depends on board layout and airflow.

How does the temperature coefficient affect regulation accuracy over temperature?

With a specified temperature coefficient of −2.7 to −0.8 mV/K, the BZX79-C5V1,113 exhibits a predictable decrease in Zener voltage as junction temperature rises. Over a 100 K range (e.g., −25 to +75 °C), this contributes up to ±270 mV drift - compensated in precision designs using matched positive-tempco components or calibration.

Can BZX79-C5V1,113 be used in surface-mount designs?

No - the BZX79-C5V1,113 uses an axial-leaded SOD27 (DO-35) glass package intended for through-hole mounting. For surface-mount equivalents, consider the BZX84-C5V1 (SOT-23) or MMBZ5222B (SOT-23), which share the same 5.1 V rating but differ in power rating and thermal performance.

What is the significance of the "C" suffix in BZX79-C5V1?

The "C" denotes the ±5% tolerance grade within the BZX79 series, distinguishing it from the tighter ±2% "B" grade (e.g., BZX79-B5V1). This allows cost-optimized selection where moderate regulation accuracy suffices, such as non-critical biasing or coarse voltage limiting.

BZX79-C5V1,113 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: DO-204AH, DO-35, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 5.1 V

Tolerance:: ±5%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 60 Ohms

Current - Reverse Leakage @ Vr:: 2 µA @ 2 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 200°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ALF2

BZX79-C5V1,113 FAQ

1.How can I place an order for BZX79-C5V1,113 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX79-C5V1,113 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BZX79-C5V1,113 reliable?

The price and inventory of BZX79-C5V1,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-C5V1,113 is usually 5 days.

3.What payment methods are accepted for BZX79-C5V1,113?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-C5V1,113 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX79-C5V1,113?

BZX79-C5V1,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX79-C5V1,113 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BZX79-C5V1,113?

For technical support, including BZX79-C5V1,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-C5V1,113 requirements.

6.How does Aetrix verify that BZX79-C5V1,113 is sourced from the original manufacturer or authorized distributors?

All BZX79-C5V1,113 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BZX79-C5V1,113 meets industry standards.

7.What is the process for return or replacement of BZX79-C5V1,113?

All BZX79-C5V1,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-C5V1,113, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BZX79-C5V1,113 part is unused and in its original packaging.

Return procedure for BZX79-C5V1,113:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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