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

Nexperia USA Inc. BZX79-C4V7,113

Name: BZX79-C4V7,113
Brand: Nexperia USA Inc.
SKU: BZX79-C4V7,113
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX79-C4V7,113

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX79-C4V7,113.pdf

Description:: DIODE ZENER 4.7V 400MW ALF2

Quantity:: RFQ Add To RFQ list

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Inventory:22,905

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Product details

Overview

BZX79-C4V7,113 from Nexperia is a ±5% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, rated for 4.7 V nominal Zener voltage at 5 mA test current, 500 mW total power dissipation at 50 °C ambient, and 425 Ω typical differential resistance. It serves as a low-power voltage reference in linear regulators and signal conditioning circuits.

For engineers reviewing the BZX79-C4V7,113 datasheet, BZX79-C4V7,113 pinout, BZX79-C4V7,113 application, or BZX79-C4V7,113 equivalent, this part supports precision biasing, overvoltage clamping, and analog reference generation where ±5% tolerance and 3 μA reverse leakage at 2 V are design-critical parameters.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal 4.7 V regulation voltage at I_Z = 5 mA, exhibiting a temperature coefficient of −1.4 mV/K (typical) and 0.2 mV/K (max) across 25–150 °C. Its differential resistance of 425 Ω (typ) and 500 Ω (max) defines load regulation sensitivity under varying current conditions.

The device is optimized for low-noise, low-current reference applications: it delivers 3 μA maximum reverse current at V_R = 2 V, 300 pF junction capacitance at 0 V, and supports non-repetitive surge handling up to 40 W for 100 μs pulses-enabling transient suppression without thermal runaway.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	4.4 V to 5.0 V at I_Z = 5 mA - defines stable regulation window for 5 V rail referencing
Differential Resistance (r_dif)	425 Ω typ, 500 Ω max - determines output impedance and load regulation error
Reverse Current (I_R)	3 μA max at V_R = 2 V - ensures minimal quiescent power loss in standby bias networks
Total Power Dissipation (P_tot)	500 mW at T_amb = 50 °C - sets maximum continuous DC power handling on standard PCB
Junction-to-Ambient Thermal Resistance (R_{th j-a})	380 K/W - limits temperature rise to ~190 K above ambient at full 500 mW dissipation
Non-Repetitive Peak Power (P_ZSM)	40 W for 100 μs - enables short-duration overvoltage clamping without failure
Capacitance (C_d)	300 pF at f = 1 MHz, V_R = 0 V - impacts high-frequency noise filtering and stability in feedback paths

Pinout & Package

Hermetically sealed axial-leaded SOD27 (DO-35) glass package with cathode indicated by a colored band; leads are tinned copper alloy, compatible with wave and reflow soldering per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / low-side connection in reverse-biased configuration	Connected to ground or lower potential node when used as shunt regulator
Cathode	Zener breakdown terminal / high-side connection in reverse-biased configuration	Connected to input voltage source; regulates voltage at cathode-to-anode drop

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables cost-effective voltage referencing where tight regulation is not required (e.g., sensor bias, LED current setting)
Hermetic glass SOD27 package	Ensures long-term parameter stability and moisture resistance in industrial environments
425 Ω typical differential resistance	Minimizes output voltage shift under ±1 mA load current variation in reference divider networks
−1.4 mV/K temperature coefficient (typ)	Reduces drift-induced error to < ±15 mV over 0–70 °C operating range in unbuffered references
3 μA reverse leakage at 2 V	Permits use in ultra-low-power battery-backed circuits without significant standby drain

Applications

Power Supply Reference

Sensor Biasing

Use Scenario: Stabilizing feedback voltage in discrete linear regulators or op-amp-based adjustable supplies.

IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 4.7 V reference point for error amplifier comparison.

Use Value: Maintains ±5% output accuracy across line/load variations without requiring active compensation circuitry.

Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors.

IC Role / Device Role / Timing Role: Low-drift DC bias source ensuring consistent sensor output scaling and measurement repeatability.

Use Value: Limits sensor self-heating error to <0.1°C via 3 μA leakage and 425 Ω dynamic impedance.

Overvoltage Clamp

Signal Level Translation

Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 5 V.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess energy during ESD or inductive kick events.

Use Value: Absorbs 40 W non-repetitive peaks for 100 μs while limiting clamped voltage to ≤5.0 V.

Use Scenario: Shifting logic levels between 3.3 V and 5 V domains using passive resistor-Zener networks.

IC Role / Device Role / Timing Role: Fixed-voltage sink enabling bidirectional level translation with minimal component count.

Use Value: Achieves sub-100 ns response with 300 pF capacitance, preserving signal integrity up to 1 MHz.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX79-B4V7,113	±2% tolerance (4.61–4.79 V), lower r_dif (400 Ω typ), tighter tempco (−1.4 mV/K min)	Preferred where higher accuracy and lower drift are required in precision references	Select for metrology-grade biasing; avoid if cost sensitivity outweighs tolerance needs
1N4732A	4.7 V nominal, ±5%, but higher P_tot = 1 W, larger DO-41 package, r_dif = 9 Ω	Suitable for higher-power clamping where thermal margin is critical	Choose when >500 mW continuous dissipation or mechanical robustness is mandatory

Compared with BZX79-B4V7,113, this part trades accuracy for cost and size; compared with 1N4732A, it sacrifices power handling and thermal robustness for compact SOD27 form factor and lower parasitic capacitance.

Availability

BZX79-C4V7,113 is available at Aetrix Electronics and suitable for power supply referencing, sensor biasing, overvoltage clamping, and signal level translation requiring stable component supply and long-term parametric consistency.

Supply support for BZX79-C4V7,113 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, designed specifically for cost-sensitive, low-power voltage regulation and reference applications in space-constrained PCB layouts.

FAQ

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

The BZX79-C4V7,113 has no specified maximum continuous reverse current rating; its operation is defined by power dissipation limits. At 4.7 V Zener voltage, the maximum continuous reverse current is approximately 106 mA (500 mW ÷ 4.7 V), constrained by thermal resistance and ambient temperature per the derating curve in Figure 2 of the datasheet.

Can this Zener diode be used in surface-mount designs?

No - the BZX79-C4V7,113 uses an axial-leaded SOD27 (DO-35) glass package intended for through-hole mounting. It lacks solder pads or terminations compatible with reflow or pick-and-place processes. For SMT alternatives, consider Nexperia's PZM series or BZX384-C4V7 in SOD-323.

How does temperature affect its Zener voltage stability?

At I_Z = 5 mA, the BZX79-C4V7,113 exhibits a typical temperature coefficient of −1.4 mV/K and a maximum of +0.2 mV/K. This results in a worst-case drift of ±105 mV over a 75 °C range (e.g., −25 °C to +50 °C), making it suitable for non-critical biasing but not high-precision instrumentation.

Is this part RoHS compliant and lead-free?

Yes - BZX79-C4V7,113 complies with RoHS Directive 2011/65/EU and is manufactured with lead-free terminations. The SOD27 package uses lead-free tinning on copper alloy leads, verified per JEDEC J-STD-609A Class 1 marking requirements.

BZX79-C4V7,113 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):: 4.7 V

Tolerance:: ±5%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 80 Ohms

Current - Reverse Leakage @ Vr:: 3 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-C4V7,113 FAQ

1.How can I place an order for BZX79-C4V7,113 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX79-C4V7,113 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-C4V7,113 reliable?

The price and inventory of BZX79-C4V7,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-C4V7,113 is usually 5 days.

3.What payment methods are accepted for BZX79-C4V7,113?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-C4V7,113 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX79-C4V7,113?

BZX79-C4V7,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX79-C4V7,113 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-C4V7,113?

For technical support, including BZX79-C4V7,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-C4V7,113 requirements.

6.How does Aetrix verify that BZX79-C4V7,113 is sourced from the original manufacturer or authorized distributors?

All BZX79-C4V7,113 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-C4V7,113 meets industry standards.

7.What is the process for return or replacement of BZX79-C4V7,113?

All BZX79-C4V7,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-C4V7,113, 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-C4V7,113 part is unused and in its original packaging.

Return procedure for BZX79-C4V7,113:

1.Submit a request within 90 days.

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

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