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

Nexperia USA Inc. BZX79-B2V7,113

Name: BZX79-B2V7,113
Brand: Nexperia USA Inc.
SKU: BZX79-B2V7,113
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX79-B2V7,113

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX79-B2V7,113.pdf

Description:: DIODE ZENER 2.7V 400MW ALF2

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Inventory:8,099

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Product details

Overview

BZX79-B2V7,113 from Nexperia is a ±2% tolerance Zener voltage regulator diode with nominal 2.7 V breakdown voltage at 5 mA test current, 300 Ω typical differential resistance, and −2.0 mV/K temperature coefficient. It operates as a low-power voltage reference in bias networks, power supply feedback paths, and overvoltage protection circuits, rated for 500 mW total power dissipation at 50 °C ambient.

For engineers reviewing the BZX79-B2V7,113 datasheet, BZX79-B2V7,113 pinout, BZX79-B2V7,113 application, or BZX79-B2V7,113 equivalent, this page delivers verified electrical parameters, SOD27 package dimensions, reverse leakage (20 μA at 1 V), thermal resistance (380 K/W), and validated alternatives for precision low-voltage stabilization.

Technical Context

This Zener diode functions via controlled reverse-biased avalanche and Zener breakdown mechanisms, optimized for stable 2.7 V regulation across −65 °C to +200 °C junction temperature range. Its −2.0 mV/K temperature coefficient minimizes drift in low-voltage references where thermal stability below 3 V is critical.

The device uses hermetically sealed glass SOD27 (DO-35) packaging with axial leads and cathode band marking. It supports non-repetitive peak reverse power dissipation up to 40 W for 100 μs pulses, enabling transient suppression in low-energy clamp applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z @ I_Ztest	2.65–2.75 V at 5 mA - defines tight ±2% regulation window for precision reference use
I_R @ V_R	20 μA at 1 V - low leakage ensures minimal error current in high-impedance bias networks
r_dif	300–600 Ω - quantifies dynamic impedance affecting load regulation accuracy
S_Z	−2.0 mV/K - negative tempco enables compensation when paired with positive-coefficient components
P_tot	500 mW at T_amb = 50 °C - sets maximum continuous power handling on standard PCB mounting
C_d	450 pF at 1 MHz, V_R = 0 V - parasitic capacitance limits high-frequency noise filtering capability
R_{th j-a}	380 K/W - thermal resistance determines junction temperature rise under steady-state bias

Pinout & Package

Hermetically sealed glass SOD27 (DO-35) package with axial leads; cathode identified by a colored band. 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 reverse-bias configuration	Connected to lower potential node when used as shunt regulator; carries forward current up to 250 mA
Cathode	Zener breakdown terminal / regulated output node	Provides stable 2.7 V reference relative to anode; marked by band; sinks reverse current during regulation

Key Features

Feature	Design Value
±2% voltage tolerance	Enables direct replacement in circuits requiring tighter regulation than standard ±5% Zeners
Low 2.7 V nominal Zener voltage	Supports regulation in 3.3 V and 2.5 V system rails without series dropping resistors
40 W non-repetitive peak power	Allows brief surge clamping in low-energy ESD or transient events without failure
Hermetic glass SOD27 package	Ensures long-term parameter stability and moisture resistance in industrial environments

Applications

Power Supply Feedback

Microcontroller Voltage Reference

Use Scenario: Stabilizing output voltage of linear regulators (e.g., LM317) via adjustable feedback divider.

IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 2.7 V setpoint to error amplifier input.

Use Value: Enables accurate 3.3 V or 5 V output with <±1% tolerance across temperature and line variations.

Use Scenario: Supplying stable reference to ADC input or internal bandgap calibration circuitry.

IC Role / Device Role / Timing Role: Low-drift analog reference source for 10-bit+ microcontroller ADCs operating from 3.3 V rails.

Use Value: Reduces measurement error caused by supply ripple or thermal drift in embedded sensor interfaces.

Overvoltage Clamp

Logic-Level Translation

Use Scenario: Protecting GPIO pins from accidental 5 V exposure on 3.3 V–tolerant microcontrollers.

IC Role / Device Role / Timing Role: Reverse-biased Zener clamping excess voltage to 2.7 V above ground.

Use Value: Limits pin voltage to safe level while dissipating <100 mW during transient events.

Use Scenario: Level-shifting 5 V UART signals down to 3.3 V logic thresholds using passive resistor-Zener network.

IC Role / Device Role / Timing Role: Fixed 2.7 V threshold reference defining low-to-high transition point.

Use Value: Ensures reliable detection of 5 V logic highs while rejecting noise below 2.0 V.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5223BS-7-F	2.7 V ±5%, SOT-23 package, 225 mW P_tot, 300 Ω r_dif	Surface-mount only; lower power rating requires derating above 40 °C ambient	Select for space-constrained PCBs where reflow compatibility is required over through-hole assembly
BZX55C2V7	2.7 V ±5%, DO-35 package, 500 mW P_tot, 600 Ω r_dif, 50 μA I_R	Looser tolerance and higher leakage reduce reference accuracy in precision bias networks	Select for cost-sensitive applications where ±5% regulation and moderate tempco stability suffice

Compared with MMBZ5223BS-7-F and BZX55C2V7, BZX79-B2V7,113 delivers tighter ±2% tolerance and lower 20 μA reverse leakage at 1 V-critical for high-accuracy voltage references-while maintaining identical DO-35 form factor and 500 mW power rating.

Availability

BZX79-B2V7,113 is available at Aetrix Electronics and suitable for power supply feedback networks, microcontroller voltage references, overvoltage clamps, and logic-level translation circuits requiring stable component supply and long-term parametric consistency.

Supply support for BZX79-B2V7,113 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, consumer, and wearable 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, stability, and hermetic reliability are essential.

FAQ

What is the maximum continuous reverse current this diode can handle at 2.7 V?

The BZX79-B2V7,113 does not specify a maximum continuous reverse current at 2.7 V; instead, its regulation behavior is defined at I_Ztest = 5 mA. Continuous operation is limited by power dissipation: at 2.7 V, maximum DC reverse current is ~185 mA (500 mW ÷ 2.7 V), but thermal derating applies above 50 °C ambient.

Can this Zener be used in place of a 2.5 V reference in a precision op-amp circuit?

No-its 2.65–2.75 V nominal range exceeds 2.5 V by >6%, and its −2.0 mV/K temperature coefficient introduces predictable but uncorrected drift. For 2.5 V references, dedicated bandgap ICs (e.g., REF3025) or trimmed Zeners like BZX79-B2V4 are appropriate alternatives.

Does the SOD27 package support automated through-hole insertion?

Yes-the SOD27 (DO-35) package has straight axial leads with 25.4 mm minimum length and 0.56 mm max lead diameter, meeting IPC-7351 standards for wave soldering and auto-insertion equipment. Lead spacing is unconstrained, allowing flexible board layout.

How does the −2.0 mV/K temperature coefficient affect long-term stability?

At 2.7 V, a −2.0 mV/K coefficient causes ~−0.54 mV/°C drift. Over a 100 °C range (−40 °C to +60 °C), output shifts ~−54 mV (−2%). This is acceptable for non-critical references but requires compensation (e.g., series thermistor) in metrology-grade designs.

BZX79-B2V7,113 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):: 2.7 V

Tolerance:: ±2%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 20 µA @ 1 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-B2V7,113 FAQ

1.How can I place an order for BZX79-B2V7,113 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX79-B2V7,113 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-B2V7,113 reliable?

The price and inventory of BZX79-B2V7,113 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B2V7,113 is usually 5 days.

3.What payment methods are accepted for BZX79-B2V7,113?

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4.How is shipping managed for BZX79-B2V7,113?

BZX79-B2V7,113 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX79-B2V7,113 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-B2V7,113?

For technical support, including BZX79-B2V7,113 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B2V7,113 requirements.

6.How does Aetrix verify that BZX79-B2V7,113 is sourced from the original manufacturer or authorized distributors?

All BZX79-B2V7,113 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-B2V7,113 meets industry standards.

7.What is the process for return or replacement of BZX79-B2V7,113?

All BZX79-B2V7,113 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B2V7,113, 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-B2V7,113 part is unused and in its original packaging.

Return procedure for BZX79-B2V7,113:

1.Submit a request within 90 days.

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

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