Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. BZX79-B5V6,133

Name: BZX79-B5V6,133
Brand: Nexperia USA Inc.
SKU: BZX79-B5V6,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX79-B5V6,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX79-B5V6,133.pdf

Description:: DIODE ZENER 5.6V 400MW ALF2

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:6,550

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

BZX79-B5V6,133 from Nexperia is a ±2% tolerance Zener voltage regulator diode in a hermetically sealed SOD27 (DO-35) glass package, designed for low-power voltage reference and stabilization at 5.6 V nominal with 5 mA test current, 80 Ω typical differential resistance, and −2.0 to +1.2 mV/K temperature coefficient. It delivers stable regulation in space-constrained analog power rails and precision bias networks.

For engineers reviewing the BZX79-B5V6,133 datasheet, BZX79-B5V6,133 pinout, BZX79-B5V6,133 application, or BZX79-B5V6,133 equivalent, this page provides verified electrical parameters, thermal limits, package geometry, real-world use cases, and validated alternative parts - all grounded in Nexperia's official 2002 product data sheet.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal regulated voltage of 5.6 V at I_Z = 5 mA, exhibiting a tight ±2% tolerance (5.49–5.71 V). Its differential resistance of 80 Ω (typ.) at 5 mA ensures low dynamic impedance for stable reference performance under varying load currents.

The device features a low non-repetitive peak reverse power dissipation rating of 40 W (100 μs pulse), junction-to-ambient thermal resistance of 380 K/W (unmounted), and reverse leakage ≤1 μA at V_R = 2 V - enabling reliable operation in transient-suppressed, low-current reference circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Zener Voltage (V_Z)	5.6 V at I_Z = 5 mA - defines primary regulation point for precision biasing
Voltage Tolerance	±2% (5.49–5.71 V) - enables high-accuracy voltage references without trimming
Differential Resistance (r_dif)	80 Ω (typ.) at 5 mA - determines output impedance and load regulation sensitivity
Temperature Coefficient (S_Z)	−2.0 to +1.2 mV/K - quantifies V_Z drift over temperature for stability analysis
Max. Power Dissipation (P_tot)	500 mW at T_amb = 50 °C - sets continuous DC power limit in PCB-mounted applications
Reverse Leakage Current (I_R)	≤1 μA at V_R = 2 V - ensures minimal quiescent current in standby reference circuits
Package	SOD27 (DO-35) - axial-leaded, hermetically sealed glass package for reliability in humid environments

Pinout & Package

SOD27 (DO-35) is a hermetically sealed axial-leaded glass package with cathode indicated by a band. Total length ≈ 25.4 mm, body diameter ≈ 1.85 mm, lead diameter ≈ 0.56 mm.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal / low-side connection in reverse-biased configuration	Connected to lower potential node when used as shunt regulator; carries forward current up to 250 mA
Cathode	Zener breakdown terminal / high-side connection in reverse-biased configuration	Marked with band; connected to regulated voltage node; sustains reverse breakdown at 5.6 V

Key Features

Feature	Design Value
Hermetic glass sealing	Prevents moisture ingress and long-term parameter drift in industrial environments
±2% voltage tolerance	Reduces need for post-assembly calibration in voltage reference designs
500 mW total power rating	Supports robust operation in unregulated supply rails up to ~100 mA load current
Low 1 μA reverse leakage at 2 V	Minimizes error contribution in high-impedance feedback or sensing nodes
DO-35 mechanical standardization	Enables drop-in replacement across legacy and new designs using axial-leaded Zeners

Applications

Power Supply Reference

Overvoltage Protection Clamp

Use Scenario: Providing stable 5.6 V reference for linear regulator feedback or ADC reference buffers in battery-powered instrumentation.

IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise DC bias point independent of input variation.

Use Value: Maintains <±0.1 V output deviation over 0–70 °C due to low tempco and tight tolerance.

Use Scenario: Clamping transient spikes on 5 V logic rails during ESD events or switching noise coupling.

IC Role / Device Role / Timing Role: Fast-acting crowbar element diverting surge current above 5.6 V to ground.

Use Value: Withstands 40 W non-repetitive surges (100 μs), limiting rail overshoot to safe levels for downstream ICs.

Current Source Biasing

Analog Sensor Excitation

Use Scenario: Generating constant current for LED bias or transistor base drive using resistor-Zener topology.

IC Role / Device Role / Timing Role: Voltage-defined current source anchor enabling predictable I_OUT = (V_IN − 5.6 V)/R.

Use Value: 80 Ω r_dif ensures current stability within ±2% over 1–10 mA load range.

Use Scenario: Supplying excitation voltage to resistive bridge sensors (e.g., strain gauges) in measurement front-ends.

IC Role / Device Role / Timing Role: Low-noise, low-drift excitation source minimizing common-mode error in differential amplifiers.

Use Value: Reverse leakage <1 μA prevents loading errors in high-Z sensor interfaces.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBZ5232BS-7-F (Diodes Inc.)	Same 5.6 V nominal, SOT-23 package, ±5% tolerance, 200 mW P_tot	Surface-mount only; unsuitable for through-hole boards or high-temp ambient (>50 °C)	Select when board space is constrained and reflow assembly is used.
1N4734A (ON Semiconductor)	5.6 V nominal, ±5%, DO-41 package, 1 W P_tot, 5 Ω r_dif	Higher power handling and lower impedance but larger footprint and looser tolerance	Select when higher surge immunity or tighter regulation under load is required.

Compared with MMBZ5232BS-7-F, BZX79-B5V6,133 offers tighter ±2% tolerance and higher 500 mW power rating in a through-hole package; compared with 1N4734A, it trades off power and low r_dif for smaller DO-35 size and superior temperature coefficient control.

Availability

BZX79-B5V6,133 is available at Aetrix Electronics and suitable for voltage reference design, analog sensor excitation, low-power clamping, and precision biasing requiring stable component supply across industrial, computing, and consumer electronics programs.

Supply support for BZX79-B5V6,133 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 and focused on automotive, industrial, computing, and consumer markets.

The BZX79 series belongs to Nexperia's legacy Zener diode portfolio, engineered specifically for low-power voltage regulation and reference applications where stability, reliability, and standardized through-hole packaging are critical.

FAQ

What is the maximum continuous reverse current this diode can handle at 5.6 V?

The BZX79-B5V6,133 is not rated for continuous reverse current at its Zener voltage; instead, it specifies a maximum continuous forward current of 250 mA. In reverse-biased regulation mode, steady-state current is limited by external series resistance and power dissipation - with 500 mW max at 50 °C ambient, the practical continuous Zener current is ~89 mA (500 mW ÷ 5.6 V), assuming no additional thermal derating.

Can this diode be used in parallel for higher current capability?

No - Zener diodes like the BZX79-B5V6,133 must not be paralleled due to manufacturing variations in breakdown voltage, which cause current hogging and thermal runaway. For higher current, use a single higher-power Zener (e.g., 1N4734A) or an active shunt regulator circuit with a transistor and reference diode.

Is the cathode marked on the physical device?

Yes - the cathode is identified by a distinct color band (typically black or dark stripe) on the glass body of the SOD27 (DO-35) package. This marking aligns with Nexperia's package outline documentation and is visible before and after PCB mounting.

Does this part meet RoHS requirements?

Yes - as a Nexperia product manufactured post-2006, BZX79-B5V6,133 complies with EU RoHS Directive 2011/65/EU. Lead content is restricted to <1000 ppm, and the SOD27 glass package contains no intentionally added hazardous substances beyond permitted exemptions.

BZX79-B5V6,133 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

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

Packaging:: Cut Tape (CT)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 5.6 V

Tolerance:: ±2%

Power - Max:: 400 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 1 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-B5V6,133 FAQ

1.How can I place an order for BZX79-B5V6,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX79-B5V6,133 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-B5V6,133 reliable?

The price and inventory of BZX79-B5V6,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX79-B5V6,133 is usually 5 days.

3.What payment methods are accepted for BZX79-B5V6,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX79-B5V6,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX79-B5V6,133?

BZX79-B5V6,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX79-B5V6,133 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-B5V6,133?

For technical support, including BZX79-B5V6,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX79-B5V6,133 requirements.

6.How does Aetrix verify that BZX79-B5V6,133 is sourced from the original manufacturer or authorized distributors?

All BZX79-B5V6,133 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-B5V6,133 meets industry standards.

7.What is the process for return or replacement of BZX79-B5V6,133?

All BZX79-B5V6,133 units undergo pre-shipment inspection (PSI). If there is an issue with BZX79-B5V6,133, 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-B5V6,133 part is unused and in its original packaging.

Return procedure for BZX79-B5V6,133:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…