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

Nexperia USA Inc. BZX84-B5V6/DG/B3,2

Name: BZX84-B5V6/DG/B3,2
Brand: Nexperia USA Inc.
SKU: BZX84-B5V6/DG/B3,2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-B5V6/DG/B3,2

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: BZX84-B5V6/DG/B3,2.pdf

Description:: DIODE ZENER 5.6V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:7,566

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Product details

Overview

BZX84-B5V6/DG/B3,2 from Nexperia is a 5.6 V ±2% tolerance Zener diode in SOT23 package, rated for 250 mW power dissipation and 5 mA test current, used for voltage regulation and overvoltage protection in low-power analog circuits.

For engineers reviewing the BZX84-B5V6/DG/B3,2 datasheet, BZX84-B5V6/DG/B3,2 pinout, BZX84-B5V6/DG/B3,2 application, or BZX84-B5V6/DG/B3,2 equivalent, key selection criteria include Zener voltage tolerance, dynamic impedance at 5 mA, maximum reverse leakage at 1 V, power rating derating above 25°C, and SOT23 thermal resistance.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable reference voltage across its terminals. It exhibits a nominal Zener voltage of 5.6 V with ±2% initial tolerance and a dynamic impedance of ≤40 Ω at I_Z = 5 mA.

Designed for surface-mount use in space-constrained PCBs, it supports continuous reverse current up to 100 mA and features a maximum reverse leakage current of 1 µA at V_R = 1 V and 25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	5.6 V ±2% - precise clamping threshold for 5 V rail stabilization
Test Current (I_ZT)	5 mA - standard operating point for specified V_Z and impedance
Dynamic Impedance (Z_ZT)	≤40 Ω at 5 mA - low AC resistance ensures minimal output voltage variation under load transients
Power Dissipation (P_tot)	250 mW at T_amb = 25°C - defines maximum steady-state thermal load in SOT23
Reverse Leakage (I_R)	≤1 µA at V_R = 1 V - negligible quiescent current in standby bias networks
Operating Temperature	−65°C to +150°C - supports industrial and automotive ambient conditions

Pinout & Package

SOT23-3 package: compact 3-pin surface-mount plastic case with standard pin assignment (cathode-anode-anode), footprint compatible with JEDEC TO-236AB outline.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Cathode	Connected to regulated output node; reverse-biased terminal during Zener operation
Pin 2	Anode	Ground or common reference return path for Zener current
Pin 3	Anode	Internally tied to Pin 2; redundant anode connection for mechanical robustness

Key Features

Feature	Design Value
Tight voltage tolerance	±2% at 5.6 V enables accurate 5 V rail clamping without external trimming
Low dynamic impedance	≤40 Ω at 5 mA minimizes output voltage shift under varying load currents
SOT23 package	Standardized footprint allows automated placement and reflow compatibility
High temperature range	−65°C to +150°C operation supports under-hood and industrial control environments

Applications

USB Port ESD Clamp

Microcontroller Reset Circuit

Use Scenario: Clamping transient voltages on USB D+/D− lines during ESD events.

IC Role / Device Role / Timing Role: Zener diode acting as low-capacitance voltage clamp to shunt ESD current before IC input damage.

Use Value: 5.6 V breakdown protects 5 V tolerant USB transceivers while maintaining signal integrity.

Use Scenario: Generating clean reset signal for 3.3 V or 5 V microcontrollers during power-up.

IC Role / Device Role / Timing Role: Reference element in RC-based reset generator, defining threshold voltage for reset release.

Use Value: Tight ±2% tolerance ensures consistent reset assertion timing across production units.

ADC Reference Stabilizer

Low-Power Sensor Bias

Use Scenario: Providing stable reference voltage for 10-bit SAR ADCs in battery-powered sensors.

IC Role / Device Role / Timing Role: Shunt regulator establishing fixed 5.6 V reference for ADC V_REF input.

Use Value: Low 1 µA leakage at 1 V ensures minimal current draw in sleep mode.

Use Scenario: Biasing photodiode or thermistor front-end amplifiers in IoT edge nodes.

IC Role / Device Role / Timing Role: Voltage reference source for op-amp bias networks requiring stable DC offset.

Use Value: 250 mW rating supports continuous operation at 5 mA without thermal runaway.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C5V6,215	±5% tolerance vs. ±2%; same SOT23 package and 250 mW rating	Lower precision suitable for non-critical biasing, not recommended for reset thresholding	Select when cost sensitivity outweighs voltage accuracy requirements
MMSZ5232BS-7-F	5.6 V ±5%, 500 mW rating, SOD-123 package	Higher power handling but larger footprint; requires PCB layout change	Choose for higher reliability margin in high-temperature environments where derating is critical

Compared with BZX84-C5V6,215 and MMSZ5232BS-7-F, the BZX84-B5V6/DG/B3,2 delivers tighter voltage tolerance in the same SOT23 footprint, making it optimal for precision reset and reference applications where board space and accuracy are jointly constrained.

Availability

BZX84-B5V6/DG/B3,2 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset generation, ADC reference stabilization, and low-power sensor biasing requiring stable component supply across production lifecycles.

Supply support for BZX84-B5V6/DG/B3,2 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 semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

This device belongs to the BZX84 series of precision Zener diodes designed specifically for voltage reference and regulation in space-constrained, low-power analog subsystems.

FAQ

What is the maximum reverse current this Zener can handle continuously?

The BZX84-B5V6/DG/B3,2 supports a maximum continuous reverse current of 100 mA at 25°C ambient, limited by its 250 mW power rating and 5.6 V breakdown voltage. Derating applies above 25°C per the datasheet's thermal resistance curve, with safe operation down to 0 mA at 150°C junction temperature.

Does this part have a specified Zener impedance at 1 mA?

No - the datasheet specifies dynamic impedance only at the standard test current of 5 mA (≤40 Ω). At 1 mA, impedance rises significantly due to reduced conduction; design should avoid operation below 2 mA unless validated with actual measurement or manufacturer-provided curves.

Can this Zener be used in parallel for higher power handling?

No - Zener diodes exhibit manufacturing spread in breakdown voltage, causing current imbalance and potential thermal runaway when paralleled. For higher power, select a single higher-rated device like the MMSZ5232BS-7-F or use active regulation instead.

Is the cathode marked on the SOT23 package?

Yes - the cathode is identified by a band on the top surface of the SOT23 package, aligned with Pin 1. This marking is laser-trimmed and visible under 10× magnification, matching JEDEC standard orientation for SOT23-3 devices.

BZX84-B5V6/DG/B3,2 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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

Tolerance:: ±2%

Power - Max:: 250 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 ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZX84-B5V6/DG/B3,2 FAQ

1.How can I place an order for BZX84-B5V6/DG/B3,2 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-B5V6/DG/B3,2 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 BZX84-B5V6/DG/B3,2 reliable?

The price and inventory of BZX84-B5V6/DG/B3,2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-B5V6/DG/B3,2 is usually 5 days.

3.What payment methods are accepted for BZX84-B5V6/DG/B3,2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B5V6/DG/B3,2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-B5V6/DG/B3,2?

BZX84-B5V6/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-B5V6/DG/B3,2 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 BZX84-B5V6/DG/B3,2?

For technical support, including BZX84-B5V6/DG/B3,2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-B5V6/DG/B3,2 requirements.

6.How does Aetrix verify that BZX84-B5V6/DG/B3,2 is sourced from the original manufacturer or authorized distributors?

All BZX84-B5V6/DG/B3,2 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 BZX84-B5V6/DG/B3,2 meets industry standards.

7.What is the process for return or replacement of BZX84-B5V6/DG/B3,2?

All BZX84-B5V6/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B5V6/DG/B3,2, 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 BZX84-B5V6/DG/B3,2 part is unused and in its original packaging.

Return procedure for BZX84-B5V6/DG/B3,2:

1.Submit a request within 90 days.

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

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