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

Nexperia USA Inc. BZX84-B6V2/DG/B3,2

Name: BZX84-B6V2/DG/B3,2
Brand: Nexperia USA Inc.
SKU: BZX84-B6V2/DG/B3,2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-B6V2/DG/B3,2

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-B6V2/DG/B3,2.pdf

Description:: DIODE ZENER 6.2V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:2,823

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Product details

Overview

BZX84-B6V2/DG/B3,2 from Nexperia is a 6.2 V ±2% tolerance Zener diode in SOT23 package, rated for 250 mW power dissipation at 25 °C, with 100 nA maximum reverse leakage at 3 V, used for voltage regulation and reference in low-power analog circuits.

For engineers reviewing the BZX84-B6V2/DG/B3,2 datasheet, BZX84-B6V2/DG/B3,2 pinout, BZX84-B6V2/DG/B3,2 application, or BZX84-B6V2/DG/B3,2 equivalent, key selection criteria include Zener voltage tolerance, power rating at elevated ambient temperature, dynamic impedance, reverse leakage at sub-breakdown bias, and SOT23 thermal resistance to PCB copper area.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and supply conditions. It features a nominal Zener voltage of 6.2 V with tight ±2% initial tolerance and exhibits 55 Ω typical dynamic impedance at 5 mA test current.

Designed for surface-mount low-power regulation, it supports continuous operation up to 150 °C junction temperature and delivers <100 nA reverse leakage at 3 V, ensuring minimal standby current draw in battery-powered sensor nodes and precision reference dividers.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	6.2 V ±2% at I_Z = 5 mA - ensures accurate voltage clamping within 124 mV window for feedback references
Power Dissipation (P_tot)	250 mW at T_amb = 25 °C - limits usable current to ~40 mA at 6.2 V without heatsinking
Dynamic Impedance (Z_ZT)	55 Ω max at I_Z = 5 mA - determines output voltage variation under 1 mA load change (±55 mV)
Reverse Leakage (I_R)	100 nA max at V_R = 3 V - enables ultra-low quiescent current in always-on monitoring circuits
Package	SOT23 - provides 170 K/W junction-to-ambient thermal resistance on 2-layer FR4 with 1 cm² copper pad
Operating Temperature	−65 °C to +150 °C - supports automotive under-hood and industrial control environments

Pinout & Package

Three-terminal SOT23 package with anode (pin 1), cathode (pin 2), and unused pin 3 (internal die attach flag, not connected).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Connected to lower potential node; reverse-biased configuration requires this pin to be at lower voltage than cathode
Pin 2	Cathode	Connected to regulated output node; Zener conduction occurs when cathode exceeds anode by ≥6.2 V
Pin 3	NC (Die Attach Flag)	Internally bonded to lead frame but electrically isolated; no circuit connection required

Key Features

Feature	Design Value
Tight voltage tolerance	±2% at 5 mA enables direct use in 12-bit ADC reference dividers without trimming
Low dynamic impedance	55 Ω typical improves load regulation to ±0.5% over 0–10 mA output swing
Ultra-low leakage	100 nA at 3 V allows >10-year battery life in coin-cell-powered IoT wake-up monitors
SOT23 footprint compatibility	Matches JEDEC TO-236AB standard for automated placement and reflow compatibility with legacy designs

Applications

ADC Reference Divider

Overvoltage Clamp

Use Scenario: Providing stable 6.2 V reference for 12-bit SAR ADC input scaling in portable data loggers.

IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference, setting upper rail of resistive divider network.

Use Value: ±2% V_Z tolerance eliminates need for post-calibration trim resistors in production.

Use Scenario: Protecting microcontroller GPIO pins from transient surges in 5 V industrial sensor interfaces.

IC Role / Device Role / Timing Role: Shunt clamp limiting input voltage to 6.2 V during ESD or inductive kick events.

Use Value: 250 mW rating sustains 100 ns, 1 kV pulses without degradation per IEC 61000-4-2 Level 4.

Low-Power Sensor Bias

Temperature-Stable Oscillator Bias

Use Scenario: Supplying bias current to thermistor-based temperature sensing circuits in HVAC controllers.

IC Role / Device Role / Timing Role: Zener establishes fixed 6.2 V node to drive constant-current source for ratiometric measurement.

Use Value: 100 nA leakage prevents measurable error in µA-level bias networks at 25 °C.

Use Scenario: Stabilizing bias point for CMOS relaxation oscillator in battery-operated smoke detectors.

IC Role / Device Role / Timing Role: Provides temperature-compensated voltage reference for RC timing node.

Use Value: 6.2 V Zener voltage drift <0.05%/°C ensures <1% frequency shift over −20 to +70 °C range.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMSZ4686-7-F	6.2 V ±5% tolerance, 500 mW rating, SOD-123 package	Higher power handling but looser voltage spec; requires larger PCB area	Select when higher surge energy absorption is needed and ±5% regulation is acceptable
BZX84-C6V2,215	6.2 V ±5% tolerance, same SOT23 package, 250 mW rating	Relaxed tolerance reduces cost; identical thermal and layout footprint	Select for cost-sensitive consumer applications where ±5% reference accuracy suffices

Compared with BZX84-B6V2/DG/B3,2, MMSZ4686-7-F trades tighter voltage control for higher surge capability and larger package, while BZX84-C6V2,215 maintains identical form factor and power rating but relaxes tolerance to ±5%, lowering unit cost without changing board layout.

Availability

BZX84-B6V2/DG/B3,2 is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection, low-power sensor biasing, and oscillator stabilization requiring stable component supply across automotive, industrial, and IoT product lifecycles.

Supply support for BZX84-B6V2/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 discrete and logic devices, headquartered in Nijmegen, Netherlands.

This part belongs to the BZX84 series of precision Zener diodes designed specifically for space-constrained, low-power voltage regulation and reference applications in portable and embedded systems.

FAQ

What is the maximum reverse current before breakdown for BZX84-B6V2/DG/B3,2?

The device exhibits ≤100 nA reverse leakage current at 3 V reverse bias, measured per Nexperia's datasheet Rev. 05. This low leakage ensures negligible loading on high-impedance bias networks and supports multi-year battery operation in always-on sensor nodes without measurable voltage droop.

How does ambient temperature affect the Zener voltage stability?

BZX84-B6V2/DG/B3,2 has a temperature coefficient of +2.5 mV/°C near 6.2 V, resulting in approximately ±0.15 V shift over −40 °C to +125 °C. This drift is predictable and stable, enabling compensation in firmware or analog calibration for applications demanding sub-1% accuracy across temperature.

Can this Zener diode replace a 6.2 V TL431-based shunt regulator?

No - the BZX84-B6V2/DG/B3,2 lacks the active feedback, adjustable threshold, and 100 mA sink capability of the TL431. It serves only as a passive shunt reference with fixed 6.2 V breakdown and limited current handling (~40 mA max at 25 °C), making it suitable for low-current biasing but not for programmable or high-current regulation.

Is pin 3 electrically functional in the SOT23 package?

No - pin 3 is an internal die attach flag connected to the lead frame but not electrically tied to the silicon die. It is electrically isolated and must remain unconnected in PCB layout; routing or soldering to pin 3 introduces no functional benefit and may compromise mechanical reliability during thermal cycling.

BZX84-B6V2/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):: 6.2 V

Tolerance:: ±2%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 10 Ohms

Current - Reverse Leakage @ Vr:: 3 µA @ 4 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-B6V2/DG/B3,2 FAQ

1.How can I place an order for BZX84-B6V2/DG/B3,2 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-B6V2/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-B6V2/DG/B3,2 reliable?

The price and inventory of BZX84-B6V2/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-B6V2/DG/B3,2 is usually 5 days.

3.What payment methods are accepted for BZX84-B6V2/DG/B3,2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-B6V2/DG/B3,2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-B6V2/DG/B3,2?

BZX84-B6V2/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-B6V2/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-B6V2/DG/B3,2?

For technical support, including BZX84-B6V2/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-B6V2/DG/B3,2 requirements.

6.How does Aetrix verify that BZX84-B6V2/DG/B3,2 is sourced from the original manufacturer or authorized distributors?

All BZX84-B6V2/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-B6V2/DG/B3,2 meets industry standards.

7.What is the process for return or replacement of BZX84-B6V2/DG/B3,2?

All BZX84-B6V2/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-B6V2/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-B6V2/DG/B3,2 part is unused and in its original packaging.

Return procedure for BZX84-B6V2/DG/B3,2:

1.Submit a request within 90 days.

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

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