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

Nexperia USA Inc. BZX84-C3V6/DG/B3,2

Name: BZX84-C3V6/DG/B3,2
Brand: Nexperia USA Inc.
SKU: BZX84-C3V6/DG/B3,2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-C3V6/DG/B3,2

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-C3V6/DG/B3,2.pdf

Description:: DIODE ZENER 3.6V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,729

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Product details

Overview

BZX84-C3V6/DG/B3,2 from Nexperia is a 3.6 V, 250 mW silicon planar Zener diode in SOT23 package, with ±5% tolerance, 90 Ω dynamic impedance at 5 mA, and 100 nA maximum leakage at 1 V reverse voltage; used for voltage regulation and reference in low-power sensor interface circuits.

For engineers reviewing the BZX84-C3V6/DG/B3,2 datasheet, BZX84-C3V6/DG/B3,2 pinout, BZX84-C3V6/DG/B3,2 application, or BZX84-C3V6/DG/B3,2 equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, dynamic impedance at operating current, temperature coefficient, and SOT23 footprint compatibility with space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable 3.6 V reference across varying load currents up to 69 mA (at 250 mW). Its planar construction ensures consistent voltage tolerance and low noise performance suitable for precision analog signal conditioning.

The device exhibits a typical temperature coefficient of +2.5 mV/K near 3.6 V, enabling predictable drift compensation in temperature-sensitive references. It is rated for operation from −65 °C to +150 °C and supports DC and low-frequency AC stabilization without external biasing circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	3.6 V ±5% at I_Z = 5 mA - defines nominal regulation point with tight tolerance for stable reference generation
Power Dissipation (P_tot)	250 mW at T_amb = 25 °C - limits continuous thermal loading in SOT23 package without heatsinking
Dynamic Impedance (Z_ZT)	90 Ω max at I_Z = 5 mA - determines output voltage variation under load current changes
Reverse Leakage (I_R)	100 nA max at V_R = 1 V - ensures minimal parasitic current draw in high-impedance bias networks
Temperature Coefficient (TC)	+2.5 mV/K typical at 3.6 V - enables predictable voltage drift correction over industrial temperature range
Package	SOT23 - surface-mount, 3-pin footprint compatible with automated assembly and compact layout routing

Pinout & Package

SOT23 plastic surface-mount package with standard pin configuration: anode (pin 1), cathode (pin 2), and unused pin 3 (internally unconnected).

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Connected to lower potential side of Zener junction; required for proper reverse-bias orientation
Pin 2	Cathode	Connected to higher potential side; polarity marker for correct PCB placement and schematic symbol
Pin 3	No Connect	Internally isolated; no electrical function - must remain floating per datasheet

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables accurate voltage clamping without post-production trimming in cost-sensitive consumer electronics
Low 90 Ω dynamic impedance	Minimizes output voltage deviation under ±1 mA load current shifts in ADC reference buffers
100 nA max reverse leakage	Preserves bias node integrity in micropower sensor front-ends with >10 MΩ source impedances
SOT23 package compatibility	Supports 0.65 mm pitch reflow assembly and reduces board area by 60% vs. DO-35 through-hole alternatives

Applications

Industrial Sensor Reference

USB Peripheral Voltage Clamp

Use Scenario: Providing stable 3.6 V reference for 12-bit SAR ADC in temperature/humidity transmitters.

IC Role / Device Role / Timing Role: Zener reference diode supplying regulated bias to ADC VREF input.

Use Value: Maintains <±0.5 LSB error over 0–70 °C due to low TC and tight V_Z tolerance.

Use Scenario: Clamping USB data line voltage to prevent ESD-induced latch-up in Type-A port controllers.

IC Role / Device Role / Timing Role: Low-capacitance Zener acting as bidirectional transient suppressor on D+ line.

Use Value: Limits peak voltage to 3.6 V during 8 kV HBM events while adding <0.3 pF parasitic capacitance.

IoT Node Power Monitor

White LED Bias Reference

Use Scenario: Generating precise threshold for battery voltage monitoring in BLE-enabled asset trackers.

IC Role / Device Role / Timing Role: Zener-based comparator reference setting 3.6 V cutoff for Li-ion cell discharge protection.

Use Value: Enables 1% state-of-charge resolution with minimal quiescent current (<200 nA standby draw).

Use Scenario: Setting constant-current bias for 2835-format white LEDs in smart lighting modules.

IC Role / Device Role / Timing Role: Shunt regulator establishing fixed 3.6 V drop across current-sense resistor.

Use Value: Delivers ±3% luminance stability across 10–100 mA LED drive range with no active feedback.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMSZ4685-7-F	Same 3.6 V nominal, ±5% tolerance, but 500 mW rating and SOD-123 package	Higher power handling suits 100 mA load scenarios; larger footprint requires PCB redesign	Select when thermal margin >250 mW is required and board space allows SOD-123
BZX84-C3V6,215	Identical electrical specs and SOT23 package, but different tape-and-reel packaging (7" vs. 13") and traceability marking	No functional difference; suitable for drop-in replacement where logistics chain accepts alternate reel format	Choose for seamless substitution in existing SMT lines using standard 7" reels

Compared with MMSZ4685-7-F and BZX84-C3V6,215, the BZX84-C3V6/DG/B3,2 offers optimized thermal resistance in SOT23 for space-constrained designs, while maintaining identical regulation performance-making it preferred for ultra-compact IoT nodes where footprint and power density are critical.

Availability

BZX84-C3V6/DG/B3,2 is available at Aetrix Electronics and suitable for industrial sensor reference, USB peripheral voltage clamp, and IoT node power monitor applications requiring stable component supply and long-term production continuity.

Supply support for BZX84-C3V6/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, with leadership in automotive-qualified components and energy-efficient solutions.

The BZX84 series belongs to Nexperia's precision Zener diode product line, engineered for stable voltage reference and clamping in space- and power-constrained portable and industrial electronics.

FAQ

What is the maximum reverse current at which BZX84-C3V6/DG/B3,2 maintains regulation?

The device maintains regulation up to 69 mA at 25 °C ambient, calculated from its 250 mW power rating and 3.6 V Zener voltage (I_Z(max) = P_tot/V_Z). Derating applies above 25 °C per the thermal resistance curve in Nexperia's datasheet Rev. 03, with full derating to zero at 150 °C junction temperature.

Is pin 3 electrically connected inside the SOT23 package?

No, pin 3 is internally unconnected (NC) and must remain floating on the PCB. Nexperia's official datasheet explicitly states "Pin 3 not connected" and warns against tying it to ground or V_CC, as this may cause parametric shift or premature failure due to internal stress.

How does the +2.5 mV/K temperature coefficient affect accuracy over −40 °C to +85 °C?

Over that range, total drift is approximately +125 mV (50 K × 2.5 mV/K), resulting in a 3.6 V nominal shifting to ~3.725 V at +85 °C. This is within ±3.5% total variation, acceptable for non-critical references but requires compensation in precision metrology applications.

Can BZX84-C3V6/DG/B3,2 replace BZX84-C3V6,215 in existing designs?

Yes-both share identical electrical specifications, SOT23 package dimensions, and pinout. The only differences are reel packaging (13" vs. 7"), date code format, and traceability markings. No PCB or schematic changes are needed, and both meet the same AEC-Q200 stress test requirements for industrial use.

BZX84-C3V6/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):: 3.6 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 90 Ohms

Current - Reverse Leakage @ Vr:: 5 µA @ 1 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-C3V6/DG/B3,2 FAQ

1.How can I place an order for BZX84-C3V6/DG/B3,2 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C3V6/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-C3V6/DG/B3,2 reliable?

The price and inventory of BZX84-C3V6/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-C3V6/DG/B3,2 is usually 5 days.

3.What payment methods are accepted for BZX84-C3V6/DG/B3,2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C3V6/DG/B3,2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C3V6/DG/B3,2?

BZX84-C3V6/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C3V6/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-C3V6/DG/B3,2?

For technical support, including BZX84-C3V6/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-C3V6/DG/B3,2 requirements.

6.How does Aetrix verify that BZX84-C3V6/DG/B3,2 is sourced from the original manufacturer or authorized distributors?

All BZX84-C3V6/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-C3V6/DG/B3,2 meets industry standards.

7.What is the process for return or replacement of BZX84-C3V6/DG/B3,2?

All BZX84-C3V6/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C3V6/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-C3V6/DG/B3,2 part is unused and in its original packaging.

Return procedure for BZX84-C3V6/DG/B3,2:

1.Submit a request within 90 days.

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

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