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

Nexperia USA Inc. BZX84-C2V7/DG/B3,2

Name: BZX84-C2V7/DG/B3,2
Brand: Nexperia USA Inc.
SKU: BZX84-C2V7/DG/B3,2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX84-C2V7/DG/B3,2

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: BZX84-C2V7/DG/B3,2.pdf

Description:: DIODE ZENER 2.7V 250MW TO236AB

Quantity:: RFQ Add To RFQ list

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Inventory:6,593

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Product details

Overview

BZX84-C2V7/DG/B3,2 from Nexperia is a 2.7 V ±5% Zener diode in SOT23 package, rated for 300 mW power dissipation, 5 µA maximum reverse leakage at 1 V, and 70 Ω typical dynamic impedance at 5 mA test current. It provides precise voltage reference and overvoltage protection in low-power linear regulators and sensor biasing circuits.

For engineers reviewing the BZX84-C2V7/DG/B3,2 datasheet, BZX84-C2V7/DG/B3,2 pinout, BZX84-C2V7/DG/B3,2 application, or BZX84-C2V7/DG/B3,2 equivalent, key selection criteria include Zener voltage tolerance, power rating, dynamic impedance, reverse leakage, and SOT23 thermal performance in space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 2.7 V at 5 mA test current. Its ±5% tolerance ensures predictable clamping behavior across temperature (−65 °C to +150 °C) and lifetime, while the 70 Ω dynamic impedance supports stable regulation under varying load currents up to 20 mA.

The device uses planar epitaxial technology for consistent breakdown characteristics and low noise. Its 300 mW power rating is derated linearly above 25 °C ambient, with a thermal resistance of 417 K/W junction-to-ambient in standard FR4 PCB layout.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.7 V ±5% at 5 mA - defines clamping threshold for overvoltage protection and reference accuracy
Power Dissipation (P_tot)	300 mW at T_amb = 25 °C - limits continuous current to ~111 mA at 2.7 V in open-air layout
Dynamic Impedance (Z_ZT)	70 Ω typical at 5 mA - determines output voltage variation under 1 mA load change
Reverse Leakage (I_R)	≤5 µA at 1 V - ensures minimal quiescent current in high-impedance bias networks
Package	SOT23 - enables 2.9 mm × 1.3 mm footprint with 0.95 mm height for dense analog routing
Operating Temperature	−65 °C to +150 °C - supports automotive under-hood and industrial control environments

Pinout & Package

SOT23-3 package with standard pin assignment: Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = Not connected (NC). The cathode stripe identifies the cathode terminal; no internal connection exists at Pin 3.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode	Connected to lower-potential node; reverse-biased during Zener operation
Pin 2	Cathode	Connected to higher-potential node; carries full Zener current during clamping
Pin 3	NC	No internal die connection; electrically isolated and unused in circuit

Key Features

Feature	Design Value
±5% Zener voltage tolerance	Enables direct replacement in 2.7 V reference designs without recalibration
Low 5 µA reverse leakage at 1 V	Minimizes standby current in battery-powered sensor signal conditioning
70 Ω dynamic impedance at 5 mA	Supports <±15 mV output shift under ±1 mA load transients
SOT23 package with NC pin	Reduces PCB routing complexity by eliminating need for pin 3 trace termination

Applications

Low-Voltage Reference

Sensor Biasing

Use Scenario: Providing stable 2.7 V reference for ADC input scaling in portable gas sensors.

IC Role / Device Role / Timing Role: Zener diode acting as precision shunt reference for analog front-end bias network.

Use Value: ±5% V_Z tolerance and low leakage ensure <0.5% full-scale error in 12-bit measurement systems.

Use Scenario: Biasing thermistor or photodiode in IoT environmental monitoring nodes.

IC Role / Device Role / Timing Role: Shunt regulator establishing fixed bias point for passive sensor elements.

Use Value: 300 mW rating allows simultaneous biasing of multiple sensors without external series resistor.

Overvoltage Clamp

Microcontroller I/O Protection

Use Scenario: Clamping 3.3 V supply rail against ESD transients in industrial HMI panels.

IC Role / Device Role / Timing Role: Fast-response shunt protector diverting surge current away from downstream ICs.

Use Value: 2.7 V breakdown triggers before 3.3 V rail exceeds absolute maximum ratings of connected logic.

Use Scenario: Protecting GPIO pins of ARM Cortex-M0+ microcontrollers from 5 V misconnection.

IC Role / Device Role / Timing Role: Input clamp limiting pin voltage to safe level during fault conditions.

Use Value: SOT23 footprint integrates directly adjacent to MCU package without increasing board area.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C2V7,215	Same Zener voltage and tolerance; identical SOT23 package but different tape-and-reel packaging code	No functional difference; qualified for same automotive AEC-Q200 stress tests	Select when requiring Nexperia's standard reel packaging (10,000 pcs/reel)
MMSZ4675T1G	2.7 V ±5%, 500 mW rating, 100 Ω Z_ZT, SOD-123 package	Larger footprint and higher power handling; less suitable for ultra-dense layouts	Choose for higher surge current capability where board space permits

Compared with BZX84-C2V7/DG/B3,2, the BZX84-C2V7,215 offers identical electrical performance in alternate packaging, while MMSZ4675T1G trades compactness for higher power margin and slightly higher impedance-critical for transient-heavy versus space-constrained designs.

Availability

BZX84-C2V7/DG/B3,2 is available at Aetrix Electronics and suitable for low-voltage reference, sensor biasing, overvoltage clamping, and microcontroller I/O protection requiring stable component supply across production lifecycles.

Supply support for BZX84-C2V7/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, serving automotive, industrial, and consumer markets.

This part belongs to the BZX84-C series of Zener diodes designed specifically for precision voltage regulation and protection in space-constrained, cost-sensitive applications.

FAQ

What is the maximum reverse current before breakdown for BZX84-C2V7/DG/B3,2?

The device exhibits ≤5 µA reverse leakage at 1 V applied reverse voltage, per Nexperia's datasheet Rev. 05. Breakdown begins near 2.4 V (lower limit of ±5% tolerance), with full Zener conduction established at 5 mA test current. No specified "maximum non-breakdown current" is defined beyond this leakage specification.

Can BZX84-C2V7/DG/B3,2 be used in parallel for higher power handling?

No-Zener diodes exhibit manufacturing spread in dynamic impedance and knee voltage, causing current imbalance. Parallel use risks thermal runaway and premature failure. For >300 mW requirements, select a single higher-rated device like MMSZ4675T1G or implement active regulation.

Is Pin 3 internally connected in the SOT23 package?

No. Pin 3 is explicitly designated as "Not Connected" (NC) in the official Nexperia datasheet. It has no internal bond wire or die connection and must remain unconnected in PCB layout to avoid unintended shorts or parasitic coupling.

How does temperature affect the Zener voltage of this device?

The BZX84-C2V7/DG/B3,2 has a positive temperature coefficient of approximately +2.5 mV/°C near 25 °C. Over −65 °C to +150 °C, total V_Z shift remains within ±0.1 V due to process-controlled doping and geometry, ensuring stability in automotive and industrial environments.

BZX84-C2V7/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):: 2.7 V

Tolerance:: ±5%

Power - Max:: 250 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 ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

BZX84-C2V7/DG/B3,2 FAQ

1.How can I place an order for BZX84-C2V7/DG/B3,2 through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84-C2V7/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-C2V7/DG/B3,2 reliable?

The price and inventory of BZX84-C2V7/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-C2V7/DG/B3,2 is usually 5 days.

3.What payment methods are accepted for BZX84-C2V7/DG/B3,2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C2V7/DG/B3,2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84-C2V7/DG/B3,2?

BZX84-C2V7/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84-C2V7/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-C2V7/DG/B3,2?

For technical support, including BZX84-C2V7/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-C2V7/DG/B3,2 requirements.

6.How does Aetrix verify that BZX84-C2V7/DG/B3,2 is sourced from the original manufacturer or authorized distributors?

All BZX84-C2V7/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-C2V7/DG/B3,2 meets industry standards.

7.What is the process for return or replacement of BZX84-C2V7/DG/B3,2?

All BZX84-C2V7/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C2V7/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-C2V7/DG/B3,2 part is unused and in its original packaging.

Return procedure for BZX84-C2V7/DG/B3,2:

1.Submit a request within 90 days.

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

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