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

Diodes Incorporated BZX84C2V4Q-7-F

Name: BZX84C2V4Q-7-F
Brand: Diodes Incorporated
SKU: BZX84C2V4Q-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: BZX84C2V4Q-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Zener Diodes

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

Datasheet:: BZX84C2V4Q-7-F.pdf

Description:: DIODE ZENER 2.4V 300MW SOT23

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,000

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

Product details

Overview

BZX84C2V4Q-7-F from Diodes Incorporated is an automotive-grade 2.4V Zener diode in SOT23 package, rated for 350mW power dissipation at 25°C ambient, with ±0.2V zener voltage tolerance at 5mA test current and 100Ω maximum zener impedance at 5mA. It provides precision voltage reference and overvoltage clamping in low-power analog signal conditioning circuits.

For engineers reviewing the BZX84C2V4Q-7-F datasheet, BZX84C2V4Q-7-F pinout, BZX84C2V4Q-7-F application, or BZX84C2V4Q-7-F equivalent, key selection criteria include zener voltage accuracy (2.2–2.6V), low thermal resistance (357°C/W), AEC-Q101 qualification, and SOT23-compatible footprint for space-constrained PCB layouts.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load or supply conditions. Its planar die construction ensures consistent breakdown characteristics and long-term stability, while the matte tin-plated alloy 42 leadframe guarantees reliable solderability per MIL-STD-202.

The device exhibits a negative temperature coefficient of –3.5mV/°C near 2.4V, enabling predictable drift compensation in temperature-sensitive references. Its 1.0µA maximum reverse leakage at 1.0V supports ultra-low standby current designs in battery-powered systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	2.4V nominal, 2.2–2.6V range at 5mA - defines precise clamping/reference point for 3.3V or lower rail monitoring
Power Dissipation (P_D)	350mW at T_A = 25°C - supports continuous operation in compact SOT23 without forced cooling
Zener Impedance (Z_ZT)	≤100Ω at 5mA - ensures minimal voltage shift under dynamic load transients
Reverse Leakage (I_R)	≤50µA at V_R = 1.0V - enables use in high-impedance bias networks without loading error
Thermal Resistance (R_θJA)	357°C/W - allows direct thermal modeling on standard FR-4 PCBs with recommended pad layout
Temperature Coefficient	–3.5mV/°C - enables predictable voltage drift correction in industrial temperature ranges (–40°C to +125°C)

Pinout & Package

Package: SOT23 - surface-mount plastic case, 0.008g weight, UL 94V-0 rated, moisture sensitivity level 1 per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Forward conduction terminal	Connected to lower potential node during normal operation; used for cathode-referenced clamp configurations
Cathode (Pin 2)	Zener breakdown terminal	Connected to regulated node or voltage reference point; carries reverse current during clamping
NC / Heat Sink (Pin 3)	Non-connected / thermal path	No internal connection; serves as mechanical anchor and minor thermal relief via PCB copper pour

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements including HTOL, TC, HAST, and ESD
Green molding compound	Halogen- and antimony-free (<900ppm Br+Cl, <1000ppm Sb) - meets automotive environmental compliance mandates
Planar die construction	Enables tight V_Z distribution (±0.2V) and improved long-term parametric stability vs. diffused junctions
SOT23 footprint compatibility	Standardized 2.4mm × 1.3mm outline with 0.95mm pitch - interoperable with automated pick-and-place and reflow processes

Applications

Automotive Sensor Signal Conditioning

Industrial PLC Input Protection

Use Scenario: Stabilizing reference voltage for analog-to-digital conversion of engine coolant temperature sensor output in engine control units.

IC Role / Device Role: Zener voltage reference providing 2.4V基准 for ADC bias network and overvoltage clamp against load dump transients.

Use Value: Maintains ADC linearity within ±0.5% full-scale error across –40°C to +125°C due to matched temperature coefficient with op-amp input stage.

Use Scenario: Protecting 24V digital input channels in programmable logic controllers from field-wiring induced surges and ESD events.

IC Role / Device Role: Low-energy clamping diode shunting transient energy to ground before reaching downstream optocoupler inputs.

Use Value: Limits input voltage to ≤2.6V during 1kV/μs fast-rising transients, preventing latch-up in CMOS interface ICs without adding series resistance.

USB-C Power Delivery Monitoring

Medical Wearable Battery Management

Use Scenario: Providing accurate voltage threshold detection for USB-C VBUS presence and fault signaling in portable chargers.

IC Role / Device Role: Precision 2.4V reference feeding comparator input to distinguish between 5V, 9V, and 15V PD profiles.

Use Value: Enables <10mV detection hysteresis margin with 50µA quiescent current, extending battery life in always-on monitoring mode.

Use Scenario: Regulating bias voltage for low-power analog front-end amplifiers in ECG patch sensors powered by coin-cell batteries.

IC Role / Device Role: Ultra-low-leakage (≤50µA @ 1V) Zener establishing stable 2.4V reference for instrumentation amplifier gain-setting resistors.

Use Value: Delivers <0.1% reference drift over 5-year shelf life and maintains accuracy after 500 charge/discharge cycles.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMSZ4678T1G	Zener voltage 2.4V (same nominal), but ±5% tolerance (2.28–2.52V); 500mW rating; SOD-123 package	Larger footprint and higher power handling - suitable where board space permits and thermal margin >100mW is required	Select when higher surge robustness is needed and SOT23 footprint is not constrained
BZX384-C2V4,115	Same 2.4V nominal, ±5% tolerance; 300mW rating; SOD-323 package; no AEC-Q101 qualification	Smaller 1.7×1.25mm footprint but lacks automotive reliability validation and has higher R_θJA (450°C/W)	Select for cost-sensitive consumer applications where AEC-Q101 is not mandated

Compared with MMSZ4678T1G and BZX384-C2V4,115, BZX84C2V4Q-7-F offers tighter voltage tolerance (±0.2V), lower thermal resistance (357°C/W), and AEC-Q101 qualification - making it optimal for automotive and industrial applications demanding precision, reliability, and thermal efficiency in SOT23 form factor.

Availability

BZX84C2V4Q-7-F is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and medical wearable power management requiring stable component supply, traceable sourcing, and lifecycle continuity.

Supply support for BZX84C2V4Q-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

The BZX84 series belongs to Diodes' automotive-qualified Zener diode product line, designed specifically for precision voltage regulation and transient suppression in harsh-environment electronic control units and sensor modules.

FAQ

What is the maximum reverse voltage (V_R) before significant leakage occurs?

The BZX84C2V4Q-7-F exhibits ≤50µA reverse current at V_R = 1.0V and ≤1.0µA at V_R = 0.5V. Significant leakage (>10µA) begins only above 1.0V, well below its 2.2V minimum zener knee voltage - confirming effective blocking behavior in forward-biased protection roles.

Does this part support reflow soldering per JEDEC J-STD-020?

Yes - the SOT23 package uses matte tin finish over alloy 42 leadframe, qualified for lead-free reflow per JEDEC J-STD-020 Class 3 peak temperature (260°C). Moisture sensitivity level 1 eliminates bake requirements prior to assembly.

How does the –3.5mV/°C temperature coefficient impact circuit design?

This negative coefficient means output voltage decreases by 3.5mV per °C rise. In precision references, it must be compensated using complementary positive-TC components (e.g., PTAT bias currents) or calibrated in firmware - especially critical in automotive ambient ranges (–40°C to +125°C).

Is the "Q" suffix strictly for automotive qualification?

Yes - the "Q" in BZX84C2V4Q-7-F denotes full AEC-Q101 qualification, including extended temperature testing, accelerated life stress, and failure analysis. Non-Q variants (e.g., BZX84C2V4-7-F) meet commercial specifications only and lack automotive reliability documentation.

BZX84C2V4Q-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 2.4 V

Tolerance:: ±8.33%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 50 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:: SOT-23-3

BZX84C2V4Q-7-F FAQ

1.How can I place an order for BZX84C2V4Q-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX84C2V4Q-7-F 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 BZX84C2V4Q-7-F reliable?

The price and inventory of BZX84C2V4Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C2V4Q-7-F is usually 5 days.

3.What payment methods are accepted for BZX84C2V4Q-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C2V4Q-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX84C2V4Q-7-F?

BZX84C2V4Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX84C2V4Q-7-F 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 BZX84C2V4Q-7-F?

For technical support, including BZX84C2V4Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C2V4Q-7-F requirements.

6.How does Aetrix verify that BZX84C2V4Q-7-F is sourced from the original manufacturer or authorized distributors?

All BZX84C2V4Q-7-F 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 BZX84C2V4Q-7-F meets industry standards.

7.What is the process for return or replacement of BZX84C2V4Q-7-F?

All BZX84C2V4Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C2V4Q-7-F, 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 BZX84C2V4Q-7-F part is unused and in its original packaging.

Return procedure for BZX84C2V4Q-7-F:

1.Submit a request within 90 days.

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

Tech Hub

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…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…