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Diodes Incorporated BZX84C2V4-7
- Part No.:
- BZX84C2V4-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C2V4-7.pdf
- Description:
- DIODE ZENER 2.4V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,315
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Product details
Overview
BZX84C2V4-7 from Diodes Incorporated is a 2.4 V, 5 mA nominal Zener voltage regulator diode in SOT23 package, rated for 350 mW power dissipation at TA = +25°C, with 100 Ω maximum Zener impedance at test current and -3.5 mV/°C temperature coefficient - used for precision low-voltage reference and overvoltage clamping in power supply feedback paths.
For engineers reviewing the BZX84C2V4-7 datasheet, BZX84C2V4-7 pinout, BZX84C2V4-7 application, or BZX84C2V4-7 equivalent, key selection criteria include Zener voltage tolerance (±0.2 V), low thermal coefficient, SOT23 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 2.4 V at 5.0 mA test current, maintaining regulation across 1.0–50 µA reverse leakage range. Its planar die construction ensures stable voltage output under transient load conditions.
Thermal resistance junction-to-ambient is 357 °C/W under free-air conditions with terminals held at ambient temperature, enabling reliable operation up to +150°C junction temperature. The device exhibits a negative temperature coefficient of -3.5 mV/°C, supporting predictable drift compensation in analog reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.4 V nominal at 5.0 mA - defines precise DC reference point for feedback networks |
| Zener Voltage Range | 2.2 V to 2.6 V - ±0.2 V tolerance enables tight regulation in low-voltage rails |
| Power Dissipation | 350 mW - supports continuous operation in compact SOT23 layout without forced cooling |
| Zener Impedance (ZZT) | 100 Ω max at 1 kHz - ensures minimal AC ripple coupling into reference nodes |
| Reverse Current (IR) | 50 µA max at VR = 1.0 V - guarantees low standby leakage in battery-powered systems |
| Temperature Coefficient | -3.5 mV/°C - enables predictable voltage drift modeling for temperature-compensated designs |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - allows use as low-drop clamp or ESD protection in forward bias |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current sink in reverse bias / cathode connection in forward bias | Connected to ground or lower-potential node when regulating; polarity must match schematic symbol |
| Cathode (Pin 2) | Current source in reverse bias / anode connection in forward bias | Connected to regulated voltage node; determines Zener breakdown direction and clamping polarity |
| NC / Heat Sink (Pin 3) | Non-connected terminal | Internally unconnected; no electrical function - serves mechanical stability only |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables consistent Zener voltage distribution and long-term parametric stability |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb |
| SOT23 footprint | Standardized 3-pin package compatible with automated pick-and-place and reflow processes |
| Low thermal resistance | 357 °C/W junction-to-ambient allows operation at full power without heatsinking |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp for MCU I/O |
|---|---|
|
Use Scenario: Regulating 3.3 V or 2.5 V LDO output using TL431 or discrete op-amp feedback loop. IC Role / Device Role: Provides stable 2.4 V reference voltage to set output voltage threshold. Use Value: Tight 2.2–2.6 V tolerance ensures ±0.6% output accuracy over production lot variation. |
Use Scenario: Protecting 3.3 V GPIO pins against ESD or transient overvoltage events. IC Role / Device Role: Shunts excess voltage above 2.4 V to ground during fault conditions. Use Value: 350 mW rating sustains 100 ms transients up to 100 mA without degradation. |
| Automotive Sensor Biasing | Low-Voltage Battery Monitor Reference |
|
Use Scenario: Supplying excitation voltage to resistive temperature sensors in cabin climate modules. IC Role / Device Role: Delivers stable 2.4 V bias independent of 9–16 V battery fluctuations. Use Value: AEC-Q101 qualification ensures operation across -40°C to +125°C ambient range. |
Use Scenario: Setting threshold for lithium-ion battery undervoltage lockout at 2.4 V per cell. IC Role / Device Role: Acts as comparator reference input for battery protection ICs. Use Value: -3.5 mV/°C TC allows accurate cold-temperature cutoff without external compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BS-7-F | Zener voltage 2.4 V, 300 mW rating, 150 Ω ZZT, same SOT23 package | Higher Zener impedance reduces regulation precision in low-current feedback loops | Select when cost sensitivity outweighs tight voltage tolerance requirements |
| BZX84-C2V4,115 | Identical electrical specs, same Diodes Inc. die, but packaged in 10,000/reel (13-F) format | No functional difference - differs only in packaging quantity and reel marking | Select for high-volume production requiring larger tape-and-reel quantities |
Compared with MMBZ5221BS-7-F, BZX84C2V4-7 offers tighter voltage tolerance and lower impedance for precision references; compared with BZX84-C2V4,115, it provides identical performance in smaller 3,000/reel packaging suited for prototyping and mid-volume builds.
Availability
BZX84C2V4-7 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial power supply feedback circuits, and portable battery management systems requiring stable component supply with AEC-Q101 compliance and RoHS 3 conformance.
Supply support for BZX84C2V4-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZX84 series belongs to Diodes' standard Zener diode product line, engineered for high-reliability voltage regulation and clamping in automotive, industrial, and consumer power management applications.
FAQ
What is the maximum reverse current specification for BZX84C2V4-7 at 1.0 V?
The maximum reverse current (IR) is 50 µA at VR = 1.0 V, measured at TA = +25°C. This low leakage ensures minimal loading on high-impedance reference nodes and preserves battery life in always-on monitoring circuits. The value is guaranteed across the full operating temperature range per the datasheet's Electrical Characteristics table.
Is BZX84C2V4-7 suitable for use in automotive applications?
Yes - BZX84C2V4-7 is qualified to AEC-Q101 standards, confirming its suitability for automotive applications including engine control, body electronics, and infotainment systems. It operates reliably from -65°C to +150°C junction temperature and meets stringent vibration, thermal cycling, and humidity resistance requirements defined in the AEC specification.
How does the -3.5 mV/°C temperature coefficient affect circuit performance?
The negative temperature coefficient means the Zener voltage decreases by 3.5 mV per degree Celsius rise in junction temperature. In precision reference designs, this drift must be accounted for via layout thermal isolation or system-level calibration; however, it enables predictable compensation when paired with positive-TC components like silicon bandgap references.
Can BZX84C2V4-7 replace a 2.4 V Zener in a 5 V rail overvoltage clamp?
Yes - when configured with appropriate series current-limiting resistance, BZX84C2V4-7 clamps voltages above 2.4 V to protect downstream 3.3 V logic. Its 350 mW rating supports transient energy absorption up to 100 mA for short durations. Ensure the series resistor limits peak current to ≤350 mA to avoid exceeding absolute maximum ratings.
BZX84C2V4-7 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:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±8%
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C2V4-7 FAQ
1.How can I place an order for BZX84C2V4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C2V4-7 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 BZX84C2V4-7 reliable?
The price and inventory of BZX84C2V4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C2V4-7 is usually 5 days.
3.What payment methods are accepted for BZX84C2V4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C2V4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C2V4-7?
BZX84C2V4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C2V4-7 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 BZX84C2V4-7?
For technical support, including BZX84C2V4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C2V4-7 requirements.
6.How does Aetrix verify that BZX84C2V4-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C2V4-7 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 BZX84C2V4-7 meets industry standards.
7.What is the process for return or replacement of BZX84C2V4-7?
All BZX84C2V4-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C2V4-7, 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 BZX84C2V4-7 part is unused and in its original packaging.
Return procedure for BZX84C2V4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C2V4-7 Tags
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