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Nexperia USA Inc. BZX384-C2V4-QX
- Part No.:
- BZX384-C2V4-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C2V4-QX.pdf
- Description:
- DIODE ZENER 2.4V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,834
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Product details
Overview
BZX384-C2V4-Q from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 2.4 V nominal breakdown at 5 mA, with 300 mW total power dissipation and 40 W non-repetitive peak reverse power capability. It serves as a precision reference or overvoltage clamp in low-power automotive sensor signal conditioning circuits.
For engineers reviewing the BZX384-C2V4-Q datasheet, BZX384-C2V4-Q pinout, BZX384-C2V4-Q application, or BZX384-C2V4-Q equivalent, key selection criteria include its AEC-Q101 qualification, 2.2 V to 2.6 V Zener voltage range at IZ = 5 mA, 600 Ω max differential resistance, 100 μA max reverse current at VR = 1 V, and thermal resistance of 110 K/W from junction to solder point.
Technical Context
This device operates in reverse-biased Zener breakdown mode with a nominal 2.4 V regulation voltage at 5 mA test current. Its ±5 % tolerance (C-series), 600 Ω maximum dynamic impedance, and -3.5 mV/K to 0.0 mV/K temperature coefficient enable stable DC biasing in ambient-temperature-varying environments.
Designed for surface-mount assembly on FR4 PCBs with single-sided copper, it supports reflow and wave soldering per defined footprints and delivers 450 pF capacitance at 0 V reverse bias-suitable for low-frequency regulation where capacitive loading must remain constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.2 V to 2.6 V at IZ = 5 mA - defines usable regulation window under standard test conditions |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Differential Resistance (rdif) | ≤600 Ω - limits output voltage variation under load current changes |
| Reverse Current (IR) | ≤100 μA at VR = 1 V - ensures low leakage in standby or high-impedance bias networks |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 μs - supports transient surge suppression without failure |
| Junction Temperature (Tj) | 150 °C maximum - enables operation in under-hood automotive environments |
| Thermal Resistance (Rth(j-sp)) | 110 K/W - quantifies heat transfer efficiency from junction to cathode solder point |
Pinout & Package
Package: SOD323 (SC-76), 2-lead surface-mount plastic package with cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines forward/reverse bias orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical stress testing |
| ±5 % Zener tolerance (C-series) | Enables cost-optimized voltage referencing where tight regulation is not required |
| 40 W non-repetitive peak power | Provides robustness against ESD and load-dump transients in 12 V vehicle systems |
| 110 K/W junction-to-solder-point thermal resistance | Supports effective heat extraction through cathode pad in compact PCB layouts |
| 450 pF capacitance at 0 V | Maintains minimal signal distortion in DC-coupled sensor biasing applications |
Applications
| Automotive Cabin Sensor Biasing | Industrial PLC Input Protection |
|---|---|
Use Scenario: Providing stable 2.4 V reference for analog output of cabin temperature/humidity sensors in vehicles. IC Role / Device Role / Timing Role: Zener shunt regulator establishing fixed bias point for sensor excitation circuitry. Use Value: Maintains accuracy across -40 °C to +125 °C ambient due to AEC-Q101 qualification and controlled temperature coefficient. |
Use Scenario: Clamping input transients on 24 V digital I/O channels of programmable logic controllers. IC Role / Device Role / Timing Role: Overvoltage protection element limiting voltage excursion to safe levels during ESD events. Use Value: Absorbs 40 W surges for 100 μs without degradation, preventing damage to downstream interface ICs. |
| Low-Power IoT Node Reference | Consumer Audio DC Bias Network |
Use Scenario: Generating precise 2.4 V reference for ADC in battery-powered environmental monitoring nodes. IC Role / Device Role / Timing Role: Low-leakage voltage reference source minimizing quiescent current draw. Use Value: Draws ≤100 μA at 1 V reverse bias, extending battery life in always-on sensing applications. |
Use Scenario: Setting DC operating point for Class-AB audio amplifier input stages in portable speakers. IC Role / Device Role / Timing Role: Passive bias voltage generator stabilizing transistor Q-point against supply drift. Use Value: 600 Ω max dynamic impedance ensures minimal shift in bias voltage under varying signal loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B2V4-Q | ±2 % tolerance (vs. ±5 %); 2.35 V–2.45 V VZ range; 600 Ω rdif | Narrower voltage spread improves reference accuracy but increases cost | Select when tighter regulation stability is required and budget allows premium tolerance |
| MMSZ4678T1G | 2.4 V nominal, ±5 %, SOD-123 package, 500 mW Ptot, 300 Ω rdif | Larger footprint and higher power rating suit higher-current regulation needs | Choose for designs requiring >300 mW continuous dissipation or legacy SOD-123 layout compatibility |
Compared with BZX384-B2V4-Q, this part trades regulation precision for cost and size efficiency; versus MMSZ4678T1G, it offers smaller SOD323 footprint and automotive qualification at lower power handling-making it optimal for space-constrained, AEC-Q101–compliant low-power biasing.
Availability
BZX384-C2V4-Q is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input protection circuits, and low-power IoT reference designs requiring stable component supply with AEC-Q101 assurance.
Supply support for BZX384-C2V4-Q 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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
BZX384-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for robust voltage regulation and transient protection in harsh-environment electronic control units.
FAQ
What is the maximum continuous reverse current this diode can handle?
The BZX384-C2V4-Q has a maximum forward current rating of 250 mA, but its continuous reverse (Zener) current is limited by power dissipation: at 25 °C ambient, 300 mW / 2.4 V ≈ 125 mA maximum steady-state Zener current. Derating applies above 25 °C per thermal resistance data.
Does this part support reflow soldering, and what profile is recommended?
Yes, the SOD323 package is qualified for lead-free reflow soldering. Nexperia specifies a footprint with 0.5 mm pad width and 2.2 mm center-to-center spacing (Figure 12). Peak temperature must not exceed 260 °C for ≤10 seconds, with ramp rates compliant with J-STD-020.
How does the temperature coefficient affect regulation accuracy over automotive temperature ranges?
At 2.4 V nominal, the BZX384-C2V4-Q exhibits a temperature coefficient between -3.5 mV/K and 0.0 mV/K. Over -40 °C to +125 °C, this introduces up to ±0.576 V drift-acceptable for non-critical biasing but insufficient for precision references without compensation.
Can this diode be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficients and mismatched VZ values, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated device or active regulation instead.
BZX384-C2V4-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384-Q
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.4 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-C2V4-QX FAQ
1.How can I place an order for BZX384-C2V4-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C2V4-QX 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 BZX384-C2V4-QX reliable?
The price and inventory of BZX384-C2V4-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C2V4-QX is usually 5 days.
3.What payment methods are accepted for BZX384-C2V4-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C2V4-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C2V4-QX?
BZX384-C2V4-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C2V4-QX 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 BZX384-C2V4-QX?
For technical support, including BZX384-C2V4-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C2V4-QX requirements.
6.How does Aetrix verify that BZX384-C2V4-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-C2V4-QX 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 BZX384-C2V4-QX meets industry standards.
7.What is the process for return or replacement of BZX384-C2V4-QX?
All BZX384-C2V4-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C2V4-QX, 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 BZX384-C2V4-QX part is unused and in its original packaging.
Return procedure for BZX384-C2V4-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C2V4-QX Tags
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