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Nexperia USA Inc. BZX384-A6V2-QX
- Part No.:
- BZX384-A6V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-A6V2-QX.pdf
- Description:
- DIODE ZENER 6.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:721
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Product details
Overview
BZX384-A6V2-Q from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 6.2 V nominal breakdown at 5 mA, with 150 Ω max differential resistance, 3 μA max reverse current at 4.96 V, and AEC-Q101 qualification for automotive power rail stabilization.
For engineers reviewing the BZX384-A6V2-Q datasheet, BZX384-A6V2-Q pinout, BZX384-A6V2-Q application, or BZX384-A6V2-Q equivalent, this part supports precision voltage reference, overvoltage clamping, and ESD protection in space-constrained automotive ECUs, industrial sensor interfaces, and low-power IoT power management circuits.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its ±1 % tolerance and low 150 Ω dynamic impedance ensure tight regulation within 6.13–6.27 V at IZ = 5 mA.
Designed for automotive-grade reliability, it sustains non-repetitive peak reverse power up to 40 W (100 μs pulse), junction temperatures up to 150 °C, and meets AEC-Q101 stress test requirements for discrete semiconductors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 6.13 V to 6.27 V at IZ = 5 mA - defines precise clamping threshold for 6.2 V nominal rail |
| Differential Resistance rdif | ≤150 Ω - ensures minimal voltage shift under load current variation |
| Reverse Current IR | ≤3 μA at VR = 4.96 V - guarantees low leakage in standby mode |
| Power Dissipation Ptot | 300 mW at Tamb ≤ 25 °C - sets continuous thermal limit on standard FR4 PCB |
| Temperature Coefficient SZ | +0.4 mV/K to +3.7 mV/K - indicates positive drift enabling compensation in multi-diode references |
| Non-repetitive Peak Power | 40 W (100 μs pulse) - supports transient surge suppression without failure |
| Junction Temperature Range | −65 °C to +150 °C - enables operation in under-hood automotive environments |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case with cathode marked by bar on top surface; dimensions 1.8 mm × 1.35 mm × 0.95 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines correct orientation for reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| ±1 % voltage tolerance | Enables direct replacement of higher-cost precision references in cost-sensitive 6.2 V regulation paths |
| Low 150 Ω dynamic impedance | Maintains <±10 mV output deviation across 1–10 mA load current range |
| 40 W non-repetitive surge rating | Withstands ISO 7637-2 pulse 1/2/5a transients without degradation in 12 V systems |
| SOD323 footprint compatibility | Matches JEDEC SC-76 standard for automated placement and reflow soldering on high-density PCBs |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 6.2 V reference for LIN bus transceiver bias and microcontroller I/O protection. IC Role / Device Role / Timing Role: Zener clamp providing overvoltage protection and clean supply rail for analog front-end circuitry. Use Value: Prevents latch-up during load-dump events while maintaining <±15 mV regulation error over −40 °C to +125 °C ambient. |
Use Scenario: Generating stable 6.2 V reference for 12-bit ADC in temperature/humidity sensor nodes. IC Role / Device Role / Timing Role: Precision voltage reference source with low tempco drift for ratiometric measurement accuracy. Use Value: Enables ±0.5 % full-scale measurement linearity without external trimming, leveraging +0.4 to +3.7 mV/K coefficient matching. |
| IoT Edge Node Power Management | Consumer USB-C Power Negotiation Circuit |
Use Scenario: Clamping auxiliary 6.2 V rail derived from buck converter in battery-powered smart home hub. IC Role / Device Role / Timing Role: Low-leakage (≤3 μA) shunt regulator maintaining rail integrity during deep-sleep modes. Use Value: Reduces quiescent current by 85 % versus 3-terminal LDO alternatives while meeting 6.2 V ±1 % spec. |
Use Scenario: Providing 6.2 V threshold detection for USB PD sink negotiation logic in portable audio devices. IC Role / Device Role / Timing Role: Fast-response voltage comparator input reference with 100 ns turn-on delay under surge. Use Value: Ensures reliable CC line voltage detection during hot-plug events with 40 W transient immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B6V2-Q | ±2 % tolerance (6.08–6.32 V), 80 Ω max rdif, 2 μA max IR at 4.96 V | Lower cost, wider voltage spread; suitable where 6.2 V ±2 % is acceptable | Select when tighter tolerance is unnecessary and lower dynamic impedance improves regulation under variable load |
| MMSZ4687T1G | ±5 % tolerance (5.89–6.51 V), 100 Ω max rdif, 1 μA max IR at 4.96 V, SOD-123 package | Larger footprint (SOD-123), lower surge rating (30 W), no AEC-Q101 certification | Choose for non-automotive consumer designs requiring lower leakage and legacy footprint compatibility |
Compared with BZX384-A6V2-Q, the BZX384-B6V2-Q offers better dynamic regulation but looser voltage accuracy, while MMSZ4687T1G trades automotive qualification and surge robustness for lower leakage and broader availability-making the A-grade part optimal for AEC-Q101-compliant 6.2 V reference design.
Availability
BZX384-A6V2-Q is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal chains, and low-power IoT edge nodes requiring stable component supply with guaranteed long-term continuity.
Supply support for BZX384-A6V2-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZX384-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient protection in harsh automotive and industrial environments.
FAQ
What is the maximum steady-state power dissipation for BZX384-A6V2-Q?
The device is rated for 300 mW total power dissipation at ambient temperature ≤25 °C when mounted on a standard FR4 PCB with single-sided copper and tin plating. Derating is required above 25 °C per the 415 K/W junction-to-ambient thermal resistance; at 85 °C ambient, maximum usable power drops to approximately 175 mW.
How does the temperature coefficient affect regulation stability across automotive temperature ranges?
With a specified temperature coefficient of +0.4 to +3.7 mV/K, the BZX384-A6V2-Q exhibits positive voltage drift as temperature increases. Over −40 °C to +125 °C, this results in a typical VZ shift of +200 to +450 mV, which must be accounted for in reference-critical designs-though its tight ±1 % initial tolerance and low rdif mitigate overall error.
Can BZX384-A6V2-Q replace older BZX55 or BZX79 series diodes in existing designs?
No direct drop-in replacement is possible due to differing packages: BZX384-A6V2-Q uses SOD323 (1.8 × 1.35 mm), while BZX55/BZX79 use DO-35 (4.5 × 2.5 mm) or DO-41 (5.2 × 2.7 mm). Layout redesign and solder paste stencil updates are required; however, electrical parameters (6.2 V, 300 mW, AEC-Q101) make it a superior upgrade for new automotive or space-constrained designs.
What is the significance of the 'Q' suffix in BZX384-A6V2-Q?
The 'Q' suffix denotes Nexperia's automotive-qualified version, indicating full compliance with AEC-Q101 stress testing-including HTGB, AC/DC life test, temperature cycling, and mechanical shock-plus extended temperature range (−65 °C to +150 °C) and traceable lot-level documentation required for automotive production.
BZX384-A6V2-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):
- 6.2 V
- Tolerance:
- ±1%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 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-A6V2-QX FAQ
1.How can I place an order for BZX384-A6V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-A6V2-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-A6V2-QX reliable?
The price and inventory of BZX384-A6V2-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-A6V2-QX is usually 5 days.
3.What payment methods are accepted for BZX384-A6V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-A6V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-A6V2-QX?
BZX384-A6V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-A6V2-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-A6V2-QX?
For technical support, including BZX384-A6V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-A6V2-QX requirements.
6.How does Aetrix verify that BZX384-A6V2-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-A6V2-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-A6V2-QX meets industry standards.
7.What is the process for return or replacement of BZX384-A6V2-QX?
All BZX384-A6V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-A6V2-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-A6V2-QX part is unused and in its original packaging.
Return procedure for BZX384-A6V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-A6V2-QX Tags
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