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Nexperia USA Inc. BZX384-B6V2-QX
- Part No.:
- BZX384-B6V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B6V2-QX.pdf
- Description:
- DIODE ZENER 6.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,435
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Product details
Overview
BZX384-B6V2-Q from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 6.2 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and qualified to AEC-Q101 for automotive use. It provides stable reference voltage in low-power biasing, overvoltage protection, and voltage clamping circuits.
For engineers reviewing the BZX384-B6V2-Q datasheet, BZX384-B6V2-Q pinout, BZX384-B6V2-Q application, or BZX384-B6V2-Q equivalent, key selection criteria include its 6.08–6.32 V Zener voltage range at IZ = 5 mA, 150 Ω max differential resistance, <10 μA reverse current at 4.96 V, +0.4 to +3.7 mV/K temperature coefficient, and SOD323 thermal resistance of 110 K/W to solder point.
Technical Context
This device operates in reverse-bias breakdown mode with tightly controlled Zener voltage tolerance (±2 %), enabling precise DC voltage referencing in space-constrained automotive and industrial PCBs. Its low 150 °C maximum junction temperature rating and AEC-Q101 qualification confirm suitability for under-hood and control module environments.
The diode exhibits a positive temperature coefficient (+0.4 to +3.7 mV/K) across its operating current range, supporting stable regulation under varying thermal loads. Non-repetitive peak reverse power dissipation reaches 40 W for 100 μs pulses, allowing transient surge suppression without derating in short-duration fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.08 V to 6.32 V at IZ = 5 mA - defines usable regulation window for 6.2 V nominal reference |
| Differential Resistance (rdif) | ≤150 Ω - ensures minimal output voltage shift under load current variation |
| Reverse Current (IR) | <10 μA at VR = 4.96 V - guarantees low leakage in standby or high-impedance sensing nodes |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C on FR4 PCB - sets continuous DC bias limit for thermal design |
| Temperature Coefficient (SZ) | +0.4 to +3.7 mV/K - quantifies voltage drift per degree rise, critical for wide-temperature operation |
| Peak Pulse Power (PZSM) | 40 W for tp = 100 μs - supports ESD/ISO 7637-2 transient suppression without failure |
| Junction Temperature (Tj) | −65 °C to +150 °C - enables deployment in engine control units and powertrain modules |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case with 2 leads, 1.35 mm × 0.85 mm footprint, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines reverse-bias orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ±2 % Zener tolerance | Reduces binning requirements and simplifies reference voltage calibration in production |
| Low thermal resistance (110 K/W) | Enables higher sustained power handling on standard FR4 PCB without heatsinking |
| Non-repetitive 40 W pulse rating | Provides built-in transient immunity against ISO 16750-2 load dump spikes up to 100 μs |
| SOD323 footprint compatibility | Matches industry-standard 0805-equivalent land pattern for automated placement and reflow |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Voltage reference for microcontroller ADC inputs monitoring door lock status and interior lighting feedback. IC Role / Device Role / Timing Role: Zener diode providing stable 6.2 V reference to analog front-end circuitry. Use Value: Maintains <±0.1 % reference accuracy over −40 °C to +125 °C ambient, ensuring consistent ADC code mapping across vehicle lifetime. |
Use Scenario: Clamping diode protecting op-amp inputs from ESD events in factory-floor pressure transducer interfaces. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting input voltage to 6.32 V during fast transients. Use Value: Absorbs 40 W surges within 100 μs without degradation, eliminating need for external TVS in cost-sensitive designs. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Biasing |
|
Use Scenario: Secondary-side voltage reference in flyback converter feedback loop for USB-C PD chargers. IC Role / Device Role / Timing Role: Precision Zener setting optocoupler LED current to regulate output voltage. Use Value: ±2 % tolerance eliminates post-production trimming, reducing assembly time and test cost. |
Use Scenario: Stable bias source for photodiode amplifier stages in portable blood oximeters. IC Role / Device Role / Timing Role: Low-noise Zener supplying clean 6.2 V to op-amp supply rails. Use Value: <10 μA leakage at 4.96 V prevents signal offset drift in high-gain, low-current measurement paths. |
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-A6V2-Q | ±1 % tolerance (6.13–6.27 V), higher cost, tighter rdif (≤100 Ω) | Better for precision references where <0.05 % regulation error is required | Select when absolute voltage accuracy outweighs cost sensitivity |
| BZX384-C6V2-Q | ≈±5 % tolerance (5.80–6.60 V), lower cost, higher rdif (≤200 Ω) | Suitable for non-critical clamping or coarse threshold detection | Choose for cost-driven consumer electronics with relaxed voltage stability needs |
Compared with BZX384-B6V2-Q, the A-grade offers superior voltage precision at higher unit cost and tighter thermal drift, while the C-grade trades accuracy for economy in non-safety-critical roles-making the B-grade optimal for balanced automotive and industrial regulation where ±2 % meets functional safety targets without over-engineering.
Availability
BZX384-B6V2-Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, consumer power adapter feedback loops, and medical diagnostic equipment requiring stable component supply with AEC-Q101 assurance.
Supply support for BZX384-B6V2-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.
The BZX384-Q series belongs to Nexperia's automotive-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient protection in harsh-environment electronic control units.
FAQ
What is the maximum continuous forward current for BZX384-B6V2-Q?
The device is not intended for continuous forward conduction; its absolute maximum forward current is 250 mA per limiting values table, but typical operation occurs in reverse-bias Zener mode. Forward voltage is specified at 10 mA (≤0.9 V) and 100 mA (≤1.1 V) for characterization only.
Can BZX384-B6V2-Q replace older BZX384-B6V2 variants without layout changes?
Yes-BZX384-B6V2-Q maintains identical SOD323 package dimensions, pinout, and thermal footprint as legacy BZX384-B6V2 parts. The "-Q" suffix denotes AEC-Q101 qualification; no PCB redesign is needed for drop-in replacement in automotive or industrial upgrades.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
With a specified +0.4 to +3.7 mV/K coefficient at IZ = 5 mA, the Zener voltage shifts approximately +230 mV across this 165 K range. This drift is predictable and acceptable for non-precision applications; compensation is unnecessary in systems using ratiometric ADCs or digital calibration.
Is BZX384-B6V2-Q suitable for bidirectional ESD protection?
No-it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, a dedicated TVS diode such as PESD5V0S1BA should be used. BZX384-B6V2-Q provides effective clamping only in the reverse direction above 6.08 V.
BZX384-B6V2-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:
- ±2%
- 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-B6V2-QX FAQ
1.How can I place an order for BZX384-B6V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B6V2-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-B6V2-QX reliable?
The price and inventory of BZX384-B6V2-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-B6V2-QX is usually 5 days.
3.What payment methods are accepted for BZX384-B6V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B6V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B6V2-QX?
BZX384-B6V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B6V2-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-B6V2-QX?
For technical support, including BZX384-B6V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B6V2-QX requirements.
6.How does Aetrix verify that BZX384-B6V2-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-B6V2-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-B6V2-QX meets industry standards.
7.What is the process for return or replacement of BZX384-B6V2-QX?
All BZX384-B6V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B6V2-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-B6V2-QX part is unused and in its original packaging.
Return procedure for BZX384-B6V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-B6V2-QX Tags
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