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Nexperia USA Inc. BZX384-B5V6-QX
- Part No.:
- BZX384-B5V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B5V6-QX.pdf
- Description:
- DIODE ZENER 5.6V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,426
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Product details
Overview
BZX384-B5V6-Q from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 5.6 V nominal breakdown at 5 mA, with 300 mW total power dissipation and AEC-Q101 qualification for automotive load-dump protection and voltage reference circuits.
For engineers reviewing the BZX384-B5V6-Q datasheet, BZX384-B5V6-Q pinout, BZX384-B5V6-Q application, or BZX384-B5V6-Q equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, reverse current limits, and automotive-grade reliability data required for precision biasing, overvoltage clamping, and ECU reference design.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable 5.6 V output across load variations by conducting reverse current above its specified Zener knee. Its 400 Ω typical differential resistance at 5 mA ensures low dynamic impedance for noise-sensitive references.
Designed for automotive environments, it sustains junction temperatures up to 150 °C and withstands non-repetitive 40 W surge pulses (100 μs), with a +2.5 mV/K temperature coefficient enabling predictable drift compensation in engine control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.49 V to 5.71 V at IZ = 5 mA - defines precise clamping threshold for 5 V rail protection |
| Differential Resistance rdif | 400 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Current IR | 1 μA max at VR = 4 V - guarantees low leakage in standby mode for battery-powered systems |
| Temperature Coefficient SZ | +2.5 mV/K at IZ = 5 mA - enables predictable thermal drift modeling in under-hood applications |
| Non-repetitive Peak Power | 40 W at tp = 100 μs - supports transient suppression of ISO 7637-2 pulse 1 and pulse 2a surges |
| Total Power Dissipation | 300 mW at Tamb ≤ 25 °C on FR4 PCB - sets continuous thermal limit for compact PCB layouts |
| Junction Temperature | −65 °C to +150 °C - validated for under-hood operation in passenger and commercial vehicles |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads, 1.35 mm × 0.85 mm footprint, 0.45 mm height, and cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test standard, including HTGB, HTRB, and temperature cycling |
| ±2 % Zener tolerance | Tighter than ±5 % C-series variants, reducing binning requirements in precision reference designs |
| Low 400 Ω dynamic impedance | Minimizes output voltage deviation during fast load steps in sensor signal conditioning circuits |
| 150 °C max junction temperature | Enables placement near heat sources (e.g., power MOSFETs) without derating in engine control units |
| 40 W surge capability | Withstands automotive load-dump events without degradation when used with series current-limiting resistor |
Applications
| Automotive ECU Voltage Reference | Industrial Sensor Biasing |
|---|---|
|
Use Scenario: Providing stable 5.6 V reference for analog-to-digital converters in engine control units. IC Role / Device Role / Timing Role: Shunt voltage reference establishing accurate ADC input scaling under varying battery voltage (9–16 V). Use Value: ±2 % tolerance and +2.5 mV/K TC enable <10 mV total error over −40 °C to +125 °C ambient range. |
Use Scenario: Biasing bridge sensors in factory automation pressure transmitters. IC Role / Device Role / Timing Role: Precision excitation source for Wheatstone bridge outputs requiring low-drift DC bias. Use Value: 400 Ω differential resistance suppresses noise coupling into high-gain instrumentation amplifiers. |
| USB Port Overvoltage Clamp | Power Supply Feedback Divider |
|
Use Scenario: Protecting USB 2.0 data lines from ESD and cable-induced transients. IC Role / Device Role / Timing Role: Low-capacitance (300 pF) shunt clamp limiting line voltage to 5.71 V peak. Use Value: 1 μA reverse leakage at 4 V prevents signal attenuation in high-impedance D+/D− paths. |
Use Scenario: Setting feedback threshold in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener element in optocoupler feedback network defining 5.6 V trigger point for TL431 replacement. Use Value: 300 mW power rating allows direct integration without external heatsinking in space-constrained adapters. |
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-B5V1-Q | 5.0 V nominal Zener voltage, ±2 %, 480 Ω rdif | Used where 5.0 V logic-level clamping is required instead of 5.6 V | Select when matching legacy 5 V rail protection schemes or interfacing with 5 V microcontrollers |
| BZX384-C5V6-Q | Same 5.6 V nominal voltage but ±5 % tolerance and 300 Ω rdif | Lower cost alternative where tighter voltage accuracy is not critical | Choose for cost-sensitive consumer electronics where ±5 % tolerance satisfies system margin |
Compared with BZX384-B5V6-Q, the BZX384-B5V1-Q shifts regulation to 5.0 V for TTL-compatible clamping, while BZX384-C5V6-Q trades ±2 % accuracy for lower unit cost-making the B-series optimal for automotive-grade 5.6 V references demanding both precision and surge resilience.
Availability
BZX384-B5V6-Q is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor signal conditioning, USB port protection, and isolated power supply feedback requiring stable component supply with AEC-Q101 traceability.
Supply support for BZX384-B5V6-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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency and miniaturization.
The BZX384-Q series targets automotive and industrial voltage regulation, engineered for AEC-Q101 compliance, tight tolerances, and robust surge handling in space-constrained SMD applications.
FAQ
What is the maximum continuous reverse current for BZX384-B5V6-Q?
The device has no specified maximum continuous reverse current; operation is defined by power dissipation limits. At 5.6 V, maximum DC current is 53.6 mA (300 mW ÷ 5.6 V), constrained by thermal resistance and ambient conditions. Derating is required above 25 °C ambient per Rth(j-a) = 415 K/W.
How does the +2.5 mV/K temperature coefficient affect circuit performance?
This positive coefficient means output voltage increases by 2.5 mV per Kelvin rise in junction temperature. In a 125 °C under-hood environment, VZ rises ~250 mV above 25 °C value-critical for ADC reference accuracy and must be compensated in high-precision designs via calibration or TC-matched resistor networks.
Can BZX384-B5V6-Q replace older BZX384-B5V6 without redesign?
Yes-BZX384-B5V6-Q is a direct drop-in replacement for BZX384-B5V6, sharing identical electrical specs, SOD323 package, pinout, and marking (L1). The "-Q" suffix denotes AEC-Q101 qualification; all other parameters match, enabling seamless upgrade in automotive production.
What is the recommended series resistor for 12 V automotive line clamping?
For 12 V nominal supply with 250 mA max fault current, a 27 Ω/0.5 W resistor limits peak Zener current to 237 mA (12 V − 5.6 V ÷ 27 Ω), staying within 250 mA absolute max and ensuring 300 mW dissipation is not exceeded during sustained overvoltage events.
BZX384-B5V6-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):
- 5.6 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 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-B5V6-QX FAQ
1.How can I place an order for BZX384-B5V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B5V6-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-B5V6-QX reliable?
The price and inventory of BZX384-B5V6-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-B5V6-QX is usually 5 days.
3.What payment methods are accepted for BZX384-B5V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B5V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B5V6-QX?
BZX384-B5V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B5V6-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-B5V6-QX?
For technical support, including BZX384-B5V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B5V6-QX requirements.
6.How does Aetrix verify that BZX384-B5V6-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-B5V6-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-B5V6-QX meets industry standards.
7.What is the process for return or replacement of BZX384-B5V6-QX?
All BZX384-B5V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B5V6-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-B5V6-QX part is unused and in its original packaging.
Return procedure for BZX384-B5V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-B5V6-QX Tags
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