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Nexperia USA Inc. BZX384-A7V5-QX
- Part No.:
- BZX384-A7V5-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-A7V5-QX.pdf
- Description:
- DIODE ZENER 7.5V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:4,893
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Product details
Overview
BZX384-A7V5-Q from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 7.5 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and qualified to AEC-Q101 for automotive voltage reference and overvoltage protection circuits.
For engineers reviewing the BZX384-A7V5-Q datasheet, BZX384-A7V5-Q pinout, BZX384-A7V5-Q application, or BZX384-A7V5-Q equivalent, this device serves as a precision low-power shunt regulator in ECU power rails, sensor biasing networks, and ADC reference stabilization where tight voltage tolerance and automotive-grade reliability are required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable 7.5 V reference across its terminals under regulated current conditions. Its differential resistance of ≤80 Ω at IZ = 5 mA ensures minimal voltage drift with load variation, while the temperature coefficient of +2.5 mV/K (typical) enables predictable thermal behavior in ambient ranges from −65 °C to +150 °C.
Designed for surface-mount use on FR4 PCBs with standard SOD323 footprint, it supports non-repetitive peak reverse power dissipation up to 40 W (100 μs pulse), and exhibits reverse current <1 μA at VR = 5.25 V - critical for low-leakage biasing in battery-powered modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 7.42 V to 7.58 V at IZ = 5 mA - defines precise regulation window for 7.5 V reference applications |
| Tolerance | ±1 % - enables high-accuracy voltage clamping without post-production trimming |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Differential Resistance (rdif) | ≤80 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | <1 μA at VR = 5.25 V - ensures negligible leakage in standby or low-power sensor circuits |
| Non-repetitive Peak Power (PZSM) | 40 W (100 μs pulse) - supports transient overvoltage suppression in automotive surge events |
| Junction Temperature (Tj) | −65 °C to +150 °C - validated operating range for under-hood automotive electronics |
Pinout & Package
Package: SOD323 (SC-76), 2-terminal 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; reverse-biased terminal where 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 including temperature cycling, humidity, and mechanical shock per discrete semiconductor stress test standard |
| ±1 % voltage tolerance | Reduces need for external calibration in precision reference designs such as engine control sensor interfaces |
| Low differential resistance (≤80 Ω) | Minimizes output voltage shift under varying load currents in feedback loops and voltage monitor circuits |
| SOD323 footprint compatibility | Enables high-density PCB layout with standardized reflow/wave soldering profiles per Nexperia's recommended land patterns |
| 150 °C max junction temperature | Supports operation in high-temperature environments like transmission control units and powertrain ECUs |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 7.5 V reference for analog front-end circuitry in diesel ECU power management. IC Role / Device Role / Timing Role: Shunt voltage regulator providing stable bias for op-amps and ADC references. Use Value: Maintains ±1 % accuracy over −40 °C to +125 °C ambient, ensuring consistent sensor measurement integrity. |
Use Scenario: Biasing thermistor networks and bridge sensors in factory automation pressure transmitters. IC Role / Device Role / Timing Role: Precision voltage clamp establishing known reference point for ratiometric measurements. Use Value: Low 1 μA leakage at 70 % VZ prevents loading errors in high-impedance sensor interfaces. |
| USB-C Power Delivery Protection | Medical Portable Device Voltage Monitoring |
Use Scenario: Overvoltage clamp on 5 V auxiliary rail in USB-C PD controller subsystems. IC Role / Device Role / Timing Role: Fast-acting shunt protector limiting transient excursions above safe threshold. Use Value: 40 W non-repetitive peak power rating absorbs 100 μs surges without degradation. |
Use Scenario: Low-power voltage supervisor in battery-operated glucose meters requiring long shelf life. IC Role / Device Role / Timing Role: Standby-mode reference generator enabling accurate battery voltage detection. Use Value: 300 mW Ptot and −65 °C to +150 °C Tstg support wide storage and operational temperature compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B7V5-Q | ±2 % tolerance (7.35 V–7.65 V), higher rdif (≤150 Ω) | Acceptable where tighter regulation not required; lower cost tier | Select when design tolerates wider voltage spread and reduced thermal stability |
| MMSZ5235B-TP | ±5 % tolerance (7.13 V–7.88 V), SOD-123 package, 500 mW Ptot | Larger footprint, higher power but looser accuracy; not AEC-Q101 qualified | Choose only for non-automotive industrial use needing higher continuous dissipation |
Compared with BZX384-B7V5-Q and MMSZ5235B-TP, the BZX384-A7V5-Q delivers superior voltage accuracy and automotive qualification at the expense of slightly lower surge power margin than the MMSZ5235B-TP, making it optimal for safety-critical 7.5 V reference nodes.
Availability
BZX384-A7V5-Q is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor signal conditioning, USB-C power delivery protection, and medical portable device voltage monitoring requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX384-A7V5-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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
The BZX384-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for precision voltage regulation and transient protection in harsh-environment electronic control systems.
FAQ
What is the maximum continuous forward current for BZX384-A7V5-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 is reverse-biased. Forward voltage is 0.9 V at 10 mA pulse (tp ≤ 100 μs), and sustained forward bias risks thermal runaway due to lack of current limiting.
Can BZX384-A7V5-Q be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and parameter spread; paralleling causes current hogging and thermal instability. For higher power, use a single higher-rated device or active regulation with a transistor buffer stage.
How does the +2.5 mV/K temperature coefficient affect regulation accuracy?
At IZ = 5 mA, the coefficient means VZ increases by ~2.5 mV per °C rise in junction temperature. Over a 100 °C range (−40 °C to +60 °C ambient), this contributes ±250 mV drift - compensated in precision designs via circuit topology or selection of lower-coefficient variants like BZX384-A6V2-Q (+0.4 mV/K).
Is the SOD323 package compatible with standard reflow profiles?
Yes - Nexperia specifies JEDEC J-STD-020-compliant reflow profiles for SOD323. Recommended peak temperature is 260 °C (max), with 60–150 s above 217 °C for lead-free process. Land pattern dimensions and solder paste volume must follow Figure 12 in the datasheet to ensure void-free joints and mechanical reliability.
BZX384-A7V5-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):
- 7.5 V
- Tolerance:
- ±1%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-A7V5-QX FAQ
1.How can I place an order for BZX384-A7V5-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-A7V5-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-A7V5-QX reliable?
The price and inventory of BZX384-A7V5-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-A7V5-QX is usually 5 days.
3.What payment methods are accepted for BZX384-A7V5-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-A7V5-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-A7V5-QX?
BZX384-A7V5-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-A7V5-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-A7V5-QX?
For technical support, including BZX384-A7V5-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-A7V5-QX requirements.
6.How does Aetrix verify that BZX384-A7V5-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-A7V5-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-A7V5-QX meets industry standards.
7.What is the process for return or replacement of BZX384-A7V5-QX?
All BZX384-A7V5-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-A7V5-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-A7V5-QX part is unused and in its original packaging.
Return procedure for BZX384-A7V5-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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