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Nexperia USA Inc. BZX384-A13-QX
- Part No.:
- BZX384-A13-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-A13-QX.pdf
- Description:
- DIODE ZENER 13V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,738
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Product details
Overview
BZX384-A13-QX from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 13 V nominal breakdown voltage at 5 mA test current, 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-A13-QX datasheet, BZX384-A13-QX pinout, BZX384-A13-QX application, or BZX384-A13-QX equivalent, key selection criteria include its 13.0 V ±1 % Zener voltage tolerance, 170 Ω max differential resistance at IZ = 5 mA, 30 μA max reverse leakage at VR = 10.4 V, -0.1 mV/K temperature coefficient, and AEC-Q101 qualification status.
Technical Context
This device operates as a two-terminal silicon Zener diode with sharp reverse-breakdown characteristics, designed for precision voltage regulation in low-current (<250 mA forward, ≤40 W non-repetitive surge) applications. Its junction temperature range spans –65 °C to +150 °C, and thermal resistance from junction to ambient is 415 K/W on standard FR4 PCB.
The BZX384-A13-QX exhibits a typical Zener voltage of 12.87–13.13 V at IZ = 5 mA, with differential resistance ≤170 Ω and reverse current ≤30 μA at VR = 10.4 V. Its temperature coefficient is specified as –0.1 mV/K (min) to +0.1 mV/K (max) across operating current and temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.87 V to 13.13 V at IZ = 5 mA - defines precise regulation point with ±1 % tolerance |
| Differential Resistance (rdiff) | ≤170 Ω at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Reverse Current (IR) | ≤30 μA at VR = 10.4 V - ensures low standby power loss in clamping configurations |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 μs - supports transient overvoltage suppression without failure |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - enables predictable forward conduction in dual-direction protection schemes |
| Junction Temperature (Tj) | –65 °C to +150 °C - enables operation in under-hood automotive environments |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity-sensitive terminal for reverse-bias operation |
| 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, HTRB, and ESD testing |
| ±1 % Zener voltage tolerance | Enables tight reference accuracy without post-production trimming in voltage-sense circuits |
| Low differential resistance (≤170 Ω) | Minimizes output voltage shift under varying load currents in feedback or bias networks |
| 40 W non-repetitive surge capability | Withstands ISO 7637-2 pulse 1/2a/3a transients in 12 V automotive systems |
| SOD323 footprint compatibility | Supports high-density PCB layouts with industry-standard 1.35 mm × 0.85 mm land pattern |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Providing stable 13 V reference for microcontroller ADC input scaling in door module ECUs. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing fixed analog reference point. Use Value: Maintains <±0.13 V error across temperature and supply variation, enabling accurate battery voltage monitoring. |
Use Scenario: Clamping amplifier output to prevent overvoltage damage in 4–20 mA transmitter front-end. IC Role / Device Role / Timing Role: Precision shunt regulator limiting signal swing to safe levels. Use Value: Limits excursion to ≤13.13 V with ≤170 Ω dynamic impedance, preserving op-amp linearity and protecting downstream inputs. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Biasing |
|
Use Scenario: Setting TL431 reference voltage in isolated flyback converter secondary-side regulation loop. IC Role / Device Role / Timing Role: Stable voltage reference source for optocoupler feedback network. Use Value: Delivers 13.0 V ±0.13 V reference with <30 μA leakage, minimizing feedback error and improving load regulation. |
Use Scenario: Generating precise bias voltage for photodiode transimpedance amplifier in pulse oximeter analog front-end. IC Role / Device Role / Timing Role: Low-noise Zener reference for critical analog signal chain. Use Value: Achieves <0.1 mV/K tempco and <170 Ω rdiff, reducing drift-induced measurement offset in clinical-grade readings. |
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-B13-Q | ±2 % tolerance (12.7–13.3 V), same package and Ptot | Lower cost; acceptable where tighter regulation not required | Select when ±2 % VZ meets system accuracy budget and cost optimization is prioritized |
| MMSZ4688T1G | ±5 % tolerance (12.35–13.65 V), SOD-123 package, 500 mW Ptot | Higher power rating but looser tolerance and larger footprint | Choose only if higher continuous dissipation is needed and board space allows SOD-123 |
Compared with BZX384-B13-Q and MMSZ4688T1G, the BZX384-A13-QX delivers superior voltage accuracy (±1 %) and automotive qualification-critical for safety-related biasing-while maintaining minimal footprint and thermal resistance in compact designs.
Availability
BZX384-A13-QX is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, medical diagnostic biasing, and consumer power adapter feedback requiring stable component supply and AEC-Q101 compliance.
Supply support for BZX384-A13-QX 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 logic, discrete, and MOSFET devices optimized for efficiency, reliability, and miniaturization in automotive and industrial markets.
The BZX384-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for precision voltage reference and transient protection in space-constrained, thermally demanding environments.
FAQ
What is the maximum continuous reverse current the BZX384-A13-QX can sustain?
The device has no specified maximum continuous reverse current; its operation is defined by power dissipation limits. At 13 V, sustained reverse current must remain below ~23 mA to stay within the 300 mW Ptot limit at Tamb = 25 °C. Derating applies above 25 °C per the 415 K/W thermal resistance.
Does the BZX384-A13-QX support bidirectional ESD protection?
No-it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, discrete TVS diodes like PESD5V0S1BA or dedicated ESD arrays are required; this part conducts only in reverse breakdown and forward conduction (VF ≈ 0.9 V).
How does the temperature coefficient affect regulation accuracy over –40 °C to +125 °C?
With a specified SZ of –0.1 to +0.1 mV/K, the Zener voltage drift is ≤2.5 V over that 165 K range-i.e., ±0.0019 V/°C × 165 K ≈ ±0.31 V total shift. This yields ~±2.4 % full-range drift, which is mitigated in practice by using it at fixed IZ and within its optimal current window (5–20 mA).
Can BZX384-A13-QX replace older BZX384-A13 variants without layout changes?
Yes-the "-QX" suffix denotes the same SOD323 package, identical pinning, and identical electrical specifications as earlier BZX384-A13-Q parts. The "X" indicates tape-and-reel packaging per EIA-481; no PCB footprint or schematic modification is required for drop-in replacement.
BZX384-A13-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):
- 13 V
- Tolerance:
- ±1%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-A13-QX FAQ
1.How can I place an order for BZX384-A13-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-A13-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-A13-QX reliable?
The price and inventory of BZX384-A13-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-A13-QX is usually 5 days.
3.What payment methods are accepted for BZX384-A13-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-A13-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-A13-QX?
BZX384-A13-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-A13-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-A13-QX?
For technical support, including BZX384-A13-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-A13-QX requirements.
6.How does Aetrix verify that BZX384-A13-QX is sourced from the original manufacturer or authorized distributors?
All BZX384-A13-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-A13-QX meets industry standards.
7.What is the process for return or replacement of BZX384-A13-QX?
All BZX384-A13-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-A13-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-A13-QX part is unused and in its original packaging.
Return procedure for BZX384-A13-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-A13-QX Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
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MMSZ5231B-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAZ12-13-F
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