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Nexperia USA Inc. BZX384-C16-QF
- Part No.:
- BZX384-C16-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C16-QF.pdf
- Description:
- DIODE ZENER 16.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,227
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Product details
Overview
BZX384-C16-QF from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 16 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and qualified to AEC-Q101 for automotive power rail stabilization and overvoltage protection.
For engineers reviewing the BZX384-C16-QF datasheet, BZX384-C16-QF pinout, BZX384-C16-QF application, or BZX384-C16-QF equivalent, this device serves as a low-power precision reference in ECU voltage monitoring, sensor biasing, and I/O clamp circuits where stable 16 V regulation under transient conditions is required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a typical differential resistance of 200 Ω at 5 mA and a temperature coefficient of +11.2 mV/K, enabling predictable voltage drift across automotive ambient ranges. Its non-repetitive peak reverse power dissipation is rated at 40 W for 100 μs pulses.
The device exhibits ≤1.1 V forward voltage at 100 mA and ≤0.9 V at 10 mA, supporting bidirectional clamping and low-loss forward conduction during fault events. Reverse leakage remains ≤40 μA at 12.8 V, ensuring minimal quiescent current in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines regulation window for 16 V nominal rail |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - limits continuous thermal load on FR4 PCB |
| Differential Resistance (rdif) | 200 Ω max at IZ = 5 mA - determines output impedance and load regulation error |
| Reverse Current (IR) | ≤40 μA at VR = 12.8 V - ensures low standby power in voltage-sense circuits |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 μs - supports transient surge suppression per ISO 7637-2 |
| Thermal Resistance (Rth(j-a)) | 415 K/W - dictates junction temperature rise under sustained DC load |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads, 1.35 mm × 0.85 mm body, 0.45 mm lead pitch, and cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker aligns with PCB silkscreen bar |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % voltage tolerance | Enables cost-optimized selection for non-critical 16 V references without trimming |
| AEC-Q101 qualification | Validated for automotive under-hood environments including 150 °C junction operation |
| 40 W surge rating | Withstands ISO 7637-2 Pulse 1/2a/5a transients without degradation |
| Low 200 Ω dynamic impedance | Maintains <±2 % output variation across 1–10 mA load changes |
| SOD323 footprint | Compatible with standard reflow profiles and automated placement for high-volume ECUs |
Applications
| Automotive ECU Power Monitoring | Industrial Sensor Biasing |
|---|---|
|
Use Scenario: Monitoring 12 V battery-derived supply rails in engine control units to detect undervoltage/overvoltage faults. IC Role / Device Role / Timing Role: Zener reference element in comparator input stage, providing stable 16 V threshold against which sensed rail is compared. Use Value: Enables detection of >15.3 V overvoltage events with ±0.4 V hysteresis margin before system shutdown. |
Use Scenario: Providing precise bias voltage to analog pressure or temperature sensors in factory automation modules. IC Role / Device Role / Timing Role: Low-drift voltage reference source for sensor excitation, replacing higher-cost shunt references. Use Value: Delivers 16 V ±0.9 V stability over −40 °C to +125 °C, reducing sensor offset error by 3× vs. unregulated supplies. |
| USB-C Port Overvoltage Clamp | IoT Node Battery Protection |
|
Use Scenario: Clamping transient surges on USB-C VBUS lines in automotive infotainment head units. IC Role / Device Role / Timing Role: Fast-acting shunt protector that clamps spikes above 17.1 V to prevent downstream PMIC damage. Use Value: Absorbs 40 W for 100 μs without failure, meeting IEC 61000-4-5 Level 3 surge immunity requirements. |
Use Scenario: Protecting lithium-ion battery management ICs from overcharge during solar-charged IoT edge nodes. IC Role / Device Role / Timing Role: Secondary voltage limiter activated when primary charger fails, holding cell voltage ≤17.1 V. Use Value: Prevents electrolyte decomposition by limiting peak voltage to within 200 mV of safe cutoff threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B16-Q | ±2 % tolerance (15.7–16.3 V), lower rdif (150 Ω), same package and surge rating | Better regulation accuracy for feedback loops requiring tighter VZ stability | Select when 16 V reference must hold ±0.3 V over temperature and current variation |
| MMSZ5245B-TP | ±5 % tolerance (15.2–16.8 V), 500 mW Ptot, SOD-123 package, no AEC-Q101 qualification | Higher power handling but lacks automotive reliability validation and smaller footprint | Select for industrial non-automotive designs needing higher continuous dissipation without qualification overhead |
Compared with BZX384-B16-Q, the C16-QF trades 0.4 V tighter tolerance for broader process yield and lower unit cost; versus MMSZ5245B-TP, it delivers AEC-Q101 assurance and SOD323 space savings at the expense of 200 mW lower steady-state rating.
Availability
BZX384-C16-QF is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor modules, USB-C surge protection, and IoT battery management systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZX384-C16-QF 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 advanced packaging.
The BZX384-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage regulation and transient suppression in automotive power domains and harsh-environment industrial controls.
FAQ
What is the maximum continuous reverse current this diode can sustain at 16 V?
The BZX384-C16-QF is not rated for continuous reverse conduction at its breakdown voltage. At 16 V, it operates in regulation mode with current determined by external series resistance. The absolute maximum average reverse current is limited by Ptot = 300 mW, yielding ~18.75 mA at 16 V - exceeding this risks thermal runaway and permanent degradation.
Does the marking 'DE' on the device body correspond to BZX384-C16-QF?
Yes - per Table 4 of the datasheet, the marking code 'DE' uniquely identifies the BZX384-C16-QF variant within the BZX384-Q series, confirming ±5 % tolerance, 16 V nominal Zener voltage, and SOD323 packaging.
Can this diode be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients and parameter spread; paralleling BZX384-C16-QF units causes current hogging, thermal instability, and premature failure. For higher power, use a single higher-rated device or active regulation instead.
Is the cathode terminal electrically isolated from the package body?
Yes - the SOD323 package is fully plastic-molded with no exposed metal heat slug. Both anode and cathode terminals are insulated from the outer case, eliminating need for isolation pads in PCB layout and enabling direct mounting on grounded copper pours.
BZX384-C16-QF 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):
- 16.2 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 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-C16-QF FAQ
1.How can I place an order for BZX384-C16-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C16-QF 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-C16-QF reliable?
The price and inventory of BZX384-C16-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C16-QF is usually 5 days.
3.What payment methods are accepted for BZX384-C16-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C16-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C16-QF?
BZX384-C16-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C16-QF 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-C16-QF?
For technical support, including BZX384-C16-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C16-QF requirements.
6.How does Aetrix verify that BZX384-C16-QF is sourced from the original manufacturer or authorized distributors?
All BZX384-C16-QF 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-C16-QF meets industry standards.
7.What is the process for return or replacement of BZX384-C16-QF?
All BZX384-C16-QF units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C16-QF, 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-C16-QF part is unused and in its original packaging.
Return procedure for BZX384-C16-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C16-QF Tags
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MM5Z5V1ST1G
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