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Nexperia USA Inc. BZX384-C15F
- Part No.:
- BZX384-C15F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C15F.pdf
- Description:
- DIODE ZENER 14.7V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,517
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Product details
Overview
BZX384-C15F from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 15 V nominal breakdown voltage at 5 mA, with 300 mW total power dissipation and 200 Ω maximum differential resistance. It operates across –65 °C to +150 °C ambient and serves as a precision reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZX384-C15F datasheet, BZX384-C15F pinout, BZX384-C15F application, or BZX384-C15F equivalent, key selection criteria include its 15 V Zener voltage tolerance (±5 %), thermal resistance (Rth(j-a) = 415 K/W), non-repetitive peak reverse power (40 W), cathode/anode polarity marking, and compatibility with standard reflow soldering footprints for SOD323.
Technical Context
This device functions as a two-terminal silicon Zener diode operating in reverse-biased breakdown mode, delivering stable DC reference voltage under controlled current conditions. Its design targets low-power regulation where space-constrained SMD placement and predictable temperature coefficient (–0.05 mV/K typical at IZ = 5 mA) are critical.
The BZX384-C15F exhibits 75 Ω typical dynamic impedance at 5 mA and maintains ≤2 μA reverse leakage at 12 V, enabling reliable clamping in sensor bias networks and ADC reference stabilization. Its 150 °C maximum junction temperature supports operation in thermally demanding PCB layouts without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.8 V to 15.6 V at IZ = 5 mA - defines usable regulation window for 15 V nominal reference |
| Differential Resistance (rdif) | ≤200 Ω max at IZ = 5 mA - determines output voltage stability under load current variation |
| Total Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on FR4 PCB |
| Reverse Current (IR) | ≤2 μA at VR = 12 V - ensures minimal leakage in high-impedance bias networks |
| Non-repetitive Peak Reverse Power | 40 W for tp = 100 μs - enables transient overvoltage suppression without failure |
| Junction-to-Ambient Thermal Resistance | 415 K/W - dictates temperature rise per watt on standard single-sided FR4 layout |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - confirms low-loss forward conduction during polarity testing |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case with 2 leads; dimensions 1.8 mm × 1.35 mm × 0.95 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; accepts reverse bias current to maintain VZ |
| 2 | Anode (A) | Connected to ground or lower potential; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required, e.g., supply rail monitoring |
| 300 mW power rating | Supports continuous operation in compact 0805-class footprints without forced cooling or copper pour |
| SOD323 package | Reduces board area by >50 % vs. DO-35; compatible with standard pick-and-place and reflow processes |
| 150 °C max junction temperature | Permits use in automotive under-hood modules or industrial controllers without thermal derating above 25 °C |
| Cathode bar marking | Ensures unambiguous polarity identification during manual inspection and automated optical recognition (AOI) |
Applications
| Power Supply Rail Clamping | Sensor Bias Reference |
|---|---|
|
Use Scenario: Protecting microcontroller I/O pins from ESD-induced voltage spikes on 3.3 V or 5 V supply rails. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping transient energy into ground before it reaches sensitive logic inputs. Use Value: Limits peak rail voltage to ≤15.6 V during 40 W/100 μs surges, preventing latch-up in downstream ICs. |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in industrial process transmitters. IC Role / Device Role / Timing Role: Low-drift Zener reference establishing precise current source for RTD bridge excitation. Use Value: Delivers 15 V ±5 % with <2 μA leakage, minimizing self-heating error and maintaining <0.1 % measurement accuracy. |
| ADC Reference Stabilization | Low-Power Voltage Monitoring |
|
Use Scenario: Generating a clean 15 V reference for 12-bit SAR ADCs in battery-powered data loggers. IC Role / Device Role / Timing Role: Passive voltage reference replacing higher-current bandgap ICs to reduce quiescent power. Use Value: Maintains <200 Ω dynamic impedance at 5 mA, limiting reference voltage shift to <1 mV per 200 μA load change. |
Use Scenario: Detecting brown-out conditions in 12 V automotive accessory modules using comparator input thresholds. IC Role / Device Role / Timing Role: Precision Zener defining upper threshold voltage for undervoltage lockout (UVLO) circuitry. Use Value: Provides repeatable 13.8–15.6 V trip point with <0.05 mV/K tempco, ensuring UVLO activation within ±0.3 V over –40 °C to +85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245BS-7-F | 15 V ±5 %, 350 mW Ptot, SOT-23 package, 170 Ω rdif | Larger footprint; higher power allows greater surge margin but requires larger PCB area | Select when higher surge robustness (350 mW vs. 300 mW) outweighs size constraints |
| Vishay BZX384-B15 | 15 V ±2 %, same SOD323 package, 150 Ω rdif, tighter tolerance | Improved regulation accuracy at cost of higher unit price and reduced production yield tolerance band | Select when system-level calibration requires <±2 % VZ stability across temperature and life |
Compared with BZX384-C15F, MMBZ5245BS-7-F offers higher power headroom in a larger package, while BZX384-B15 delivers tighter voltage control at identical form factor-enabling trade-offs between cost, accuracy, and thermal margin in volume production.
Availability
BZX384-C15F is available at Aetrix Electronics and suitable for power supply clamping, sensor biasing, ADC reference stabilization, and low-power voltage monitoring requiring stable component supply across industrial, instrumentation, and consumer electronics programs.
Supply support for BZX384-C15F 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, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered specifically for space-constrained, low-power voltage regulation and protection in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous reverse current the BZX384-C15F can sustain at 25 °C?
The BZX384-C15F is rated for a maximum continuous forward current of 250 mA, but as a Zener diode, its continuous reverse (Zener) current is limited by power dissipation. At 25 °C ambient and 300 mW Ptot, the maximum sustainable Zener current is 20 mA (300 mW ÷ 15 V), assuming nominal VZ. Derating applies above 25 °C per Rth(j-a) = 415 K/W.
Does the BZX384-C15F have automotive qualification?
No. The BZX384-C15F is not automotive-qualified. Per Nexperia's revision history (Rev. 4, Jan 2023), the BZX384 series was explicitly changed to non-automotive qualification. Automotive-grade alternatives (e.g., BZX384-Q series) are available separately and undergo AEC-Q101 stress testing.
How is polarity identified on the BZX384-C15F package?
Polarity is indicated by a molded cathode bar on the top surface of the SOD323 package. Pin 1 (cathode) aligns with the bar end; Pin 2 (anode) is the opposite lead. This marking is visible under 10× magnification and verified in the official Nexperia package outline (Fig. 11) and pinning table.
Can the BZX384-C15F be used in series to achieve higher reference voltages?
Yes, but with caution. Series connection increases total dynamic impedance (sum of individual rdif) and thermal coupling effects. For BZX384-C15F, two units in series yield ~30 V nominal with ±5 % tolerance per device, resulting in up to ±10 % overall uncertainty. Temperature coefficients do not cancel and may compound drift.
BZX384-C15F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX384
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 14.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-C15F FAQ
1.How can I place an order for BZX384-C15F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C15F 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-C15F reliable?
The price and inventory of BZX384-C15F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C15F is usually 5 days.
3.What payment methods are accepted for BZX384-C15F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C15F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C15F?
BZX384-C15F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C15F 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-C15F?
For technical support, including BZX384-C15F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C15F requirements.
6.How does Aetrix verify that BZX384-C15F is sourced from the original manufacturer or authorized distributors?
All BZX384-C15F 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-C15F meets industry standards.
7.What is the process for return or replacement of BZX384-C15F?
All BZX384-C15F units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C15F, 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-C15F part is unused and in its original packaging.
Return procedure for BZX384-C15F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-C15F Tags
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