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Nexperia USA Inc. BZX384-C10,115
- Part No.:
- BZX384-C10,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C10,115.pdf
- Description:
- DIODE ZENER 10V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:821
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Product details
Overview
BZX384-C10,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 10 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and 90 Ω maximum differential resistance. It serves as a precision low-power reference or clamp in power supply feedback loops, sensor biasing, and overvoltage protection circuits.
For engineers reviewing the BZX384-C10,115 datasheet, BZX384-C10,115 pinout, BZX384-C10,115 application, or BZX384-C10,115 equivalent, key selection criteria include its ±5 % VZ tolerance, 10 V regulation point, SOD323 thermal resistance (Rth(j-a) = 415 K/W), non-repetitive peak reverse power (40 W), and cathode/anode polarity marking.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a specified 10 V working voltage at IZ = 5 mA, exhibiting a temperature coefficient of +4.5 mV/K and reverse current ≤20 μA at VR = 7.6 V. Its differential resistance remains ≤90 Ω under regulation conditions, ensuring stable voltage reference performance across load variations.
The device uses silicon planar technology with metallization optimized for low parasitic inductance and consistent junction characteristics. Thermal design relies on FR4 PCB mounting with single-sided copper, where junction-to-ambient thermal resistance is 415 K/W and junction-to-solder-point resistance is 110 K/W - critical for transient surge handling and steady-state power derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 10 V at IZ = 5 mA - defines primary regulation setpoint for feedback or clamping |
| Tolerance | ±5 % - specifies allowable deviation in actual breakdown voltage under production conditions |
| Ptot | 300 mW at Tamb ≤ 25 °C - sets maximum continuous DC power dissipation on standard FR4 PCB |
| rdif | ≤90 Ω - determines output impedance and regulation error under varying load current |
| IR | ≤20 μA at VR = 7.6 V - quantifies leakage before breakdown, critical for low-power standby circuits |
| SZ | +4.5 mV/K - indicates positive temperature drift, requiring compensation in high-stability references |
| PZSM | 40 W (tp = 100 μs) - defines surge energy handling capability during transient overvoltage events |
Pinout & Package
Package: SOD323 (SC-76), surface-mount plastic case 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) | Negative terminal in reverse-bias operation; marked by bar on package; connects to regulated node or feedback path |
| 2 | Anode (A) | Positive terminal in reverse-bias operation; typically tied to ground or lower potential reference point |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD packaging | SOD323 footprint enables high-density PCB layouts and automated assembly compatibility |
| Controlled Zener voltage tolerance | ±5 % ensures predictable regulation within cost-sensitive consumer and industrial applications |
| High surge robustness | 40 W non-repetitive peak reverse power supports transient suppression without failure |
| Stable thermal performance | Rth(j-sp) = 110 K/W allows effective heat transfer through cathode solder joint during pulsed operation |
| Low leakage current | ≤20 μA at 7.6 V enables use in battery-powered systems with strict quiescent current budgets |
Applications
| Power Supply Feedback Regulation | Sensor Bias Voltage Reference |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulators or switching converter feedback networks. IC Role / Device Role / Timing Role: Zener diode provides precise 10 V reference to optocoupler input or error amplifier divider network. Use Value: Enables ±5 % output accuracy with minimal external components and no active circuitry. |
Use Scenario: Supplying stable excitation voltage to resistive sensors (e.g., RTDs, strain gauges). IC Role / Device Role / Timing Role: Acts as passive voltage source delivering fixed 10 V bias independent of supply rail fluctuations. Use Value: Reduces measurement drift caused by supply variation, improving sensor linearity and repeatability. |
| Overvoltage Clamp Protection | Logic-Level Signal Conditioning |
Use Scenario: Protecting microcontroller I/O pins from ESD or inductive kickback transients. IC Role / Device Role / Timing Role: Clamps voltage to ~10.5 V (VZ + VF) during overvoltage events, diverting surge current to ground. Use Value: Limits stress on downstream CMOS inputs while maintaining fast response (<100 ns) due to low capacitance (≤200 pF). |
Use Scenario: Level-shifting or limiting analog signals entering ADC inputs or comparator stages. IC Role / Device Role / Timing Role: Clips signal amplitude to prevent saturation or damage in 3.3 V or 5 V logic domains. Use Value: Provides deterministic clipping threshold with <90 Ω dynamic impedance, minimizing distortion in small-signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | 10 V nominal, ±5 %, SOT-23 package, 225 mW Ptot, 17 Ω rdif | Lower power rating and tighter rdif, but larger footprint and higher thermal resistance (Rth(j-a) ≈ 450 K/W) | Select when lower dynamic impedance is prioritized over board space and surge handling. |
| BZX84-C10 | 10 V nominal, ±5 %, SOT-23 package, 300 mW Ptot, 20 Ω rdif, automotive-qualified (-Q variants available) | Superior regulation stability (lower rdif) and AEC-Q200 qualification support, but incompatible SOT-23 footprint | Choose for automotive or high-reliability designs where tighter regulation and qualification outweigh package change. |
Compared with BZX384-C10,115, MMBZ5240BLT1G trades surge robustness (40 W → not specified) and thermal efficiency for lower impedance, while BZX84-C10 delivers better regulation precision and qualification at the cost of layout redesign and higher cost.
Availability
BZX384-C10,115 is available at Aetrix Electronics and suitable for power supply feedback regulation, sensor biasing, overvoltage clamp protection, and logic-level signal conditioning requiring stable component supply and consistent ±5 % Zener tolerance.
Supply support for BZX384-C10,115 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 advanced packaging and automotive-grade qualification.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered for cost-effective, space-constrained voltage reference and protection functions in consumer, industrial, and computing applications.
FAQ
What is the maximum continuous forward current for BZX384-C10,115?
The device is not rated for continuous forward conduction; its absolute maximum forward current is 250 mA per limiting values table, but it is intended for reverse-bias Zener operation only. Forward voltage is 0.9 V at 10 mA pulse test (tp ≤ 100 μs), and sustained forward bias risks thermal runaway or parameter shift.
Can BZX384-C10,115 be used in place of a 10 V TL431 shunt regulator?
No - the BZX384-C10,115 is a passive two-terminal Zener diode with fixed 10 V breakdown and no adjustable reference or sink capability. The TL431 is an active three-terminal programmable shunt regulator offering adjustable output (2.5–36 V), lower dynamic impedance (~0.2 Ω), and built-in error amplifier functionality.
How does ambient temperature affect the 10 V regulation accuracy?
At IZ = 5 mA, the temperature coefficient is +4.5 mV/K, meaning regulation voltage increases by ~4.5 mV per °C rise above 25 °C. Over –65 °C to +150 °C operating range, this yields up to ±0.56 V drift, requiring compensation in precision applications.
Is the SOD323 package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies a reflow footprint (Fig. 12) with 0.6 mm solder land width and 0.5 mm spacing. The device supports JEDEC J-STD-020D-compliant profiles, including peak temperatures up to 260 °C for ≤10 s, provided thermal mass and pad design follow recommended layout guidelines.
BZX384-C10,115 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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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-C10,115 FAQ
1.How can I place an order for BZX384-C10,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C10,115 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-C10,115 reliable?
The price and inventory of BZX384-C10,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C10,115 is usually 5 days.
3.What payment methods are accepted for BZX384-C10,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C10,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C10,115?
BZX384-C10,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C10,115 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-C10,115?
For technical support, including BZX384-C10,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C10,115 requirements.
6.How does Aetrix verify that BZX384-C10,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-C10,115 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-C10,115 meets industry standards.
7.What is the process for return or replacement of BZX384-C10,115?
All BZX384-C10,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C10,115, 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-C10,115 part is unused and in its original packaging.
Return procedure for BZX384-C10,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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