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Nexperia USA Inc. BZX384-C3V0,115
- Part No.:
- BZX384-C3V0,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-C3V0,115.pdf
- Description:
- DIODE ZENER 3V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:12,164
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Product details
Overview
BZX384-C3V0,115 from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 3.0 V nominal breakdown voltage at 5 mA, 300 mW total power dissipation, and 40 W non-repetitive peak reverse power. It serves as a precision low-power voltage reference in biasing, overvoltage protection, and signal-level clamping circuits for consumer and industrial power management.
For engineers reviewing the BZX384-C3V0,115 datasheet, BZX384-C3V0,115 pinout, BZX384-C3V0,115 application, or BZX384-C3V0,115 equivalent, key selection criteria include its 2.8 V to 3.2 V breakdown range at IZ = 5 mA, 95 Ω max differential resistance, 10 μA reverse current at VR = 1 V, -3.5 to 0.0 mV/K temperature coefficient, and thermal resistance of 415 K/W junction-to-ambient.
Technical Context
This Zener diode operates in reverse-biased avalanche mode with a specified nominal Zener voltage of 3.0 V at test current IZ = 5 mA. Its ±5 % tolerance (BZX384-C series) and low 95 Ω typical dynamic impedance enable stable regulation under light-load conditions.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it supports pulse operation up to 40 W for tp ≤ 100 μs and maintains junction temperatures up to 150 °C. The cathode-anode polarity is marked by a bar on the SOD323 body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.8 V to 3.2 V at IZ = 5 mA - defines regulation band for low-voltage reference stability |
| Differential Resistance (rdif) | ≤95 Ω - ensures minimal output voltage variation under changing load current |
| Reverse Current (IR) | ≤10 μA at VR = 1 V - guarantees low leakage during standby or pre-breakdown operation |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - sets continuous DC power limit on standard PCB layout |
| Peak Pulse Power (PZSM) | 40 W for tp ≤ 100 μs - enables transient overvoltage suppression without failure |
| Temperature Coefficient (SZ) | -3.5 to 0.0 mV/K - indicates moderate negative-to-neutral drift across operating temperature range |
| Junction-to-Ambient Rth | 415 K/W - determines steady-state temperature rise above ambient at full power |
Pinout & Package
The BZX384-C3V0,115 is housed in a SOD323 (SC-76) plastic surface-mount package measuring 1.8 mm × 1.35 mm × 0.95 mm, with gull-wing leads and cathode-bar marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to higher-potential node in reverse-bias configuration; marked by bar on package |
| 2 | Anode (A) | Connected to lower-potential node (typically ground or return path) during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not critical |
| 300 mW continuous power rating | Supports regulation in low-current analog and digital supply rails without heatsinking |
| SOD323 compact footprint | Reduces PCB area by >50 % vs. DO-35 or SOD123, enabling high-density layouts |
| 40 W non-repetitive surge capability | Provides robust ESD and transient immunity per IEC 61000-4-2 Level 4 (8 kV contact) |
| 150 °C maximum junction temperature | Allows reliable operation in enclosed or thermally constrained industrial environments |
Applications
| USB Port Overvoltage Clamp | Microcontroller Reset Circuit Reference |
|---|---|
Use Scenario: Clamps induced transients on USB VBUS line during hot-plug or ESD events. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator to clamp voltage to safe level below IC absolute maximum ratings. Use Value: Limits VBUS spikes to ≤3.2 V, protecting downstream 3.3 V logic from damage while drawing <10 μA leakage at normal operation. | Use Scenario: Provides stable threshold voltage for RC-based reset generator timing network. IC Role / Device Role / Timing Role: Precision voltage reference setting trip point for reset assertion/deassertion. Use Value: Delivers 3.0 V ±5 % reference with <95 Ω impedance, ensuring consistent reset timing across temperature and supply variance. |
| Low-Power Sensor Bias Supply | ADC Input Signal Limiter |
Use Scenario: Generates stable 3.0 V bias for analog sensor front-end circuitry in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Low-power Zener shunt regulator supplying excitation voltage to resistive or capacitive sensors. Use Value: Maintains regulation within ±5 % across 10 μA–5 mA load range, minimizing sensor offset drift and extending battery life. | Use Scenario: Prevents ADC input overload by clipping analog signals exceeding 3.2 V before sampling. IC Role / Device Role / Timing Role: Passive signal limiter placed ahead of SAR or sigma-delta ADC input stage. Use Value: Clamps fast transients with 40 W pulse handling, preserving ADC integrity without adding active components or propagation delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | 3.3 V nominal, ±5 %, SOT-23 package, 350 mW Ptot | Higher Zener voltage and larger footprint; requires different PCB land pattern | Select when 3.3 V regulation is acceptable and board space allows SOT-23 |
| BZX384-B3V0,115 | 3.0 V nominal, ±2 % tolerance, same SOD323 package and pinout | Tighter voltage tolerance improves reference accuracy but increases cost | Choose for improved regulation stability in precision analog sensing or calibration circuits |
Compared with BZX384-C3V0,115, MMBZ5226BS-7-F offers higher power and voltage but incompatible packaging, while BZX384-B3V0,115 delivers tighter tolerance in identical form factor-enabling drop-in accuracy upgrade without layout change.
Availability
BZX384-C3V0,115 is available at Aetrix Electronics and suitable for USB protection, microcontroller reset generation, low-power sensor biasing, and ADC input limiting requiring stable component supply and long-term obsolescence management.
Supply support for BZX384-C3V0,115 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, reliability, and miniaturization.
The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered for low-power voltage reference and clamping in space-constrained consumer, computing, and industrial applications.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZX384-C3V0,115 has a nominal Zener voltage of 3.0 V at IZ = 5 mA, with guaranteed breakdown occurring between 2.8 V and 3.2 V. It is not rated for sustained reverse voltage above 3.2 V; operation beyond this risks uncontrolled conduction or thermal runaway unless current-limited.
Can this Zener diode be used in parallel for higher power handling?
No-parallel connection of Zener diodes is not recommended due to mismatched breakdown voltages and thermal runaway risk. Each BZX384-C3V0,115 must be individually current-limited; for higher power, select a single device with appropriate Ptot rating or implement active regulation.
Is the SOD323 package compatible with standard reflow soldering profiles?
Yes-the SOD323 package is qualified for lead-free reflow soldering per JEDEC J-STD-020. Nexperia specifies a maximum peak temperature of 260 °C for 10 seconds, with ramp rates and soak profiles aligned to IPC-7095 guidelines for small-outline diodes.
Does this part meet automotive qualification standards?
No-BZX384-C3V0,115 is not automotive-qualified. Nexperia explicitly states in the datasheet that this series is non-automotive; for AEC-Q101-compliant alternatives, refer to the BZX384-Q series or contact Nexperia for qualified variants.
BZX384-C3V0,115 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):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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-C3V0,115 FAQ
1.How can I place an order for BZX384-C3V0,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-C3V0,115 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-C3V0,115 reliable?
The price and inventory of BZX384-C3V0,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-C3V0,115 is usually 5 days.
3.What payment methods are accepted for BZX384-C3V0,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-C3V0,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-C3V0,115?
BZX384-C3V0,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-C3V0,115 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-C3V0,115?
For technical support, including BZX384-C3V0,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-C3V0,115 requirements.
6.How does Aetrix verify that BZX384-C3V0,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-C3V0,115 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-C3V0,115 meets industry standards.
7.What is the process for return or replacement of BZX384-C3V0,115?
All BZX384-C3V0,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-C3V0,115, 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-C3V0,115 part is unused and in its original packaging.
Return procedure for BZX384-C3V0,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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