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Nexperia USA Inc. BZX384-B3V6,115
- Part No.:
- BZX384-B3V6,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B3V6,115.pdf
- Description:
- DIODE ZENER 3.6V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
BZX384-B3V6,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 3.6 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 reference or clamp in power supply feedback paths, microcontroller I/O protection, and analog sensor biasing circuits.
For engineers reviewing the BZX384-B3V6,115 datasheet, BZX384-B3V6,115 pinout, BZX384-B3V6,115 application, or BZX384-B3V6,115 equivalent, this page delivers verified electrical parameters, thermal behavior, cathode/anode terminal mapping, real-world use cases, and validated alternative parts with documented tolerance and temperature coefficient differences.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or input conditions. Its differential resistance of ≤90 Ω at 5 mA ensures minimal voltage shift with current changes, while the −3.5 mV/K temperature coefficient enables predictable drift compensation in ambient-varying environments.
Designed for surface-mount assembly on FR4 PCBs with single-sided copper, it relies on junction-to-ambient thermal resistance of 415 K/W and junction-to-solder-point resistance of 110 K/W to manage self-heating. The device sustains up to 250 mA forward current and withstands 40 W transient surges (100 μs, square wave) without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 3.53 V to 3.67 V at IZ = 5 mA - defines regulation window for low-voltage reference stability |
| Power Dissipation | 300 mW at Tamb ≤ 25 °C - sets continuous DC load limit on standard FR4 PCB |
| Differential Resistance | ≤90 Ω at IZ = 5 mA - determines output impedance and load regulation error |
| Reverse Current | ≤5 μA at VR = 1 V - ensures low leakage in standby or high-impedance bias networks |
| Temperature Coefficient | −3.5 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius for thermal design margining |
| Non-repetitive Peak Power | 40 W for tp = 100 μs - supports transient overvoltage clamping in ESD or surge events |
| Junction Temperature | 150 °C maximum - constrains maximum allowable power under derated ambient conditions |
Pinout & Package
The BZX384-B3V6,115 uses a 2-terminal SOD323 (SC-76) plastic surface-mount package with cathode marked by a bar on the body. Mounting follows standard reflow footprint per Figure 12 (0.5 mm pad width, 2.2 mm center-to-center).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated voltage node; marking bar identifies this terminal |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % voltage tolerance | Enables tighter regulation than ±5 % variants, reducing need for post-regulation trimming |
| Low differential resistance (≤90 Ω) | Minimizes output voltage variation under load current changes up to 5 mA |
| SOD323 footprint compatibility | Supports high-density PCB layouts with industry-standard 1.35 mm × 0.8 mm land pattern |
| 150 °C max junction temperature | Allows operation in industrial ambient environments up to +125 °C with appropriate derating |
| 40 W surge capability | Provides robustness against short-duration transients without requiring external TVS staging |
Applications
| Microcontroller I/O Protection | Low-Voltage Reference Source |
|---|---|
|
Use Scenario: Clamping 3.3 V GPIO lines against ESD or overvoltage events in embedded controllers. IC Role / Device Role / Timing Role: Zener acts as shunt voltage limiter, diverting excess current to ground before IC damage occurs. Use Value: 3.6 V breakdown ensures safe margin below 3.3 V rail while maintaining fast response to sub-100 ns transients. |
Use Scenario: Providing stable bias voltage for op-amp comparators or ADC reference dividers in battery-powered sensors. IC Role / Device Role / Timing Role: Functions as two-terminal passive voltage reference with predictable TC and low dynamic impedance. Use Value: −3.5 mV/K coefficient and ≤90 Ω rdif enable <10 mV drift over 0–70 °C, sufficient for 10-bit accuracy. |
| Power Supply Feedback Divider | Signal-Level Clamping |
|
Use Scenario: Setting precise output voltage in adjustable buck converter feedback networks using TL431 or similar controllers. IC Role / Device Role / Timing Role: Replaces one resistor in divider to inject known Zener voltage, improving regulation accuracy vs. resistor-only designs. Use Value: ±2 % tolerance reduces overall output error to ±1.5 % without calibration, lowering BOM count. |
Use Scenario: Limiting analog signal swing to protect ADC inputs or audio codec interfaces from overrange voltages. IC Role / Device Role / Timing Role: Acts as bidirectional clamp when paired with series resistor, limiting both positive and negative excursions. Use Value: 0.9 V forward drop at 10 mA allows symmetric clipping around ground with minimal forward conduction loss. |
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-A3V6,115 | ±1 % tolerance, lower rdif (≤60 Ω), identical VZ range and package | Higher precision required in metrology or calibration circuits where <1 % error budget is mandatory | Select when tighter initial accuracy outweighs cost premium and thermal drift is managed separately |
| BZX384-C3V6,115 | ≈±5 % tolerance, higher rdif (≤100 Ω), same thermal ratings and surge capability | Cost-sensitive consumer electronics where ±3 % system-level tolerance is acceptable | Choose for high-volume production where statistical binning compensates for wider spread |
Compared with BZX384-B3V6,115, the A variant offers superior initial accuracy but no improvement in temperature stability, while the C variant trades precision for unit cost reduction-making the B grade optimal for general-purpose industrial regulation where ±2 % meets design margins without over-specifying.
Availability
BZX384-B3V6,115 is available at Aetrix Electronics and suitable for power supply feedback networks, microcontroller I/O protection, analog sensor biasing, and signal-level clamping requiring stable component supply and consistent parametric performance across production lots.
Supply support for BZX384-B3V6,115 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 logic, discrete, and MOSFET solutions, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered specifically for space-constrained, low-power applications demanding stable voltage references with tight tolerances and robust surge handling in SMD form factors.
FAQ
What is the maximum continuous reverse current the BZX384-B3V6,115 can sustain?
The device does not specify a maximum continuous reverse current rating; instead, its steady-state operation is governed by power dissipation limits. At 25 °C ambient on a standard FR4 board, it supports up to ~83 mA reverse current (300 mW ÷ 3.6 V) before exceeding 300 mW Ptot. Derating applies above 25 °C per the thermal resistance curve.
Can BZX384-B3V6,115 be used in place of a 3.3 V Zener for logic-level clamping?
Yes, but with intentional margin: its 3.53–3.67 V breakdown provides ~300 mV headroom above a 3.3 V rail, preventing false triggering during normal operation while still engaging during overvoltage events. Forward conduction at 0.9 V also enables bidirectional clamping when combined with a series resistor.
How does the −3.5 mV/K temperature coefficient affect long-term stability?
This coefficient means the Zener voltage decreases by 3.5 mV per °C rise in junction temperature. Over a 50 °C ambient range (25–75 °C), with typical self-heating, total drift remains within ±175 mV - acceptable for non-critical references but requires compensation in precision instrumentation applications.
Is the SOD323 package compatible with standard reflow profiles for lead-free soldering?
Yes - Nexperia specifies compatibility with JEDEC J-STD-020D reflow profiles. The SOD323 outline supports peak temperatures up to 260 °C for ≤30 seconds, with recommended solder paste volume and pad geometry detailed in Figure 12 of the datasheet to prevent tombstoning or voiding.
BZX384-B3V6,115 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):
- 3.6 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-B3V6,115 FAQ
1.How can I place an order for BZX384-B3V6,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B3V6,115 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-B3V6,115 reliable?
The price and inventory of BZX384-B3V6,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-B3V6,115 is usually 5 days.
3.What payment methods are accepted for BZX384-B3V6,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B3V6,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B3V6,115?
BZX384-B3V6,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B3V6,115 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-B3V6,115?
For technical support, including BZX384-B3V6,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B3V6,115 requirements.
6.How does Aetrix verify that BZX384-B3V6,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-B3V6,115 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-B3V6,115 meets industry standards.
7.What is the process for return or replacement of BZX384-B3V6,115?
All BZX384-B3V6,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B3V6,115, 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-B3V6,115 part is unused and in its original packaging.
Return procedure for BZX384-B3V6,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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