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Nexperia USA Inc. BZX384-B16,115
- Part No.:
- BZX384-B16,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B16,115.pdf
- Description:
- DIODE ZENER 16V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:69,192
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Product details
Overview
BZX384-B16,115 from Nexperia is a ±2 % 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 150 °C maximum junction temperature. It provides stable reference voltage in low-power analog circuits, power supply feedback paths, and overvoltage protection clamping.
For engineers reviewing the BZX384-B16,115 datasheet, BZX384-B16,115 pinout, BZX384-B16,115 application, or BZX384-B16,115 equivalent, key selection criteria include Zener voltage tolerance (±2 %), thermal resistance (415 K/W junction-to-ambient), non-repetitive peak reverse power (40 W), and SOD323 footprint compatibility with high-density PCB layouts.
Technical Context
This discrete Zener diode operates in reverse-bias breakdown mode to maintain a stable DC reference voltage across its terminals under varying load and input conditions. Its differential resistance of 200 Ω at 5 mA ensures minimal voltage shift with current changes, while the −0.05 mV/K temperature coefficient near 16 V enables predictable drift behavior in ambient temperature ranges from −65 °C to +150 °C.
The device supports transient suppression via 40 W non-repetitive peak reverse power handling at 100 μs pulse width, and its 150 °C maximum junction temperature allows reliable operation in thermally constrained environments when mounted on standard FR4 PCBs with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.7 V to 16.3 V at IZ = 5 mA - tight ±2 % tolerance ensures precise regulation in feedback networks |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C - defines continuous DC operating limit on standard FR4 PCB |
| Differential Resistance (rdif) | 200 Ω max at IZ = 5 mA - low impedance maintains voltage stability against load current variation |
| Reverse Current (IR) | 0.05 μA max at VR = 12.8 V - ultra-low leakage preserves accuracy in high-impedance biasing |
| Thermal Resistance (Rth(j-a)) | 415 K/W - determines junction temperature rise above ambient under steady-state power |
| Non-repetitive Peak Power (PZSM) | 40 W at tp = 100 μs - enables short-duration surge clamping without damage |
| Junction Temperature (Tj) | −65 °C to +150 °C - supports industrial and extended-temperature applications |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package with 2 leads, 1.35 mm × 0.85 mm body size, 0.45 mm lead pitch, and cathode-marked top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-bias polarity must be observed for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables accurate voltage reference without post-production trimming in precision analog designs |
| 300 mW total power rating | Supports continuous regulation in space-constrained, low-power systems such as sensor interfaces and portable electronics |
| 415 K/W junction-to-ambient thermal resistance | Allows thermal design margin estimation using standard FR4 PCB layout without heatsinking |
| 40 W non-repetitive peak reverse power | Provides transient overvoltage protection capability for ESD and inductive switching events |
| SOD323 footprint compatibility | Matches industry-standard 0805-equivalent land pattern for automated assembly and reflow process control |
Applications
| Power Supply Feedback | Overvoltage Clamping |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck converter feedback loops using optocoupler-coupled error amplifiers. IC Role / Device Role / Timing Role: Zener diode serves as precision voltage reference for TL431-like shunt regulator circuits or direct feedback node clamping. Use Value: ±2 % VZ tolerance ensures output regulation within ±1.5 % over line/load/temperature, reducing need for external calibration. |
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient overvoltage events exceeding 16 V. IC Role / Device Role / Timing Role: Acts as passive clamp by conducting above 16.3 V, diverting excess current to ground before downstream damage occurs. Use Value: 40 W peak power rating handles 100 μs surges up to 16.3 V × 2.45 A without degradation, meeting IEC 61000-4-5 Level 3 requirements. |
| Reference Voltage Source | Signal Level Shifting |
|
Use Scenario: Generating stable 16 V reference for analog comparators, DAC buffers, or op-amp biasing in industrial instrumentation. IC Role / Device Role / Timing Role: Provides low-drift, low-noise DC reference point independent of supply rail fluctuations. Use Value: 200 Ω differential resistance minimizes voltage droop under 100 μA load changes, maintaining reference accuracy to ±0.02 V. |
Use Scenario: Translating logic-level signals between 3.3 V and 16 V domains in mixed-voltage interface circuits. IC Role / Device Role / Timing Role: Functions as bidirectional level translator by exploiting forward conduction (0.9 V) and reverse breakdown (16 V) thresholds. Use Value: 0.9 V forward voltage at 10 mA enables clean low-side switching, while sharp 16 V knee supports deterministic high-side clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | 16 V nominal, ±5 % tolerance, SOT-323 package, 200 mW Ptot, 300 Ω rdif | Higher voltage tolerance and lower power rating reduce regulation precision in feedback loops | Select when cost sensitivity outweighs tight tolerance requirements and board space permits SOT-323 footprint |
| BZX384-C16,115 | 16 V nominal, ±5 % tolerance, identical SOD323 package and 300 mW rating, 225 Ω rdif | Looser tolerance increases output variation in closed-loop regulation but improves surge robustness margin | Choose for non-critical clamping where 15.3–16.7 V range is acceptable and higher IZSM (1.5 A vs. 1.25 A) is beneficial |
Compared with BZX384-B16,115, MMBZ5245BS-7-F trades precision for cost and BZX384-C16,115 sacrifices tolerance control for wider voltage margin and slightly higher surge current-making the B16 variant optimal for applications demanding ±2 % stability without sacrificing SOD323 compactness or 300 mW capability.
Availability
BZX384-B16,115 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamping, and reference voltage source applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for BZX384-B16,115 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 manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume production of discrete devices, logic ICs, and MOSFETs with emphasis on reliability and efficiency.
The BZX384 series belongs to Nexperia's precision Zener diode product line, engineered specifically for low-power voltage reference and regulation in consumer, industrial, and communication equipment where SMD miniaturization and parametric consistency are critical.
FAQ
What is the maximum continuous reverse current the BZX384-B16,115 can sustain at 25 °C ambient?
The device does not specify a maximum continuous reverse current; instead, it is rated for 300 mW total power dissipation at Tamb ≤ 25 °C. At 16 V Zener voltage, this corresponds to a maximum continuous Zener current of 18.75 mA (300 mW ÷ 16 V), assuming negligible forward drop and full power dissipation in breakdown mode.
Can BZX384-B16,115 be used in automotive applications?
No-this part is explicitly marked as non-automotive qualified in the datasheet revision history. Nexperia states that BZX384-B16,115 is not tested or qualified to AEC-Q101 standards, and automotive alternatives must be selected from their dedicated −Q qualified product line.
How does the cathode marking appear on the BZX384-B16,115 package?
The cathode is identified by a visible marking bar on the top surface of the SOD323 package, aligned with Pin 1 per the simplified outline in Table 2. This bar matches the "K" designation in the pinning diagram and must be oriented toward the higher-potential node in reverse-bias configuration.
Is thermal derating required above 25 °C ambient temperature?
Yes-power dissipation must be linearly derated above 25 °C using the 415 K/W junction-to-ambient thermal resistance. For example, at 75 °C ambient, maximum allowable Ptot drops to 179 mW ((150 °C − 75 °C) ÷ 415 K/W), ensuring junction temperature remains at or below 150 °C.
BZX384-B16,115 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):
- 16 V
- Tolerance:
- ±2%
- 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:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZX384-B16,115 FAQ
1.How can I place an order for BZX384-B16,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B16,115 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-B16,115 reliable?
The price and inventory of BZX384-B16,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-B16,115 is usually 5 days.
3.What payment methods are accepted for BZX384-B16,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B16,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B16,115?
BZX384-B16,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B16,115 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-B16,115?
For technical support, including BZX384-B16,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B16,115 requirements.
6.How does Aetrix verify that BZX384-B16,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-B16,115 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-B16,115 meets industry standards.
7.What is the process for return or replacement of BZX384-B16,115?
All BZX384-B16,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B16,115, 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-B16,115 part is unused and in its original packaging.
Return procedure for BZX384-B16,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-B16,115 Tags
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