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Nexperia USA Inc. BZX384-B8V2,115
- Part No.:
- BZX384-B8V2,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZX384-B8V2,115.pdf
- Description:
- DIODE ZENER 8.2V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:47,325
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Product details
Overview
BZX384-B8V2,115 from Nexperia is a ±2 % tolerance Zener voltage regulator diode in SOD323 (SC-76) package, rated for 8.2 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 linear regulators, overvoltage protection circuits, and biasing networks for analog signal conditioning.
For engineers reviewing the BZX384-B8V2,115 datasheet, BZX384-B8V2,115 pinout, BZX384-B8V2,115 application, or BZX384-B8V2,115 equivalent, key selection criteria include Zener voltage tolerance (±2 %), differential resistance (≤80 Ω at IZ = 5 mA), thermal resistance (110 K/W to solder point), and non-repetitive surge capability (4.0 A peak reverse current).
Technical Context
This Zener diode operates in reverse-biased avalanche mode with a specified 8.2 V working voltage at 5 mA test current. Its temperature coefficient is +3.2 mV/K at IZ = 5 mA, indicating positive drift with rising junction temperature - critical for precision reference stability across operating ranges.
The device features low dynamic impedance (80 Ω max at 5 mA), enabling tight regulation under varying load conditions. Its SOD323 package delivers compact mounting with verified thermal performance: Rth(j–sp) = 110 K/W to cathode solder point, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.04 V to 8.36 V at IZ = 5 mA - defines regulated output range in shunt configuration |
| Differential Resistance (rdif) | ≤80 Ω at IZ = 5 mA - determines regulation stiffness against current variation |
| Reverse Current (IR) | ≤0.7 μA at VR = 6.56 V - ensures minimal leakage below knee voltage |
| Power Dissipation (Ptot) | 300 mW at Tamb ≤ 25 °C on FR4 PCB - sets continuous DC power limit in standard layout |
| Non-repetitive Peak Current (IZSM) | 4.0 A at tp = 100 μs - supports transient overvoltage clamping without failure |
| Temperature Coefficient (SZ) | +3.2 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temp |
| Junction Temperature (Tj) | −65 °C to +150 °C - defines safe silicon operating envelope for reliability |
Pinout & Package
The BZX384-B8V2,115 is housed in a surface-mount SOD323 (SC-76) plastic package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker aligns with PCB silkscreen bar |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±2 % Zener voltage tolerance | Enables tighter output regulation than ±5 % variants, reducing need for post-regulation trimming |
| 300 mW power rating | Supports continuous operation in space-constrained consumer and industrial PCBs without heatsinking |
| Low 80 Ω dynamic impedance | Maintains <1 % output deviation across 1–10 mA load current changes in shunt regulator designs |
| 110 K/W junction-to-solder-point thermal resistance | Allows direct thermal coupling to copper pour for improved power handling in high-ambient environments |
| 4.0 A non-repetitive surge rating | Clamps ESD and inductive kick events per IEC 61000-4-2 Level 4 without degradation |
Applications
| Power Supply Reference | Sensor Biasing |
|---|---|
Use Scenario: Providing stable 8.2 V reference for op-amp feedback networks in 12 V input DC/DC converters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise feedback threshold for error amplifier. Use Value: ±2 % tolerance and +3.2 mV/K TC enable <±1.5 % output accuracy across −40 °C to +85 °C ambient. | Use Scenario: Biasing bridge-based pressure sensors requiring stable excitation voltage. IC Role / Device Role / Timing Role: Low-noise voltage source for Wheatstone bridge excitation in analog front-ends. Use Value: 80 Ω rdif minimizes sensor output drift caused by supply current variations during signal acquisition. |
| Overvoltage Clamp | Microcontroller I/O Protection |
Use Scenario: Protecting 5 V logic inputs from 12 V transients induced by relay coil flyback. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting surge energy before IC damage occurs. Use Value: 4.0 A IZSM rating handles 100 μs surges up to 32.8 W without parametric shift or failure. | Use Scenario: Safeguarding GPIO pins of ARM Cortex-M microcontrollers against ESD events. IC Role / Device Role / Timing Role: Primary ESD suppression element placed directly at connector interface. Use Value: SOD323 footprint enables placement within 2 mm of I/O pad, preserving clamping effectiveness per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5231BS-7-F | 8.2 V ±5 % tolerance; 200 mW Ptot; SOT-323 package | Higher rdif (150 Ω); lower surge rating (2.5 A) | Select when cost sensitivity outweighs regulation precision and surge robustness |
| BZX384-C8V2,115 | 8.2 V ±5 % tolerance; identical package and Ptot | Higher IR (≤1.0 μA at VR = 6.56 V); same SZ (+3.2 mV/K) | Choose for non-critical biasing where ±5 % VZ suffices and leakage margin is acceptable |
Compared with MMBZ5231BS-7-F, BZX384-B8V2,115 offers tighter tolerance and higher surge immunity; versus BZX384-C8V2,115, it delivers superior voltage accuracy at the cost of slightly higher unit price - optimal for precision analog references.
Availability
BZX384-B8V2,115 is available at Aetrix Electronics and suitable for power supply reference, sensor biasing, overvoltage clamp, and microcontroller I/O protection requiring stable component supply across industrial, automotive (non-safety), and consumer electronics programs.
Supply support for BZX384-B8V2,115 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 leading semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume logic, discrete, and MOSFET solutions with emphasis on efficiency, reliability, and miniaturization.
The BZX384 series belongs to Nexperia's precision Zener regulator portfolio, engineered for low-power voltage reference and protection functions in space-constrained, thermally demanding applications.
FAQ
What is the maximum continuous reverse current for BZX384-B8V2,115 at 25 °C ambient?
The device is rated for 250 mA maximum forward current, but its continuous reverse (Zener) current is limited by power dissipation: at 25 °C ambient on FR4 PCB, 300 mW / 8.2 V ≈ 36.6 mA is the practical upper limit for sustained operation without exceeding thermal limits.
How does the +3.2 mV/K temperature coefficient affect long-term reference stability?
A +3.2 mV/K coefficient means the Zener voltage increases by 3.2 mV per °C rise in junction temperature. Over a 100 °C junction swing (25 °C to 125 °C), this yields +320 mV drift - approximately +3.9 % of nominal 8.2 V - requiring thermal design mitigation or compensation in precision applications.
Can BZX384-B8V2,115 replace BZX384-A8V2 in existing designs?
Yes, but with trade-offs: BZX384-A8V2 has tighter ±1 % tolerance (8.11–8.29 V) versus BZX384-B8V2's ±2 % (8.04–8.36 V). If system-level regulation accuracy requires <±1.5 %, the A-grade part is preferred; otherwise, the B-grade offers cost advantage with identical package, thermal, and surge ratings.
Is this device qualified for automotive applications?
No - the BZX384-B8V2,115 is not automotive-qualified. Per Nexperia's revision history (Rev. 4, Jan 2023), the BZX384 series was explicitly changed to non-automotive qualification. For automotive use, consult Nexperia's separate -Q qualified Zener families such as PZTA44-Q or BZX84-Q series.
BZX384-B8V2,115 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):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 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-B8V2,115 FAQ
1.How can I place an order for BZX384-B8V2,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX384-B8V2,115 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-B8V2,115 reliable?
The price and inventory of BZX384-B8V2,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX384-B8V2,115 is usually 5 days.
3.What payment methods are accepted for BZX384-B8V2,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX384-B8V2,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX384-B8V2,115?
BZX384-B8V2,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX384-B8V2,115 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-B8V2,115?
For technical support, including BZX384-B8V2,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX384-B8V2,115 requirements.
6.How does Aetrix verify that BZX384-B8V2,115 is sourced from the original manufacturer or authorized distributors?
All BZX384-B8V2,115 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-B8V2,115 meets industry standards.
7.What is the process for return or replacement of BZX384-B8V2,115?
All BZX384-B8V2,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZX384-B8V2,115, 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-B8V2,115 part is unused and in its original packaging.
Return procedure for BZX384-B8V2,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX384-B8V2,115 Tags
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