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Nexperia USA Inc. BZX84-C8V2/DG/B3,2
- Part No.:
- BZX84-C8V2/DG/B3,2
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84-C8V2/DG/B3,2.pdf
- Description:
- DIODE ZENER 8.2V 250MW TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,873
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Product details
Overview
BZX84-C8V2/DG/B3,2 from Nexperia is a silicon planar Zener diode in SOT23 package, designed for low-power voltage regulation and reference applications. It provides a nominal 8.2 V breakdown voltage at 5 mA with ±5 % tolerance, 80 Ω maximum differential resistance, and 0.7 μA reverse current at 6.5 V. It operates in general-purpose analog signal conditioning circuits requiring stable DC bias or overvoltage clamping.
For engineers reviewing the BZX84-C8V2/DG/B3,2 datasheet, BZX84-C8V2/DG/B3,2 pinout, BZX84-C8V2/DG/B3,2 application, or BZX84-C8V2/DG/B3,2 equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (330 K/W to solder point), non-repetitive surge capability (40 W), and SOT23 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode functions as a two-terminal shunt regulator, maintaining a stable reverse-biased voltage across its cathode–anode terminals when current exceeds the knee threshold (~1 mA). Its temperature coefficient of +3.2 mV/K at 5 mA enables predictable drift compensation in precision references.
The device uses a planar epitaxial process for consistent breakdown characteristics and integrates a not-connected (n.c.) terminal (Pin 2) to support standardized SOT23 mechanical mounting without electrical function-distinct from dual-anode or dual-cathode configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.7 V to 8.7 V at IZ = 5 mA - defines usable regulation window under standard test conditions |
| Differential Resistance (rdif) | ≤80 Ω - limits output impedance variation during load transients |
| Reverse Current (IR) | ≤0.7 μA at VR = 6.5 V - ensures minimal leakage in standby or high-impedance bias networks |
| Power Dissipation (Ptot) | 250 mW at Tamb ≤ 25 °C - sets continuous DC power limit on FR4 PCB with standard copper |
| Non-repetitive Peak Power (PZSM) | 40 W for tp = 100 μs - supports transient overvoltage suppression in ESD or surge events |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - confirms low-loss conduction in forward-biased protection paths |
| Thermal Resistance (Rth(j-sp)) | 330 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal design margining |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm body, 0.95 mm height, and standard FR4-compatible footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward current entry point; reverse-biased connection to regulated node |
| 2 | Not Connected (n.c.) | Mechanical lead only-no internal semiconductor connection; must remain unconnected in layout |
| 3 | Cathode (K) | Reference potential node; connected to system ground or common return for regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective regulation where tight initial accuracy is not required, e.g., supply rail monitoring |
| 250 mW total power dissipation | Supports continuous operation in space-constrained consumer and industrial PCBs without heatsinking |
| 40 W non-repetitive peak power rating | Provides robustness against short-duration surges such as IEC 61000-4-5 induced transients |
| SOT23 package with n.c. pin | Ensures mechanical stability and alignment during reflow while eliminating risk of accidental shorting |
| +3.2 mV/K temperature coefficient | Allows predictable voltage drift compensation in temperature-sensitive analog front-ends |
Applications
| Power Supply Monitoring | Signal Level Clamping |
|---|---|
Use Scenario: Detecting undervoltage or overvoltage conditions in 9 V battery-powered instrumentation. IC Role / Device Role / Timing Role: Shunt reference element feeding comparator input to trigger reset or alert logic. Use Value: Stable 8.2 V reference enables accurate trip-point setting within ±5 % tolerance without trimming. | Use Scenario: Protecting ADC input pins from transient overvoltage during sensor interface in automotive cabin modules. IC Role / Device Role / Timing Role: Bidirectional clamp limiting signal swing between GND and 8.2 V. Use Value: Low 80 Ω dynamic impedance ensures fast clamping response (<100 ns) and minimal signal distortion. |
| DC Bias Generation | ESD Protection Network |
Use Scenario: Establishing precise bias voltage for op-amp input stages in audio preamplifiers. IC Role / Device Role / Timing Role: Passive Zener reference providing stable quiescent operating point. Use Value: +3.2 mV/K tempco allows predictable offset tracking across –40 °C to +85 °C ambient range. | Use Scenario: Secondary protection layer downstream of TVS diodes in USB 2.0 data line ESD mitigation. IC Role / Device Role / Timing Role: Low-leakage shunt path absorbing residual energy after primary TVS clamping. Use Value: 0.7 μA max reverse leakage at 6.5 V prevents loading of high-impedance data lines during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5231BS | 8.2 V nominal, ±5 %, 225 mW Ptot, 100 Ω rdif, SOT23 package | Higher differential resistance reduces regulation precision under varying load | Select when lower-cost sourcing is prioritized and 100 Ω impedance is acceptable |
| Vishay BZX84-C8V2-TP | 8.2 V nominal, ±5 %, 350 mW Ptot, 80 Ω rdif, same SOT23 pinout | Higher power rating allows extended DC operation at elevated ambient temperatures | Select when continuous 300 mW dissipation is required beyond Nexperia's 250 mW limit |
Compared with MMBZ5231BS and BZX84-C8V2-TP, the BZX84-C8V2/DG/B3,2 offers optimal balance of regulation precision (80 Ω rdif), thermal performance (330 K/W to solder point), and industry-standard marking (Z7% per Table 4), making it preferred for high-volume industrial control and sensor signal conditioning where consistency and manufacturability matter.
Availability
BZX84-C8V2/DG/B3,2 is available at Aetrix Electronics and suitable for power supply monitoring, signal level clamping, DC bias generation, and ESD protection networks requiring stable component supply and full traceability.
Supply support for BZX84-C8V2/DG/B3,2 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 headquartered in Nijmegen, Netherlands, specializing in high-volume production of discrete, logic, and MOSFET devices with emphasis on reliability, efficiency, and sustainability.
The BZX84 series belongs to Nexperia's voltage regulator diode product line, engineered for cost-sensitive, space-constrained applications demanding stable Zener behavior across industrial temperature ranges without automotive qualification overhead.
FAQ
What is the maximum continuous reverse current this diode can handle at 8.2 V?
The BZX84-C8V2/DG/B3,2 is not rated for continuous reverse current at its Zener voltage. Its specified Zener test current is 5 mA, and maximum continuous power dissipation is 250 mW. At 8.2 V, that corresponds to ~30.5 mA absolute maximum steady-state reverse current-exceeding this risks thermal runaway and permanent degradation.
Is Pin 2 electrically functional or purely mechanical?
Pin 2 is explicitly designated "not connected" (n.c.) in the official Nexperia datasheet. It has no internal semiconductor connection and serves only as a mechanical support lead for SOT23 package stability during handling and reflow. It must remain unconnected in circuit layout and should never be tied to ground, VCC, or any other net.
Can this Zener diode be used in series to achieve higher reference voltages?
Yes-multiple BZX84-C8V2/DG/B3,2 diodes may be connected in series (cathode-to-anode) to sum Zener voltages, provided each device receives sufficient current (>5 mA) and power derating accounts for cumulative dissipation. However, tolerance stacking (±5 % per unit) and tempco mismatch (+3.2 mV/K each) will increase overall uncertainty and drift versus a single higher-voltage Zener.
Does this part meet RoHS and REACH compliance requirements?
Yes-BZX84-C8V2/DG/B3,2 is manufactured by Nexperia in accordance with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Full compliance documentation, including substance declarations and test reports, is available via Nexperia's official product page and Aetrix Electronics' material compliance portal.
BZX84-C8V2/DG/B3,2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BZX84-C8V2/DG/B3,2 FAQ
1.How can I place an order for BZX84-C8V2/DG/B3,2 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84-C8V2/DG/B3,2 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 BZX84-C8V2/DG/B3,2 reliable?
The price and inventory of BZX84-C8V2/DG/B3,2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84-C8V2/DG/B3,2 is usually 5 days.
3.What payment methods are accepted for BZX84-C8V2/DG/B3,2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84-C8V2/DG/B3,2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84-C8V2/DG/B3,2?
BZX84-C8V2/DG/B3,2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84-C8V2/DG/B3,2 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 BZX84-C8V2/DG/B3,2?
For technical support, including BZX84-C8V2/DG/B3,2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84-C8V2/DG/B3,2 requirements.
6.How does Aetrix verify that BZX84-C8V2/DG/B3,2 is sourced from the original manufacturer or authorized distributors?
All BZX84-C8V2/DG/B3,2 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 BZX84-C8V2/DG/B3,2 meets industry standards.
7.What is the process for return or replacement of BZX84-C8V2/DG/B3,2?
All BZX84-C8V2/DG/B3,2 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84-C8V2/DG/B3,2, 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 BZX84-C8V2/DG/B3,2 part is unused and in its original packaging.
Return procedure for BZX84-C8V2/DG/B3,2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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