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Nexperia USA Inc. BZX8850-B8V2YL
- Part No.:
- BZX8850-B8V2YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-B8V2YL.pdf
- Description:
- DIODE ZENER 8.2V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:4,872
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Product details
Overview
BZX8850-B8V2YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 8.2 V nominal with ±2 % tolerance. It delivers stable reference voltage at 50 µA test current, features 80 Ω differential resistance at 5 mA, and operates within −55 °C to +150 °C ambient range - ideal for battery-powered sensor nodes and portable voltage monitoring circuits.
For engineers reviewing the BZX8850-B8V2YL datasheet, BZX8850-B8V2YL pinout, BZX8850-B8V2YL application, or BZX8850-B8V2YL equivalent, this page provides verified Zener voltage, thermal resistance, leakage behavior, cathode/anode terminal mapping, and direct-fit alternatives for low-power analog reference design.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 8.2 V at IZ = 50 µA, exhibiting a temperature coefficient of +3.2 mV/K and typical capacitance of 150 pF at 0 V. Its low 50 µA test current enables ultra-low standby biasing in energy-constrained systems.
The device uses silicon planar technology with controlled doping to achieve tight 2 % voltage tolerance and low dynamic impedance (80 Ω at 5 mA). Its DFN1006-2 package provides minimal thermal resistance (500 K/W junction-to-ambient) on FR4 PCBs, 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 = 50 µA - ensures precise 8.2 V reference under minimal bias current |
| Tolerance | ±2 % - supports high-accuracy analog sensing and calibration without trimming |
| Differential Resistance rdiff | 80 Ω at IZ = 5 mA - maintains stable regulation against load transients in low-current rails |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA - enables use as clamp or protection diode in dual-role circuits |
| Total Power Dissipation | 250 mW at Tamb ≤ 25 °C - defines maximum continuous power handling on standard FR4 PCB |
| Junction Temperature | −55 °C to +150 °C - supports operation in industrial and automotive under-hood environments |
| Reverse Leakage IR | ≤0.1 µA at VR = 6.2 V - guarantees negligible quiescent current in always-on monitoring circuits |
Pinout & Package
Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package measuring 1.0 × 0.6 × 0.5 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables regulation in microamp-level supply domains like RTC backup or wake-up comparators |
| Tight voltage tolerance | ±2 % (B-series) - eliminates need for external trimming in factory-calibrated sensor front-ends |
| Ultra-compact footprint | DFN1006-2 (1.0 × 0.6 mm) - saves board space in wearables and IoT edge nodes with strict size constraints |
| Controlled temperature coefficient | +3.2 mV/K - compensates for typical op-amp input offset drift in precision reference buffers |
| Optimized leakage profile | Intentional minor rise per AN90031 - reduces switching noise in fast-sampling ADC reference paths |
Applications
| Portable Sensor Reference | RTC Backup Voltage Clamp |
|---|---|
Use Scenario: Providing stable 8.2 V reference for analog signal conditioning in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Zener voltage regulator establishing fixed bias point for op-amp gain stages and ADC input scaling. Use Value: Maintains measurement accuracy across −40 °C to +85 °C while drawing only 50 µA, extending coin-cell life beyond 5 years. |
Use Scenario: Clamping backup supply voltage to prevent overvoltage damage to real-time clock ICs during main power transitions. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as precision shunt limiter on VBACKUP rail. Use Value: Limits voltage to 8.36 V max with <0.1 µA leakage at 6.2 V, avoiding false resets or capacitor stress in low-power retention mode. |
| Low-Power Microcontroller Reset Circuit | Current-Sense Amplifier Bias Reference |
Use Scenario: Generating clean reset threshold voltage for ultra-low-power MCUs operating from single Li-ion cells. IC Role / Device Role / Timing Role: Zener-based voltage divider feeding comparator input in supervisor circuitry. Use Value: Delivers 8.2 V reference with 80 Ω dynamic impedance, ensuring reset assertion remains stable despite 10 µA supply current variation. |
Use Scenario: Setting common-mode voltage for high-side current-sense amplifiers in compact motor drivers. IC Role / Device Role / Timing Role: Precision shunt reference establishing VCM node independent of supply ripple. Use Value: Provides 8.2 V reference with +3.2 mV/K tempco that tracks amplifier input offset drift, reducing system-level calibration steps. |
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 ±5 %, SOT-23 package, 350 mW Ptot, rdiff = 25 Ω at 20 mA | Higher power rating but larger footprint and looser tolerance - suitable when higher current drive needed | Select when >10 mA Zener current required and board space allows SOT-23; avoid for sub-100 µA biasing |
| Vishay BZX84-C8V2 | 8.2 V ±5 %, SOT-23, 300 mW Ptot, rdiff = 20 Ω at 5 mA, no low-leakage optimization | Lower dynamic impedance but uncontrolled leakage - may increase standby current in always-on designs | Prefer for cost-sensitive consumer applications where 5 % tolerance and higher leakage are acceptable |
Compared with BZX8850-B8V2YL, MMBZ5231BS offers lower impedance at higher current but sacrifices precision and size; BZX84-C8V2 trades tighter thermal stability and ultra-low leakage for wider tolerance and higher leakage - making BZX8850-B8V2YL optimal for space-constrained, battery-critical analog references.
Availability
BZX8850-B8V2YL is available at Aetrix Electronics and suitable for portable sensor reference, RTC backup voltage clamp, and low-power microcontroller reset circuit applications requiring stable component supply across extended temperature ranges and long-life deployments.
Supply support for BZX8850-B8V2YL 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 logic, discrete, and MOSFET devices with focus on efficiency, reliability, and miniaturization for industrial, automotive, and consumer markets.
The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for voltage reference and clamping in space- and power-constrained applications where 50 µA test current and ±2 % tolerance are critical design requirements.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850-B8V2YL?
The BZX8850-B8V2YL exhibits a guaranteed Zener voltage range of 8.04 V to 8.36 V at 50 µA test current. Breakdown begins within this band; it does not have a distinct "maximum reverse voltage before breakdown" - instead, its specified knee occurs at 50 µA, with sharp conduction onset and 80 Ω dynamic impedance above that point.
Can BZX8850-B8V2YL be used in forward-bias configuration?
Yes - its forward voltage is specified ≤0.9 V at 10 mA, making it usable as a low-drop clamp or ESD protection diode. However, its primary design intent and characterization are for reverse-bias Zener operation; forward conduction capability is secondary and not optimized for high-current rectification.
How does the marking code '6Y' correspond to BZX8850-B8V2YL?
Per Nexperia's official marking table, '6Y' is the top-side laser mark for BZX8850-B8V2YL. This two-character code uniquely identifies the 8.2 V ±2 % variant within the BZX8850-B series and is visible on the cathode-end of the DFN1006-2 package.
Is thermal derating required for operation above 25 °C ambient?
Yes - total power dissipation must be linearly derated above 25 °C ambient at 2.5 mW/°C, based on its 500 K/W junction-to-ambient thermal resistance. At 85 °C ambient, maximum allowable power drops to 100 mW, requiring careful layout and current limiting in high-temperature deployments.
BZX8850-B8V2YL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8850
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 6.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2
BZX8850-B8V2YL FAQ
1.How can I place an order for BZX8850-B8V2YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-B8V2YL 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 BZX8850-B8V2YL reliable?
The price and inventory of BZX8850-B8V2YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-B8V2YL is usually 5 days.
3.What payment methods are accepted for BZX8850-B8V2YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-B8V2YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-B8V2YL?
BZX8850-B8V2YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-B8V2YL 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 BZX8850-B8V2YL?
For technical support, including BZX8850-B8V2YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-B8V2YL requirements.
6.How does Aetrix verify that BZX8850-B8V2YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-B8V2YL 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 BZX8850-B8V2YL meets industry standards.
7.What is the process for return or replacement of BZX8850-B8V2YL?
All BZX8850-B8V2YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-B8V2YL, 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 BZX8850-B8V2YL part is unused and in its original packaging.
Return procedure for BZX8850-B8V2YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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