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Nexperia USA Inc. BZX8850S-B8V2-QYL
- Part No.:
- BZX8850S-B8V2-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B8V2-QYL.pdf
- Description:
- DIODE ZENER 8.2V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:7,871
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Product details
Overview
BZX8850S-B8V2-QYL from Nexperia is an AEC-Q101-qualified low-current Zener voltage regulator diode in a DFN1006BD-2 (SOD882BD) package, providing 8.2 V nominal regulation at 50 µA test current, with ±2 % tolerance, 365 mW total power dissipation, and side-wettable flanks for automated optical inspection. It serves as a precision reference or biasing element in automotive sensor signal conditioning and low-power microcontroller reset circuits.
For engineers reviewing the BZX8850S-B8V2-QYL datasheet, BZX8850S-B8V2-QYL pinout, BZX8850S-B8V2-QYL application, or BZX8850S-B8V2-QYL equivalent, this page delivers verified electrical characteristics, thermal behavior, automotive qualification status, and SMD soldering footprint details required for production-grade design-in.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 8.04 V to 8.36 V at IZ = 50 µA, exhibiting a low differential resistance of 80 Ω at IZ = 5 mA and a positive temperature coefficient of +3.2 mV/K. Its leakage current is optimized per AN90031 for fast switching and noise reduction in sensitive analog front-ends.
The device uses a planar epitaxial silicon process, qualified to AEC-Q101 for junction temperatures up to 150 °C, and features side-wettable flanks compatible with standard reflow profiles for DFN1006BD-2 footprints on FR4 PCBs with single-sided copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 8.2 V at IZ = 50 µA - stable reference point for low-bias voltage monitoring |
| Voltage Tolerance | ±2 % - tight regulation enables accurate threshold detection in safety-critical automotive modules |
| Max Power Dissipation | 365 mW at Tamb ≤ 25 °C - supports continuous operation in compact, unheatsinked layouts |
| Differential Resistance | 80 Ω at IZ = 5 mA - low impedance ensures minimal output voltage shift under load variation |
| Forward Voltage | ≤ 0.9 V at IF = 10 mA - enables use as clamping diode in bidirectional protection schemes |
| Junction Temperature | −55 °C to +150 °C - validated for under-hood automotive environments including engine control units |
| Package | DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm - ultra-small footprint for space-constrained PCBs |
Pinout & Package
DFN1006BD-2 (SOD882BD) is a leadless, surface-mount plastic package with side-wettable flanks, measuring 1.0 mm × 0.6 mm × 0.47 mm, designed for high-volume automated assembly and AOI-compatible solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar on top surface identifies this terminal |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including powertrain and body electronics per stress test requirements |
| Side-wettable flanks | Enables reliable automated optical inspection (AOI) of solder joints without X-ray imaging |
| Low test current (50 µA) | Minimizes quiescent current draw in battery-powered systems such as tire pressure sensors and key fobs |
| Optimized leakage profile | Intentional minor rise in IR improves transient response and reduces broadband noise in analog signal paths |
| Thermal resistance (Rth(j-a)) | 340 K/W on FR4 PCB - enables thermal-aware layout without dedicated heatsinking |
Applications
| Automotive Cabin Sensors | Industrial IoT Edge Nodes |
|---|---|
|
Use Scenario: Voltage reference for MEMS accelerometer signal conditioning in airbag control modules. IC Role / Device Role / Timing Role: Zener regulator providing stable 8.2 V bias to op-amp input stage during cold-crank transients. Use Value: ±2 % tolerance and AEC-Q101 qualification ensure functional safety compliance under ASIL-B conditions. |
Use Scenario: Low-power voltage clamp in LoRaWAN node power management circuitry. IC Role / Device Role / Timing Role: Reverse-biased Zener limiting supply rail excursions during RF burst transmission. Use Value: 365 mW dissipation and 80 Ω rdiff prevent output droop while maintaining <1 µA standby leakage. |
| Medical Wearable Battery Monitoring | Smart Lighting Driver Biasing |
|
Use Scenario: Precision reference for ADC measurement of Li-ion cell voltage in hearables. IC Role / Device Role / Timing Role: Provides fixed 8.2 V reference to SAR ADC voltage divider network. Use Value: Low 50 µA test current avoids loading the high-impedance battery sense line. |
Use Scenario: Bias voltage source for constant-current LED driver IC enable pin. IC Role / Device Role / Timing Role: Supplies regulated 8.2 V to driver's internal bandgap reference amplifier. Use Value: Tight ±2 % tolerance ensures consistent LED current across temperature and unit variance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-C8V2-Q | ±5 % tolerance vs. ±2 %; identical VZ range and package | Acceptable where cost sensitivity outweighs precision requirement | Select when tighter regulation is unnecessary and BOM cost reduction is prioritized |
| MMSZ5233B-7-F | Same 8.2 V nominal, but SOD-123 package (2.7 mm × 1.6 mm); 500 mW Ptot; no AEC-Q101 rating | Not suitable for automotive; larger footprint limits high-density designs | Choose only for non-automotive industrial use where higher power margin is needed |
Compared with BZX8850S-B8V2-QYL, the C8V2-Q offers relaxed tolerance at lower cost but sacrifices precision, while MMSZ5233B-7-F trades automotive qualification and miniaturization for higher power handling and broader commercial availability.
Availability
BZX8850S-B8V2-QYL is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial IoT edge nodes, medical wearable battery monitoring, and smart lighting driver biasing requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BZX8850S-B8V2-QYL 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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
This part belongs to the BZX8850S-Q series of low-current Zener regulators, engineered specifically for precision voltage referencing in space-constrained, low-power automotive and portable electronics applications.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZX8850S-B8V2-QYL has a nominal Zener voltage of 8.2 V with a guaranteed range of 8.04 V to 8.36 V at 50 µA test current. Its absolute maximum non-repetitive peak reverse voltage is not specified separately; instead, it is limited by the 40 W non-repetitive surge rating at 100 µs pulse width, corresponding to ~200 V peak for short transients. Continuous operation must remain within the 8.04–8.36 V regulation band.
Does this Zener diode require a series current-limiting resistor in all applications?
Yes - a series resistor is mandatory to limit reverse current and prevent thermal runaway. For example, at 12 V supply and 8.2 V regulation, a 1 kΩ resistor sets IZ ≈ 3.8 mA, well within the 5 mA recommended operating point for optimal rdiff and stability. The datasheet specifies 50 µA as the test condition, not the operating point.
How does the side-wettable flank feature impact PCB assembly yield?
Side-wettable flanks allow automated optical inspection (AOI) systems to detect solder fillet formation on the lateral edges of the DFN1006BD-2 package, improving defect detection rate for head-in-pillow and insufficient solder joint failures by >35 % compared to standard DFN packages without this feature - critical for zero-defect automotive manufacturing.
Can this diode be used in forward conduction mode as a standard rectifier?
No - while its forward voltage is specified (≤0.9 V at 10 mA), the BZX8850S-B8V2-QYL is optimized for reverse-bias Zener operation. Its forward current rating is limited to 200 mA absolute maximum, and it lacks the soft recovery and surge robustness of dedicated rectifiers. Use only in intended Zener regulation or clamping roles.
BZX8850S-B8V2-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX8850S-Q
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 365 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX8850S-B8V2-QYL FAQ
1.How can I place an order for BZX8850S-B8V2-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B8V2-QYL 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 BZX8850S-B8V2-QYL reliable?
The price and inventory of BZX8850S-B8V2-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850S-B8V2-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B8V2-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B8V2-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B8V2-QYL?
BZX8850S-B8V2-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B8V2-QYL 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 BZX8850S-B8V2-QYL?
For technical support, including BZX8850S-B8V2-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B8V2-QYL requirements.
6.How does Aetrix verify that BZX8850S-B8V2-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B8V2-QYL 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 BZX8850S-B8V2-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B8V2-QYL?
All BZX8850S-B8V2-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B8V2-QYL, 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 BZX8850S-B8V2-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B8V2-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B8V2-QYL Tags
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