Nexperia USA Inc. BZX8850S-B6V2-QYL
- Part No.:
- BZX8850S-B6V2-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B6V2-QYL.pdf
- Description:
- DIODE ZENER 6.2V 365MW DFN1006BD
- Quantity:
- Payment:

- Shipping:

Inventory:2,683
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Product details
Overview
BZX8850S-B6V2-QYL from Nexperia is a low-current Zener voltage regulator diode in the BZX8850S-Q series, designed for precision voltage reference and regulation in space-constrained, low-power circuits. It delivers a nominal 6.2 V Zener voltage at 50 µA test current, with ±2 % tolerance, 160 Ω differential resistance at 5 mA, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-B6V2-QYL datasheet, BZX8850S-B6V2-QYL pinout, BZX8850S-B6V2-QYL application, or BZX8850S-B6V2-QYL equivalent, this device is selected for battery-powered sensor nodes, ECU voltage monitoring, and low-bias analog reference circuits where ultra-small footprint and stable low-current regulation are critical.
Technical Context
This Zener diode operates as a two-terminal shunt voltage regulator, maintaining stable output voltage by conducting reverse current above its breakdown threshold. Its specified test current of 50 µA enables ultra-low quiescent power draw, while its 160 Ω dynamic impedance at 5 mA ensures predictable regulation under light load variations.
The device features side-wettable flanks (SWF) in the DFN1006BD-2 (SOD882BD) package for automated optical solder-joint inspection, and exhibits a positive temperature coefficient of +0.4 mV/K - enabling predictable thermal drift compensation in mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.08 V to 6.32 V at IZ = 50 µA - tight ±2 % tolerance enables accurate reference generation without trimming. |
| Differential Resistance (rdiff) | 160 Ω max at IZ = 5 mA - low dynamic impedance minimizes output voltage variation under small load shifts. |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - ensures minimal conduction loss when used bidirectionally or in clamping roles. |
| Power Dissipation (Ptot) | 365 mW at Tamb ≤ 25 °C on FR4 PCB - defines maximum continuous regulation power in standard layout conditions. |
| Reverse Current (IR) | ≤ 1.0 µA at VR = 5.0 V - ultra-low leakage preserves battery life in always-on monitoring circuits. |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports operation across full automotive ambient range including under-hood environments. |
| Package | DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm - enables high-density placement on compact PCBs with SWF for AOI compatibility. |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), leadless surface-mount, side-wettable flanks, 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 shunt regulation path during reverse bias. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress-test standard. |
| Side-wettable flanks (SWF) | Enables automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield and reliability verification. |
| Low 50 µA test current | Reduces standby power consumption in battery-backed systems - ideal for IoT sensors and portable instrumentation. |
| ±2 % voltage tolerance | Eliminates need for external calibration in precision reference designs, reducing BOM count and assembly cost. |
| 110 pF capacitance at 0 V | Minimizes high-frequency noise coupling in signal-path references and ADC voltage references. |
Applications
| Automotive ECU Voltage Monitoring | Portable Gas Sensor Reference |
|---|---|
|
Use Scenario: Real-time monitoring of 5 V supply rail integrity in engine control modules using a resistive divider into an ADC input. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 6.2 V reference point for ratio-metric ADC scaling. Use Value: Enables detection of <1 % rail deviation over −40 °C to +125 °C ambient due to tight tolerance and low tempco (+0.4 mV/K). |
Use Scenario: Biasing electrochemical gas sensing elements in handheld CO detectors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-current Zener regulator establishing precise 6.2 V excitation voltage for sensor bridge circuitry. Use Value: Extends battery life beyond 2 years via 1.0 µA max leakage at 5 V reverse bias and 50 µA operating point. |
| Industrial PLC Analog Input Protection | Medical Wearable Signal Conditioning |
|
Use Scenario: Overvoltage clamping on 4–20 mA loop receiver inputs exposed to transient surges in factory automation cabinets. IC Role / Device Role / Timing Role: Fast-response shunt clamp limiting input voltage to 6.2 V during transients up to 40 W non-repetitive peak power. Use Value: Survives 100 µs surges without degradation thanks to 40 W PZSM rating and 150 °C junction limit. |
Use Scenario: Providing stable reference for low-noise instrumentation amplifiers in ECG patch devices. IC Role / Device Role / Timing Role: Low-capacitance (110 pF) Zener reference minimizing phase shift and noise injection into analog front-end. Use Value: Achieves <1 µVpp low-frequency noise contribution due to optimized leakage and rdiff characteristics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 | ±5 % tolerance, SOT-23 package (2.9 mm × 1.3 mm), 350 mW Ptot, 100 Ω rdiff at 5 mA | Larger footprint, higher leakage (≤5 µA), no AEC-Q101 qualification | Select for cost-sensitive industrial boards where size and automotive compliance are not required. |
| MMSZ4687 | ±5 % tolerance, SOD-123 package (3.7 mm × 1.6 mm), 500 mW Ptot, 100 Ω rdiff at 20 mA | Higher power handling but larger size and no SWF; not AEC-Q101 qualified | Choose when higher surge robustness is needed and board area allows larger package. |
Compared with BZX8850S-B6V2-QYL, the BZX84-C6V2 offers lower dynamic impedance but sacrifices automotive qualification and miniaturization; the MMSZ4687 provides greater power margin but lacks side-wettable flanks and fails AEC-Q101 - making the BZX8850S-B6V2-QYL optimal for space-constrained, safety-critical automotive and portable medical designs.
Availability
BZX8850S-B6V2-QYL is available at Aetrix Electronics and suitable for automotive ECUs, portable gas sensors, industrial PLC analog inputs, and medical wearable signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX8850S-B6V2-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The BZX8850S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for low-current, high-stability voltage regulation in automotive electronics and portable battery-powered systems.
FAQ
What is the maximum reverse voltage before breakdown for BZX8850S-B6V2-QYL?
The device exhibits a guaranteed Zener breakdown voltage range of 6.08 V to 6.32 V at 50 µA test current, with no defined "maximum reverse voltage before breakdown" - it enters controlled regulation at the lower bound of that range. Below 6.08 V, reverse leakage remains ≤1.0 µA at 5.0 V, confirming sharp knee behavior.
Can BZX8850S-B6V2-QYL be used in forward-bias applications?
Yes - its forward voltage is specified at ≤0.9 V at 10 mA, making it suitable for low-drop rectification or polarity protection in ultra-low-power circuits. However, its primary design intent and characterization focus remain reverse-bias Zener regulation, and forward current must stay within the 200 mA absolute maximum rating.
Does the side-wettable flank (SWF) feature require special stencil or reflow profile?
No special stencil is required - the DFN1006BD-2 footprint matches standard SOD882BD land patterns (0.6 mm pad width, 0.65 mm pitch). Reflow follows JEDEC J-STD-020; SWF enables post-reflow AOI of solder fillet height without process changes, improving first-pass yield in high-volume automotive assembly.
How does the +0.4 mV/K temperature coefficient impact accuracy over temperature?
At +0.4 mV/K, the Zener voltage increases by 0.4 mV per degree Celsius rise - resulting in +40 mV drift over a 100 °C range (e.g., −40 °C to +60 °C). For 6.2 V nominal output, this represents ±0.32 % full-scale drift, which is fully characterized and stable, enabling software compensation in closed-loop systems.
BZX8850S-B6V2-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):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-B6V2-QYL FAQ
1.How can I place an order for BZX8850S-B6V2-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B6V2-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-B6V2-QYL reliable?
The price and inventory of BZX8850S-B6V2-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-B6V2-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B6V2-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B6V2-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B6V2-QYL?
BZX8850S-B6V2-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B6V2-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-B6V2-QYL?
For technical support, including BZX8850S-B6V2-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B6V2-QYL requirements.
6.How does Aetrix verify that BZX8850S-B6V2-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B6V2-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-B6V2-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B6V2-QYL?
All BZX8850S-B6V2-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B6V2-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-B6V2-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B6V2-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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