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Nexperia USA Inc. BZX8850S-B2V0-QYL
- Part No.:
- BZX8850S-B2V0-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850S-B2V0-QYL.pdf
- Description:
- DIODE ZENER 2V 365MW DFN1006BD-2
- Quantity:
- Payment:
- Shipping:
Inventory:3,554
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Product details
Overview
BZX8850S-B2V0-QYL from Nexperia is a low-current Zener voltage regulator diode in an ultra-small DFN1006BD-2 (SOD882BD) package, designed for precision biasing and voltage reference in space-constrained, battery-powered systems. It delivers a nominal 2.0 V regulation at 50 µA test current, with ±2 % tolerance, 365 mW total power dissipation, and AEC-Q101 qualification for automotive use.
For engineers reviewing the BZX8850S-B2V0-QYL datasheet, BZX8850S-B2V0-QYL pinout, BZX8850S-B2V0-QYL application, or BZX8850S-B2V0-QYL equivalent, this device is selected for low-leakage, low-power voltage stabilization in portable instrumentation, sensor signal conditioning, and automotive microcontroller supply rail clamping where stable 2.0 V reference and side-wettable flanks for solder inspection are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 1.96 V to 2.04 V at IZ = 50 µA, exhibiting low differential resistance (≤600 Ω at 5 mA) and a temperature coefficient of −3.5 mV/K. Its design targets minimal quiescent current draw while maintaining tight voltage tolerance under low-bias conditions.
The device features intentional leakage optimization per AN90031 for fast switching and noise reduction, and its side-wettable flanks support automated optical inspection (AOI) during reflow soldering on FR4 PCBs. Thermal resistance from junction to ambient is 340 K/W under standard mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.0 V - Precise regulation point at 50 µA test current, enabling accurate low-power reference generation |
| Voltage Tolerance | ±2 % - Tight initial accuracy ensures consistent performance across production batches without trimming |
| Max Power Dissipation | 365 mW - Sufficient headroom for transient overvoltage clamping in 2.0 V rail protection circuits |
| Forward Voltage | ≤0.9 V at 10 mA - Low forward drop supports bidirectional protection or dual-use as clamp and rectifier |
| Junction Temperature | −55 °C to +150 °C - Enables operation in under-hood automotive environments and industrial edge nodes |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including HTOL, temperature cycling, and ESD robustness |
| Package | DFN1006BD-2 (SOD882BD) - 1.0 mm × 0.6 mm × 0.47 mm leadless footprint with side-wettable flanks for IPC-compliant assembly |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), ultra-small leadless plastic package with side-wettable flanks; 0.65 mm pitch; body dimensions 1.0 mm × 0.6 mm × 0.47 mm; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines correct orientation for reverse-bias operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms the reference return path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low Test Current Operation | Specified at 50 µA - Enables stable regulation in µA-level bias networks for ultra-low-power IoT sensors |
| Side-Wettable Flanks | Integrated into DFN1006BD-2 - Allows automated optical inspection (AOI) of solder joints without X-ray, improving manufacturing yield |
| Optimized Leakage Profile | Minor intentional rise per AN90031 - Reduces switching noise and improves transient response in feedback loops |
| Automotive Qualification | AEC-Q101 compliant - Supports deployment in engine control units, body electronics, and ADAS subsystems |
| Tight Voltage Tolerance | ±2 % at 50 µA - Eliminates need for post-assembly calibration in precision analog front-ends |
Applications
| Automotive Microcontroller Reset Circuit | Portable Gas Sensor Bias Supply |
|---|---|
Use Scenario: Provides stable 2.0 V reference to reset supervisor ICs monitoring 3.3 V MCU supply rails in vehicle infotainment modules. IC Role / Device Role / Timing Role: Zener voltage reference establishing threshold for reset assertion during brown-out events. Use Value: ±2 % tolerance ensures deterministic reset timing across temperature; AEC-Q101 rating guarantees reliability over 15-year vehicle lifetime. |
Use Scenario: Supplies precise bias voltage to electrochemical gas sensing elements in handheld air quality monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-current voltage regulator setting operating point for sensor transduction circuitry. Use Value: 50 µA test current matches sensor's nanoampere-scale bias requirements, extending battery life beyond 2 years. |
| Industrial PLC Analog Input Protection | Wearable Health Monitor Reference |
Use Scenario: Clamps input amplifier rails against ESD and surge transients in 4–20 mA loop-powered field instruments. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as overvoltage shunt protector on signal conditioning stage. Use Value: 365 mW power rating absorbs 1 kV HBM ESD pulses; side-wettable flanks ensure robust solder joint integrity in high-vibration environments. |
Use Scenario: Generates stable 2.0 V reference for ADC conversion of biopotential signals (ECG/EMG) in Bluetooth-enabled fitness bands. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric measurement architecture. Use Value: −3.5 mV/K temperature coefficient minimizes drift-induced gain error across 0–40 °C wearable operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX8850S-C2V0-Q | ±5 % tolerance vs. ±2 %; identical package, pinout, and thermal specs | Acceptable where cost sensitivity outweighs precision requirement; higher IR at VR = 1.0 V | Select when budget constraints dominate and system-level calibration compensates for wider tolerance. |
| MMSZ4678T1G | 2.0 V nominal, ±5 %, SOD-123 package (2.7 mm × 1.6 mm); 500 mW Ptot; no AEC-Q101 rating | Larger footprint limits high-density layouts; lacks automotive qualification and side-wettable flanks | Choose only for non-automotive, non-space-constrained consumer designs requiring higher power margin. |
Compared with BZX8850S-C2V0-Q, the BZX8850S-B2V0-QYL offers tighter regulation for precision analog stages; versus MMSZ4678T1G, it enables miniaturized, automotive-grade designs with AOI-compatible assembly-critical for safety-critical wearables and vehicle ECUs.
Availability
BZX8850S-B2V0-QYL is available at Aetrix Electronics and suitable for automotive electronics, portable medical devices, and industrial sensor interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for BZX8850S-B2V0-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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for automotive, industrial, and mobile markets.
The BZX8850S-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for low-current, high-precision voltage regulation in space- and power-constrained systems where AEC-Q101 compliance and side-wettable flanks are mandatory.
FAQ
What is the maximum reverse current at 1.0 V for BZX8850S-B2V0-QYL?
At VR = 1.0 V and Tj = 25 °C, the typical reverse current is ≤1.0 µA. This ultra-low leakage supports stable operation in high-impedance bias networks and extends battery life in always-on sensor nodes without compromising regulation accuracy.
Can BZX8850S-B2V0-QYL be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances; paralleling causes current hogging and thermal runaway. For higher power, use a single higher-rated device like BZX8850S-B2V0-QYL's 365 mW-rated variant or add external series resistance to balance current sharing.
Is the marking code 'NK' confirmed for BZX8850S-B2V0-QYL?
Yes-per Table 4 of the datasheet, BZX8850S-B2V0-Q is marked with 'NK' on the top surface of the DFN1006BD-2 package. The bar adjacent to pin 1 indicates the cathode terminal, enabling unambiguous orientation during placement.
Does BZX8850S-B2V0-QYL support reflow soldering per JEDEC J-STD-020?
Yes-it is qualified for standard Pb-free reflow profiles (peak 260 °C, 20–40 s above 217 °C) per the DFN1006BD-2 footprint in Figure 10. Side-wettable flanks enable full solder fillet visibility, satisfying IPC-A-610 Class 2 and Class 3 acceptance criteria.
BZX8850S-B2V0-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):
- 2 V
- Tolerance:
- ±2%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 7 µA @ 1 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-B2V0-QYL FAQ
1.How can I place an order for BZX8850S-B2V0-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850S-B2V0-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-B2V0-QYL reliable?
The price and inventory of BZX8850S-B2V0-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-B2V0-QYL is usually 5 days.
3.What payment methods are accepted for BZX8850S-B2V0-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850S-B2V0-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850S-B2V0-QYL?
BZX8850S-B2V0-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850S-B2V0-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-B2V0-QYL?
For technical support, including BZX8850S-B2V0-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850S-B2V0-QYL requirements.
6.How does Aetrix verify that BZX8850S-B2V0-QYL is sourced from the original manufacturer or authorized distributors?
All BZX8850S-B2V0-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-B2V0-QYL meets industry standards.
7.What is the process for return or replacement of BZX8850S-B2V0-QYL?
All BZX8850S-B2V0-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850S-B2V0-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-B2V0-QYL part is unused and in its original packaging.
Return procedure for BZX8850S-B2V0-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX8850S-B2V0-QYL Tags
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