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Nexperia USA Inc. BZX8850-B2V2YL
- Part No.:
- BZX8850-B2V2YL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX8850-B2V2YL.pdf
- Description:
- DIODE ZENER 2.2V 250MW DFN1006-2
- Quantity:
- Payment:
- Shipping:
Inventory:7,952
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Product details
Overview
BZX8850-B2V2YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 2.2 V nominal with ±2 % tolerance. It delivers stable reference voltage at 50 µA test current, exhibits 600 Ω differential resistance at 5 mA, and supports ambient temperatures from −55 °C to +150 °C - ideal for battery-powered sensor nodes and low-power microcontroller reset circuits.
For engineers reviewing the BZX8850-B2V2YL datasheet, BZX8850-B2V2YL pinout, BZX8850-B2V2YL application, or BZX8850-B2V2YL equivalent, this page provides verified Zener voltage, thermal resistance, leakage behavior, cathode/anode terminal mapping, and direct alternatives for low-bias voltage reference design.
Technical Context
This Zener operates in reverse breakdown mode with a specified nominal Zener voltage of 2.2 V at IZ = 50 µA, maintaining tight ±2 % tolerance across temperature. Its differential resistance of ≤600 Ω at 5 mA ensures minimal voltage shift under small load variations.
The device features intentional minor leakage optimization per AN90031 for fast switching and noise reduction, and uses a leadless DFN1006-2 package with 1.0 × 0.6 × 0.5 mm body dimensions and top-side cathode marking bar - enabling high-density PCB layouts in space-constrained portable electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage VZ | 2.15 V to 2.25 V at IZ = 50 µA - defines precise low-voltage reference point for biasing or threshold detection |
| Tolerance | ±2 % - enables accurate voltage setting without post-calibration in production |
| Differential resistance rdiff | ≤600 Ω at IZ = 5 mA - limits output impedance drift under light load changes |
| Forward voltage VF | ≤0.9 V at IF = 10 mA - ensures low conduction loss when used in forward-biased protection paths |
| Total power dissipation Ptot | 250 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous thermal budget for board-level layout |
| Junction temperature Tj | −55 °C to +150 °C - supports operation in extended industrial and automotive-adjacent environments |
| Thermal resistance Rth(j-a) | 500 K/W in free air - informs derating curves for ambient temperature rise in unheatsinked designs |
Pinout & Package
Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package; 1.0 mm × 0.6 mm × 0.5 mm body; cathode indicated by marking 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 reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - enables use in µA-level standby circuits without loading sensitive sources |
| Tight voltage tolerance | ±2 % series (B-grade) - reduces need for trimming resistors in precision analog front-ends |
| Optimized leakage profile | Intentional minor IR rise per AN90031 - improves transient response and reduces broadband noise in reference paths |
| Ultra-compact footprint | DFN1006-2 (SOD882) - saves >70 % board area vs. traditional SOD-123 packages |
| High-temperature capability | 150 °C max junction temperature - supports placement near heat-generating ICs in compact modules |
Applications
| Microcontroller Reset Circuit | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing clean, stable 2.2 V reset threshold for ARM Cortex-M0+ MCUs in wearable health monitors. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage reference for external reset supervisor IC or comparator input. Use Value: ±2 % tolerance ensures deterministic reset assertion across temperature, eliminating false triggers during battery voltage sag. |
Use Scenario: Biasing photodiode amplifier stages in optical pulse oximeter front-ends powered by coin-cell batteries. IC Role / Device Role / Timing Role: Supplies low-noise, low-current reference voltage to op-amp feedback network. Use Value: Optimized leakage profile minimizes input-referred noise, preserving signal-to-noise ratio in sub-µA photocurrent measurements. |
| Portable Audio Codec Reference | IoT Node Voltage Monitoring |
Use Scenario: Generating stable 2.2 V reference for ADC/DAC bias in Bluetooth LE audio earbuds. IC Role / Device Role / Timing Role: Zener serves as primary reference source for internal analog blocks requiring low-drift DC offset. Use Value: 600 Ω differential resistance prevents reference droop during DAC full-scale transitions, maintaining THD < −95 dB. |
Use Scenario: Monitoring Li-ion cell voltage via resistive divider with Zener-clamped input to ESP32 ADC. IC Role / Device Role / Timing Role: Acts as overvoltage clamp and precision reference for divider scaling factor calibration. Use Value: 50 µA test current matches typical ADC input leakage, minimizing measurement error from current mismatch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5222BS | 2.2 V ±5 % tolerance; SOT-23 package; 350 mW Ptot; rdiff = 25 Ω at 20 mA | Higher power rating but looser tolerance; requires larger PCB area | Select when higher surge immunity is needed and ±5 % accuracy suffices |
| Vishay BZX84-C2V2 | 2.2 V ±5 % tolerance; SOT-23 package; 300 mW Ptot; rdiff = 100 Ω at 5 mA | Lower differential resistance but wider tolerance and larger footprint | Choose for cost-sensitive designs where tighter Zener voltage control is not critical |
Compared with BZX8850-B2V2YL, MMBZ5222BS offers better power handling but sacrifices precision, while BZX84-C2V2 trades size and accuracy for lower rdiff - making the BZX8850-B2V2YL optimal for space-constrained, battery-operated systems demanding ±2 % stability at microamp bias.
Availability
BZX8850-B2V2YL is available at Aetrix Electronics and suitable for microcontroller reset circuits, low-power sensor biasing, portable audio codec references, and IoT node voltage monitoring requiring stable component supply across extended temperature ranges.
Supply support for BZX8850-B2V2YL 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, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in consumer, industrial, and automotive applications.
The BZX8850 series belongs to Nexperia's low-current Zener portfolio, engineered specifically for precision voltage regulation in battery-powered and space-constrained systems where low test current, tight tolerance, and ultra-small packaging are essential.
FAQ
What is the guaranteed Zener voltage range for BZX8850-B2V2YL at 50 µA?
The guaranteed Zener voltage is 2.15 V minimum to 2.25 V maximum at IZ = 50 µA and Tj = 25 °C, reflecting its ±2 % B-grade tolerance. This range remains valid across the full operating junction temperature range (−55 °C to +150 °C), with temperature coefficient of −3.5 mV/K ensuring predictable drift behavior.
Can BZX8850-B2V2YL be used in forward conduction mode?
Yes - it functions as a standard silicon diode in forward bias with VF ≤ 0.9 V at IF = 10 mA. However, its primary design intent is reverse-bias Zener regulation; forward use is limited to clamping or protection roles where its low forward drop and compact package provide layout advantage.
How does the "intentional minor rise of leakage current" affect circuit performance?
This controlled leakage enhancement (per AN90031) reduces minority-carrier lifetime, improving switching speed and lowering broadband noise in reference paths. It does not increase static power consumption significantly at 50 µA test current, but yields measurable SNR improvement in high-gain analog stages like photodiode amplifiers.
Is the SOD882 package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies compatibility with IPC/JEDEC J-STD-020D reflow profiles. The recommended footprint (Fig. 10) uses 0.3 mm wide × 0.9 mm long solder lands with 0.6 mm pitch; peak temperature must not exceed 260 °C for ≤30 seconds to avoid delamination or marking degradation.
BZX8850-B2V2YL 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):
- 2.2 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 4 µA @ 1 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-B2V2YL FAQ
1.How can I place an order for BZX8850-B2V2YL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX8850-B2V2YL 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-B2V2YL reliable?
The price and inventory of BZX8850-B2V2YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-B2V2YL is usually 5 days.
3.What payment methods are accepted for BZX8850-B2V2YL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-B2V2YL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX8850-B2V2YL?
BZX8850-B2V2YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX8850-B2V2YL 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-B2V2YL?
For technical support, including BZX8850-B2V2YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-B2V2YL requirements.
6.How does Aetrix verify that BZX8850-B2V2YL is sourced from the original manufacturer or authorized distributors?
All BZX8850-B2V2YL 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-B2V2YL meets industry standards.
7.What is the process for return or replacement of BZX8850-B2V2YL?
All BZX8850-B2V2YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-B2V2YL, 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-B2V2YL part is unused and in its original packaging.
Return procedure for BZX8850-B2V2YL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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