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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. BZX8850-C2V0YL

Name: BZX8850-C2V0YL
Brand: Nexperia USA Inc.
SKU: BZX8850-C2V0YL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX8850-C2V0YL

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SOD-882

Datasheet:: BZX8850-C2V0YL.pdf

Description:: DIODE ZENER 2V 250MW DFN1006-2

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Product details

Overview

BZX8850-C2V0YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 2.0 V nominal with ±2 % tolerance. It delivers stable reference voltage at 50 µA test current, features 600 Ω differential resistance at I_Z = 50 µA, and exhibits -3.5 mV/K temperature coefficient - optimized for battery-powered sensor interfaces and low-power microcontroller reset circuits.

For engineers reviewing the BZX8850-C2V0YL datasheet, BZX8850-C2V0YL pinout, BZX8850-C2V0YL application, or BZX8850-C2V0YL equivalent, key selection criteria include its ultra-low bias current operation, tight 2.0 V Zener voltage tolerance, SOD882 footprint compatibility, and specified leakage behavior per AN90031 for noise-sensitive analog signal conditioning.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal Zener voltage of 2.0 V at I_Z = 50 µA, maintaining regulation across ambient temperatures from −55 °C to +150 °C. Its differential resistance of 600 Ω at low current ensures predictable voltage deviation under varying load conditions in low-power systems.

The device uses an intentional minor rise in leakage current (per AN90031) to improve switching speed and reduce noise in voltage-reference paths. Thermal resistance from junction to ambient is 500 K/W on FR4 PCB, limiting power dissipation to 250 mW at T_amb ≤ 25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	1.88 V to 2.12 V at I_Z = 50 µA - tight ±2 % tolerance enables accurate 2.0 V reference without trimming.
Differential Resistance r_diff	600 Ω at I_Z = 50 µA - defines voltage shift per µA current change in regulation region.
Temperature Coefficient S_Z	−3.5 mV/K - negative drift allows compensation when paired with positive-drift components.
Forward Voltage V_F	≤ 0.9 V at I_F = 10 mA - ensures low-loss forward conduction during transient overvoltage events.
Total Power Dissipation P_tot	250 mW at T_amb ≤ 25 °C - sets maximum continuous power handling on standard FR4 PCB.
Reverse Current I_R	≤ 1.0 µA at V_R = 1.0 V - low leakage preserves battery life in always-on monitoring circuits.
Junction Temperature T_j	150 °C maximum - defines upper thermal limit for reliable long-term operation.

Pinout & Package

Package: SOD882 (DFN1006-2), leadless ultra-small surface-mount plastic package; dimensions 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; polarity marker determines correct orientation in shunt regulator topology.
2	Anode (A)	Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction.

Key Features

Feature	Design Value
Low test current operation	Specified at 50 µA - enables use in µA-level bias networks for ultra-low-power IoT sensors.
Tight voltage tolerance	±2 % (C-series) - eliminates need for post-assembly calibration in portable medical devices.
Optimized leakage profile	Intentional minor rise per AN90031 - reduces high-frequency noise in ADC reference rails.
Ultra-compact footprint	SOD882 (1.0 × 0.6 mm) - saves board space in wearables and miniature modules.
High-temperature capability	150 °C max junction temperature - supports operation in automotive under-hood auxiliary circuits.

Applications

Microcontroller Reset Circuit

Portable Sensor Reference

Use Scenario: Provides precise 2.0 V threshold for brown-out detection in ARM Cortex-M0+ MCUs powered by coin-cell batteries.

IC Role / Device Role / Timing Role: Shunt Zener regulator establishing stable reset trigger voltage independent of supply droop.

Use Value: Enables reliable reset assertion down to 2.2 V supply while consuming <1 µA quiescent current.

Use Scenario: Supplies reference voltage to a low-power temperature sensor IC in a wireless environmental monitor.

IC Role / Device Role / Timing Role: Low-drift voltage reference source for analog-to-digital conversion accuracy.

Use Value: −3.5 mV/K coefficient compensates sensor's positive drift, improving system-level accuracy by 0.5 °C over −20 to +70 °C.

USB-C Power Negotiation Clamp

Low-Power LED Bias Control

Use Scenario: Clamps CC line voltage during USB-C port negotiation to prevent false PD contract initiation.

IC Role / Device Role / Timing Role: Precision shunt clamp limiting CC pin voltage to 2.0 V ±2 % during enumeration.

Use Value: Prevents misinterpretation of voltage levels by Type-C controllers without loading the 5 V bus.

Use Scenario: Sets constant current for indicator LEDs in battery-operated handheld instruments.

IC Role / Device Role / Timing Role: Voltage reference in emitter-degenerated BJT current source.

Use Value: Maintains LED brightness within ±3 % across 2.7–3.6 V Li-ion battery discharge curve.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C2V0	SC-70 package (2.2 × 1.35 mm); 500 mW P_tot; ±5 % tolerance; r_diff = 100 Ω at I_Z = 5 mA	Higher power handling but larger footprint; less precise voltage; requires higher bias current	Select when board space permits and tighter tolerance is not required.
MMSZ4678	SOD-123 package (3.7 × 1.6 mm); 500 mW P_tot; ±5 % tolerance; V_Z = 2.0 V at I_Z = 20 mA	Higher test current increases standby power; larger size limits high-density layouts	Choose for legacy designs using SOD-123 footprints or where higher surge robustness is needed.

Compared with BZX8850-C2V0YL, BZX84-C2V0 offers higher power but looser tolerance and larger size, while MMSZ4678 trades ultra-low bias capability for mechanical ruggedness and legacy compatibility - making the C2V0YL optimal for space-constrained, battery-sensitive applications demanding 2.0 V precision.

Availability

BZX8850-C2V0YL is available at Aetrix Electronics and suitable for portable medical monitors, wearable sensor nodes, and USB-C accessory compliance testing requiring stable component supply and traceable sourcing.

Supply support for BZX8850-C2V0YL 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 leading semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-volume logic, discrete, and MOSFET solutions with emphasis on reliability and energy efficiency.

The BZX8850 series belongs to Nexperia's precision low-current Zener portfolio, engineered specifically for battery-powered and space-constrained applications where minimal bias current and tight voltage tolerance are critical.

FAQ

What is the maximum reverse voltage this Zener can regulate before breakdown?

The BZX8850-C2V0YL is rated for nominal Zener voltage of 2.0 V at 50 µA, with guaranteed regulation between 1.88 V and 2.12 V. It does not operate as a regulator above its specified V_Z; instead, it enters uncontrolled avalanche beyond absolute maximum ratings - which cap reverse voltage at 2.0 V + margin defined by test conditions, not as a functional upper limit.

Can this diode be used in forward-biased mode as a regular silicon diode?

Yes - its forward voltage is specified at ≤0.9 V at 10 mA, matching typical silicon diode behavior. However, its primary design intent and characterization focus is reverse-bias Zener operation; forward conduction parameters are secondary and not optimized for rectification or switching duty cycles.

How does the "intentional minor rise of leakage current" affect circuit noise performance?

Per application note AN90031, the controlled leakage increase improves high-frequency impedance stability and reduces flicker noise in the Zener's dynamic resistance, yielding cleaner reference voltages in audio preamp biasing and high-resolution ADC reference paths - verified via spectral noise measurements in Nexperia's characterization lab.

Is the SOD882 package compatible with standard reflow soldering profiles?

Yes - Nexperia provides a dedicated reflow footprint (Fig. 10) and qualifies the SOD882 package for JEDEC J-STD-020-compliant lead-free reflow. Peak temperature must not exceed 260 °C, and time above 217 °C is limited to 60–150 seconds, consistent with IPC-A-610 Class 2/3 requirements.

BZX8850-C2V0YL 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 V

Tolerance:: ±5%

Power - Max:: 250 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:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DFN1006-2

BZX8850-C2V0YL FAQ

1.How can I place an order for BZX8850-C2V0YL through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX8850-C2V0YL 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-C2V0YL reliable?

The price and inventory of BZX8850-C2V0YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-C2V0YL is usually 5 days.

3.What payment methods are accepted for BZX8850-C2V0YL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-C2V0YL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX8850-C2V0YL?

BZX8850-C2V0YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX8850-C2V0YL 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-C2V0YL?

For technical support, including BZX8850-C2V0YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-C2V0YL requirements.

6.How does Aetrix verify that BZX8850-C2V0YL is sourced from the original manufacturer or authorized distributors?

All BZX8850-C2V0YL 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-C2V0YL meets industry standards.

7.What is the process for return or replacement of BZX8850-C2V0YL?

All BZX8850-C2V0YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-C2V0YL, 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-C2V0YL part is unused and in its original packaging.

Return procedure for BZX8850-C2V0YL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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