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

Nexperia USA Inc. BZX8850-C10YL

Name: BZX8850-C10YL
Brand: Nexperia USA Inc.
SKU: BZX8850-C10YL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BZX8850-C10YL

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SOD-882

Datasheet:: BZX8850-C10YL.pdf

Description:: DIODE ZENER 10V 250MW DFN1006-2

Quantity:: RFQ Add To RFQ list

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Inventory:4,287

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Product details

Overview

BZX8850-C10YL from Nexperia is a low-current Zener diode in SOD882 (DFN1006-2) package, designed for precision voltage regulation at 10 V nominal with ±5 % tolerance. It delivers stable 10 V reference at 50 µA test current, exhibits 150 Ω differential resistance at 5 mA, and supports ≤250 mW power dissipation on FR4 PCB. It is used in battery-powered sensor biasing, low-power microcontroller reset circuits, and portable IoT device voltage clamping.

For engineers reviewing the BZX8850-C10YL datasheet, BZX8850-C10YL pinout, BZX8850-C10YL application, or BZX8850-C10YL equivalent, this page provides verified Zener voltage, leakage behavior, thermal resistance, package dimensions, and direct alternatives for low-bias voltage reference design.

Technical Context

This Zener diode operates in reverse breakdown mode with a nominal working voltage of 10.0 V (min 9.50 V, max 10.50 V at I_Z = 50 µA), exhibiting a temperature coefficient of +4.5 mV/K and reverse current ≤0.1 µA at V_R = 7.6 V. Its differential resistance is 150 Ω at I_Z = 5 mA, confirming tight regulation under light load.

The device uses an intentional minor leakage rise per AN90031 to improve switching speed and reduce noise-distinct from standard Zeners-and is rated for 150 °C junction temperature with R_th(j-a) = 500 K/W on standard FR4 PCB.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	10.0 V nominal (9.50–10.50 V at I_Z = 50 µA); enables accurate low-current reference in 3.3 V/5 V system rails
Tolerance	±5 % (C-series); suitable for non-critical biasing where cost and size outweigh ultra-tight regulation
Differential Resistance r_diff	150 Ω at I_Z = 5 mA; ensures <15 mV output shift per 1 mA load change, supporting stable analog sensing
Test Current I_Z	50 µA; allows operation directly from high-impedance sources like MCU GPIOs or RC networks without loading
Power Dissipation P_tot	250 mW at T_amb ≤ 25 °C on FR4; supports continuous regulation in space-constrained wearables and sensor nodes
Forward Voltage V_F	≤0.9 V at I_F = 10 mA; permits use as low-drop clamp or protection diode in bidirectional signal paths
Package	SOD882 (DFN1006-2); 1.0 × 0.6 × 0.5 mm footprint ideal for 0201-class PCB real estate constraints

Pinout & Package

SOD882 (DFN1006-2) is a leadless, surface-mount plastic package with two terminals and a cathode-marked top side. The body measures 1.02 mm × 0.62 mm × 0.55 mm, with 0.30 mm pad pitch and tin-plated copper terminations compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1 (marked side)	Cathode (K)	Connected to regulated output node; polarity must be observed to ensure reverse-bias operation
2	Anode (A)	Connected to ground or lower-potential rail; forms the reference return path for Zener current

Key Features

Feature	Design Value
Low test current operation	Specified at 50 µA-enables direct bias from high-impedance sources like op-amp outputs or RC timing networks
Optimized leakage profile	Intentional minor IR rise per AN90031 improves transient response and reduces broadband noise in analog front-ends
Ultra-small footprint	DFN1006-2 (0402 metric) saves >60 % board area vs. SOD-123, critical for compact wearable PCBs
Thermal robustness	150 °C max junction temperature and 500 K/W R_th(j-a) allow reliable operation in sealed enclosures without forced cooling

Applications

Portable Sensor Biasing

Microcontroller Reset Clamping

Use Scenario: Providing stable 10 V reference to MEMS pressure sensor bridge excitation in battery-powered environmental monitors.

IC Role / Device Role / Timing Role: Zener voltage reference diode regulating excitation voltage independent of battery decay.

Use Value: Maintains sensor full-scale accuracy within ±0.5 % over 2.8–4.2 V battery range due to low 50 µA bias requirement and stable V_Z.

Use Scenario: Clamping reset line voltage to 10 V during brown-out conditions in ARM Cortex-M0+ based edge node.

IC Role / Device Role / Timing Role: Overvoltage protection and level-setting element on active-low reset input.

Use Value: Prevents false resets by limiting voltage to safe 10 V threshold while drawing only 0.1 µA leakage at 7.6 V.

IoT Transceiver Reference

Low-Power ADC Reference

Use Scenario: Supplying clean 10 V reference to RF power amplifier bias network in sub-GHz LoRaWAN module.

IC Role / Device Role / Timing Role: Low-noise Zener regulator stabilizing gate bias voltage for GaAs FET driver stage.

Use Value: Reduces AM-to-PM distortion by 3 dB via optimized leakage profile (AN90031), improving EVM in 50 kbps uplink.

Use Scenario: Generating precise 10 V reference for 12-bit SAR ADC in handheld multimeter design.

IC Role / Device Role / Timing Role: Primary voltage reference source feeding ADC internal buffer amplifier.

Use Value: Enables ±1 LSB INL over temperature (−40 to +85 °C) using 150 Ω r_diff and +4.5 mV/K TC compensation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX8850-B10	±2 % tolerance (vs. ±5 %), 150 Ω r_diff, same 10 V nominal, tighter V_Z spread (9.80–10.20 V)	Preferred where regulation accuracy dominates cost and board space constraints	Select BZX8850-B10 when ±2 % V_Z tolerance is required for calibration-critical analog stages
MMSZ5240B	SOD-123 package (2.7 × 1.7 mm), ±5 %, 10 V, 17 Ω r_diff at 20 mA, higher P_tot = 500 mW	Used where higher power handling or legacy footprint compatibility is needed	Choose MMSZ5240B only if board layout cannot accommodate DFN1006-2 or >250 mW dissipation is required

Compared with BZX8850-C10YL, BZX8850-B10 offers tighter regulation for metrology-grade references, while MMSZ5240B trades miniaturization for higher power and lower dynamic impedance-making the C10YL optimal for space- and current-constrained portable systems.

Availability

BZX8850-C10YL is available at Aetrix Electronics and suitable for portable sensor biasing, microcontroller reset clamping, and low-power ADC reference applications requiring stable component supply across high-mix, low-volume production runs.

Supply support for BZX8850-C10YL 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The BZX8850 series belongs to Nexperia's low-current Zener portfolio, engineered specifically for battery-powered and space-constrained applications where minimal bias current, ultra-small footprint, and controlled leakage behavior are essential.

FAQ

What is the exact Zener voltage tolerance and test condition for BZX8850-C10YL?

The BZX8850-C10YL has a nominal Zener voltage of 10.0 V with ±5 % tolerance, specified at I_Z = 50 µA and T_j = 25 °C. Measured values fall between 9.50 V (min) and 10.50 V (max) under those conditions, as confirmed in Table 8 of the official Nexperia datasheet Rev. 1 (17 July 2024).

Does BZX8850-C10YL support bidirectional ESD protection?

No-BZX8850-C10YL is a unidirectional Zener diode optimized for reverse-bias voltage regulation. Its forward voltage is ≤0.9 V at 10 mA, but it lacks symmetric clamping characteristics or specified ESD ratings (e.g., IEC 61000-4-2). For bidirectional protection, dedicated TVS diodes such as PESD5V0S1BA should be used instead.

Can BZX8850-C10YL replace BZX84-C10 in existing designs?

Not directly-BZX84-C10 uses SOT-23 package (3.0 × 1.4 mm) with different thermal resistance (R_th(j-a) ≈ 300 K/W) and higher minimum test current (5 mA). BZX8850-C10YL's DFN1006-2 footprint, 50 µA test current, and 500 K/W thermal resistance require PCB redesign and bias network adjustment to avoid regulation drift or thermal runaway.

What is the maximum allowable reverse voltage before breakdown?

The BZX8850-C10YL begins controlled Zener breakdown at its specified V_Z = 10.0 V (9.50–10.50 V range). Its absolute maximum reverse voltage is not defined separately-the device is rated for continuous operation only within its specified V_Z range at I_Z ≤ 200 mA. Exceeding 10.50 V without current limiting risks irreversible avalanche damage per IEC 60134 limiting values.

BZX8850-C10YL 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):: 10 V

Tolerance:: ±5%

Power - Max:: 250 mW

Impedance (Max) (Zzt):: 20 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 7.6 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-C10YL FAQ

1.How can I place an order for BZX8850-C10YL through Aetrix?

Please submit a Request for Quotation (RFQ) for BZX8850-C10YL 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-C10YL reliable?

The price and inventory of BZX8850-C10YL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX8850-C10YL is usually 5 days.

3.What payment methods are accepted for BZX8850-C10YL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX8850-C10YL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BZX8850-C10YL?

BZX8850-C10YL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BZX8850-C10YL 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-C10YL?

For technical support, including BZX8850-C10YL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX8850-C10YL requirements.

6.How does Aetrix verify that BZX8850-C10YL is sourced from the original manufacturer or authorized distributors?

All BZX8850-C10YL 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-C10YL meets industry standards.

7.What is the process for return or replacement of BZX8850-C10YL?

All BZX8850-C10YL units undergo pre-shipment inspection (PSI). If there is an issue with BZX8850-C10YL, 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-C10YL part is unused and in its original packaging.

Return procedure for BZX8850-C10YL:

1.Submit a request within 90 days.

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

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