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B82559A1042A025 - TDK

Description: Epcos B82559A Series Shielded Wire-wound SMD Inductor with a Ferrite Core, 440 nH ±7% Wire-Wound/002

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B82559A1042A025 Details

  • Manufacturer Part Number:

    B82559A1042A025

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    CHIP

  • Country Of Origin:

    India, Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8504.50.80.00

  • Manufacturer:

    TDK Corporation

  • YTEOL:

    7.4

  • Construction:

    Rectangular

  • Core Material:

    FERRITE

  • DC Resistance:

    0.00025 Ω

  • Inductance-Nom (L):

    0.44 µH

  • Inductor Application:

    RF INDUCTOR

  • Inductor Type:

    GENERAL PURPOSE INDUCTOR

  • JESD-609 Code:

    e3

  • Number of Functions:

    1

  • Number of Terminals:

    2

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Height:

    9.6 mm

  • Package Length:

    25.3 mm

  • Package Style:

    SMT

  • Package Width:

    23.5 mm

  • Packing Method:

    Tray

  • Rated Current-Max:

    71 A

  • Self Resonance Frequency:

    2 MHz

  • Shape/Size Description:

    RECTANGULAR PACKAGE

  • Shielded:

    YES

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin (Sn)

  • Terminal Placement:

    DUAL ENDED

  • Terminal Shape:

    WRAPAROUND

  • Test Frequency:

    0.01 MHz

  • Tolerance:

    7%

B82559A1042A025 Frequently Asked Questions (FAQs)

  • TDK recommends a symmetrical PCB layout with a ground plane underneath the inductor to minimize electromagnetic interference (EMI) and ensure optimal performance. A minimum of 1.5 mm clearance around the inductor is also recommended.
  • The B82559A1042A025 is designed to handle high-frequency switching up to 2 MHz. However, it's essential to consider the skin effect, proximity effect, and core losses when operating at high frequencies. TDK provides a Spice model and simulation tools to help engineers optimize their design.
  • The maximum allowable voltage across the inductor is 25 V, as specified in the datasheet. Exceeding this voltage may lead to reduced reliability, increased core losses, or even inductor failure.
  • The inductor's performance is affected by temperature, with a maximum operating temperature of 125°C. As temperature increases, the inductor's inductance and Q-factor may decrease, while core losses may increase. TDK provides temperature derating curves to help engineers design for temperature-related effects.
  • TDK recommends a reflow soldering process with a peak temperature of 260°C and a dwell time of 30 seconds. Hand soldering is not recommended due to the risk of overheating the inductor.

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B82559A1042A025 Overview

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About TDK

TDK-Lambda is a global supplier of power supplies and related products. It is a subsidiary of TDK Corporation, a leading electronics company based in Japan. TDK-Lambda specializes in designing and manufacturing a wide range of AC-DC power supplies, DC-DC converters, programmable power supplies, and EMC/EMI filters for various industries and applications.

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Part Image B82559A1042A025 TDK Electronics

General Purpose Inductor, 0.44uH, 7%, 1 Element, Ferrite-Core, SMD