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B78417A2185A003 - TDK

Description: Current Sense Transformers, Sensed Current=20A max, TR=1:100

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B78417A2185A003 - TDK - PCB symbol
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B78417A2185A003 Details

  • Manufacturer Part Number:

    B78417A2185A003

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • ECCN Code:

    EAR99

  • Manufacturer:

    TDK Corporation

  • YTEOL:

    9

  • Additional Feature:

    HEIGHT DIM INCLUDE TERMINAL ALSO

  • Approvals:

    AEC-Q200; IEC; CUL; UL

  • ET Product-Min:

    233 V-us

  • Height:

    11 mm

  • JESD-609 Code:

    e3

  • Length:

    10.6 mm

  • Load Resistance:

    5 Ω

  • Mounting Feature:

    SURFACE MOUNT

  • Operating Frequency-Max:

    500 kHz

  • Operating Frequency-Min:

    50 kHz

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Packing Method:

    TR, BLISTER, 13 INCH

  • Peak Primary Current:

    20 A

  • Primary Type:

    WOUND PRIMARY

  • Secondary Inductance:

    7000 µH

  • Surface Mount:

    YES

  • Terminal Finish:

    Tin (Sn)

  • Transformer Type:

    CURRENT SENSE TRANSFORMER

  • Turns Ratio (Np:Ns):

    1:100

  • Width:

    9.7 mm

B78417A2185A003 Frequently Asked Questions (FAQs)

  • TDK recommends a symmetrical PCB layout with a ground plane underneath the inductor to minimize radiation and ensure optimal performance. A minimum of 1.5 mm clearance around the inductor is recommended to prevent electromagnetic interference.
  • The B78417A2185A003 is rated for operation up to 125°C, but its inductance value may decrease by up to 20% at high temperatures. Engineers should consider this when designing for high-temperature applications.
  • TDK recommends a soldering profile with a peak temperature of 260°C for 10 seconds or less to prevent damage to the inductor. A soldering iron with a temperature range of 350°C to 400°C is recommended.
  • The B78417A2185A003 is designed to withstand vibrations up to 10 G (10 Hz to 2 kHz). However, engineers should consider additional mechanical support or potting to ensure the inductor remains securely in place.
  • The B78417A2185A003 is designed to handle high-current surges, but its inductance value may decrease temporarily during the surge event. Engineers should consider adding overcurrent protection to prevent damage to the inductor.

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B78417A2185A003 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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