Please enter a minimum 3 letters or numbers
Technical Content
Part Image

CST2-125LB - COILCRAFT

Description: Current Transformers CST2 1:125 20A 3KuH AEC-Q200

Download CST2-125LB Model
Schematic
symbols
Schematic symbol is unavailable for download
PCB
footprints
PCB footprint is unavailable for download
3D
models
3D model is unavailable for download
Send part feedback
Symbol
CST2-125LB - COILCRAFT - PCB symbol
click to zoom
PCB Footprints
CST2-125LB - COILCRAFT PCB footprint - Other - Other - CST2-125LB-2
click to zoom
3D Models
CST2-125LB - COILCRAFT - 3D model - Other - CST2-125LB-2
click to zoom

CST2-125LB Details

  • Manufacturer Part Number:

    CST2-125LB

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • ECCN Code:

    EAR99

  • Manufacturer:

    Coilcraft Inc

  • YTEOL:

    0

  • Additional Feature:

    HEIGHT DIM INCLUDES TERMINAL ALSO

  • Application:

    SIGNAL

  • Approvals:

    AEC-Q200

  • ET Product-Min:

    67.5 V-us

  • Height:

    5.3 mm

  • Isolation Voltage:

    500 V

  • JESD-609 Code:

    e3

  • Length:

    6.22 mm

  • Load Resistance:

    6.3 Ω

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Primary Winding:

    1

  • Number of Secondary Winding:

    1

  • Operating Frequency-Max:

    1000 kHz

  • Operating Frequency-Min:

    7 kHz

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Packing Method:

    TR

  • Peak Primary Current:

    20 A

  • Primary Inductance:

    3000 µH

  • Primary Type:

    WOUND PRIMARY

  • Secondary Inductance:

    3000 µH

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn) - with Nickel (Ni) barrier

  • Transformer Type:

    CURRENT SENSE TRANSFORMER

  • Turns Ratio (Np:Ns):

    1:125

  • Width:

    5.97 mm

CST2-125LB Frequently Asked Questions (FAQs)

  • The recommended land pattern for the CST2-125LB is a rectangular pad with a size of 2.5 mm x 1.5 mm, with a non-solder mask defined (NSMD) pad shape. This is specified in the Coilcraft Inc. application note AN-40.
  • The CST2-125LB is rated for operation up to 125°C, but it's recommended to derate the current rating by 1.5% per degree Celsius above 80°C. For high-temperature applications, consider using a high-temperature-rated inductor like the Coilcraft HTP series.
  • Handle the CST2-125LB by the body, avoiding touching the leads or core. Use a vacuum pickup or tweezers to place the component on the PCB. Avoid bending or flexing the leads, and ensure the component is properly seated on the PCB to prevent damage during reflow soldering.
  • The ESR of the CST2-125LB is not explicitly stated in the datasheet, but it can be estimated using the Q factor and inductance values. A rough estimate of ESR is around 0.1-0.2 ohms at 100 kHz. For more accurate calculations, consult the Coilcraft Inc. application note AN-13.
  • Yes, the CST2-125LB is suitable for switching regulator applications due to its low core loss and high saturation current rating. However, ensure the inductor is properly selected based on the switching frequency, output current, and voltage requirements of the regulator.

Trust Checks

This model has been provided by an expert contributor.
Expert Contribution
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored

CST2-125LB Overview

Use the download button to access the CST2-125LB schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like CST2-, or try a keyword search, such as Current Sense Transformers

About COILCRAFT

Colicraft designs and manufactures high performing magnectic components, RF chip inductors, power magnectics, and filters. Coilcraft has engineering, manufacturing, and distribution facilities in North America, Asia, and Europe.

Parts related to CST2-125LB

Showing 0 results

Part Image

← Prev Next →
About Us Contact Us Terms of Service Do not sell or share my personal information Privacy Policy Digital Services Act Library Loader Twitter LinkedIn

All content Copyright © 2020, Supplyframe.com. All rights reserved. Back to top ↑

CST2-125LB Alternates

Showing results

Image Part Number Model
Part Image CST2-125SB Coilcraft Inc

Current Sense Transformer, 20A, 1:125