CM1812 Series

Low Frequency Common Mode Chokes

Product Description

Laird chokes exhibit superior impedance performance well into the 100 kHz range and below. The internal construction of these chokes are of wound toroidal fashion. They use a large number of cable pairs twisted or non-twisted. This configuration reduces RFI and crosstalk associated with balanced wire found in most common chokes. With typical peak impedances ranging from 2 kohms to 13 kohms in the frequency ranges of 18 to 80 MHz these chokes are prefect for suppressing noisy common mode signal lines.

CM1812 Series

Industries

  1. Automotive
  2. Automotive and Industrial Electronics
  3. Consumer Electronics
  4. Data Infrastructure
  5. Datacom
  6. Energy & Utilities
  7. Healthcare / Medical
  8. Industrial Electronics
  9. IT
  10. Networking
  11. Printers
  12. Telecommunications
  13. Wireless

Applications

  1. For Low Frequency Signal Lines
  2. For Signal Lines

Features and Benefits

  1. Rohs compliant
  2. Wire Wound Surface Mount common mode filter
  3. Operating temperature range: –40 to +125°C
  4. For low frequency noise suppression

Capabilities

  1. Automated Packaging
  2. Custom Automation
  3. Custom Product Development
  4. Prototyping
  5. Service
  6. Testing

Technical Specification

  • Typical Properties
    Mounting Type
    SMT
    Number of Lines
    2
    Operating Temperature Max (Celsius)
    125
    Operating Temperature Min (Celsius)
    -40
  • Electrical Properties
    DCR (Ω) Max Max
    0.50000
    DCR (Ω) Max Min
    0.50000
    Filter Type 1
    Signal Line
    Impedance (Ohm) at 1 MHz Max
    370
    Impedance (Ohm) at 1 MHz Min
    370
    Impedance (Ohm) at 10 MHz Max
    1900
    Impedance (Ohm) at 10 MHz Min
    1900
    Impedance (Ohm) at 100 MHz Max
    2800
    Impedance (Ohm) at 100 MHz Min
    2800
    Impedance (Ohm) at 4 MHz Max
    1100
    Impedance (Ohm) at 4 MHz Min
    1100
    Peak Impedance Freq. (MHz) Max
    50
    Peak Impedance Freq. (MHz) Min
    50
    RATED CURRENT (A) Max Max
    0.200
    RATED CURRENT (A) Max Min
    0.200
    RATED CURRENT (A) Max Min
    0.200
    Typical Peak Impedance (Ω) Max
    3500
    Typical Peak Impedance (Ω) Min
    3500
  • Dimensions
    Height/Thickness (inches) Max
    0.219
    Height/Thickness (inches) Min
    0.219
    Height/Thickness (mm) Max
    5.55
    Height/Thickness (mm) Min
    5.55
    Length (Inches) Max
    0.197
    Length (Inches) Min
    0.197
    Length (mm) Max
    5.00
    Length (mm) Min
    5.00
    Width (inches) Max
    0.138
    Width (inches) Min
    0.138
    Width (mm) Max
    4.00
    Width (mm) Min
    4.00
  • Compliance
    ROHS Compliant
    Yes
Showing 1 (of 1) Parts
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Part NumberPart NameImpedance (Ohm) at 100 MHzImpedance (Ohm) at 10 MHzRated Current (A) MaxDCR (Ω) MaxLength (mm)Width(mm)Height/Thickness (mm)
CM1812C282R-10Low Frequency Common Chokes
2800.00
1900.00
0.20
0.50
5.00
4.00
5.55
Datasheet
6 distributors

Documents

MCP Catalog-EMI Filtering and RF Inductor Sep 2020 Last updated 04/22/21 Laird MCP REACH Certificate of Compliance Last updated 01/12/22 Laird MCP ROHS Certificate of Compliance Last updated 12/27/21