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Signal & Power Integrity Components Business EMI & Surge Components & Modules

Motor Line Feed-Through (MLFT) Filters Patent Pending

  • Easy installation, provides a connector interface
  • Excellent EMI filtering through GHz range
  • Competitive cost
  • Space saving EMI solution
  • Fewer electrical connections
  • Failsafe DC open circuit for safety concerns
  • Custom filtering and mechanical packages available
  • Transient voltage supression

Spectrum Advanced Specialty Products, the established world leader in EMC, has developed a new family of high capacitance filters designed for various DC motor applications in high volume automotive, medical, industrial and telecommunications markets. The Motor Line Feed-Through (MLFT) filter is a one-component solution that eliminates the need for multiple capacitors, inductive coils, leads and PCB assemblies requiring numerous electrical connections and large amounts of space. MLFT filters (patent pending) are engineered to provide the required EMI filtering and mechanical interface at a reduced cost.

Insertion Loss

Low Pass MLFT Filters Insertion Loss Chart

MLFT filters offer significant insertion loss to pass global conductive and radiated EMC tests, such as CISPR 25. Our standard line of filters can be designed into mechanical packages for easy retrofit into existing designs or as custom assemblies to simplify installation during production. These filters are available in stamped or threaded housings, with single or dual lines, and round leads or Faston terminals for applications to 100 volts (consult factory for higher voltages).

Low Pass MLFT Filters
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MLFT Filter Datasheet
Filter Installation Guide
Performance Testing Datasheet
Military Cross Reference
Low Pass EMI Filter Catalog
Selector Guide

Circuit Configurations

MLFT C FilterC Filter

MLFT Specifications

Click on an MLFT filter in the diagram below to view it's drawing

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Dimensions Per Termination

  A B C
.062 Round Lead .765 (19.43) .295 (7.49) .062 (1.57)
.110 Faston .740 (18.79) .320 (8.13) .020 (0.51)

Single Line Stamped Drawing

Single Line Stamped MLFT Filter Drawing

Dual Line Stamped Drawing

Dual Line Stamped MLFT Filter Drawing

Single Line Threaded Drawing

Single Line Threaded MLFT Filter Drawing