CMF4-2503HCLF

Common Mode Chokes Overview

The CMF4-2503HCLF is a horizontal PC mount epoxy-potted common mode choke manufactured by Gowanda Electronics. It features an inductance of 250 µH at 10 kHz and supports a maximum current rating of 10 A. The component exhibits a maximum DC resistance (DCR) of 6 mOhm. Designed for through-hole mounting, it operates within a temperature range of -55°C to 125°C. The physical dimensions are 1.098 inches L x 1.098 inches W (27.90 mm x 27.90 mm). This two-line power line filter is RoHS compliant and suitable for demanding industrial applications.

Common Mode Chokes Feature Summary

• Epoxy-potted construction for environmental protection and mechanical stability
• Horizontal printed circuit board mounting configuration
• Dual-line power line filtering capability
• High current handling capacity with low DC resistance

Common Mode Chokes Applications

• Industrial power supply noise suppression
• Electromagnetic interference (EMI) filtering in heavy machinery
• Power line conditioning for sensitive electronic equipment
• Harmonic reduction in AC/DC conversion stages

Common Mode Chokes Procurement Notes

Verify the complete part number including the suffix to ensure compliance with specific regulatory requirements such as RoHS or lead-free specifications. Confirm that the through-hole footprint matches the target PCB layout dimensions. Check the operating temperature range against the intended environment to ensure reliability under thermal stress. Ensure the 10A current rating exceeds the peak load requirements of the application to prevent saturation or overheating during operation.

Common Mode Chokes Selection Notes

Select this component when high current handling and robust mechanical protection are required for horizontal mounting. The low DCR minimizes power loss and heat generation in high-current circuits. Consider the physical size constraints as the epoxy potting adds volume compared to unpotted variants. Evaluate the 250 µH inductance value against the specific frequency spectrum of the noise to be filtered. Ensure the through-hole technology aligns with the manufacturing process capabilities of the assembly line.

Common Mode Chokes Part Context

Gowanda Electronics specializes in custom and standard magnetic components for aerospace, defense, and medical markets. The CMF4 series represents their epoxy-potted common mode chokes designed for durability. These components are often used in critical systems where reliability under harsh conditions is paramount. The manufacturer maintains strict quality standards, including ISO certifications, ensuring consistent performance across production batches.

Common Mode Chokes Replacement Considerations

Direct substitutes must match the 250 µH inductance, 10A current rating, and 6 mOhm DCR. Verify that alternative components support horizontal PC mounting and through-hole installation. Ensure the replacement offers comparable epoxy potting for environmental sealing. Check that the physical dimensions fit the existing PCB footprint without modification.