C20530A-103

Overview

The C20530A-103 is a through-hole common mode choke manufactured by ITG Electronics, Inc. It features an inductance of 10.5 mH measured at 10 kHz and supports a maximum current rating of 11 A. The component has a maximum DC resistance (DCR) of 12 mOhm and is rated for an AC voltage of 250 V. Physically, it utilizes a dual-line configuration with pin spacing of 5.00 mm and overall dimensions of approximately 33.50 mm in length, 19.50 mm in width, and 34.00 mm in height.

Feature Summary

• Provides effective electromagnetic interference suppression for two-line circuits
• Designed for through-hole mounting to ensure secure mechanical attachment
• Constructed with high-current capability suitable for power line applications

Applications

• Power supply input filtering
• EMI noise reduction in electronic equipment
• Common mode noise suppression in AC/DC converters

Procurement Notes

Verify the specific inductance tolerance and current derating curves against the official ITG Electronics datasheet before integration. Confirm that the physical footprint matches the PCB layout requirements, specifically the 5.00 mm pin spacing and maximum height constraints. Ensure the operating environment does not exceed the specified AC voltage rating of 250 V or the thermal limits defined in the component specifications.

Selection Notes

Select this component when a 10.5 mH inductance value is required for common mode noise attenuation at 10 kHz. The 11 A current rating makes it suitable for higher power applications compared to lower-rated series variants. Consider the through-hole package type if surface mount options are not feasible for the assembly process. Compare DCR values against other series models to optimize efficiency losses in the specific circuit design.

Part Context

This part belongs to the C20530A series of DIP common mode chokes from ITG Electronics. The series offers a range of inductances from 4.5 mH to 65.0 mH and currents from 2.8 A to 17.0 A. The C20530A-103 represents a mid-range option within this family, balancing inductance and current capacity for general-purpose EMI filtering tasks.

Replacement Considerations

Direct substitutes within the same series include C20530A-143, which shares similar physical dimensions but differs in electrical characteristics. Verify compatibility with any alternative components by comparing inductance, current ratings, and physical footprint against the original design requirements.