157H

Overview

The Hammond Manufacturing 157H is a fixed inductor designed as a DC filter choke. It features an open channel mount configuration and provides an inductance of 10 H with a tolerance of ±15%. The component supports a maximum DC current of 50 mA and exhibits a DC resistance (DCR) of 408 Ohms. It is unshielded and utilizes nonstandard packaging dimensions measuring 3.250 inches in length, 1.750 inches in width, and a maximum installation height of 2.000 inches.

Feature Summary

• Provides high inductance for effective DC filtering applications
• Features an open channel design suitable for bracket mounting
• Constructed without shielding to minimize magnetic interference

Applications

• DC power supply filtering circuits
• Industrial control equipment chokes
• Electronic signal conditioning systems

Procurement Notes

Verify the specific electrical parameters against the official datasheet before integration. Confirm that the 50 mA current rating meets the operational requirements of the target circuit. Ensure the mechanical footprint aligns with the available mounting space in the final assembly design.

Selection Notes

Select this component when a high inductance value is required for low-current DC applications. The open channel construction allows for flexible mounting solutions using standard brackets. Consider the physical size constraints due to the relatively large package dimensions compared to surface-mount alternatives.

Part Context

This part belongs to the Hammond Manufacturing series of fixed inductors and DC reactors. It is categorized under industrial control transformers and power inductors. The product line focuses on robust components for heavy-duty electronic applications requiring reliable filtering performance.

Replacement Considerations

Consult the official Hammond Manufacturing documentation for verified substitute part numbers within the same series or equivalent specifications from other manufacturers.