157G

Overview

The Hammond Manufacturing 157G is a leaded DC reactor and filter choke designed for open channel mounting. It features an inductance of 30 H and supports a DC current of 40 mA. The component exhibits a resistance of 595 Ohms and utilizes a nonstandard package configuration. Tolerance for both inductance and resistance is specified at 15 percent, with measurements taken at rated DC conditions.

Feature Summary

• Economical open bracket design facilitating channel mount installation
• Functionality as a DC reactor and filter choke

Applications

• DC circuit filtering applications
• Choke coil implementation in power supplies

Procurement Notes

Verify the specific datasheet version to confirm electrical tolerances and physical dimensions prior to integration. Ensure the open channel mounting style aligns with the mechanical constraints of the target assembly. Confirm that the 40 mA DC current rating meets the operational requirements of the intended circuit design.

Selection Notes

Select this component when an economical, unshielded inductor solution is required for low-current DC applications. The 30 H inductance value suits specific filtering needs where standard packages are unsuitable. Consider the 15 percent tolerance limits during circuit design to ensure performance stability under varying conditions.

Part Context

The 157G belongs to the Series 157 line of fixed inductors manufactured by Hammond Manufacturing. This series focuses on providing cost-effective solutions for industrial and commercial electronic assemblies requiring reliable DC filtering capabilities without complex shielding requirements.

Replacement Considerations

No public confirmed substitute part numbers are available.