1540M23

Overview

The Hammond Manufacturing 1540M23 is a fixed inductor from the 1540 series, designed as an unshielded toroidal coil. It features a radial vertical open mounting configuration with minimum lead lengths of 0.5 inches. The component provides an inductance of 1800 uH and supports a DC current rating of 2.5 A. Its maximum DC resistance is specified at 0.55 Ohms. This heavy-duty hash choke is constructed for high-current applications requiring robust performance.

Feature Summary

• Ideal for EMI/RFI filtering applications
• Suitable for energy storage inductors in switching power supplies
• Designed for high current handling capabilities

Applications

• EMI/RFI filtering
• Switching power supply energy storage
• High-power motor control cabinets

Procurement Notes

Verify the specific datasheet version to confirm the DC current rating, as sources indicate variations between 1.4A and 2.5A. Ensure the unshielded toroidal form factor aligns with thermal and spatial constraints. Confirm RoHS compliance status if required by assembly standards. Cross-reference the 0.55 Ohm maximum DC resistance against circuit loss requirements.

Selection Notes

Select this component when high-current toroidal inductance is required for RF chokes or hash chokes. The unshielded design necessitates careful placement to avoid magnetic interference with nearby sensitive components. Verify that the radial vertical package fits the PCB layout and that the lead length meets mechanical clearance needs.

Part Context

This part belongs to the Hammond Manufacturing 1540 Series, which specializes in high-current toroid inductors. The series is characterized by heavy-duty construction suitable for industrial automation and power electronics. These components are distinct from shielded variants, offering lower cost but requiring strategic layout planning.

Replacement Considerations

No public confirmed substitute part numbers are available.