1539M25

Overview

The Hammond Manufacturing 1539M25 is a heavy-duty RF choke belonging to the 1539 series. It features an unshielded drum core with wirewound construction and radial vertical cylinder packaging. The component provides an inductance of 5 mH (5000 uH) with a maximum DC resistance of 1.08 Ohms. It supports a DC current rating of 1.5 A and operates at frequencies up to 1 MHz.

Feature Summary

• Heavy-duty design for robust industrial applications
• Unshielded drum core construction for specific RF filtering needs
• Radial vertical cylinder package for through-hole mounting

Applications

• Radio frequency interference suppression
• Power supply filtering circuits
• Industrial control equipment noise reduction

Procurement Notes

Verify the specific inductance value of 5 mH and current rating of 1.5 A against circuit requirements. Confirm the radial lead configuration matches the PCB layout. Ensure the unshielded nature does not cause unwanted coupling in dense assemblies. Check datasheet for thermal derating curves if operating near the 1.5 A limit.

Selection Notes

Select this component when high current handling and significant inductance are required in a compact radial form factor. The unshielded design is suitable where magnetic field containment is not critical or where cost constraints preclude shielded alternatives. Consider the physical dimensions for clearance in the final assembly.

Part Context

This part belongs to the Hammond 1539 series of heavy-duty chokes, designed for demanding environments. It complements other Hammond power components by providing reliable inductive filtering solutions. The series is known for durability and consistent performance in industrial settings.

Replacement Considerations

No direct public substitute part numbers are confirmed for this specific model. Cross-reference with other 5 mH, 1.5 A radial chokes from different manufacturers, ensuring identical electrical parameters and mechanical footprint compatibility.