1538M08

Overview

The Hammond Manufacturing 1538M08 is a heavy-duty leaded RF choke from the 1538 series, designed for high-current applications. It features an unshielded wirewound construction with radial horizontal cylinder packaging. The component provides an inductance of 5 µH with a tolerance of 10%. It supports a maximum DC current of 14 A and has a maximum DC resistance of 9 mΩ. The self-resonant frequency reaches 27.2 MHz. The unit utilizes high saturation flux density ferrite rods and includes 1-inch long leads tinned to within 1/8 inch of the body.

Feature Summary

• Heavy-duty hash choke design utilizing high saturation flux density ferrite rods
• Unshielded wirewound construction suitable for filtering or energy storage
• Radial horizontal cylinder package with tinned leads for through-hole mounting

Applications

• RF circuit filtering
• EMI/RFI suppression
• Energy storage inductors

Procurement Notes

Verify the specific electrical parameters against the official Hammond Manufacturing datasheet before integration. Confirm that the 14 A current rating and 5 µH inductance align with the target circuit requirements. Ensure the unshielded nature of the component does not cause interference in sensitive layouts. Check lead length specifications for PCB clearance needs.

Selection Notes

Select this component when high current handling up to 14 A is required alongside moderate inductance values. The unshielded design allows for flexible placement but requires consideration of magnetic field interaction with nearby components. Ideal for industrial or audio applications where robustness and thermal stability are prioritized over compact shielding.

Part Context

This part belongs to the Hammond Manufacturing 1538 series of fixed inductors. The series focuses on heavy-duty chokes for demanding environments. Unlike shielded variants, these units expose the magnetic core, offering different thermal and spatial characteristics. The model number indicates specific inductance and current ratings within the product line.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-reference with other manufacturers' heavy-duty RF chokes only if electrical parameters match exactly.

FAQ

Is the 1538M08 shielded?

No, the 1538M08 is an unshielded wirewound inductor.

What is the maximum DC resistance?

The maximum DC resistance is 9 mΩ (0.009 Ohm).