158Q

Overview

The Hammond Manufacturing 158Q is a fixed, unshielded audio power inductor designed for DC filter applications. It features a nonstandard construction with an inductance of 5 H and a maximum DC resistance of 105 Ohms. The component supports a maximum DC current of 150 mA. This choke is engineered for signal filtering within audio circuits, providing necessary impedance characteristics without magnetic shielding interference.

Feature Summary

• Fixed inductance value optimized for audio frequency filtering
• Unshielded design prevents magnetic coupling issues in sensitive audio paths
• Robust construction suitable for direct current load handling

Applications

• Audio power supply DC filtering
• Signal chain noise reduction
• Choke input filter stages

Procurement Notes

Verify the specific 150 mA current rating against circuit requirements to prevent saturation. Confirm the 105 Ohm DC resistance aligns with voltage drop constraints. Ensure the unshielded form factor fits within the mechanical layout without inducing cross-talk. Check RoHS compliance status prior to final integration approval.

Selection Notes

Select this component when a high-impedance DC block is required in low-current audio paths. The 5 H value provides significant attenuation for ripple frequencies. Consider the physical size and lack of shielding if adjacent components are sensitive to stray fields. Compare against shielded alternatives if electromagnetic interference is a primary concern in the enclosure.

Part Context

This inductor belongs to Hammond's range of passive electronic components focused on power conditioning and signal integrity. Unlike their enclosure products, this item addresses electrical performance directly. It serves as a critical passive element in analog audio systems where clean DC delivery is essential for amplifier performance and signal fidelity.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.