8108

Overview

The Bourns 8108 is a through-hole common mode choke designed for two-line applications. It provides an inductance of 1 mH at 1 kHz with a maximum DC resistance of 10 mOhms. The component supports a maximum DC current of 10 A and operates within a temperature range of -55°C to +105°C. It features a dielectric strength of 1500 Vrms, ensuring robust isolation for signal integrity and noise suppression in electronic circuits.

Feature Summary

• Provides common mode noise suppression for two-line configurations
• Supports high current handling up to 10 A
• Offers strong dielectric isolation of 1500 Vrms
• Designed for reliable operation across extended temperature ranges

Applications

• Signal line filtering in industrial equipment
• Noise suppression in automotive electronics
• EMI reduction in consumer appliance control boards

Procurement Notes

Verify the specific suffix (e.g., RC) against the required RoHS compliance status. Confirm that the through-hole package dimensions match the target PCB footprint. Ensure the 10A current rating meets the circuit's peak load requirements without saturation. Check operating temperature limits against the final assembly environment.

Selection Notes

Select this component when high current capacity and low DC resistance are critical for power line filtering. The 2-line configuration is suitable for differential signal paths or dual-phase power lines. Consider the physical size constraints of the through-hole mounting style. Verify that the 1mH inductance value aligns with the targeted frequency range for effective common mode rejection.

Part Context

This component belongs to Bourns' series of common mode chokes, which are magnetic filters used to suppress electromagnetic interference. These devices typically utilize ferrite cores wound with copper wire to attenuate noise currents flowing in the same direction on multiple conductors while allowing differential signals to pass unaffected.

Replacement Considerations

Direct substitutes must match the 1mH inductance, 10A current rating, and 2-line through-hole form factor. Verify equivalent DC resistance and voltage ratings. Cross-reference with other Bourns 81xx series variants if pin compatibility is required.