105M02QB47

Overview

The Cornell Dubilier Knowles 105M02QB47 is a polyester film RC EMI/RFI filter designed for through-hole mounting. It features a capacitance of 1 µF with a ±20% tolerance and a rated voltage of 200 VDC or 125 VAC. The unit incorporates a 47-ohm resistor in a first-order low-pass configuration. Operating within a temperature range of -55°C to +85°C, it utilizes radial leads with dimensions of 36.80 mm length, 9.90 mm width, and 16.70 mm height.

Feature Summary

• Integrates a 47-ohm resistor with a 1 µF capacitor for combined filtering
• Provides first-order low-pass attenuation for EMI/RFI suppression
• Constructed using polyester film dielectric material

Applications

• General purpose electronic circuit noise reduction
• Power supply input filtering stages
• Signal line interference mitigation

Procurement Notes

Verify the specific voltage rating requirements against your application's DC and AC loads, as the component supports both 200 VDC and 125 VAC. Confirm that the physical footprint matches your PCB layout constraints, specifically the radial lead spacing and overall housing dimensions. Ensure the operating temperature environment remains within the specified -55°C to +85°C range for reliable performance.

Selection Notes

Select this component when a compact, integrated solution is required for basic EMI suppression without separate discrete components. The fixed 47-ohm resistance value limits adjustability, so ensure this impedance aligns with your circuit's source and load characteristics. Consider the thermal dissipation capabilities of the resistor element under continuous operation conditions.

Part Context

This part belongs to the Quencharc series of passive filters manufactured by Cornell Dubilier Knowles. These components are engineered to replace multiple discrete resistors and capacitors, simplifying assembly processes. The design focuses on providing effective high-frequency noise attenuation in space-constrained environments while maintaining electrical stability across wide temperature variations.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.