CHF190104CBF250R

Overview

The CHF190104CBF250R is a high-power RF flanged chip termination manufactured by Bourns Inc. It features a resistance value of 25 ohms with a tolerance of ±5%. The component is rated for 800W of power dissipation and operates within a frequency range of DC to 1 GHz. It utilizes the 190104 (4826 metric) package size, designed for chassis mounting applications requiring robust RF signal termination.

Feature Summary

• High power handling capability of 800W for demanding RF environments
• Wide frequency operation from DC up to 1 GHz
• Flanged chip design optimized for chassis mounting

Applications

• RF power termination in communication systems
• Signal matching networks operating at high frequencies
• Load testing for RF amplifiers and transmitters

Procurement Notes

Verify the specific suffix 'R' against the manufacturer's current datasheet to confirm availability and exact specifications. Ensure the required 25-ohm impedance matches the system design. Confirm that the 800W power rating aligns with thermal management capabilities in the final assembly. Check for any RoHS compliance documentation if required by project standards.

Selection Notes

Select this component when high-frequency stability and significant power dissipation are required in a compact form factor. The 25-ohm value is suitable for specific impedance matching scenarios. Consider the physical dimensions of the 190104 package to ensure adequate clearance for mounting. Evaluate thermal requirements to maintain performance within the specified operating temperature range.

Part Context

This part belongs to the CHF series of power RF flanged chip terminations from Bourns. These components are engineered for high-reliability applications where standard resistors cannot handle the power levels or frequency ranges. The series offers various resistance values to accommodate different circuit requirements while maintaining consistent electrical characteristics across the DC to 1 GHz spectrum.

Replacement Considerations

Consult official Bourns documentation for direct cross-reference part numbers. Verify that any substitute maintains the 25-ohm resistance, 800W power rating, and 190104 package footprint. Ensure the replacement component supports the same DC to 1 GHz frequency range without introducing parasitic effects.