CHF5225CAF500L

Overview

The CHF5225CAF500L is a chassis-mounted RF power termination resistor manufactured by Bourns Inc. It features a nominal resistance of 50 Ohms with a tolerance of ±5%. The component is rated for 20 Watts of continuous power dissipation and operates within a frequency range of 0 Hz to 4 GHz. Designed for flange mounting, it utilizes a flat box terminator package configuration. This specific part number is currently classified as obsolete in the manufacturer's product lifecycle.

Feature Summary

• Provides precise 50-ohm impedance matching for RF signal paths
• Engineered for high-power dissipation up to 20 watts
• Supports wideband operation from DC to 4 GHz
• Utilizes robust flange mount construction for thermal management

Applications

• RF test and measurement equipment terminations
• Signal generator output matching
• Network analyzer port loading
• Broadband RF circuit dummy loads

Procurement Notes

This component is officially marked as obsolete by Bourns Inc. Verification of availability requires checking distributor surplus channels or secondary market sources. Designers must confirm end-of-life status before finalizing procurement plans. No new manufacturing units are produced under this specific part number. Legacy stock may exist but supply continuity cannot be guaranteed through standard distribution networks.

Selection Notes

Select this component only if legacy system compatibility requires the exact CHF5225 series specifications. Verify that the 50-ohm value and 20-watt rating align with the target application's power handling requirements. Ensure the flange mount form factor fits the mechanical constraints of the enclosure. Consider alternative modern equivalents if current production availability is critical for long-term support.

Part Context

The CHF5225 series belongs to Bourns' dedicated line of RF power resistors designed for high-frequency applications. These components serve as essential terminations in radio frequency systems where precise impedance control is required. The CHF5225CAF500L represents a specific variant within this family, characterized by its 50-ohm resistance and chassis-mountable design suitable for benchtop or rack-mounted instrumentation environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the CHF5225CAF500L is obsolete, designers should consult Bourns technical support for current equivalent recommendations. Cross-reference with other manufacturers' 50-ohm 20W flange-mounted RF terminations if direct substitution is necessary.