TPR175

Overview

The TPR175 is a high-power NPN bipolar radio frequency transistor manufactured by Microsemi Corporation. It operates within the 1030-1090 MHz frequency band, specifically designed for pulsed systems in this range. The device features a common base configuration and utilizes gold thin-film technology. Key electrical specifications include a collector-emitter breakdown voltage of 55V and a maximum collector current of 9A. It delivers a maximum power output of 290W and is housed in a 55CX chassis mount package.

Feature Summary

• High-power RF performance optimized for pulsed applications
• Gold thin-film construction for enhanced reliability
• Common base topology for stable operation

Applications

• Pulsed radar systems operating in the 1030-1090 MHz band
• High-power radio frequency amplification
• Military and aerospace communication transmitters

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential counterfeit risks. Confirm that the specific lot matches the required 55CX package variant. Check for any recent product change notices or obsolescence announcements from Microchip Technology, as Microsemi products may have undergone supply chain transitions. Ensure storage conditions comply with moisture sensitivity level requirements if applicable.

Selection Notes

Select the TPR175 when designing systems requiring high power output at 1 GHz frequencies with pulsed duty cycles. Consider the chassis mount requirement for thermal management and mechanical integration. Evaluate the 55V breakdown voltage against system peak voltages to ensure adequate safety margins. Compare against alternative RF transistors based on gain, efficiency, and thermal resistance characteristics specific to the application environment.

Part Context

Microsemi Corporation, now part of Microchip Technology Inc., specializes in high-performance analog mixed-signal integrated circuits, FPGAs, and power management solutions. The company serves critical markets including aerospace, defense, communications, and data centers. The TPR175 represents the company's expertise in robust, high-reliability discrete semiconductor components designed for demanding operational environments.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Microchip Technology resources for cross-reference information or updated component recommendations.