UMIL3B

Overview

The UMIL3B is a bipolar RF transistor manufactured by Microsemi Corporation, designed for high-frequency applications. It operates within a frequency transition range of 225MHz to 400MHz and delivers a gain of 13dB. The device supports a maximum power output of 11W. Its DC current gain (hFE) is specified as a minimum of 10 at a collector current of 100A and Vce of 5V. This component is categorized under discrete semiconductor products, specifically bipolar junction transistors for radio frequency use.

Feature Summary

• Designed for radio frequency signal amplification in high-performance electronic systems
• Capable of handling significant power output levels suitable for demanding RF environments
• Engineered with specific current gain characteristics to ensure stable operation at defined bias conditions

Applications

• RF power amplification stages
• Communication system transmitters
• High-frequency signal processing equipment

Procurement Notes

Verify the manufacturer designation carefully, as Microsemi Corporation has been acquired by Microchip Technology Inc., which may affect documentation sources and part numbering conventions. Confirm that the specific lot marking aligns with the original Microsemi specifications rather than generic equivalents. Ensure that the operating parameters, particularly the high current requirements, match your circuit design constraints before finalizing procurement decisions.

Selection Notes

Select this component when a bipolar RF transistor with a transition frequency up to 400MHz and substantial power handling capability is required. The specific gain and current characteristics make it suitable for applications where linear amplification at these frequencies is critical. Consider the thermal management requirements associated with its 11W power rating during the design phase.

Part Context

The UMIL3B belongs to the family of bipolar RF transistors produced by Microsemi Corporation, now integrated into Microchip Technology Inc.'s portfolio. These components are typically utilized in aerospace, defense, and communication sectors where reliability and performance at radio frequencies are paramount. The part represents a specialized discrete semiconductor solution for analog signal processing tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official Microchip or distributor databases for cross-reference information if alternative sourcing is necessary.

FAQ

What is the maximum power rating of the UMIL3B?

The maximum power rating for the UMIL3B is 11W.

What is the frequency transition range for this transistor?

The frequency transition range is between 225MHz and 400MHz.