BLF202

Overview

The BLF202 is a high-power LDMOS RF power transistor manufactured by Ampleon USA Inc. Designed for robust performance in demanding radio frequency applications, this component operates with a drain voltage of 65 V and delivers an output power of 150 W at 900 MHz. It features a gain of 17 dB and utilizes the SOT-1120B (LDMOST) package for efficient thermal management. The device is rated for a continuous drain current of 4 A and includes internal protection mechanisms to ensure reliability under varying load conditions.

Feature Summary

• High-efficiency LDMOS technology optimized for broadband RF amplification
• Integrated electrostatic discharge and overload protection circuits
• Robust mechanical design suitable for base-mount installation

Applications

• Commercial mobile radio infrastructure
• Broadband communication systems
• Industrial, scientific, and medical (ISM) equipment

Procurement Notes

Verify the specific suffix code on the component marking against official Ampleon documentation to confirm exact electrical characteristics and packaging type. Confirm RoHS compliance status and check for any product change notices or end-of-life announcements prior to finalizing procurement plans.

Selection Notes

Select the BLF202 for designs requiring 150 W output power at 900 MHz. Ensure the printed circuit board layout supports the thermal requirements of the SOT-1120B package. Verify that the biasing network can handle the 4 A drain current rating without exceeding the 65 V maximum drain-source voltage limits.

Part Context

This component belongs to the Ampleon BLF series of LDMOS transistors, which are widely used in RF power amplifier modules. The BLF202 specifically targets the 900 MHz band, offering a balance of high power density and linearity compared to lower-frequency counterparts in the same family.

Replacement Considerations

Consult official Ampleon substitution guides for direct replacements. Potential alternatives within the BLF series may include models with similar power ratings but different frequency ranges or package types, requiring schematic and thermal redesign.