BLF8G38LS-75V

Overview

The BLF8G38LS-75V is a 75 W LDMOS power transistor designed for base station applications in the 3400 MHz to 3800 MHz frequency range. It features improved video bandwidth and low memory effects, making it suitable for multi-carrier systems like 3GPP test model 1 with 64 DPCH at a PAR of 7.2 dB. Typical performance at VDS = 30 V and IDq = 600 mA includes a power gain of 15.5 dB, drain efficiency of 26%, and an ACPR5M of -30 dBc. The device has a drain-source voltage rating of 65 V and operates with a junction temperature up to 225 °C.

Feature Summary

• Excellent ruggedness capable of withstanding high load mismatch conditions
• Low thermal resistance providing excellent thermal stability
• Decoupling leads enable improved video bandwidth for better linearity
• Lower output capacitance improves performance in Doherty applications

Applications

• RF power amplifiers for base stations
• Multi-carrier applications in the 3400 MHz to 3800 MHz frequency range

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package version and compliance status. Confirm that the component meets all required environmental directives, such as RoHS, before finalizing procurement specifications. Cross-reference the part number with official Ampleon databases to validate availability and any recent product change notices.

Selection Notes

Select this component for broadband RF power amplifier designs requiring high efficiency and low memory effects. Ensure the application circuit supports the specified operating conditions, including a drain-source voltage of 30 V and quiescent current of 600 mA. Verify that the PCB layout accommodates the earless flanged SOT1239B package and provides adequate thermal management for the junction-to-case thermal resistance.

Part Context

This device belongs to the BLF8 series of LDMOS power transistors manufactured by Ampleon USA Inc. It utilizes an earless flanged ceramic package (SOT1239B) designed for robust mounting and heat dissipation. The transistor integrates ESD protection and is internally matched to simplify circuit design for base station infrastructure.

Replacement Considerations

Consult official Ampleon substitution guides for verified replacements. No direct substitute part numbers are confirmed in the provided datasheet.