BLF0910H9LS600J

Overview

The BLF0910H9LS600 is a 600 W LDMOS power transistor designed for industrial applications at 915 MHz. It operates in a class-AB configuration with VDS = 50 V and IDq = 90 mA, delivering 600 W output power with 18.6 dB gain and 65.7% drain efficiency. The device features an earless flanged ceramic package (SOT502B) with internally matched inputs for broadband operation from 900 MHz to 930 MHz. Key electrical limits include a drain-source voltage of 106 V and a junction temperature maximum of 225 °C. Thermal resistance from junction to case is 0.174 K/W at Tcase = 90 °C.

Feature Summary

• High efficiency and excellent ruggedness for high-power CW applications
• Integrated ESD protection and easy power control
• Designed for broadband operation between 900 MHz and 930 MHz
• Internally input matched for simplified circuit design

Applications

• Industrial applications in the 915 MHz ISM band

Procurement Notes

Verify the specific ordering suffix against official Ampleon documentation to ensure correct package version and RoHS compliance status. Confirm that the requested part matches the SOT502B earless flanged ceramic package specification. Check the latest product data sheet revision for any updates to limiting values or thermal characteristics before finalizing procurement orders.

Selection Notes

Select this component for designs requiring 600 W continuous wave output at 915 MHz. Ensure the application circuit supports the specified 50 V drain supply and 90 mA quiescent current. Verify that the PCB layout accommodates the SOT502B package dimensions and provides adequate heat sinking to maintain the junction temperature below 225 °C under maximum load conditions.

Part Context

This device belongs to Ampleon's 9th generation LDMOS power transistor family. It is specifically engineered for robust performance in industrial radio frequency heating and plasma generation systems. The internal matching network simplifies the design process compared to non-matched counterparts, reducing external component count while maintaining stable impedance characteristics across the designated frequency range.

Replacement Considerations

Consult the official Ampleon replacement guide for verified substitute part numbers. Do not assume functional equivalence with other models without verifying pinout compatibility, thermal resistance, and RF performance specifications against the target application requirements.

FAQ

What is the maximum load mismatch the device can withstand?

The BLF0910H9LS600 can withstand a load mismatch corresponding to VSWR = 10:1 through all phases during class-AB operation.

How is the gate connected in the pinning configuration?

Pin 2 is the gate connection. Pin 1 is the drain, and Pin 3 is the source, which is connected to the flange.

What are the ESD sensitivity classifications for this transistor?

It has a Charged Device Model (CDM) classification of C2A and a Human Body Model (HBM) classification of 2.