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The BLS7G3135LS-350P is an LDMOS power transistor designed for S-band radar applications within the 3.1 GHz to 3.5 GHz frequency range. It delivers a typical output power of 350 W at VDS = 32 V and IDq = 200 mA in class-AB operation. The device features a drain-source breakdown voltage (V(BR)DSS) of 65 V, a gate-source threshold voltage (VGS(th)) ranging from 1.5 V to 2.3 V, and a forward transconductance (gfs) of 16.2 S. It operates with a maximum junction temperature of 225 °C and utilizes an internally matched earless flanged balanced ceramic package (SOT539B).
Verify the specific ordering suffix against official Ampleon documentation to ensure correct package configuration. Confirm RoHS compliance status through current manufacturer declarations. Validate that the component meets absolute maximum rating limits for your specific thermal and electrical operating conditions before integration.
Select this component for high-power S-band radar systems requiring robust performance in the 3.1 GHz to 3.5 GHz band. Ensure the design accommodates the 32 V drain supply and 200 mA quiescent current specified for optimal efficiency. Verify thermal management capabilities to maintain junction temperatures below the 225 °C limit during pulsed operation.
This part belongs to the BLS7G3135L series of LDMOS power transistors manufactured by Ampleon. The 'LS' variant specifically denotes the earless flanged balanced ceramic package (SOT539B), distinguishing it from the standard flanged version with mounting holes. Both variants share identical electrical characteristics and are intended for similar radar amplifier applications.
Consult official Ampleon substitution guides for verified equivalents. Cross-reference pinout configurations between SOT539A and SOT539B packages if considering mechanical alternatives.