BLL1214-250

Overview

The BLL1214-250 is an L-band radar LDMOS transistor manufactured by Rochester Electronics, LLC. It operates within a frequency range of 1.2 GHz to 1.4 GHz. The device delivers 250 W of output power with a gain of 12 dB. Key electrical parameters include a rated voltage of 75 V and a test current of 150 mA. The component is housed in a SOT-502A package and utilizes chassis mounting for thermal management.

Feature Summary

• Designed specifically for L-band radar applications
• Utilizes LDMOS technology for high power performance
• Features low phase noise characteristics

Applications

• L-band radar systems
• HF/VHF power transmission
• Signal repeaters

Procurement Notes

Verify the specific datasheet version and manufacturer origin when sourcing this component. As a Rochester Electronics product, confirm availability and lead times directly with authorized distributors. Ensure the SOT-502A package matches your thermal design requirements. Cross-reference part numbers carefully to avoid confusion with similar Ampleon or Philips variants.

Selection Notes

Select this transistor for applications requiring high power output in the 1.2–1.4 GHz range. Consider the 75 V rated voltage and chassis mount requirement during circuit design. Evaluate thermal dissipation needs given the 250 W output capability. Compare against alternative LDMOS devices if different packaging or voltage ratings are necessary for the specific system architecture.

Part Context

Rochester Electronics specializes in providing continuing source solutions for end-of-life and obsolete semiconductors. This component represents a lifecycle supply option for legacy designs originally based on Philips Semiconductors specifications. It serves as a replacement source for systems requiring reliable L-band power transistors no longer in primary production.

Replacement Considerations

The BLL1214-250I is listed as a related HF/VHF power transistor variant. Verify pinout compatibility and electrical specifications before substituting. Consult official documentation to ensure functional equivalence in existing chassis-mounted assemblies.