STAC2942B

Overview

The STAC2942B is a gold metallized N-channel MOS field-effect RF power transistor designed for large signal applications up to 250 MHz. It utilizes ST air-cavity STAC packaging technology and features excellent thermal stability. The device supports a common source push-pull configuration with a minimum output power of 350 W at 175 MHz, achieving a gain of 21 dB under these conditions. It is intended for use in 50 V DC supply environments.

Feature Summary

• Gold metallization for enhanced performance
• Excellent thermal stability characteristics
• Common source push-pull configuration support
• ST air-cavity STAC packaging technology

Applications

• HF/VHF/UHF RF power amplification
• Large signal applications up to 250 MHz
• FM broadcast radio transmitter designs

Procurement Notes

Verify the current lifecycle status before integration, as availability may be limited. Confirm RoHS compliance requirements against specific project standards. Ensure that the 50 V DC operating limit is strictly adhered to during design validation. Check for any end-of-life notifications or alternative component recommendations from the manufacturer.

Selection Notes

Select this component for high-power RF applications requiring stable operation at frequencies up to 250 MHz. The 350 W minimum output capability makes it suitable for demanding broadcast scenarios. Consider the push-pull configuration requirements when designing the circuit topology. Verify thermal management solutions align with the device's stability specifications.

Part Context

This transistor belongs to the STAC series of RF power devices, which are characterized by their air-cavity packaging and gold metallization. These components are engineered for robust performance in high-frequency environments. The STAC2942B specifically targets applications needing high output power within the HF, VHF, and UHF bands.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential alternatives if this component is discontinued or unavailable.