ATF-38143-TR2G

Overview

The ATF-38143-TR2G is a low noise pseudomorphic HEMT (pHEMT) manufactured by Broadcom Limited. It operates within the 450 MHz to 10 GHz frequency range and is housed in a 4-lead SC-70 (SOT-343) surface mount package. Key electrical parameters include a typical noise figure of 0.4 dB, associated gain of 16 dB, and output power at 1 dB gain compression of 12.0 dBm. The device is tested at 1.9 GHz with a drain voltage of 2 V and current of 10 mA. It features a maximum operating temperature of +160 C and power dissipation of 725 mW.

Feature Summary

• Ultra-low noise figure performance suitable for sensitive receiver front ends
• High dynamic range with good third-order intercept point
• Miniature leadless SOT-343 surface mount package design

Applications

• Low noise amplifier for cellular and PCS handsets
• LNA for WLAN, WLL/RLL, LEO satellite, and MMDS systems
• General purpose discrete pHEMT applications requiring ultra-low noise

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance and tape-and-reel packaging specifications against current datasheet revisions before integration into production workflows.

Selection Notes

Select this component when designing circuits for frequencies between 450 MHz and 10 GHz that demand minimal signal degradation. Ensure biasing conditions align with the 2 V, 10 mA test parameters for optimal noise and gain characteristics. Consider thermal management capabilities given the 725 mW power dissipation rating in the small SOT-343 footprint.

Part Context

This part belongs to Broadcom's RF FET and MOSFET portfolio, specifically the ATF series of pseudomorphic HEMTs. It serves as a discrete solution for radio frequency amplification tasks where integrated modules are not required. The TR2G suffix indicates tape-and-reel packaging with lead-free composition.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate ATF-34143 or ATF-54143 variants only if their specific gain and current parameters match the circuit requirements, noting differences in technology and pinout compatibility.