BLF4G20-110B,112

Overview

The BLF4G20-110B is an NXP USA Inc. LDMOS power transistor designed for base station applications in the 1800 MHz to 2000 MHz frequency range. It delivers 110 W of continuous wave output power with a drain-source voltage rating of 65 V and a junction temperature limit of 200 °C. The device features internal matching, high efficiency, and excellent ruggedness against load mismatches up to 10:1 VSWR.

Feature Summary

• Internally matched for ease of use
• Excellent ruggedness under mismatched load conditions
• High efficiency and thermal stability
• Designed for broadband operation

Applications

• RF power amplifiers for GSM base stations
• RF power amplifiers for GSM EDGE base stations
• RF power amplifiers for CDMA base stations
• Multicarrier applications in the 1800 MHz to 2000 MHz range

Procurement Notes

Verify component authenticity through authorized channels due to ElectroStatic Discharge sensitivity. Confirm package variant (SOT502A flanged or SOT502B earless) matches design requirements. Ensure handling procedures prevent ESD damage during transport and installation. Check latest datasheet status for any specification updates before finalizing designs.

Selection Notes

Select this component for UHF power amplifier designs requiring robust performance in cellular infrastructure. Consider the 28 V supply voltage requirement and the need for adequate heat sinking given the thermal resistance characteristics. Evaluate the internal matching capabilities to simplify RF circuit design within the specified frequency band.

Part Context

This device belongs to the BLF series of UHF power LDMOS transistors manufactured by NXP Semiconductors (formerly Philips). It is specifically engineered for high-power RF applications in wireless communication base stations, offering a balance of power output, gain, and linearity for modern digital modulation schemes.

Replacement Considerations

Consult official documentation for verified substitute part numbers. No specific substitutes are listed in the provided source material.

FAQ

What is the maximum drain-source voltage rating?

The maximum drain-source voltage (VDS) is rated at 65 V.

How does the device handle load mismatches?

It can withstand a load mismatch corresponding to a VSWR of 10:1 through all phases under specified operating conditions.

What package options are available?

The BLF4G20-110B uses the SOT502A flanged ceramic package with mounting holes, while the BLF4G20S-110B uses the SOT502B earless flanged package.