NXP Semiconductors BLF6G10LS-135R,112

Overview

BLF6G10LS-135R from NXP Semiconductors is a 135 W LDMOS power transistor designed for RF power amplification in cellular base stations operating from 800 MHz to 1000 MHz. It delivers 26.5 W average output power at 869–894 MHz under 2-carrier W-CDMA conditions (28 V, 950 mA IDq), with 21.0 dB power gain, 28.0% drain efficiency, and −39 dBc ACPR - optimized for multi-carrier GSM, EDGE, W-CDMA, and CDMA infrastructure.

For engineers reviewing the BLF6G10LS-135R datasheet, BLF6G10LS-135R pinout, BLF6G10LS-135R application, or BLF6G10LS-135R equivalent, key selection criteria include broadband 800–1000 MHz operation, ruggedness under 10:1 VSWR mismatch, integrated ESD protection, thermal resistance of 0.56 K/W, and compliance with RoHS Directive 2002/95/EC.

Technical Context

The BLF6G10LS-135R operates in class-AB mode with a fixed 28 V drain-source voltage and 950 mA quiescent drain current, enabling stable high-power RF amplification across its 800–1000 MHz bandwidth. Its internally matched design eliminates external input/output matching networks for fundamental-band operation, reducing PCB complexity while maintaining −11.0 dB input return loss at 26.5 W output.

Thermally, it features a flanged ceramic SOT502B package with direct case-to-heatsink thermal path, supporting junction temperatures up to 225 °C and delivering 135 W peak envelope power under ruggedness-tested conditions (VSWR = 10:1, all phases, 894 MHz). Gate threshold voltage is tightly specified at 1.4–2.4 V, ensuring predictable turn-on behavior in bias control circuits.

Key Specifications

Pinout & Package

BLF6G10LS-135R uses an earless flanged LDMOST ceramic package (SOT502B) with metal flange thermally and electrically connected to pin 3 (source). The 2-lead configuration integrates drain and gate terminals on the top side, with source tied to the flange for low-inductance grounding and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar RF power transistor applications.

Compared with BLF6G10LS-135R, BLF6G20-135 shifts operational focus to PCS/UMTS bands while retaining identical ruggedness and packaging, whereas MRF6VP11KHR5 trades 15 W PEP and flange integration for higher voltage tolerance and alternate thermal management - neither offers pin-compatible replacement.

Availability

BLF6G10LS-135R is available at Aetrix Electronics and suitable for GSM macrocell transmitters, W-CDMA multi-carrier base stations, and CDMA infrastructure requiring stable component supply with traceable sourcing and long-lifecycle support.

Supply support for BLF6G10LS-135R includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in high-performance RF power solutions for wireless infrastructure and automotive radar.

The BLF6G10LS-135R belongs to NXP's LDMOS RF power transistor family, engineered specifically for energy-efficient, rugged, and broadband base station amplifiers operating in the 700–2700 MHz spectrum.

FAQ

What is the maximum junction temperature specification for BLF6G10LS-135R?

The BLF6G10LS-135R has a maximum junction temperature (Tj) rating of 225 °C, validated under continuous operation with case temperature maintained at 80 °C and 25 W output power. This high Tj rating enables reliable operation in thermally constrained base station enclosures where active cooling may be limited. The BLF6G10LS-135R achieves this through its ceramic SOT502B package and low 0.56 K/W thermal resistance from junction to case.

Does BLF6G10LS-135R require external input/output matching networks?

No, the BLF6G10LS-135R is internally matched for broadband operation from 800 MHz to 1000 MHz, eliminating the need for discrete input/output matching components in standard class-AB production test circuits. Its design achieves −11.0 dB input return loss and stable 21.0 dB gain across the band without external tuning, simplifying PCB layout and improving repeatability in high-volume manufacturing of BLF6G10LS-135R-based amplifiers.

What is the gate-source threshold voltage range for BLF6G10LS-135R?

The gate-source threshold voltage (VGS(th)) for BLF6G10LS-135R is specified from 1.4 V to 2.4 V at VDS = 10 V and ID = 180 mA. This narrow range ensures consistent turn-on behavior across production lots, facilitating accurate bias network design for stable 950 mA quiescent drain current. The BLF6G10LS-135R's typical VGSq (quiescent gate voltage) is 2.1 V under 28 V/950 mA operating conditions, aligning closely with this threshold window.

How does BLF6G10LS-135R perform under load mismatch conditions?

The BLF6G10LS-135R is rated for unconditional ruggedness under 10:1 VSWR at all phase angles when operated at 28 V, 950 mA IDq, 135 W peak envelope power, and 894 MHz. This capability allows it to survive antenna detuning events without failure, making it suitable for shared-antenna base station architectures where circulators are omitted. The BLF6G10LS-135R's robustness stems from its LDMOS structure and optimized thermal design, not external protection circuitry.

Is BLF6G10LS-135R compliant with RoHS and other environmental directives?

Yes, the BLF6G10LS-135R is compliant with Directive 2002/95/EC (RoHS), restricting hazardous substances including lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE. This compliance is confirmed in the official NXP product data sheet Rev. 01 (17 November 2008) and applies to all units shipped under the BLF6G10LS-135R type number. No exemptions or deviations are declared for the BLF6G10LS-135R in its certified RoHS status.