NXP Semiconductors A5G26S008NT6

Overview

A5G26S008NT6 from NXP Semiconductors is a 27 dBm RF power GaN transistor designed for 5G massive MIMO active antenna systems in cellular base stations, operating across 2300–2690 MHz. It delivers 19.4 dB power gain and 16.5% drain efficiency at 2595 MHz with 48 Vdc supply, 17 mA quiescent current, and –2.5 V gate bias.

For engineers reviewing the A5G26S008NT6 datasheet, A5G26S008NT6 pinout, A5G26S008NT6 application, or A5G26S008NT6 equivalent, this page provides verified performance data, thermal limits, DFN 4.5 × 4 mm package details, and validated alternatives for 5G macro base station PA design.

Technical Context

This depletion-mode GaN HEMT operates with fixed negative gate bias (–2.5 V typical) and requires strict turn-on/turn-off sequencing: gate set to pinch-off (–5 V), then drain voltage applied, followed by gate adjustment to achieve 17 mA IDQ. Its internally matched design eliminates external impedance tuning for broadband operation.

The device integrates high terminal impedances optimized for linearization in wideband W-CDMA and OFDM signals, supporting 10.1 dB PAR handling at –42.4 dBc ACPR (2595 MHz). Thermal resistance RθJC is 7.3 °C/W (IR-measured), enabling stable operation up to +150 °C case temperature.

Key Specifications

Pinout & Package

Package: DFN 4.5 × 4 mm with exposed source pad on backside. Thermal path optimized via soldered copper slug to PCB ground plane.

Key Features

Applications

Equivalent & Alternatives

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

Compared with QPD0060 and AFGA26025, A5G26S008NT6 offers optimal balance of gain (18.4 dB), efficiency (16.0%), and linearity (–42.4 dBc ACPR) specifically tuned for 2.6 GHz 5G massive MIMO, making it the preferred choice where narrowband performance and thermal density are critical.

Availability

A5G26S008NT6 is available at Aetrix Electronics and suitable for 5G massive MIMO active antennas, macro base station transceivers, and private network infrastructure requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for A5G26S008NT6 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 secure connectivity solutions for automotive, industrial, and communications markets.

A5G26S008NT6 belongs to the Airfast RF Power portfolio, engineered specifically for energy-efficient, thermally robust, and linearized 5G base station power amplifiers operating in sub-6 GHz bands.

FAQ

What is the recommended gate bias sequence for safe operation of the A5G26S008NT6?

The A5G26S008NT6 requires strict gate bias sequencing due to its depletion-mode GaN structure. To turn ON: first set V_GS to –5 V (pinch-off), then apply V_DS = 48 Vdc, then adjust V_GS to –2.5 V to achieve 17 mA I_DQ. To turn OFF: remove RF input, reduce V_GS to –5 V, discharge V_DS to 0 V, then disable V_GS. This prevents gate overvoltage and drain overshoot during switching.

Does the A5G26S008NT6 require external impedance matching networks?

No, the A5G26S008NT6 is an internally matched GaN transistor. Its input and output impedances are optimized for broadband operation from 2300 to 2690 MHz, eliminating the need for discrete matching components in standard 50 Ω systems. Matching is already implemented within the die and package, as confirmed by NXP reference circuit measurements.

What thermal interface materials are recommended for the A5G26S008NT6's exposed source pad?

For the A5G26S008NT6's exposed source pad, NXP recommends solder attachment using SnAgCu (SAC305) paste with 125 µm stencil thickness and reflow profile per AN1907. Thermal interface materials like conductive epoxy or thermal pads are not recommended - direct soldering to a thermally enhanced PCB ground plane ensures R_θJC = 7.3 °C/W and avoids interfacial resistance that degrades thermal performance.

Can the A5G26S008NT6 be used in Doherty amplifier configurations?

Yes, the A5G26S008NT6 is validated for use in Doherty amplifier topologies. Its high terminal impedances, gain flatness (0.7 dB over 194 MHz), and wideband ruggedness support both carrier and peaking path implementations. NXP's reference design demonstrates –42.4 dBc ACPR in single-carrier W-CDMA at 2595 MHz, confirming suitability for high-efficiency Doherty PA stages in 5G base stations.

What is the maximum allowable channel temperature for continuous operation of the A5G26S008NT6?

The A5G26S008NT6 has a maximum channel temperature (T_CH) rating of 225 °C. For reliability, NXP specifies R_θCHC(FEA) = 17.8 °C/W and provides MTTF estimation: MTTF (hours) = 10[–11.6 + 9129/(T + 273)], where T is channel temperature in °C. Sustained operation above 200 °C significantly reduces lifetime; design must maintain T_CH ≤ 195 °C for >1 million hour MTTF.