NXP Semiconductors A5G35S008NT6

Overview

A5G35S008NT6 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 3300–3800 MHz with 48 Vdc drain supply, 24 mA quiescent current, and –2.57 Vdc typical gate bias.

For engineers reviewing the A5G35S008NT6 datasheet, A5G35S008NT6 pinout, A5G35S008NT6 application, or A5G35S008NT6 equivalent, this page delivers verified performance data at 3500 MHz (20.9 dB gain, 18.0% drain efficiency), thermal resistance (7.9 °C/W), ruggedness under 10 dB PAR AWGN, and DFN 4.5 × 4 mm package layout guidance.

Technical Context

This depletion-mode GaN HEMT operates with negative gate voltage control (V_GS(th) = –2.5 V typ), requires strict bias sequencing (pinch-off first, then V_DS, then gate ramp), and delivers broadband linearized output up to 27 dBm average power in W-CDMA and OFDM signals.

It features internally matched 50 Ω input/output impedance, supports wideband ruggedness up to 400 MHz ISBW at 55 Vdc, and maintains gain flatness of ±0.5 dB over 200 MHz bandwidth at 27 dBm output-optimized for low-complexity digital pre-distortion systems in active antenna units.

Key Specifications

Pinout & Package

Package: DFN 4.5 × 4 mm with exposed source pad on backside. Thermal path optimized via soldered copper area under die.

Key Features

Applications

Equivalent & Alternatives

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

Compared with QPD1025 and CGHV1F008D, the A5G35S008NT6 offers optimal balance of gain (20.9 dB), efficiency (18.0%), and thermal resistance (7.9 °C/W) specifically tuned for 27 dBm-class massive MIMO antenna elements - making it the preferred choice where size, linearity, and thermal density are co-constrained.

Availability

A5G35S008NT6 is available at Aetrix Electronics and suitable for 5G massive MIMO active antenna units, macro base station power amplifier stages, and private 5G indoor base stations requiring stable component supply and long-lifecycle support.

Supply support for A5G35S008NT6 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.

The Airfast RF Power product line delivers GaN transistors engineered for cellular infrastructure applications-including 5G massive MIMO, macro, and small cell base stations-with emphasis on broadband linearity, thermal robustness, and ease of integration.

FAQ

What is the recommended gate bias sequence for safe operation of the A5G35S008NT6?

The A5G35S008NT6 is a depletion-mode GaN transistor requiring strict turn-on/turn-off sequencing. To prevent catastrophic failure: first set V_GS to –5 V (pinch-off), then apply V_DS = 48 Vdc, then ramp V_GS to –2.57 Vdc to achieve 24 mA I_DQ. Turn-off follows reverse order: remove RF, reduce V_GS to –5 V, discharge V_DS to 0 V, then disable V_GS. This sequence is mandatory for every power cycle of the A5G35S008NT6.

Does the A5G35S008NT6 require external matching networks in standard applications?

No - the A5G35S008NT6 is an internally matched GaN transistor. Per NXP's reference circuit and datasheet Section 12.2, it achieves 50 Ω input/output impedance across 3300–3800 MHz without external matching components. The A5G35S008NT6 is validated on the NXP reference PCB using only DC blocking capacitors and bias chokes; no tuning stubs or lumped-element networks are needed for baseline operation.

What is the maximum channel temperature rating for the A5G35S008NT6, and how is it enforced?

The A5G35S008NT6 has a maximum channel temperature (T_CH) of 225°C, defined in Table 4 of the datasheet. This limit is enforced via thermal modeling using R_θCHC (FEA) = 18.1 °C/W and real-time case temperature monitoring. Since direct channel sensing is impossible, designers must maintain T_C ≤ +150°C and derate power accordingly - the A5G35S008NT6's R_θJC = 7.9 °C/W provides the critical link between measurable case temp and calculated channel temp.

How does the A5G35S008NT6 perform under modulated signal conditions like OFDM or 5G NR?

The A5G35S008NT6 is characterized under realistic modulated conditions: at 3500 MHz, 27 dBm average output, and 9.9 dB PAR (CCDF 0.01%), it achieves –42.3 dBc ACPR. Its low AM/PM distortion (–10° max) and 0.5 dB gain flatness over 200 MHz bandwidth directly support 5G NR FR1 waveforms. These metrics are measured on the NXP reference circuit with single-carrier W-CDMA and confirmed for OFDM per AN1955 thermal validation - confirming the A5G35S008NT6's suitability for production 5G base station deployment.

Is the A5G35S008NT6 compatible with lead-free reflow soldering processes?

Yes - the A5G35S008NT6 is qualified to MSL Level 3 per JESD22-A113 and supports lead-free reflow per JEDEC J-STD-020, with a peak package temperature rating of 260°C. NXP Application Note AN1907 provides validated reflow profiles, including ramp rates, soak time, and time above liquidus (60–90 seconds). The DFN 4.5 × 4 mm package uses matte tin terminations and is fully compatible with standard Type 3 or Type 4 solder pastes - ensuring reliable attachment in high-volume manufacturing of the A5G35S008NT6.