NXP Semiconductors AFT27S010NT1

Overview

AFT27S010NT1 from NXP Semiconductors (formerly Freescale) is an N-channel enhancement-mode RF power LDMOS transistor designed for cellular base station amplifiers operating from 728 MHz to 3600 MHz. It delivers 1.26 W average output power under W-CDMA modulation at 28 Vdc drain supply, with 21.7 dB typical power gain and –41.7 dBc adjacent channel power ratio at 2170 MHz.

For engineers reviewing the AFT27S010NT1 datasheet, AFT27S010NT1 pinout, AFT27S010NT1 application, or AFT27S010NT1 equivalent, this device is selected for broadband RF power amplifier stages requiring high linearity, digital predistortion compatibility, and stable performance across LTE/LTE-A bands including Band 13 (746–787 MHz), Band 1 (2110–2170 MHz), Band 7 (2500–2690 MHz), and Band 41 (2496–2690 MHz).

Technical Context

The AFT27S010NT1 employs a lateral DMOS structure optimized for wideband operation with internal RF feedback, enabling stable gain flatness (0.20 dB over 60 MHz) and low AM/PM distortion (–12.6° max at P3dB). Its gate threshold voltage (0.8–1.6 Vdc) and quiescent gate voltage (1.5–2.3 Vdc) support Class AB biasing in digitally predistorted systems.

Thermal design is enabled by a low junction-to-case thermal resistance of 3.5 °C/W, with the source terminal connected to the exposed center pad on the backside of the PLD-1.5W package. ESD protection meets Class 1B HBM, Class A MM, and CDM Class III per JEDEC standards.

Key Specifications

Pinout & Package

The AFT27S010NT1 is housed in a surface-mount PLD-1.5W plastic package with an exposed source pad on the underside. The package measures 4.91 mm × 3.94 mm × 1.27 mm (0.193″ × 0.155″ × 0.050″) and requires soldering to a thermally enhanced PCB pad per Figure 47 in the datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRF6P21190HR3 and AFM906S, the AFT27S010NT1 uniquely balances ultra-wideband coverage (728–3600 MHz), low-power efficiency (22.6% ηD at 1.26 W), and compact PLD-1.5W packaging-making it the only option among the three qualified for cost-sensitive, thermally constrained, multi-band small-cell and RRH designs.

Availability

AFT27S010NT1 is available at Aetrix Electronics and suitable for macrocell base stations, remote radio heads, small-cell access points, and public safety repeaters requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for AFT27S010NT1 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 leader focused on secure connectivity solutions for automotive, industrial, and communications markets, with deep heritage in RF power from its Freescale acquisition.

The AFT27S010NT1 belongs to NXP's AIRFAST RF Power LDMOS family, engineered specifically for energy-efficient, digitally predistorted cellular infrastructure amplifiers operating across licensed LTE and 5G NR sub-6 GHz bands.

FAQ

What is the maximum continuous drain voltage rating for the AFT27S010NT1?

The AFT27S010NT1 has a maximum drain-source voltage (VDSS) rating of +65 Vdc and –0.5 Vdc, as specified in Table 1 of the datasheet. This allows safe operation under transient conditions up to 32 Vdc operating voltage (VDD) with margin for voltage spikes in RF PA circuits. Exceeding +65 Vdc risks permanent device failure.

Does the AFT27S010NT1 require external gate bias sequencing?

No, the AFT27S010NT1 operates with a single positive gate bias (VGS(Q) = 1.5–2.3 Vdc at IDQ = 90 mA) and does not require complex gate voltage ramping or sequencing. Its N-channel enhancement-mode structure enables simple DC bias networks using resistive dividers or dedicated gate bias ICs, as demonstrated in Figures 2, 16, 20, and 35 of the datasheet.

Can the AFT27S010NT1 be used in 5G NR sub-6 GHz base stations?

Yes, the AFT27S010NT1 is validated for operation in key 5G NR sub-6 GHz bands including n78 (3300–3800 MHz) and n41 (2496–2690 MHz), with measured performance at 3400–3600 MHz and 2500–2700 MHz. Its 1.26 W avg. output, –44.9 dBc ACPR, and 16.0 dB gain at 3500 MHz meet baseline 5G NR FR1 PA requirements for low-tier distributed units.

What is the recommended PCB layout for thermal management of the AFT27S010NT1?

The AFT27S010NT1 requires direct soldering of its exposed source pad to a minimum 100 mm² copper area on the PCB layer beneath the device, with ≥4 thermal vias (0.3 mm diameter, filled or plated) connecting to inner ground planes. Figure 47 in the datasheet specifies pad dimensions (4.91 mm × 3.94 mm), and thermal testing confirms 3.5 °C/W RθJC only when mounted per this layout.

Is the AFT27S010NT1 pin-compatible with other PLD-1.5W LDMOS transistors?

The AFT27S010NT1 shares the PLD-1.5W footprint and pinout (RFout, RFin, source pad) with other NXP AIRFAST devices like AFT27S006NT1 and AFT27S015NT1, but electrical characteristics differ significantly. While mechanical replacement is possible, circuit re-tuning is mandatory due to variations in Zin, Zload, gain, and bias requirements across the family.