NXP Semiconductors A5G19H605W19NR3

Overview

A5G19H605W19NR3 from NXP Semiconductors is an 85 W asymmetrical Doherty RF power GaN amplifier designed for cellular base station transmit stages operating in the 1930–1995 MHz band, delivering 17.0 dB gain, 55.7% drain efficiency, and –31.2 dBc ACPR at 1995 MHz under W-CDMA modulation.

For engineers reviewing the A5G19H605W19NR3 datasheet, A5G19H605W19NR3 pinout, A5G19H605W19NR3 application, or A5G19H605W19NR3 equivalent, this device requires attention to GaN depletion-mode bias sequencing, thermal management via its OM-780-4S4S package, ruggedness under 400 MHz ISBW broadband load mismatch, and compatibility with 48 Vdc drain supply and dual-gate bias control.

Technical Context

This GaN HEMT-based Doherty amplifier integrates carrier and peaking transistors in a single plastic OM-780-4S4S package with exposed source (backside) for thermal conduction. It employs internally matched impedance networks optimized for 1930–1995 MHz operation and supports wide instantaneous bandwidth with <0.7 dB gain flatness across 65 MHz at 85 W average output.

The device operates in depletion mode requiring negative gate bias (VGSA ≈ –2.6 V, VGSB ≈ –5.0 V) and features high terminal impedances for broadband stability. Its ruggedness is validated at 55 Vdc, 105 W modulated output with 10 dB PAR AWGN signal and no degradation under extreme VSWR conditions.

Key Specifications

Pinout & Package

Package: OM-780-4S4S - thermally enhanced plastic overmolded package with exposed copper backside serving as common source terminal and primary thermal path.

Key Features

Applications

Equivalent & Alternatives

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

Compared with A5G19H605W19N (bulk) and A5G26H605W19N (2.6 GHz), the A5G19H605W19NR3 offers production-ready tape-and-reel delivery for 1930–1995 MHz base stations, combining verified ruggedness, thermal performance, and spectral compliance without requiring layout or matching changes.

Availability

A5G19H605W19NR3 is available at Aetrix Electronics and suitable for macro base station RRHs, active antenna systems, and private 5G network infrastructure requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for A5G19H605W19NR3 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 specializing in secure connectivity solutions for automotive, industrial, and communications markets, with core expertise in RF power, radar, and secure edge processing.

The A5G19H605W19NR3 belongs to the Airfast RF Power GaN family - engineered specifically for energy-efficient, spectrally clean, and rugged cellular infrastructure PAs operating in sub-3 GHz licensed bands.

FAQ

What is the recommended gate bias sequence for A5G19H605W19NR3 during power-up?

The correct biasing sequence for A5G19H605W19NR3 is: (1) set VGSA and VGGB to –5.0 V, (2) apply +48 V to VDDA and VDDB, (3) increase VGSA until IDQA = 300 mA, (4) adjust VGGB to target bias voltage, then (5) apply RF input. This prevents gate overvoltage and ensures proper Doherty timing alignment in the A5G19H605W19NR3.

Does A5G19H605W19NR3 require external matching components for 1930–1995 MHz operation?

No, A5G19H605W19NR3 is internally matched for 1930–1995 MHz operation in a 50 Ω system. The datasheet confirms all typical performance data (gain, efficiency, ACPR) was measured with the device soldered to the NXP production test fixture without additional matching - making A5G19H605W19NR3 suitable for direct integration into reference layouts.

What thermal interface material is recommended for mounting A5G19H605W19NR3?

NXP recommends using a high-thermal-conductivity solder paste (e.g., Indium Corporation 50HT) or conductive epoxy to attach the exposed source pad of A5G19H605W19NR3 to a copper thermal plane or heatsink. This ensures the specified RθSC of 0.61 °C/W is achieved - critical for sustaining 85 W average output in continuous operation of A5G19H605W19NR3.

Can A5G19H605W19NR3 operate outside the 1930–1995 MHz band?

No - the datasheet explicitly states performance is guaranteed only within 1930–1995 MHz. Operation outside this band is not characterized, and parameters such as gain, efficiency, and ACPR are not assured. Using A5G19H605W19NR3 outside its specified band may result in degraded linearity, thermal instability, or failure to meet regulatory spectral masks.

What is the moisture sensitivity level (MSL) rating for A5G19H605W19NR3?

A5G19H605W19NR3 has a Moisture Sensitivity Level (MSL) of 3 per JESD22-A113 and IPC/JEDEC J-STD-020, with a peak reflow temperature of 245 °C. This requires floor life management: the device must be assembled within 168 hours after opening the dry pack, or baked per industry standards before reflow - a key handling requirement for A5G19H605W19NR3 in high-volume manufacturing.