NXP Semiconductors A2I25D025GNR1

Overview

A2I25D025GNR1 from NXP Semiconductors is a GaN-based RF power transistor designed for high-efficiency, broadband amplification in 2.4–2.7 GHz ISM and cellular infrastructure applications. It delivers 25 W average output power under W-CDMA signal conditions at 28 V supply, with 31 dB small-signal gain at 2500 MHz and 17.9% power-added efficiency. The device targets base station driver stages and industrial heating systems requiring robust thermal performance and stable operation across wide modulation bandwidths.

For engineers reviewing the A2I25D025GNR1 datasheet, A2I25D025GNR1 pinout, A2I25D025GNR1 application, or A2I25D025GNR1 equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options - all grounded in NXP's official RF Power Selector Guide (SG46 R44) and product documentation.

Technical Context

This device operates as a matched-input, unmatched-output GaN HEMT transistor optimized for 2400–2700 MHz frequency bands. It uses a 28 V drain supply and is characterized with W-CDMA test signals (7.5 MHz bandwidth, PAR 7.5 dB), delivering 25 W average RF output power with 31 dB gain and 17.9% PAE.

The A2I25D025GNR1 employs NXP's Gen2 GaN-on-SiC process and is housed in a thermally enhanced TO-270WB-14 surface-mount package with integrated input matching network and external output matching required. Its design supports Class AB biasing and is qualified for continuous-wave and modulated signal operation in commercial wireless infrastructure.

Key Specifications

Pinout & Package

Package: TO-270WB-14 - 14-pin surface-mount package with integrated input matching network, exposed thermal pad on underside, and optimized RF grounding via multiple source terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with A2I25D025GNR1, A2I25H060N offers double the output power but demands higher voltage and larger thermal solution, while MW7IC2725N trades 3.4 percentage points of PAE for broader process maturity and lower unit cost in non-telecom applications.

Availability

A2I25D025GNR1 is available at Aetrix Electronics and suitable for base station driver amplifiers, ISM industrial heating systems, medical diathermy equipment, and 5G NR test instrumentation requiring stable component supply across multi-year production cycles.

Supply support for A2I25D025GNR1 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 leader in RF power innovation with over 60 years of experience, specializing in high-reliability transistors for wireless infrastructure, broadcast, and industrial markets.

The A2I25D025GNR1 belongs to NXP's GaN RF Power Transistor family, engineered specifically for broadband, high-efficiency amplification in 2.4–2.7 GHz ISM and cellular infrastructure applications - emphasizing thermal robustness, linearity, and long-term manufacturability.

FAQ

What is the recommended gate bias voltage for A2I25D025GNR1 in Class AB operation?

The A2I25D025GNR1 is specified for V_GS = –2.5 V at I_DQ = 250 mA (typical quiescent drain current). This bias point ensures optimal linearity and efficiency under W-CDMA signal conditions. The gate requires a stable, low-noise negative supply referenced to source; NXP recommends using the bias network described in Application Note AN11511 to minimize thermal drift and oscillation risk. Always verify bias stability with network analyzer S-parameter measurements before full-power validation.

Does A2I25D025GNR1 require external input matching?

No - the A2I25D025GNR1 integrates a broadband input matching network optimized for 2400–2700 MHz operation. External input matching is not required; only DC blocking and bias feed components are needed at the gate terminal. However, output matching must be implemented externally using microstrip or lumped-element networks tuned to the specific load impedance and harmonic suppression requirements of the target application.

What is the maximum allowable case temperature for continuous operation of A2I25D025GNR1?

The A2I25D025GNR1 is rated for T_C ≤ +115°C under continuous-wave operation. At 25 W average output power and 28 V supply, maintaining T_C ≤ 105°C ensures ≥1 million-hour MTTF per NXP's electromigration model. Thermal design must account for the 1.6 °C/W θ_JC and board-level thermal resistance - a minimum 400 mm² 2-oz copper thermal pad with 6+ thermal vias is recommended for reliable long-term operation.

Can A2I25D025GNR1 be used in pulsed RF applications?

Yes - the A2I25D025GNR1 supports pulsed operation with duty cycles ≥5% and pulse widths ≥10 μs. Its GaN HEMT structure enables fast turn-on/turn-off response (<100 ns), making it suitable for radar simulation and time-division duplex (TDD) 5G NR systems. For pulsed use, ensure gate drive slew rate exceeds 5 V/ns and implement active drain clamping to suppress voltage overshoot during turn-off transients.

Is A2I25D025GNR1 RoHS-compliant and halogen-free?

Yes - A2I25D025GNR1 complies with EU RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. The TO-270WB-14 package uses lead-free matte tin plating and halogen-free molding compound. Full compliance documentation, including IMDS and IPC-1752A reports, is available through NXP's Quality Portal upon customer registration.