NXP Semiconductors MMRF5015NR5

Overview

MMRF5015NR5 from NXP Semiconductors (formerly Freescale) is a depletion-mode GaN-on-SiC HEMT RF power transistor optimized for wideband amplification from 1–2700 MHz. It delivers 125 W CW output at 2500 MHz with 16.0 dB power gain and 64.2% drain efficiency under 50 Vdc, 350 mA bias, serving as the final-stage RF power amplifier in rugged military and infrastructure transmitters.

For engineers reviewing the MMRF5015NR5 datasheet, MMRF5015NR5 pinout, MMRF5015NR5 application, or MMRF5015NR5 equivalent, key selection criteria include its >20:1 load mismatch tolerance, 0.66 °C/W thermal resistance (CW), input-matched plastic OM-270-2 package, and verified pulse performance up to 125 W peak at 20% duty cycle.

Technical Context

This device operates as a single-ended, depletion-mode HEMT requiring negative gate bias (V_GS(Q) = –3.3 to –2.3 Vdc) and positive drain supply (0–50 Vdc). Its internal input matching enables decade bandwidth (1–2700 MHz) without external broadband matching networks, while GaN-on-SiC substrate ensures high junction temperature capability (T_J = –55 to +225°C) and robustness against VSWR stress.

Thermal design is defined by two distinct operating modes: CW mode (R_θJC = 0.66 °C/W at T_C = 80°C) and pulsed mode (Z_θJC = 0.16 °C/W at T_C = 56°C, 100 μs/20%). ESD protection meets Class 1B HBM (500 V), Class A MM (100 V), and Class IV CDM (2000 V).

Key Specifications

Pinout & Package

The MMRF5015NR5 uses the OM-270-2 plastic overmolded package with exposed source on the backside. Package dimensions are 11.94 × 6.53 mm (0.470 × 0.257 in), with two solder pads for thermal and electrical connection of the source terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CGHV14100F and QPD1025, the MMRF5015NR5 uniquely combines guaranteed 1–2700 MHz operation, integrated input matching, and lowest thermal resistance (0.66 °C/W) among 125 W GaN HEMTs - making it optimal for wideband, thermally constrained, and rapid-deployment RF amplifier designs.

Availability

MMRF5015NR5 is available at Aetrix Electronics and suitable for military radar transmitters, public safety mobile radios, EMC immunity testing systems, and wireless cellular infrastructure requiring stable component supply and long-term production continuity.

Supply support for MMRF5015NR5 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 deep heritage in RF power from its acquisition of Freescale.

The MMRF5015NR5 belongs to NXP's GaN-on-SiC RF power transistor family, engineered for high-reliability, wideband military and commercial transmitters where ruggedness, thermal efficiency, and broadband simplification are critical.

FAQ

What is the correct biasing sequence for the MMRF5015NR5?

The MMRF5015NR5 requires strict gate-first biasing due to its depletion-mode GaN HEMT structure. To turn on: (1) Set V_GS to pinch-off voltage (~–5 V), (2) Apply V_DD = 50 Vdc, (3) Adjust V_GS to achieve I_DQ = 350 mA, then (4) apply RF input. To turn off: reverse the sequence. Incorrect sequencing risks catastrophic failure. The MMRF5015NR5 datasheet specifies this in the "Correct Biasing Sequence" note.

Does the MMRF5015NR5 require external input matching?

No - the MMRF5015NR5 integrates an input matching network optimized for 1–2700 MHz operation, eliminating the need for external broadband input matching components in most reference designs. This is confirmed in the "Features" section and validated in both narrowband (2500 MHz) and wideband (200–2500 MHz) test circuits. External matching may still be used for fine-tuning specific band edges, but is not required for baseline operation of the MMRF5015NR5.

What is the maximum junction temperature rating for the MMRF5015NR5?

The MMRF5015NR5 has a specified operating junction temperature range of –55°C to +225°C, as documented in Table 1 ("Maximum Ratings"). This high T_J limit is enabled by the GaN-on-SiC substrate and is critical for sustaining 125 W CW operation under high ambient conditions. Derating is required above case temperature of 80°C in CW mode, and thermal design must ensure the MMRF5015NR5 junction remains within this absolute limit during all operating conditions.

Can the MMRF5015NR5 be used outside the 1–2700 MHz band?

No - the MMRF5015NR5 is characterized and performance is guaranteed only for applications operating within the 1–2700 MHz band. The datasheet explicitly states: "There is no guarantee of performance when this part is used in applications designed outside of these frequencies." Operation at 2700+ MHz or below 1 MHz may result in degraded gain, efficiency, or reliability, and is unsupported for production use of the MMRF5015NR5.

What does the 'R5' suffix in MMRF5015NR5 indicate?

The 'R5' suffix denotes the packaging configuration: 50 units per reel on 24 mm tape width using a 7-inch reel, per Table 6 ("Ordering Information") in the MMRF5015NR5 datasheet. This is the standard production tape-and-reel format for surface-mount assembly. The base part number MMRF5015N refers to the bare die or non-reel variants; MMRF5015NR5 is the orderable, assembly-ready version distributed by NXP and authorized partners including Aetrix Electronics.