NXP Semiconductors MRF7S19100NR1

Overview

MRF7S19100NR1 from Freescale Semiconductor is an N-channel enhancement-mode lateral RF power MOSFET designed for CDMA and W-CDMA base station final-stage amplifiers operating at 1930–1990 MHz. It delivers 29 W average output power at 28 V, achieves 17.5 dB power gain and 30% drain efficiency under single-carrier W-CDMA conditions, and supports digital predistortion correction in multicarrier cellular infrastructure.

For engineers reviewing the MRF7S19100NR1 datasheet, MRF7S19100NR1 pinout, MRF7S19100NR1 application, or MRF7S19100NR1 equivalent, key selection criteria include its 100 W CW P1dB, 5:1 VSWR ruggedness at 32 V, 225°C junction rating, and internally matched 50 Ω input/output impedance for simplified PCB layout in macrocell PA designs.

Technical Context

This device operates as a Class AB or Class C RF power amplifier stage in PCS/cellular and WLL base stations. Its lateral LDMOS structure enables high linearity (ACPR = –38 dBc @ ±5 MHz), low group delay variation (2.15 ns), and stable gain flatness (±1 dB over 60 MHz) across the 1930–1990 MHz band.

Internally matched design eliminates external matching networks at fundamental frequencies; ESD protection meets HBM Class 1C, MM Class A, and CDM Class IV. Thermal resistance is 0.57 °C/W (100 W CW, TC = 82°C), enabling high-power operation with standard heatsinking.

Key Specifications

Pinout & Package

Package: TO-272 WB-4 (Case 1484-04, Style 1), plastic overmolded, RoHS-compliant, tape-and-reel (R1 = 500 units per 44 mm, 13-inch reel). Case temperature rated to 150°C; junction rated to 225°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRF7S19100NR1, the MRFE6VP61K25H offers wider bandwidth and higher P1dB but increases design complexity with external matching, while the QPD1025 delivers superior efficiency via GaN but mandates redesign of bias network and ESD safeguards-neither is pin-compatible, and both require layout revision.

Availability

MRF7S19100NR1 is available at Aetrix Electronics and suitable for CDMA base station transmitters, W-CDMA macrocell power amplifiers, point-to-point wireless backhaul systems, and fixed wireless access transmitters requiring stable component supply and long-lifecycle support.

Supply support for MRF7S19100NR1 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

Freescale Semiconductor (now part of NXP Semiconductors) is a global leader in RF power solutions for wireless infrastructure, with deep expertise in LDMOS technology and cellular base station design.

The MRF7S series targets high-efficiency, high-linearity RF power amplification in 3G/4G macrocell and microcell base stations, emphasizing ruggedness, thermal reliability, and ease of integration in production-grade PA modules.

FAQ

What is the maximum continuous drain voltage rating for the MRF7S19100NR1?

The MRF7S19100NR1 has a maximum drain-source voltage (V_DSS) rating of +65 Vdc, but its recommended operating voltage (V_DD) is 32 Vdc. The device is characterized and guaranteed for rugged 5:1 VSWR operation at 32 Vdc and 1960 MHz, making it suitable for demanding base station environments where transient overvoltage may occur. This rating is confirmed in Table 1 of the official Freescale datasheet (Rev. 3, Dec. 2008).

Does the MRF7S19100NR1 require external matching networks?

No-the MRF7S19100NR1 is internally matched for 50 Ω input and output impedance across its 1930–1990 MHz operating band, as stated in the "Features" section and verified in Table 5's functional test conditions. This eliminates the need for external matching components in most standard 50 Ω system designs, reducing PCB area and insertion loss. However, fine-tuning may be applied for specific PA architectures or harmonic suppression.

What is the thermal resistance (R_θJC) of the MRF7S19100NR1 under full-power operation?

The MRF7S19100NR1 has a thermal resistance of 0.57 °C/W from junction to case when operating at 100 W CW with case temperature maintained at 82°C, as specified in Table 2 of the datasheet. This value is measured under controlled thermal test conditions per AN1955 and enables accurate heatsink sizing for continuous-duty macrocell applications.

Is the MRF7S19100NR1 suitable for digital predistortion (DPD) systems?

Yes-the MRF7S19100NR1 is explicitly designed for digital predistortion error correction systems, as noted in its "Features" list. Its low AM-PM distortion, stable PAR response (6.1 dB @ 0.01% CCDF), and consistent intermodulation performance (IM3 < –30 dBc at 47 W avg.) provide predictable nonlinear behavior essential for effective DPD algorithm convergence in W-CDMA and multicarrier CDMA systems.

What packaging and reel configuration does the MRF7S19100NR1 use?

The MRF7S19100NR1 is supplied in a TO-272 WB-4 plastic package (Case 1484-04, Style 1) and shipped in tape-and-reel format with suffix "R1" indicating 500 units per 44 mm wide, 13-inch diameter reel. This configuration supports automated SMT placement and complies with J-STD-020 moisture sensitivity level 3 (peak reflow temperature 260°C), as documented in Table 4.