NXP Semiconductors MRF6S19100HR3

Overview

MRF6S19100HR3 from Freescale Semiconductor is an N-channel enhancement-mode lateral RF power MOSFET designed for Class AB operation in 1930–1990 MHz N-CDMA base station amplifiers. It delivers 22 W average output power at 28 Vdc, achieves 16.1 dB power gain and 28% drain efficiency under 2-carrier N-CDMA conditions, and supports 10:1 VSWR tolerance at 100 W CW.

For engineers reviewing the MRF6S19100HR3 datasheet, MRF6S19100HR3 pinout, MRF6S19100HR3 application, or MRF6S19100HR3 equivalent, key selection criteria include broadband intermodulation performance (IM3 = –37 dBc), adjacent channel power ratio (ACPR = –51 dBc), thermal resistance (RθJC = 0.50 °C/W at 22 W), junction temperature rating (TJ = 225 °C), and NI-780S package compatibility with high-power RF PCB layouts.

Technical Context

This device operates as a laterally diffused MOSFET optimized for wide instantaneous bandwidth and low memory effects in multicarrier cellular infrastructure. Its internally matched input and output enable simplified external matching network design while maintaining stable large-signal impedance across 1930–1990 MHz.

The MRF6S19100HR3 uses series-equivalent large-signal impedance parameters (e.g., Zsource = 2.14 – j2.00 Ω at 1960 MHz) for precise load-pull-based PA design. It integrates ESD protection rated to HBM Class 3A and supports up to 32 VDD operation, with gate threshold voltage (VGS(th)) specified between 1–3 Vdc and quiescent gate voltage (VGS(Q)) between 2–4 Vdc at IDQ = 900 mA.

Key Specifications

Pinout & Package

Package: NI-780S (Case 465A-06, Style 1), hermetically sealed ceramic/metal flange-mount package with integral heat slug. Dimensions: 20.45–20.70 mm (A) × 9.65–9.91 mm (B) × 4.32–5.33 mm (K), flange-mounted for direct thermal coupling to heatsink.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRF6S19100HR3, MRF6P19100HR5 offers higher peak power and better thermal performance but demands larger board area and revised heatsinking, while PD57018-E provides surface-mount convenience at the cost of 4 W lower output and significantly reduced ruggedness-making MRF6S19100HR3 the optimal balance of power, linearity, and manufacturability for mid-tier PCS base stations.

Availability

MRF6S19100HR3 is available at Aetrix Electronics and suitable for cellular infrastructure, wireless local loop (WLL), and multi-carrier amplifier applications requiring stable component supply, long-lifecycle support, and RoHS-compliant procurement.

Supply support for MRF6S19100HR3 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 MRF6S19100HR3 belongs to Freescale's MRF6S family of laterally diffused RF power MOSFETs, engineered specifically for high-efficiency, high-linearity N-CDMA and multicarrier amplifier applications in 1800–2200 MHz bands.

FAQ

What is the maximum continuous drain-source voltage rating for the MRF6S19100HR3?

The MRF6S19100HR3 has a maximum drain-source voltage (VDSS) rating of +68 Vdc, with a minimum of –0.5 Vdc. This allows safe operation up to 32 VDD in pulsed or transient conditions, though the recommended DC supply is 28 Vdc for nominal 22 W avg. output. The device is qualified for continuous use at this voltage level per Freescale's reliability testing.

Does the MRF6S19100HR3 require external input/output matching networks?

No, the MRF6S19100HR3 is internally matched for both input and output, as confirmed in Table 4 footnote and Functional Tests section. It is characterized with 50 Ω system impedance and delivers specified gain and linearity without discrete matching components-though external tuning may be applied for narrowband optimization or harmonic suppression.

What is the thermal resistance junction-to-case for the MRF6S19100HR3 at 22 W output?

The thermal resistance junction-to-case (RθJC) for the MRF6S19100HR3 is 0.50 °C/W when operating at 22 W CW with case temperature held at 77°C, as specified in Table 2. This value enables accurate junction temperature calculation using TJ = TC + (Pdiss × RθJC), where Pdiss ≈ 79 W at 28% efficiency and 22 W output.

Can the MRF6S19100HR3 operate reliably under 10:1 VSWR conditions?

Yes, the MRF6S19100HR3 is explicitly characterized to handle 10:1 VSWR at 1960 MHz and 100 W CW output power with 28 Vdc supply, as stated in the Features section. This ruggedness eliminates the need for external isolators in base station final stages, improving system efficiency and reducing failure points in deployed infrastructure.

What ESD protection level does the MRF6S19100HR3 provide?

The MRF6S19100HR3 incorporates integrated ESD protection rated to Human Body Model Class 3A (≥8 kV), Machine Model Class B, and Charge Device Model Class IV, per Tables 3 and 4. This level exceeds typical handling requirements for automated assembly and field maintenance, allowing direct PCB placement without supplemental TVS devices.