NXP Semiconductors MW6S004NT1

Overview

MW6S004NT1 from Freescale Semiconductor is an N-channel enhancement-mode lateral RF power MOSFET designed for Class A/AB base station amplifiers operating up to 2000 MHz. It delivers 4 W PEP output at 28 V, with 18 dB power gain and 33% drain efficiency at 1960 MHz, supporting analog/digital modulation and multicarrier applications in cellular infrastructure.

For engineers reviewing the MW6S004NT1 datasheet, MW6S004NT1 pinout, MW6S004NT1 application, or MW6S004NT1 equivalent, this device requires attention to its 28 V DC biasing, 50 mA quiescent drain current, series-equivalent impedance matching, thermal resistance (8.8 °C/W), and ESD protection class (HBM 1C, CDM IV) in high-reliability RF PA designs.

Technical Context

This RF power transistor operates in common-source configuration with characterized series-equivalent large-signal source and load impedances (e.g., Z_source = 1.89 − j5.10 Ω, Z_load = 8.93 + j7.46 Ω at 1960 MHz). Its on-chip RF feedback ensures broadband stability across 500–3000 MHz, validated by S-parameter data up to 3 GHz under 28 V/50 mA conditions.

The device integrates ESD protection per JESD22-A114 (HBM Class 1C), JESD22-A115 (MM Class A), and JESD22-C101 (CDM Class IV), and is rated for 5:1 VSWR tolerance at 28 Vdc and 4 W CW output-critical for ruggedized base station PA stages exposed to antenna mismatch.

Key Specifications

Pinout & Package

Package: CASE 466-03, STYLE 1 - plastic surface-mount package with 4 terminals, 7.24 mm × 6.48 mm footprint, PLD 1.5 mm height, RoHS compliant, MSL Level 3 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRF6S004NT1, MW6S004NT1 offers identical RF performance but optimized thermal pad layout for CASE 466-03; versus PD55003-E, it provides higher output power, broader frequency coverage, and verified VSWR ruggedness-making it preferable for macrocell and repeater applications demanding reliability under mismatch.

Availability

MW6S004NT1 is available at Aetrix Electronics and suitable for cellular infrastructure, public safety radio repeaters, and ISM band amplifier designs requiring stable component supply, long-lifecycle support, and traceable RF power transistor sourcing.

Supply support for MW6S004NT1 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, specializing in high-reliability semiconductor devices for wireless infrastructure and industrial RF systems.

The MW6S004NT1 belongs to Freescale's MW6S family of lateral N-channel RF power MOSFETs, engineered specifically for cost-effective, thermally robust, and linear Class A/AB amplification in macrocell and distributed antenna systems.

FAQ

What is the maximum DC drain voltage rating for MW6S004NT1?

The MW6S004NT1 has a maximum drain-source voltage rating of +68 Vdc, allowing safe operation well above its typical 28 Vdc supply rail. This margin accommodates voltage transients and standing waves in mismatched antenna environments, and is confirmed in Table 1 of the official datasheet (Rev. 4, June 2009). The MW6S004NT1 must never be operated beyond this absolute maximum rating to prevent irreversible breakdown.

Does MW6S004NT1 require external ESD protection in PCB layout?

No, MW6S004NT1 incorporates integrated ESD protection meeting HBM Class 1C (≥1000 V), MM Class A, and CDM Class IV per JESD22 standards. As stated in Table 3 and Features section, this eliminates the need for discrete ESD diodes at the gate or drain terminals-provided proper handling and PCB grounding practices are followed. The MW6S004NT1's on-die protection is sufficient for standard RF board-level ESD events.

What is the thermal resistance junction-to-case for MW6S004NT1 at 4 W PEP operation?

The MW6S004NT1 exhibits a thermal resistance of 8.8 °C/W junction-to-case when operating at 4 W PEP, two-tone, with case temperature maintained at 76°C (Table 2). This value directly informs heatsink selection and thermal interface material requirements to ensure the junction temperature remains ≤150°C-the absolute maximum operating limit specified for the MW6S004NT1.

Can MW6S004NT1 be used in 900 MHz applications?

Yes, MW6S004NT1 is fully characterized and qualified for 900 MHz operation, delivering 4 W PEP output with 19 dB power gain and −39 dBc IMD in typical two-tone testing (page 2, "Typical Two-Tone Performance @ 900 MHz"). Its 1–2000 MHz frequency range explicitly covers GSM, ISM, and public safety bands, and the MW6S004NT1 maintains stable gain and efficiency across this span per Figure 11 and Table 7 S-parameters.

What does the "T1" suffix indicate in MW6S004NT1?

Per the datasheet footnote on page 1, the "T1" suffix denotes tape-and-reel packaging: 1000 units per 12 mm wide, 7-inch diameter reel. This format enables automated pick-and-place assembly in high-volume manufacturing. The MW6S004NT1's T1 packaging complies with RoHS and MSL Level 3 (260°C peak reflow), and is distinct from bulk or tube variants that lack this reel-specific designation.