NXP Semiconductors MRFX600H-230MHZ

Overview

MRFX600H-230MHZ from NXP Semiconductors is a high-ruggedness, 600 W peak, 230 MHz RF power LDMOS transistor designed for pulsed industrial and broadcast amplifiers. It operates at 65 VDD, delivers 26.4 dB power gain and 74.4% drain efficiency in pulse mode (100 µs, 20% duty cycle), and withstands >65:1 VSWR at all phase angles under overdrive conditions.

For engineers reviewing the MRFX600H-230MHZ datasheet, MRFX600H-230MHZ pinout, MRFX600H-230MHZ application, or MRFX600H-230MHZ equivalent, key selection criteria include ruggedness under mismatched loads, thermal impedance (0.037 °C/W), gate threshold voltage (2.5 V typ), ESD robustness (HBM Class 2, CDM Class C3), and suitability for push–pull or single-ended RF amplifier stages.

Technical Context

This dual-gate, dual-drain lateral MOSFET features unmatched input/output ports optimized for broadband operation from 1.8 to 400 MHz. Its 230 MHz characterization uses a production test fixture with 50 Ω system impedance, 65 VDC supply, and 100 mA total quiescent current (IDQ(A+B)).

The device supports linear and Class C operation via adjustable gate bias (VGS(Q) = 2.9 V typ), integrates on-chip ESD protection, and is qualified for continuous operation up to TJ = +225 °C with junction-to-case thermal impedance of 0.037 °C/W under pulsed conditions.

Key Specifications

Pinout & Package

MRFX600H-230MHZ is housed in the NI-780H-4L air-cavity ceramic package (4-lead, gull-wing leads). The backside metal serves as the common source terminal. Pin layout is symmetric: Pin 1 = Gate A, Pin 2 = Drain A, Pin 3 = Drain B, Pin 4 = Gate B (top view).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRFX600HS and MRFX600GS, the MRFX600H-230MHZ offers identical RF performance and ruggedness at 230 MHz but uses the NI-780H-4L package (56 mm tape width, gull-wing leads), making it optimal for high-volume production lines calibrated for wider tape formats and established thermal interface designs.

Availability

MRFX600H-230MHZ is available at Aetrix Electronics and suitable for industrial heating systems, broadcast transmitters, and medical RF ablation equipment requiring stable component supply across multi-year production cycles.

Supply support for MRFX600H-230MHZ 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 IoT applications.

The MRFX600H-230MHZ belongs to NXP's RF Power LDMOS transistor family, engineered specifically for rugged, high-efficiency amplification in industrial, medical, and broadcast systems operating below 400 MHz.

FAQ

What is the maximum junction temperature rating for MRFX600H-230MHZ?

The MRFX600H-230MHZ has an operating junction temperature range of –40 °C to +225 °C, validated per Table 1 in the NXP datasheet. This rating enables reliable operation in high-ambient environments such as enclosed broadcast cabinets or industrial plasma chambers where heatsink temperatures may exceed 100 °C. Thermal design must maintain TJ ≤ +225 °C under worst-case pulse conditions.

Does MRFX600H-230MHZ require external gate protection diodes?

No, MRFX600H-230MHZ includes integrated ESD protection rated to HBM Class 2 (2500 V) and CDM Class C3 (1000 V), as confirmed in Table 3 of the NXP datasheet. This eliminates the need for discrete gate protection components in standard RF amplifier layouts, provided PCB layout follows NXP AN1908 reflow and grounding guidelines.

Can MRFX600H-230MHZ be operated in CW mode at 230 MHz?

While the MRFX600H-230MHZ is characterized for pulsed operation (100 µs, 20% duty cycle) at 230 MHz, its 600 W CW rating applies across 1.8–400 MHz per the front-page specification. However, CW operation at 230 MHz requires careful thermal management: the CW thermal resistance is 0.15 °C/W (Table 2), demanding a heatsink capable of maintaining TC ≤ +75 °C to avoid exceeding PD limits.

What is the gate quiescent voltage specification for MRFX600H-230MHZ?

The gate quiescent voltage (VGS(Q)) for MRFX600H-230MHZ is specified as 2.7–3.2 V (typical 2.9 V) at VDD = 65 Vdc and IDQ(A+B) = 100 mA, per Table 4 of the NXP datasheet. This value is measured in the functional test fixture and defines the DC bias required to establish the recommended operating point for pulsed RF amplification at 230 MHz.

Is MRFX600H-230MHZ pin-compatible with MRFX600HS or MRFX600GS?

Yes - MRFX600H-230MHZ, MRFX600HS, and MRFX600GS share identical pin assignments and mechanical outline (NI-780-x-4L family), differing only in lead form (gull-wing vs. straight) and tape width. All three variants use Pins 1–4 for Gate A, Drain A, Drain B, and Gate B respectively, with the backside as common source. No PCB redesign is needed when substituting within the same package variant group.