Infineon Technologies PTF141501E V1

Overview

PTF141501E from Infineon is a thermally-enhanced 150 W RF LDMOS FET optimized for Digital Audio Broadcast (DAB) amplification in the 1450–1500 MHz band, featuring 16.5 dB typical CW gain at 1500 MHz, 48% drain efficiency at P–1dB under 28 V operation, and integrated Class 1 HBM ESD protection. It delivers 50 W average output power with –30 dBc spectral regrowth in DAB Mode 2 at 32 V.

For engineers reviewing the PTF141501E datasheet, PTF141501E pinout, PTF141501E application, or PTF141501E equivalent, key selection criteria include broadband internal matching for 1450–1700 MHz operation, 10:1 VSWR ruggedness at 150 W CW, thermal resistance of 0.4 °C/W, and gate bias stability across –40 to +150 °C storage range.

Technical Context

This device operates as a single-ended, high-power RF power amplifier stage with gold-metallized source/drain contacts and a slotted flange package enabling low thermal resistance. Its LDMOS architecture supports stable Class AB biasing at IDQ = 1.5 A with VGS = 2.5–4.0 V and exhibits low HCI drift and excellent thermal stability up to TJ = 200 °C.

The PTF141501E is characterized for DAB Mode 2 modulation (975 kHz tone spacing), delivering linear two-tone IMD of –30 dBc at 150 WPEP, and supports alternate broadband applications from 1600–1700 MHz with verified impedance matching networks and validated reference circuits.

Key Specifications

Pinout & Package

H-30260-2 thermally-enhanced slotted flange package with isolated source tab, designed for low-inductance grounding and high-power RF dissipation. Case temperature monitoring via flange surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRFE6VP61K25H and PD85015, the PTF141501E uniquely combines DAB-validated spectral performance, integrated broadband matching, and 0.4 °C/W thermal resistance-enabling faster time-to-market for Band III broadcast designs without requalification.

Availability

PTF141501E is available at Aetrix Electronics and suitable for DAB transmitter final stages, mobile broadcast repeaters, FM hybrid exciters, and RF test equipment requiring stable component supply and long-lifecycle support.

Supply support for PTF141501E 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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, RF, and automotive ICs, with leadership in high-reliability RF power devices for broadcast and industrial applications.

The PTF141501E belongs to Infineon's GOLDMOS® LDMOS portfolio, engineered specifically for high-efficiency, spectrally clean digital broadcast amplification in the 1.4–1.7 GHz range.

FAQ

What is the maximum safe operating junction temperature for the PTF141501E?

The absolute maximum junction temperature is 200 °C, with continuous operation rated up to this limit. Derating begins above 25 °C ambient at 2.5 W/°C, and thermal design must maintain TCASE ≤ 70 °C to sustain full 438 W total dissipation. The 0.4 °C/W RθJC value assumes proper mounting to a flat, conductive heatsink with thermal interface material.

Does the PTF141501E require external matching components for DAB operation?

No external matching is required for standard DAB Mode 2 operation at 1500 MHz-the device features broadband internal matching validated in Infineon's reference circuit (141501a-1500_sch). External components like C7 (33 pF), L1, and C19 (33 pF) serve bias decoupling and stability, not fundamental impedance transformation.

Can the PTF141501E be used in 1600–1700 MHz applications?

Yes-datasheet pages 7–8 confirm verified performance at 1600–1700 MHz, including gain flatness (13–17 dB), drain efficiency (20–35%), and two-tone IMD (–30 dBc at 150 WPEP). A dedicated 1600 MHz reference circuit (141501ef-1600) is provided with updated microstrip dimensions and component values.

What gate bias voltage range ensures stable Class AB operation at IDQ = 1.5 A?

At VDD = 28 V and TCASE = 25 °C, the gate-source voltage must be set between 2.5 V (min) and 4.0 V (max) to achieve IDQ = 1.5 A, with 3.3 V being the typical value. Bias networks must compensate for temperature-induced VGS drift-Infineon recommends using a thermistor-based current mirror or active bias controller for production systems.