Infineon Technologies PTVA120251EAV2XWSA1

Overview

PTVA120251EAV2XWSA1 from Infineon is a thermally-enhanced high-power RF LDMOS FET optimized for broadband amplifier stages in 500–1400 MHz base station transmitters. It delivers 25 W CW output at 50 V, achieves 18 dB small-signal gain at 1300 MHz, exhibits 54% drain efficiency at 25 W pulsed output, and withstands 10:1 load mismatch under full power - deployed in macrocell BTS final-stage PA modules.

For engineers reviewing the PTVA120251EAV2XWSA1 datasheet, PTVA120251EAV2XWSA1 pinout, PTVA120251EAV2XWSA1 application, or PTVA120251EAV2XWSA1 equivalent, key selection criteria include thermal resistance (3.7 °C/W), gate voltage range (–6 to +12 V), ruggedness under VSWR stress, and compatibility with ceramic open-cavity bolt-down mounting in high-reliability RF power systems.

Technical Context

This device operates as a single-ended, unmatched RF power transistor in Class AB configuration, biased at IDQ = 20 mA with VDD = 50 V. Its LDMOS structure enables stable operation across 960–1400 MHz while maintaining >17 dB gain and >47% drain efficiency at 25 W output.

The H-36265-2 package integrates a bolt-down flange for direct heatsink attachment, enabling low junction-to-case thermal resistance (3.7 °C/W) and continuous-wave operation up to TJ = 200 °C. ESD protection meets ANSI/ESDA/JEDEC JS-001 Class 2 (HBM).

Key Specifications

Pinout & Package

H-36265-2 is a ceramic open-cavity, single-ended, bolt-down package with metal flange for mechanical and thermal anchoring. The flange is electrically connected to the source terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MRF101AN and PD85004, PTVA120251EAV2XWSA1 offers broader bandwidth (500–1400 MHz), superior thermal performance (3.7 °C/W), and proven 10:1 VSWR resilience - making it the preferred choice for next-generation multi-band macrocell and critical communications transmitters.

Availability

PTVA120251EAV2XWSA1 is available at Aetrix Electronics and suitable for macrocell base station PA modules, public safety radio transmitters, ISM band industrial heating systems, and aerospace ground communication terminals requiring stable component supply and long-term lifecycle support.

Supply support for PTVA120251EAV2XWSA1 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-voltage and high-frequency discrete devices.

This part belongs to Infineon's PTVA series of thermally enhanced LDMOS RF transistors, designed specifically for high-efficiency, high-ruggedness macrocell and critical-communications power amplifiers operating above 500 MHz.

FAQ

What is the recommended gate bias voltage for linear operation?

The datasheet specifies V_GS = 3.35 V typical at I_DQ = 20 mA and V_DD = 50 V. For linear Class AB operation, a fixed gate bias network should be designed to maintain this voltage across temperature and unit variation, using a temperature-compensated Zener or active bias controller to prevent thermal runaway.

Can PTVA120251EAV2XWSA1 be used in Class C or Doherty configurations?

Yes - its LDMOS process and ruggedness support Class C switching and Doherty carrier/amplifier roles. However, gate drive must be optimized for fast turn-on/turn-off (tr/tf ≤ 6 ns), and output matching networks must account for harmonic content beyond fundamental band, especially in Doherty combiner design.

Is the flange electrically isolated from internal die connections?

No - the flange is internally connected to the source terminal. Electrical isolation between flange and heatsink is mandatory unless the heatsink is referenced to source potential. Insulating thermal pads or ceramic washers must be used in grounded-chassis systems to avoid short circuits.

What test fixture is required to replicate datasheet RF performance?

Infineon's LTN/PTVA120251EA E4 test fixture is specified for 960–1215 MHz characterization, while the H-36265-2 evaluation board (part number not disclosed) is used for 1200–1400 MHz validation. Matching network layout, grounding, and decoupling must follow Infineon's AN2015-01 layout guidelines to achieve published gain and efficiency.