RMPA5251

Product Overview

RMPA5251 is a RFMD/Fairchild RF power amplifier or gain-block IC from Fairchild Semiconductor. In an RF design it is normally used as a wireless transmit PA, driver or RF gain stage, so the useful sourcing checks are not only the ordering code but also the operating band, gain behavior, output level, package footprint and bias conditions.

For this model, the key application data to verify are: frequency band follows the RFMD/RMPA/SGA/STA/SZA base family; gain, PAE, P1dB and linearity are exact-model datasheet parameters; and RF PA/gain-block bias per datasheet. Because RF amplifier parts are layout- and matching-sensitive, RMPA5251 should be treated as an exact-BOM item unless the replacement has been validated with the same matching network, thermal design and control conditions.

Key Features

• Manufacturer: Fairchild Semiconductor
• Part Number: RMPA5251
• Device Type: RFMD/Fairchild RF power amplifier or gain-block IC
• Signal-Chain Role: wireless transmit PA, driver or RF gain stage
• Frequency / Band: frequency band follows the RFMD/RMPA/SGA/STA/SZA base family
• Gain / NF / Linearity: gain, PAE, P1dB and linearity are exact-model datasheet parameters
• Output Power / Compression: PA or gain-block output class depending on model
• Supply / Bias: RF PA/gain-block bias per datasheet
• RF Interface: RF input/output plus bias/control pins
• Package / Mounting: surface-mount RF IC, MMIC, transistor or connectorized module depending on base number
• Design Note: verify S-parameters, matching network, thermal pad/flange and control pins before substituting this RF amplifier

Applications

• mobile/wireless PAs
• ISM front ends
• driver amplifiers
• legacy RF module repair

Quality & Sourcing

Antrex Electronics can support sourcing for RMPA5251 and related RF amplifier BOM lines, including exact part-number matching, lot-label review, packaging inspection and third-party testing support when the project requires additional verification.