MGA-665P8-TR2 Equivalent & Substitute Parts

Part Overview

The MGA-665P8-TR2 is an RF amplifier IC designed for 802.11/WiFi and WLAN applications, operating across the 50MHz to 6GHz frequency range in an 8-LPCC surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. Substitute parts must maintain compatibility with the original electrical specifications and physical packaging requirements.

Substiute Parts

MGA-665P8-TR2

Broadcom LimitedIn Stock: 825MGA-665P8-TR2 Datasheet

Current PartRFQ

TRF37D73IDSGT

Texas InstrumentsIn Stock: 2106TRF37D73IDSGT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MGA-665P8-TR2 is determined by the following critical parameters:

• Frequency coverage must encompass or exceed the 50MHz to 6GHz operating range
• Package type must be 8-WFDFN Exposed Pad to ensure PCB compatibility
• Surface mount mounting type is required
• Supply voltage must be compatible with 3V operation or adjustable to this level
• Electrical performance (gain, noise figure, P1dB) should align with or exceed original specifications to maintain system performance

The TRF37D73IDSGT meets these substitution criteria with compatible packaging and surface mount configuration, though with extended frequency coverage and different electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TRF37D73IDSGT is available as an active product with ROHS3 compliance, providing supply chain continuity for the obsolete MGA-665P8-TR2. Both components share identical 8-WFDFN Exposed Pad packaging and surface mount configuration, enabling direct PCB layout compatibility.

Design considerations include supply voltage adjustment from 3V to 3.3V and increased current consumption (53mA versus 18.2mA ~ 23.8mA). The TRF37D73IDSGT provides higher P1dB (16.5dBm) and gain (19.5dB), with extended lower frequency coverage (1MHz versus 50MHz). Noise figure is higher at 3.2dB compared to the original 1.45dB ~ 1.9dB specification.

Frequently Asked Questions (FAQ)

Q: Can the TRF37D73IDSGT directly replace the MGA-665P8-TR2 without PCB modifications?

A: The identical 8-WFDFN Exposed Pad package enables direct footprint compatibility. However, supply voltage must be adjusted from 3V to 3.3V, and power delivery design must accommodate the increased current requirement of 53mA.

Q: What are the key electrical differences between these parts?

A: The TRF37D73IDSGT provides higher output power (P1dB 16.5dBm versus 11.4dBm) and gain (19.5dB versus 14.5dB ~ 17.4dB), but exhibits higher noise figure (3.2dB versus 1.45dB ~ 1.9dB). Frequency coverage extends lower to 1MHz.

Q: Are both parts suitable for 802.11/WiFi applications?

A: The MGA-665P8-TR2 is specified for 802.11/WiFi and WLAN applications. The TRF37D73IDSGT is a general-purpose RF amplifier covering 1MHz to 6GHz without specific RF type designation in the provided data.

Q: What compliance certifications apply to each part?

A: Both components are REACH Unaffected. The TRF37D73IDSGT is ROHS3 Compliant. RoHS status for the MGA-665P8-TR2 is not specified in the provided data.

Q: How does the package type affect substitution?

A: Both parts use 8-WFDFN Exposed Pad packaging in 2x2 configuration, ensuring identical PCB footprint and land pattern compatibility for direct substitution at the layout level.