MMRF2005NR1 Equivalent & Substitute Parts

Part Overview

The MMRF2005NR1 is an RF MOSFET LDMOS device manufactured by NXP USA Inc., designed for RF amplification applications at 940MHz. This discrete transistor operates at 28V test voltage with 3.2W output power and 35.9dB gain in a TO-270-16 package with flat leads. The device is classified as obsolete, necessitating identification of active substitute components to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

MMRF2005NR1

NXP USA Inc.In Stock: 1068MMRF2005NR1 Datasheet

Current PartRFQ

A2I09VD030NR1

NXP USA Inc.In Stock: 728A2I09VD030NR1 Datasheet

MFR RecommendedRFQ

A2I09VD030NR1

NXP USA Inc.In Stock: 728A2I09VD030NR1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMRF2005NR1 is based on the following critical parameters:

Frequency Compatibility: The substitute must operate within the 940MHz band to maintain RF performance in the intended application circuit.

Gain Performance: The substitute gain specification (34.3dB) falls within acceptable tolerance of the original device gain (35.9dB), representing a 1.6dB differential suitable for RF amplifier stage replacement.

Package Configuration: Both the main part and substitute utilize TO-270 package variants with flat leads, enabling direct mechanical and thermal interface compatibility on existing PCB layouts.

Voltage Ratings: The substitute operates at 48V supply voltage, which exceeds the original 28V test voltage specification, providing operational margin for the same RF amplification function.

Compliance Alignment: Both devices maintain ROHS3 compliance, identical MSL rating (3), and equivalent regulatory classification (EAR99, REACH Unaffected), ensuring no compliance degradation in substitution.

Product Status: The substitute A2I09VD030NR1 maintains Active product status, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: A2I09VD030NR1

The A2I09VD030NR1 is the manufacturer-recommended substitute for MMRF2005NR1 applications. Selection is justified on the following engineering criteria:

Compliance Continuity: Both devices maintain identical ROHS3 compliance status and MSL rating, eliminating compliance risk in substitution. Regulatory classification (EAR99, REACH Unaffected) remains unchanged.

Product Status Advantage: The substitute maintains Active product status, ensuring availability for current and future production requirements, whereas the original MMRF2005NR1 is classified as Obsolete.

Gain Specification: The 34.3dB gain of the substitute represents a 1.6dB reduction from the original 35.9dB specification. This differential is within typical RF amplifier stage tolerance and does not preclude functional equivalence in 940MHz applications.

Voltage Margin: The 48V supply voltage of the substitute exceeds the 28V test voltage of the original device, providing operational headroom for RF amplification circuits.

Package Compatibility: Both devices utilize TO-270 package variants with flat leads, supporting direct mechanical interface with existing thermal management and PCB layout infrastructure.

Frequently Asked Questions (FAQ)

Q: Can A2I09VD030NR1 directly replace MMRF2005NR1 in existing designs?

A: Direct replacement requires verification of mounting type compatibility. MMRF2005NR1 is specified as Chassis Mount, while A2I09VD030NR1 is specified as Surface Mount. PCB layout and thermal interface modifications may be necessary to accommodate the different mounting configuration.

Q: What is the significance of the 1.6dB gain difference between the two devices?

A: The gain differential (MMRF2005NR1: 35.9dB vs. A2I09VD030NR1: 34.3dB) represents a 4.4% reduction in linear gain. For RF amplifier stage applications, this differential typically falls within acceptable design tolerance and does not prevent functional substitution at 940MHz.

Q: Are there compliance or regulatory concerns with substitution?

A: No compliance degradation occurs. Both devices maintain ROHS3 compliance, identical MSL rating (3), and equivalent regulatory classification (EAR99, REACH Unaffected). Substitution does not introduce compliance risk.

Q: Why is the substitute classified as Surface Mount while the original is Chassis Mount?

A: Mounting type classification reflects the intended assembly method. Surface Mount indicates the substitute is designed for automated PCB assembly processes, while Chassis Mount indicates the original was designed for manual or specialized mounting. Circuit board redesign may be required to accommodate this difference.

Q: What is the advantage of the higher voltage rating in the substitute?

A: The 48V supply voltage specification of A2I09VD030NR1 provides operational margin above the 28V test voltage of MMRF2005NR1. This higher voltage rating allows the substitute to operate reliably across a wider range of supply conditions in RF amplification circuits.

Q: Is the TO-270-15 package of the substitute compatible with TO-270-16 footprints?

A: Both packages are TO-270 variants with flat leads. The 15-pin and 16-pin configurations differ in lead count. PCB footprint verification is required to confirm mechanical compatibility with existing designs.

Q: What inventory status should be considered for production planning?

A: MMRF2005NR1 inventory is listed as 1030 Pcs New Original In Stock (Obsolete status). A2I09VD030NR1 inventory is listed as 708 Pcs New Original In Stock (Active status). For long-term supply chain planning, the Active status of the substitute ensures continued availability beyond current stock levels.