MRF151G RF MOSFET Equivalent & Substitute Parts

Part Overview

The MRF151G is an RF MOSFET manufactured by MACOM Technology Solutions, designed for RF power amplification applications. This dual N-channel common source transistor operates at 175MHz with 16dB gain and 300W output power capability. The device is currently in active production status with 3115 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or application-specific packaging preferences.

Substiute Parts

MRF151G

MACOM Technology SolutionsIn Stock: 3219MRF151G Datasheet

Current PartRFQ

VRF151G

Microchip TechnologyIn Stock: 2203VRF151G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MRF151G with equivalent parts is determined by matching the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Technology: MOSFET
• Configuration: 2 N-Channel (Dual) Common Source
• Frequency: 175MHz
• Gain: 16dB
• Voltage - Test: 50V
• Current - Test: 500mA
• Power - Output: 300W

Mechanical Compatibility Criteria:

• Package / Case designation
• Supplier Device Package specification
• RoHS compliance status

The VRF151G manufactured by Microchip Technology meets the electrical equivalence criteria for RF power amplification at the specified frequency, gain, and output power levels. Both devices share identical test voltage, test current, and output power specifications, establishing functional interchangeability for RF amplification circuits operating within these parameters.

Parameter Comparison

Engineering Selection Recommendations

MRF151G Selection Criteria:

• Primary choice when 375-04 Style 2 package is required by PCB layout or assembly process
• Active production status with 3115 units in current inventory
• ROHS3 compliance and MSL 1 rating suitable for standard manufacturing environments
• 40A current rating specification applies to this device

VRF151G Selection Criteria:

• Alternative when 4-SMD M208 package is compatible with circuit design
• Active production status with 2100 units in current inventory
• ROHS3 compliance and MSL 1 rating equivalent to primary part
• Higher rated voltage (170V vs 125V) provides additional voltage margin in applications
• Microchip Technology manufacturing source provides supply diversification

Both devices maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can VRF151G directly replace MRF151G in existing designs?

A: Electrical substitution is valid based on matching frequency (175MHz), gain (16dB), test voltage (50V), test current (500mA), and output power (300W) specifications. Package compatibility must be verified; MRF151G uses 375-04 Style 2 while VRF151G uses 4-SMD M208 package. PCB layout and assembly process requirements determine mechanical feasibility.

Q: What is the significance of the different current ratings (40A vs 1mA)?

A: These parameters are specified in the provided data. The 40A rating for MRF151G and 1mA rating for VRF151G represent different measurement conditions or specifications provided by each manufacturer. Circuit design requirements must reference the complete device datasheet for accurate current handling specifications.

Q: Are both devices suitable for the same RF power amplification applications?

A: Both devices share identical electrical specifications for frequency (175MHz), gain (16dB), test voltage (50V), test current (500mA), and output power (300W). Functional equivalence for RF amplification is established. Package selection depends on PCB design constraints and assembly capabilities.

Q: What compliance certifications apply to both parts?

A: Both MRF151G and VRF151G are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Both carry EAR99 ECCN classification. These certifications ensure compatibility with standard manufacturing, storage, and regulatory requirements.

Q: How do the different package types affect component selection?

A: MRF151G (375-04 Style 2) and VRF151G (4-SMD M208) require different PCB footprints and assembly processes. Package selection is determined by existing circuit board design, available assembly equipment, and manufacturing process specifications. Electrical performance is independent of package type.