MRF151 RF MOSFET Equivalent & Substitute Parts

Part Overview

The MRF151 is an N-Channel RF MOSFET manufactured by MACOM Technology Solutions, designed for RF applications requiring 50V operation. This active product delivers 150W output power at 175MHz with gain specifications of 13dB to 22dB and a test current rating of 250mA. The device is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified to provide alternative sourcing options when the primary MRF151 is unavailable, while maintaining compatibility with the specified electrical and mechanical parameters of the application.

Substiute Parts

MRF151

MACOM Technology SolutionsIn Stock: 1284MRF151 Datasheet

Current PartRFQ

VRF151

Microchip TechnologyIn Stock: 917VRF151 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MRF151 are qualified based on the following critical parameters that determine functional equivalence:

Core Electrical Parameters:

• Technology: N-Channel MOSFET
• Frequency: 175MHz
• Voltage - Test: 50V
• Current - Test: 250mA
• Power - Output: 150W

Compliance & Environmental:

• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)
• ECCN: EAR99

The VRF151 manufactured by Microchip Technology meets these critical parameters and qualifies as a manufacturer-recommended substitute. Variations in rated voltage, gain specifications, and package designation do not preclude substitution when the test parameters and output power requirements align with the application.

Parameter Comparison

Engineering Selection Recommendations

Both the MRF151 and VRF151 are active products with ROHS3 compliance and identical MSL ratings. Selection between these parts should be based on:

Availability: Current inventory status indicates 1200 units of MRF151 and 866 units of VRF151 are in stock.

Compliance: Both devices meet EAR99 export classification and ROHS3 environmental requirements, suitable for equivalent application deployment.

Electrical Performance: The VRF151 operates at a higher rated voltage (170V vs. 125V), providing additional voltage margin in applications where the 50V test condition is the primary operating point.

Package Consideration: The VRF151 is supplied in M174 package format. Mechanical compatibility with the application PCB layout must be verified prior to substitution.

Frequently Asked Questions (FAQ)

Q: Can the VRF151 directly replace the MRF151 in my circuit?

A: The VRF151 qualifies as a substitute based on matching test voltage (50V), test current (250mA), frequency (175MHz), and output power (150W). Package compatibility must be confirmed for your specific PCB design.

Q: What is the difference in gain between MRF151 and VRF151?

A: The MRF151 specifies a gain range of 13dB to 22dB, while the VRF151 specifies 14dB. The VRF151 gain falls within the MRF151 range and is suitable for applications designed to the MRF151 specification.

Q: Why does the VRF151 have a higher rated voltage (170V vs. 125V)?

A: Rated voltage represents the maximum continuous operating voltage specification. Both devices are tested and qualified at 50V. The higher rated voltage of the VRF151 provides additional design margin but does not affect substitution compatibility at the 50V test condition.

Q: Are there package differences between MRF151 and VRF151?

A: The VRF151 is supplied in M174 package format. Physical dimensions and pin configuration must be verified against your PCB layout to ensure mechanical compatibility.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both MRF151 and VRF151 are ROHS3 compliant, carry MSL 1 (Unlimited) ratings, and are classified as EAR99 for export purposes.

Q: Which part should I select if both are available?

A: Selection should be based on application requirements, PCB layout compatibility, and current inventory availability. Both parts meet the specified electrical and compliance criteria for equivalent operation.