MRF327 Equivalent & Substitute Parts Reference

Part Overview

The MRF327 is an RF transistor NPN type manufactured by MACOM Technology Solutions, designed for high-power RF applications. This chassis mount device operates at 33V maximum collector-emitter breakdown voltage with 80W power dissipation capability and 9A maximum collector current. The part is currently in active product status with 1344 units in stock.

Substitute parts are necessary when the MRF327 reaches end-of-life, when supply constraints occur, or when application requirements shift toward surface mount packaging or different frequency/power characteristics. The substitute parts listed below provide functional equivalence within defined electrical and mechanical parameter ranges.

Substiute Parts

MRF327

MACOM Technology SolutionsIn Stock: 1398MRF327 Datasheet

Current PartRFQ

2SC5226A-4-TL-E

onsemiIn Stock: 168802SC5226A-4-TL-E Datasheet

MFR RecommendedRFQ

BF776H6327XTSA1

Infineon TechnologiesIn Stock: 1511BF776H6327XTSA1 Datasheet

MFR RecommendedRFQ

BFU690F,115

NXP USA Inc.In Stock: 36429BFU690F,115 Datasheet

MFR RecommendedRFQ

NSVF3007SG3T1G

onsemiIn Stock: 959NSVF3007SG3T1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MRF327 is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Transistor Type: NPN (required match)
• Voltage - Collector Emitter Breakdown (Max): Must equal or exceed 33V
• Current - Collector (Ic) (Max): Must equal or exceed 9A
• Power - Max: Must equal or exceed 80W
• DC Current Gain (hFE): Must support specified bias conditions

Mechanical Compatibility Criteria:

• Mounting Type: Chassis Mount (primary specification)
• Package / Case: 316-01, STYLE 1 (primary specification)

The four substitute parts listed below are identified as manufacturer-recommended alternatives. However, critical differences exist in their electrical ratings and packaging:

• 2SC5226A-4-TL-E: Surface mount device with significantly reduced voltage (10V), current (70mA), and power (150mW) ratings. Not electrically equivalent for high-power applications.
• BF776H6327XTSA1: Surface mount device with reduced voltage (4.7V), current (50mA), and power (200mW) ratings. Not electrically equivalent for high-power applications.
• BFU690F,115: Surface mount device with reduced voltage (5.5V), current (100mA), and power (230mW) ratings. Not electrically equivalent for high-power applications.
• NSVF3007SG3T1G: Surface mount device with reduced voltage (12V), current (30mA), and power (350mW) ratings. Product status is Obsolete. Not electrically equivalent for high-power applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Substitution: None of the listed substitute parts meet the electrical requirements for direct substitution of the MRF327. The MRF327 operates at 33V, 9A, and 80W, while all substitute parts are rated for significantly lower voltage, current, and power levels (maximum 12V, 100mA, and 350mW respectively).

Compliance Status: All active substitute parts (2SC5226A-4-TL-E, BF776H6327XTSA1, BFU690F,115) maintain ROHS3 compliance and MSL 1 rating, matching the MRF327 environmental specifications. The NSVF3007SG3T1G is marked as Obsolete and should not be selected for new designs.

Packaging Consideration: The MRF327 uses chassis mount packaging (316-01, STYLE 1), while all substitute parts use surface mount packages (SC-70, SOT-343, SOT-343F, or SC-70FL). This represents a fundamental mechanical incompatibility requiring circuit board redesign.

Application Scope: Substitute parts are suitable only for low-power RF applications operating below 12V and 100mA. Applications requiring the MRF327's 80W power dissipation, 9A current handling, or 33V voltage rating cannot use these substitutes without significant circuit redesign and performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the 2SC5226A-4-TL-E directly replace the MRF327 in my circuit?

A: No. The 2SC5226A-4-TL-E is rated for 10V maximum, 70mA maximum current, and 150mW power. The MRF327 operates at 33V, 9A, and 80W. These parts serve different application classes and are not electrically interchangeable.

Q: Why are all substitute parts surface mount devices when the MRF327 is chassis mount?

A: The substitute parts listed are manufacturer-recommended alternatives from the MRF327 datasheet cross-reference. However, they represent a different product category optimized for low-power surface mount applications rather than high-power chassis mount designs. Mechanical redesign is required for any substitution.

Q: Is the NSVF3007SG3T1G a viable option?

A: No. The NSVF3007SG3T1G is marked as Obsolete product status. Additionally, it is rated for only 12V, 30mA, and 350mW, making it unsuitable for MRF327 replacement. Obsolete parts should not be selected for new designs or production applications.

Q: What are the key parameters that determine substitution eligibility?

A: For the MRF327, substitution eligibility is determined by: (1) NPN transistor type, (2) Voltage - Collector Emitter Breakdown rating equal to or exceeding 33V, (3) Maximum collector current equal to or exceeding 9A, (4) Maximum power dissipation equal to or exceeding 80W, (5) Chassis mount packaging compatibility, and (6) ROHS3 compliance status.

Q: Can I use a lower-power substitute part if I reduce the operating conditions of my circuit?

A: Circuit redesign to accommodate lower-power substitute parts falls outside the scope of direct component substitution. Such modifications require full electrical and thermal re-analysis and are not covered by equivalent part specifications.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts (2SC5226A-4-TL-E, BF776H6327XTSA1, BFU690F,115) are ROHS3 compliant with MSL 1 rating, matching the MRF327. The obsolete NSVF3007SG3T1G is also ROHS3 compliant but should not be used due to obsolete status.