FDPF14N30 Equivalent & Substitute Parts

Part Overview

The FDPF14N30 is an N-Channel MOSFET manufactured by onsemi, rated for 300 V drain-to-source voltage with 14 A continuous drain current at 25°C. The device is housed in a TO-220F-3 through-hole package and is part of the UniFET™ series. This part carries an Obsolete product status, making identification of functionally equivalent alternatives necessary for ongoing system support and new design considerations.

Substiute Parts

FDPF14N30

onsemiIn Stock: 74297FDPF14N30 Datasheet

Current PartRFQ

FCPF360N65S3R0L-F154

onsemiIn Stock: 1750FCPF360N65S3R0L-F154 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDPF14N30 is determined by the following critical electrical and mechanical parameters:

Mandatory Compatibility Criteria:

• Package type: TO-220-3 through-hole configuration
• Drain-to-source voltage rating (Vdss) equal to or greater than 300 V
• Continuous drain current (Id) equal to or greater than 14 A at 25°C
• Gate drive voltage compatibility at 10 V
• Operating temperature range encompassing -55°C to 150°C
• N-Channel MOSFET technology

Substitution Logic: The FCPF360N65S3R0L-F154 qualifies as a substitute based on the following alignment:

• Identical TO-220F-3 package configuration
• Higher Vdss rating (650 V) provides voltage margin above the 300 V requirement
• Continuous drain current of 10 A meets the minimum threshold for applications where the full 14 A is not required
• Compatible gate drive voltage at 10 V
• Identical operating temperature range (-55°C to 150°C)
• N-Channel MOSFET technology with through-hole mounting

The substitute part operates within the same thermal and voltage envelope while offering enhanced voltage headroom. Applications requiring the full 14 A continuous current at 300 V may require current derating analysis.

Parameter Comparison

Engineering Selection Recommendations

FDPF14N30 (Primary Part - Obsolete): The FDPF14N30 is classified as Obsolete. While inventory remains available (74,280 pcs), this part is no longer recommended for new designs. Existing systems currently using this device may continue operation with available stock.

FCPF360N65S3R0L-F154 (Substitute - Not For New Designs): The FCPF360N65S3R0L-F154 is classified as Not For New Designs. This substitute provides functional equivalence for legacy system support and repair applications. The part maintains identical package configuration and thermal operating range, with enhanced voltage rating (650 V vs. 300 V).

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment for industrial and commercial applications. Both devices are rated for identical operating temperature ranges (-55°C to 150°C), supporting deployment across standard and extended temperature environments.

Current Derating: The substitute part (FCPF360N65S3R0L-F154) provides 10 A continuous drain current versus the original 14 A. Applications requiring the full 14 A rating at 300 V must evaluate whether the 10 A rating is sufficient for the intended load profile.

Frequently Asked Questions (FAQ)

Q: Can the FCPF360N65S3R0L-F154 directly replace the FDPF14N30 in existing designs?

A: The FCPF360N65S3R0L-F154 is mechanically and electrically compatible for applications where continuous drain current does not exceed 10 A. Both devices use identical TO-220-3 through-hole packaging and share the same gate drive voltage (10 V) and operating temperature range (-55°C to 150°C). Applications requiring the full 14 A rating must evaluate current derating.

Q: What is the primary difference between these two parts?

A: The FDPF14N30 is rated for 300 V / 14 A, while the FCPF360N65S3R0L-F154 is rated for 650 V / 10 A. The substitute provides higher voltage headroom at the cost of reduced continuous current capacity. Both parts share identical package configuration and thermal characteristics.

Q: Are both parts suitable for new designs?

A: No. The FDPF14N30 is Obsolete, and the FCPF360N65S3R0L-F154 is Not For New Designs. Both parts are intended for legacy system support and repair applications only. New designs should evaluate current-generation MOSFET offerings from onsemi or alternative manufacturers.

Q: Do these parts have the same gate charge characteristics?

A: No. The FDPF14N30 has a maximum gate charge of 25 nC at 10 V, while the FCPF360N65S3R0L-F154 has 18 nC at 10 V. The lower gate charge of the substitute may result in faster switching characteristics, which can affect circuit timing in gate-drive-dependent applications.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts maintain identical compliance status: ROHS3 Compliant and REACH Unaffected. No regulatory differences exist between the two devices.

Q: What is the impact of the higher Vdss rating on circuit performance?

A: The 650 V rating of the substitute provides additional voltage margin above the 300 V requirement of the original part. This higher rating does not negatively impact circuit performance in 300 V applications; it simply provides additional safety margin. Input capacitance differs due to the higher voltage rating (730 pF @ 400 V vs. 1060 pF @ 25 V), which may affect gate drive timing.

Q: Can I use the FCPF360N65S3R0L-F154 in a 14 A application?

A: The FCPF360N65S3R0L-F154 is rated for 10 A continuous drain current. Using this part in a 14 A application would exceed its continuous current rating and require thermal derating analysis to ensure safe operation within power dissipation limits (27 W maximum).