IXFK64N60P Equivalent & Substitute Parts

Part Overview

The IXFK64N60P is an N-Channel MOSFET manufactured by IXYS, rated for 600V drain-to-source voltage with 64A continuous drain current at 25°C. This device is part of the HiPerFET™ series and is housed in a TO-264AA through-hole package. The part is currently in Active product status with 800,400 pieces available in inventory.

Substitute parts are necessary when the IXFK64N60P becomes unavailable, when alternative packaging is required for specific applications, or when design requirements necessitate different electrical characteristics within the same voltage and current class. The substitute parts listed below share the same 600V voltage rating and comparable current handling capabilities, though with variations in continuous drain current, on-resistance, and package configuration.

Substiute Parts

IXFK64N60P

IXYSIn Stock: 800470IXFK64N60P Datasheet

Current PartRFQ

FCH104N60

onsemiIn Stock: 2174FCH104N60 Datasheet

SimilarRFQ

FCH104N60F-F085

onsemiIn Stock: 827FCH104N60F-F085 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXFK64N60P is determined by the following critical parameters:

Voltage Rating Requirement: All substitute parts must maintain the 600V Vdss rating to ensure compatibility with the intended application voltage class.

Current Handling Capability: The IXFK64N60P delivers 64A continuous drain current. Substitute parts with lower current ratings (such as the FCH104N60 series at 37A) are suitable only for applications where the actual circuit current demand does not exceed the substitute part's rating.

On-Resistance (Rds On): The IXFK64N60P exhibits 96 mOhm maximum on-resistance. Substitute parts with higher on-resistance values will result in increased power dissipation and heat generation.

Package Configuration: The IXFK64N60P uses TO-264AA packaging. Substitute parts may use alternative through-hole packages (such as TO-247-3) that require different PCB footprints and thermal management considerations.

Gate Charge (Qg): The IXFK64N60P has a maximum gate charge of 200 nC at 10V. Substitute parts with different gate charge values affect gate drive circuit design and switching speed characteristics.

Product Status: The IXFK64N60P is Active. Substitute parts with Obsolete or Not For New Designs status should be evaluated based on application lifecycle requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: The IXFK64N60P remains the preferred choice for new designs due to its Active product status, higher continuous drain current rating (64A versus 37A), superior power dissipation capability (1040W versus 357W), and lower on-resistance (96 mOhm versus 104 mOhm). The TO-264AA package provides enhanced thermal performance compared to TO-247-3 alternatives.

FCH104N60 Substitution: This part is suitable only for applications where the circuit current demand does not exceed 37A and where the lower power dissipation rating (357W) is acceptable. The Obsolete product status indicates this part is no longer manufactured and should not be selected for new designs. The TO-247-3 package requires PCB redesign.

FCH104N60F-F085 Substitution: This variant is qualified to AEC-Q101 automotive standards and is packaged in Tube format. It is designated as Not For New Designs, indicating limited availability and manufacturer support. The automotive qualification makes this part suitable only for legacy automotive applications requiring replacement components. The 37A current rating and 357W power dissipation limit its use to lower-power circuit implementations.

Compliance Considerations: All three parts maintain ROHS3 compliance and REACH Unaffected status. The FCH104N60F-F085 includes AEC-Q101 automotive qualification, which is relevant only for automotive applications requiring this certification.

Frequently Asked Questions (FAQ)

Q: Can the FCH104N60 or FCH104N60F-F085 be used as direct replacements for the IXFK64N60P?

A: Direct replacement is not possible due to significant differences in current rating and power dissipation. The IXFK64N60P is rated for 64A continuous drain current and 1040W power dissipation, while both FCH104N60 variants are rated for only 37A and 357W. These parts are suitable only for applications where the actual circuit current does not exceed 37A. Additionally, the package change from TO-264AA to TO-247-3 requires PCB redesign.

Q: What are the key electrical differences between the IXFK64N60P and the FCH104N60 series?

A: The primary differences are: (1) Continuous drain current: IXFK64N60P provides 64A versus 37A for FCH104N60 variants; (2) On-resistance: IXFK64N60P has 96 mOhm versus 104 mOhm for FCH104N60 variants; (3) Gate charge: IXFK64N60P has 200 nC (FCH104N60) or 139 nC (FCH104N60F-F085); (4) Maximum gate voltage: IXFK64N60P supports ±30V versus ±20V for FCH104N60 variants; (5) Power dissipation: IXFK64N60P is rated for 1040W versus 357W for FCH104N60 variants.

Q: Are the FCH104N60 and FCH104N60F-F085 interchangeable with each other?

A: Both parts share the same 600V voltage rating, 37A current rating, 104 mOhm on-resistance specification, and TO-247-3 package. However, they differ in gate charge (82 nC for FCH104N60 versus 139 nC for FCH104N60F-F085) and product status (Obsolete versus Not For New Designs). The FCH104N60F-F085 includes AEC-Q101 automotive qualification and Tube packaging, while the FCH104N60 does not specify packaging format. Interchangeability depends on gate drive circuit design and application requirements.

Q: What is the impact of the package change from TO-264AA to TO-247-3?

A: The TO-264AA package (IXFK64N60P) and TO-247-3 package (FCH104N60 variants) have different physical dimensions, pin configurations, and thermal characteristics. TO-264AA typically provides superior thermal performance due to its larger die-attach area. Substitution requires complete PCB footprint redesign, different mounting hardware, and potential thermal management modifications. The two packages are not pin-compatible and cannot be used interchangeably on the same PCB without layout changes.

Q: Why are the FCH104N60 and FCH104N60F-F085 listed as Obsolete and Not For New Designs?

A: Obsolete status indicates the FCH104N60 is no longer manufactured by onsemi. Not For New Designs status for FCH104N60F-F085 indicates the manufacturer recommends against using this part in new product development, typically due to limited production, planned discontinuation, or availability of superior alternatives. Both statuses indicate these parts should be used only for legacy system maintenance or replacement applications where the IXFK64N60P is unavailable.

Q: Does the AEC-Q101 qualification of FCH104N60F-F085 make it suitable for all automotive applications?

A: AEC-Q101 qualification indicates the FCH104N60F-F085 meets automotive industry reliability and quality standards. However, qualification alone does not determine suitability. The 37A current rating and 357W power dissipation limit this part to lower-power automotive circuits. Applications requiring the 64A capability of the IXFK64N60P cannot use the FCH104N60F-F085 regardless of its automotive qualification.

Q: What is the significance of the different gate charge values between FCH104N60 (82 nC) and FCH104N60F-F085 (139 nC)?

A: Gate charge affects the gate drive circuit design and switching speed. The FCH104N60 requires less gate charge (82 nC), resulting in faster switching and lower gate drive power requirements. The FCH104N60F-F085 requires higher gate charge (139 nC), necessitating a more robust gate drive circuit. This difference must be evaluated against the specific gate driver capabilities in the target application.

Q: Are all three parts compliant with RoHS3 and REACH regulations?

A: Yes. The IXFK64N60P, FCH104N60, and FCH104N60F-F085 are all ROHS3 Compliant and REACH Unaffected. This ensures compatibility with environmental and regulatory requirements for electronics manufacturing in regulated markets.