FDMS86368-F085 Equivalent & Substitute Parts

Part Overview

The FDMS86368-F085 is an N-Channel 80V 80A Power MOSFET manufactured by onsemi, part of the PowerTrench® series. This device is designed for surface mount applications in automotive-grade power switching circuits, featuring a Power56 package configuration. The part is currently classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement continuity. The FDWS86368-F085 serves as a direct functional equivalent with identical electrical specifications and automotive qualification.

Substiute Parts

FDMS86368-F085

onsemiIn Stock: 24018FDMS86368-F085 Datasheet

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FDWS86368-F085

onsemiIn Stock: 3415FDWS86368-F085 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDMS86368-F085 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Drain to Source Voltage (Vdss): 80V
• Continuous Drain Current (Id): 80A at 25°C
• On-State Resistance (Rds On): 4.5 mOhm maximum at 80A, 10V gate drive
• Gate Threshold Voltage (Vgs(th)): 4V maximum at 250µA
• Gate Charge (Qg): 75 nC maximum at 10V
• Input Capacitance (Ciss): 4350 pF maximum at 40V
• Maximum Gate Voltage (Vgs): ±20V
• Operating Temperature Range: -55°C to 175°C

Mechanical & Compliance Equivalence Criteria:

• Package Type: 8-PowerVDFN (Power56)
• Mounting Type: Surface Mount
• Automotive Grade: AEC-Q101 Certified
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The FDWS86368-F085 meets all electrical and mechanical equivalence criteria and is classified as active product status, providing a direct substitute for the obsolete FDMS86368-F085.

Parameter Comparison

Engineering Selection Recommendations

The FDWS86368-F085 is the direct substitute for the obsolete FDMS86368-F085. Both components are manufactured by onsemi and share identical electrical specifications across all critical parameters including voltage rating, current capacity, on-state resistance, gate characteristics, and thermal performance. Both devices carry AEC-Q101 automotive qualification and ROHS3 compliance certification, ensuring compatibility in automotive-grade applications.

The primary distinction between the two parts is product status and packaging format. The FDMS86368-F085 is classified as obsolete, while the FDWS86368-F085 maintains active product status with current inventory availability. The FDMS86368-F085 is supplied in Cut Tape and Digi-Reel® packaging, whereas the FDWS86368-F085 is supplied in standard Tape & Reel format. This packaging difference does not affect electrical or mechanical compatibility and is a procurement consideration only.

For new designs or ongoing production requiring this device class, the FDWS86368-F085 is the appropriate selection due to its active status and continued manufacturer support. Existing designs using the FDMS86368-F085 can transition to the FDWS86368-F085 without circuit modification, as all electrical and thermal characteristics remain identical.

Frequently Asked Questions (FAQ)

Q: Can the FDWS86368-F085 be used as a direct replacement for the FDMS86368-F085 in existing designs?

A: Yes. The FDWS86368-F085 is electrically and mechanically identical to the FDMS86368-F085 across all specified parameters. No circuit modifications are required. Both devices feature the same 80V/80A rating, 4.5 mOhm on-state resistance, gate characteristics, and thermal performance. The 8-PowerVDFN package footprint is identical between both parts.

Q: What is the difference between the FDMS86368-F085 and FDWS86368-F085?

A: The primary differences are product status and packaging format. The FDMS86368-F085 is obsolete and supplied in Cut Tape and Digi-Reel® format. The FDWS86368-F085 is active product and supplied in standard Tape & Reel format. All electrical specifications, thermal ratings, and automotive qualifications are identical.

Q: Are both parts AEC-Q101 qualified for automotive applications?

A: Yes. Both the FDMS86368-F085 and FDWS86368-F085 carry AEC-Q101 automotive qualification and are rated for automotive-grade applications. Both are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these devices?

A: Both devices operate across a junction temperature range of -55°C to 175°C (TJ), suitable for automotive and industrial applications requiring extended temperature performance.

Q: Does the packaging format difference affect electrical performance?

A: No. The packaging format difference (Cut Tape/Digi-Reel® versus standard Tape & Reel) is a supply chain and handling consideration only. The electrical performance, thermal characteristics, and mechanical compatibility remain identical. The 8-PowerVDFN package footprint is the same for both parts.

Q: What is the gate charge specification for these MOSFETs?

A: The gate charge (Qg) maximum is 75 nC at 10V gate drive for both devices. This parameter affects switching speed and driver circuit design but is identical between the FDMS86368-F085 and FDWS86368-F085.

Q: Can these devices handle 80A continuous current at all operating temperatures?

A: The continuous drain current rating of 80A applies at 25°C (Tc). At elevated junction temperatures, the maximum continuous current must be derated according to the thermal characteristics and power dissipation limits specified in the device datasheet. Both devices are rated for 214W maximum power dissipation.