FDI047AN08A0 Equivalent & Substitute Parts

Part Overview

The FDI047AN08A0 is an N-Channel MOSFET manufactured by onsemi, rated for 75V drain-to-source voltage and 80A continuous drain current in a Through Hole TO-262 (I2PAK) package. This device is part of the PowerTrench® series and is classified as obsolete. Due to its obsolete status, equivalent substitute parts are necessary for new designs and ongoing production requirements. Substitute devices must maintain electrical compatibility across critical parameters including voltage rating, current capacity, gate charge characteristics, and thermal performance while accommodating different package technologies.

Substiute Parts

FDI047AN08A0

onsemiIn Stock: 1235FDI047AN08A0 Datasheet

Current PartRFQ

BUK764R4-60E,118

Nexperia USA Inc.In Stock: 5558BUK764R4-60E,118 Datasheet

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IXFA220N06T3

IXYSIn Stock: 1311IXFA220N06T3 Datasheet

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IXTA200N055T2

IXYSIn Stock: 1593IXTA200N055T2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDI047AN08A0 is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: Substitute devices must have a Vdss rating equal to or greater than 75V. This ensures the MOSFET can withstand the same or higher drain-to-source voltage stress without breakdown.

Current Capacity: Substitute devices must have a continuous drain current (Id) rating equal to or greater than 80A at 25°C to maintain equivalent current-handling capability.

On-State Resistance (Rds On): The maximum on-state resistance must be comparable to or lower than 4.7 mOhm at the specified gate voltage and current conditions to ensure similar conduction losses and thermal performance.

Gate Charge (Qg): Gate charge values should be within a reasonable range of 138 nC to minimize switching losses and maintain compatible drive circuit requirements.

Input Capacitance (Ciss): Input capacitance should be comparable to 6600 pF to ensure compatible gate drive characteristics and switching behavior.

Operating Temperature Range: All substitute devices must support the full -55°C to 175°C operating temperature range.

Package Consideration: While the original part uses Through Hole TO-262 (I2PAK) mounting, substitute parts may use Surface Mount D2PAK or TO-263 packages, which are electrically equivalent but require different PCB layout and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

IXTA200N055T2 (IXYS): This device is classified as Active and ROHS3 Compliant. It provides 200A continuous drain current, exceeding the 80A requirement of the FDI047AN08A0. The Vdss rating of 55V is lower than the original 75V, making this substitute suitable only for applications where the actual operating voltage does not exceed 55V. Gate charge of 109 nC is lower than the original 138 nC, resulting in reduced switching losses. The Surface Mount TO-263AA package requires PCB redesign compared to the Through Hole TO-262 original.

BUK764R4-60E,118 (Nexperia USA Inc.): This device is classified as Active and ROHS3 Compliant with AEC-Q101 automotive qualification. It provides 100A continuous drain current, exceeding the 80A requirement. The Vdss rating of 60V is lower than the original 75V, limiting use to applications with maximum operating voltages of 60V. Gate charge of 82 nC is significantly lower than the original 138 nC. The Surface Mount D2PAK package requires PCB redesign. Automotive qualification provides additional reliability assurance for qualified applications.

IXFA220N06T3 (IXYS): This device is classified as Last Time Buy and ROHS3 Compliant. It provides 220A continuous drain current, significantly exceeding the 80A requirement. The Vdss rating of 60V is lower than the original 75V, restricting use to applications with maximum operating voltages of 60V. Gate charge of 136 nC closely matches the original 138 nC. Input capacitance of 8500 pF is higher than the original 6600 pF, potentially requiring gate drive circuit adjustments. The Surface Mount TO-263 package requires PCB redesign. Last Time Buy status indicates limited future availability.

All substitute devices maintain the full -55°C to 175°C operating temperature range and ±20V maximum gate voltage specification of the original part.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the FDI047AN08A0 with any of these substitute parts?

A: Direct replacement depends on your application's voltage requirements. The FDI047AN08A0 is rated for 75V, while all three substitute parts are rated for 55V or 60V. If your circuit operates at voltages exceeding 60V, none of these substitutes are suitable. If your maximum operating voltage is 60V or lower, electrical substitution is possible, but package conversion from Through Hole to Surface Mount is required.

Q: What is the impact of lower Vdss ratings on my circuit?

A: A lower Vdss rating means the MOSFET has reduced voltage withstand capability. Using a 60V-rated device in a circuit designed for 75V operation creates risk of gate-drain breakdown and device failure. Verify your actual maximum drain-to-source voltage before selecting a substitute with lower Vdss rating.

Q: How do differences in gate charge affect my gate drive circuit?

A: Gate charge determines the energy required to switch the MOSFET on and off. The BUK764R4-60E,118 has significantly lower gate charge (82 nC versus 138 nC), requiring less drive energy and potentially allowing faster switching. The IXTA200N055T2 and IXFA220N06T3 have comparable gate charge values. Verify your gate drive circuit can accommodate these differences, particularly if using fixed-frequency PWM controllers.

Q: What are the package conversion implications?

A: The original FDI047AN08A0 uses Through Hole TO-262 (I2PAK) mounting, while all substitutes use Surface Mount packages (D2PAK or TO-263). This requires complete PCB redesign, including pad layout, trace routing, and thermal management considerations. Surface Mount packages typically offer better thermal performance due to direct PCB contact, but require different assembly processes.

Q: Why is the IXFA220N06T3 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this product. While currently available, future procurement may become impossible. For new designs requiring long-term component availability, the Active-status IXTA200N055T2 or BUK764R4-60E,118 are preferred.

Q: Are these substitutes suitable for automotive applications?

A: The BUK764R4-60E,118 carries AEC-Q101 automotive qualification, making it suitable for automotive applications meeting this standard. The IXTA200N055T2 and IXFA220N06T3 do not specify automotive qualification. Verify your application's qualification requirements before selecting a substitute.

Q: How do I verify thermal performance with these substitutes?

A: Compare power dissipation ratings and thermal resistance specifications. The FDI047AN08A0 is rated for 310W maximum dissipation. The IXTA200N055T2 (360W), IXFA220N06T3 (440W), and BUK764R4-60E,118 (234W) have different thermal capabilities. Verify that your thermal management design (heatsinking, PCB copper area) accommodates the selected substitute's thermal characteristics.

Q: What compliance certifications should I verify?

A: All substitute parts are ROHS3 Compliant and REACH Unaffected, matching the original part's compliance status. The BUK764R4-60E,118 additionally carries AEC-Q101 automotive qualification. Verify these certifications meet your application's regulatory and customer requirements.