IXTA100N04T2 Equivalent & Substitute Parts

Part Overview

The IXTA100N04T2 is an N-Channel MOSFET manufactured by IXYS, rated for 40V drain-to-source voltage with 100A continuous drain current at 25°C. This device operates in the TrenchT2™ series and is housed in a Surface Mount TO-263AA package. The part is Active status and RoHS3 compliant.

Substitute parts are necessary when the primary part is unavailable, when inventory constraints require alternative sourcing, or when design flexibility permits selection from qualified alternatives that meet the same electrical and mechanical specifications within defined tolerances.

Substiute Parts

IXTA100N04T2

IXYSIn Stock: 2810IXTA100N04T2 Datasheet

Current PartRFQ

BUK765R2-40B,118

NXP USA Inc.In Stock: 24087BUK765R2-40B,118 Datasheet

SimilarRFQ

BUK9609-40B,118

Nexperia USA Inc.In Stock: 6360BUK9609-40B,118 Datasheet

SimilarRFQ

FDB8444

Fairchild SemiconductorIn Stock: 15376FDB8444 Datasheet

SimilarRFQ

PSMN8R0-40BS,118

Nexperia USA Inc.In Stock: 1753PSMN8R0-40BS,118 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXTA100N04T2 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Drain to Source Voltage (Vdss): Must equal 40V
• Mounting Type: Must be Surface Mount
• Package / Case: Must be compatible with TO-263-3, D2PAK (2 Leads + Tab), or TO-263AB
• Operating Temperature Range: Must span -55°C to 175°C (TJ)
• Gate Voltage (Vgs Max): Must support ±20V or greater

Performance Considerations:

• Current - Continuous Drain (Id) @ 25°C: Substitute parts rated at 70A or higher are electrically compatible
• Rds On (Max): Substitute parts with equal or lower on-resistance values maintain or improve performance
• Power Dissipation (Max): Substitute parts with equal or higher power dissipation ratings are acceptable
• Gate Charge (Qg): Lower values indicate faster switching characteristics

All substitute parts listed are N-Channel MOSFETs with identical Vdss ratings and compatible packaging. Differences in continuous drain current, on-resistance, and power dissipation reflect design variations across manufacturers while maintaining functional equivalence for applications within the IXTA100N04T2 specification envelope.

Parameter Comparison

Engineering Selection Recommendations

IXTA100N04T2 (Primary Part)

• Active product status with full inventory availability (2704 pcs)
• RoHS3 compliant and REACH unaffected
• MSL Level 1 (unlimited moisture sensitivity)
• Highest continuous drain current rating (100A) among all listed parts
• Suitable for applications requiring maximum current capacity within the 40V specification

BUK765R2-40B,118 (NXP USA Inc.)

• Active product status with high inventory (23999 pcs)
• Automotive grade with AEC-Q101 qualification
• Highest power dissipation rating (203W)
• Lower on-resistance (5.2 mOhm) improves thermal efficiency
• Reduced continuous drain current (75A) requires verification for current-limited applications

BUK9609-40B,118 (Nexperia USA Inc.)

• Active product status with moderate inventory (6346 pcs)
• Automotive grade with AEC-Q101 qualification
• Tape & Reel packaging for automated assembly
• Matched on-resistance to primary part (7 mOhm)
• Lower gate charge (32 nC @ 5V) enables faster switching
• Reduced maximum gate voltage (±15V) requires circuit compatibility verification

FDB8444 (Fairchild Semiconductor)

• Active product status with high inventory (15365 pcs)
• PowerTrench® series technology
• Lowest continuous drain current (70A) among substitutes
• Significantly higher gate charge (128 nC) indicates slower switching characteristics
• Suitable for applications with reduced current requirements

PSMN8R0-40BS,118 (Nexperia USA Inc.)

• Active product status with limited inventory (1669 pcs)
• Tape & Reel packaging for automated assembly
• Lowest power dissipation rating (86W) restricts thermal headroom
• Lowest gate charge (21 nC) enables fastest switching performance
• Reduced continuous drain current (77A) and power dissipation require thermal analysis

Frequently Asked Questions (FAQ)

Q: Can the IXTA100N04T2 be directly replaced with any of these substitute parts?

A: Direct replacement is possible only when the application current requirement does not exceed the substitute part's continuous drain current rating. The IXTA100N04T2 is rated for 100A continuous drain current. Substitute parts rated at 70A, 75A, or 77A are suitable for applications drawing 70A or less. Applications requiring the full 100A rating cannot use lower-rated substitutes.

Q: What is the significance of the on-resistance (Rds On) difference between parts?

A: On-resistance directly affects power dissipation and thermal performance. Lower on-resistance values (such as BUK765R2-40B,118 at 5.2 mOhm) generate less heat during operation compared to higher values. The IXTA100N04T2 and BUK9609-40B,118 both specify 7 mOhm, providing identical thermal characteristics at equivalent current levels.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All listed parts use Surface Mount packaging with TO-263-3, D2PAK (2 Leads + Tab), or TO-263AB case designations. PCB footprints and thermal pad dimensions are standardized across these package types, allowing direct physical substitution without layout modification.

Q: What does the gate charge (Qg) parameter indicate?

A: Gate charge represents the total charge required to switch the MOSFET from off to on state. Lower gate charge values enable faster switching transitions and reduce driver power consumption. PSMN8R0-40BS,118 (21 nC) switches fastest, while FDB8444 (128 nC) switches slowest. This affects circuit performance in high-frequency switching applications.

Q: Which substitute parts carry automotive qualification?

A: BUK765R2-40B,118 and BUK9609-40B,118 both carry Automotive grade designation with AEC-Q101 qualification. These parts are suitable for automotive applications requiring industry-standard reliability and qualification documentation. The primary part (IXTA100N04T2) and other substitutes do not specify automotive qualification.

Q: What is the impact of different maximum gate voltage (Vgs Max) ratings?

A: The IXTA100N04T2, BUK765R2-40B,118, FDB8444, and PSMN8R0-40BS,118 all support ±20V maximum gate voltage. BUK9609-40B,118 supports only ±15V. Applications using gate drive circuits that exceed ±15V require verification before substituting with BUK9609-40B,118.

Q: How does power dissipation rating affect part selection?

A: Power dissipation rating indicates the maximum thermal load the device can sustain at the case temperature (Tc). Higher ratings provide greater thermal margin. BUK765R2-40B,118 (203W) offers the highest margin, while PSMN8R0-40BS,118 (86W) offers the lowest. Applications with high continuous current or high switching frequency require parts with adequate power dissipation ratings to prevent thermal shutdown.

Q: Are all substitute parts RoHS3 compliant?

A: IXTA100N04T2, BUK9609-40B,118, and PSMN8R0-40BS,118 explicitly specify RoHS3 compliance. BUK765R2-40B,118 and FDB8444 do not specify RoHS status in the provided data. Applications requiring RoHS3 compliance should confirm compliance status with the manufacturer before selection.

Q: What inventory considerations apply to these parts?

A: The primary part (IXTA100N04T2) has 2704 pcs available. BUK765R2-40B,118 offers the highest inventory (23999 pcs), while PSMN8R0-40BS,118 has the lowest (1669 pcs). Inventory levels affect lead time and availability for high-volume production requirements.