IXTA90N075T2 Equivalent & Substitute Parts

Part Overview

The IXTA90N075T2 is an N-Channel MOSFET manufactured by IXYS, part of the TrenchT2™ series. This device is rated for 75V drain-to-source voltage with 90A continuous drain current and 180W maximum power dissipation in a surface mount TO-263AA package. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical performance is required due to component availability, supply chain constraints, or design flexibility within specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	75	V
Continuous Drain Current (Id) @ 25°C	90	A
Rds On (Max) @ 25A, 10V	10	mOhm
Power Dissipation (Max)	180	W
Gate Charge (Qg) @ 10V	54	nC
Input Capacitance (Ciss) @ 25V	3290	pF
Operating Temperature Range	-55 to 175	°C
Package Type	TO-263-3 (D2PAK)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Voltage Rating (Vdss): Substitute parts must equal or exceed the 75V rating of the IXTA90N075T2. Parts rated at 80V are acceptable as they provide margin above the original specification.

Continuous Drain Current (Id): Substitute parts must deliver 90A or greater at 25°C to maintain equivalent current-handling capability. Parts rated at 75A or 80A do not meet this requirement and are not suitable for direct substitution in applications requiring full 90A performance.

On-Resistance (Rds On): Substitute parts must maintain comparable on-resistance characteristics to ensure thermal performance and power dissipation remain within acceptable limits. The reference specification is 10mOhm at 25A, 10V.

Package Compatibility: All substitute parts must use the D2PAK (TO-263-3) surface mount package to ensure mechanical and thermal compatibility with existing PCB layouts.

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

Compliance Status: All substitute parts must maintain RoHS3 compliance and REACH unaffected status.

Parameter Comparison

Parameter	IXTA90N075T2	IRFS3607TRLPBF	IRL3705ZSTRLPBF	PSMN008-75B,118	PSMN012-80BS,118	PSMN8R7-80BS,118	STB75NF75LT4	STB75NF75T4
Manufacturer	IXYS	Infineon	Infineon	Nexperia	Nexperia	Nexperia	STMicroelectronics	STMicroelectronics
Vdss (V)	75	75	55	75	80	80	75	75
Id @ 25°C (A)	90	80	75	75	74	90	75	80
Rds On (mOhm)	10 @ 25A	9 @ 46A	8 @ 52A	8.5 @ 25A	11 @ 15A	8.7 @ 10A	11 @ 37.5A	11 @ 40A
Power Dissipation (W)	180	140	130	230	148	170	300	300
Gate Charge (nC)	54 @ 10V	84 @ 10V	60 @ 5V	122.8 @ 10V	43 @ 10V	52 @ 10V	90 @ 5V	160 @ 10V
Ciss (pF)	3290 @ 25V	3070 @ 50V	2880 @ 25V	5260 @ 25V	2782 @ 12V	3346 @ 40V	4300 @ 25V	3700 @ 25V
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-263-3	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3

Engineering Selection Recommendations

Direct Substitutes (Full Electrical Equivalence):

PSMN8R7-80BS,118 (Nexperia) is the primary substitute. This part matches the 90A continuous drain current specification and exceeds the 75V voltage rating at 80V. The on-resistance of 8.7mOhm at 10A is superior to the original specification. Power dissipation of 170W is lower than the original 180W but remains adequate for equivalent thermal management. All compliance certifications (RoHS3, REACH unaffected) are maintained. This part is available in Tape & Reel packaging with 6265 units in stock.

Secondary Substitutes (Reduced Current Capability):

IRFS3607TRLPBF (Infineon) provides 80A continuous drain current, which is 10A below the original specification. Voltage rating matches at 75V. On-resistance of 9mOhm at 46A is comparable. Power dissipation of 140W is reduced. This part is suitable only for applications where 80A operation is acceptable. Available in Cut Tape & Digi-Reel with 32500 units in stock.

STB75NF75T4 (STMicroelectronics) provides 80A continuous drain current with 75V voltage rating. On-resistance of 11mOhm at 40A is slightly higher. Power dissipation of 300W exceeds the original specification, providing thermal margin. Gate charge of 160nC is significantly higher, affecting switching speed. Available in Cut Tape & Digi-Reel with 43400 units in stock.

Not Recommended for Direct Substitution:

IRL3705ZSTRLPBF has a reduced voltage rating of 55V, which is below the 75V requirement and creates electrical incompatibility.

PSMN012-80BS,118 provides only 74A continuous drain current, falling short of the 90A specification.

PSMN008-75B,118 provides only 75A continuous drain current, falling short of the 90A specification.

STB75NF75LT4 provides only 75A continuous drain current, falling short of the 90A specification.

Frequently Asked Questions (FAQ)

Q: Can PSMN8R7-80BS,118 be used as a direct replacement for IXTA90N075T2?

A: Yes. PSMN8R7-80BS,118 meets all critical electrical parameters: 90A continuous drain current, 80V voltage rating (exceeds 75V requirement), comparable on-resistance, and identical operating temperature range. Package compatibility is confirmed (D2PAK). RoHS3 and REACH compliance are maintained.

Q: Why is IRL3705ZSTRLPBF not suitable as a substitute?

A: IRL3705ZSTRLPBF has a maximum drain-to-source voltage rating of 55V, which is below the 75V requirement of the IXTA90N075T2. This creates an electrical incompatibility that prevents direct substitution.

Q: What is the impact of using IRFS3607TRLPBF instead of IXTA90N075T2?

A: IRFS3607TRLPBF provides 80A continuous drain current instead of 90A. Applications requiring the full 90A specification cannot use this part. For designs operating at 80A or below, this part is electrically compatible with matching voltage rating, comparable on-resistance, and identical temperature range.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts listed use the D2PAK (TO-263-3) surface mount package, ensuring mechanical and thermal compatibility with existing PCB layouts designed for the IXTA90N075T2.

Q: Do substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts are RoHS3 compliant and REACH unaffected, matching the compliance status of the IXTA90N075T2.

Q: How does gate charge affect the choice of substitute?

A: Gate charge influences switching speed and driver circuit requirements. PSMN8R7-80BS,118 has 52nC (similar to original 54nC), making it compatible with existing gate driver designs. STB75NF75T4 has 160nC, which is significantly higher and may require gate driver circuit adjustments.

Q: What is the difference between PSMN012-80BS,118 and PSMN8R7-80BS,118?

A: PSMN012-80BS,118 provides 74A continuous drain current and 80V voltage rating. PSMN8R7-80BS,118 provides 90A continuous drain current and 80V voltage rating. For applications requiring 90A, only PSMN8R7-80BS,118 is suitable.

Q: Can STB75NF75T4 be used in high-frequency switching applications?

A: STB75NF75T4 has a gate charge of 160nC, which is significantly higher than the original 54nC. This higher gate charge results in slower switching transitions and increased switching losses in high-frequency applications. PSMN8R7-80BS,118 with 52nC gate charge is better suited for high-frequency operation.

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