IXTH160N075T N-Channel MOSFET 75V 160A Equivalent & Substitute Parts

Part Overview

The IXTH160N075T is an N-Channel MOSFET manufactured by IXYS, rated for 75V drain-to-source voltage and 160A continuous drain current at 25°C. This device is housed in a TO-247 package and is designed for high-current switching applications requiring through-hole mounting. The part is currently listed as obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	75	V
Continuous Drain Current (Id) @ 25°C	160	A
On-State Resistance (Rds On Max) @ 25A, 10V	6	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 10V	112	nC
Power Dissipation (Max)	360	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-247	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the IXTH160N075T is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: All substitute parts must maintain the same 75V drain-to-source voltage (Vdss) rating to ensure safe operation within the same circuit topology.

Current Handling Capability: Substitute parts must support continuous drain current (Id) at or above 160A at 25°C. Parts with higher current ratings provide design margin and improved thermal performance.

On-State Resistance (Rds On): Lower Rds On values reduce conduction losses and heat dissipation, improving overall system efficiency. Substitutes with Rds On values at or below 6 mOhm at the specified gate voltage are considered compatible.

Gate Charge (Qg): Gate charge affects switching speed and driver circuit requirements. Substitutes with gate charge values within the range of the original part maintain compatible gate drive characteristics.

Threshold Voltage (Vgs(th)): All substitutes must maintain the same 4V threshold voltage at 250µA to ensure consistent gate drive compatibility.

Package and Mounting: All substitute parts utilize TO-247 through-hole packaging, maintaining mechanical and thermal interface compatibility with existing PCB designs.

Operating Temperature Range: All substitutes maintain the -55°C to 175°C operating temperature range, ensuring thermal performance equivalence.

Parameter Comparison

Parameter	IXTH160N075T	IXFH230N075T2	IRFP3077PBF
Manufacturer	IXYS	IXYS	Infineon Technologies
Drain to Source Voltage (Vdss)	75 V	75 V	75 V
Continuous Drain Current (Id) @ 25°C	160 A	230 A	120 A
Rds On (Max) @ 10V	6 mOhm @ 25A	4.2 mOhm @ 50A	3.3 mOhm @ 75A
Gate Threshold Voltage (Vgs(th)) @ 250µA	4 V	4 V	4 V
Gate Charge (Qg) @ 10V	112 nC	178 nC	220 nC
Input Capacitance (Ciss) @ Vds	4950 pF @ 25V	10500 pF @ 25V	9400 pF @ 50V
Power Dissipation (Max)	360 W	480 W	340 W
Operating Temperature Range	-55 to 175 °C	-55 to 175 °C	-55 to 175 °C
Package Type	TO-247	TO-247AD	TO-247AC
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

IXFH230N075T2 (IXYS): This part is recommended as the primary substitute for the IXTH160N075T. It maintains identical voltage and threshold voltage specifications while providing 230A continuous drain current, exceeding the original 160A rating. The lower on-state resistance (4.2 mOhm) reduces conduction losses. The part is currently in active production status with ROHS3 compliance certification. The TO-247AD package variant is mechanically compatible with TO-247 footprints. Higher gate charge (178 nC) requires verification of gate driver capability but remains within acceptable switching frequency ranges for most applications.

IRFP3077PBF (Infineon Technologies): This part provides an alternative from a different manufacturer with active product status and ROHS3 compliance. The 120A continuous drain current rating is below the original 160A specification, making this substitute suitable only for applications where the actual operating current does not exceed 120A. The superior on-state resistance (3.3 mOhm) offers improved efficiency. The significantly higher gate charge (220 nC) may require gate driver circuit modifications. The TO-247AC package is mechanically compatible with the original TO-247 footprint.

Product Status Consideration: Both substitute parts are in active production, ensuring long-term availability and supply chain stability compared to the obsolete IXTH160N075T.

Compliance Status: Both substitutes carry ROHS3 compliance certification, meeting modern environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the IXFH230N075T2 directly replace the IXTH160N075T in existing designs?

A: The IXFH230N075T2 is electrically compatible with the IXTH160N075T for applications operating at or below 160A continuous drain current. The TO-247AD package is mechanically compatible with TO-247 PCB footprints. Gate driver circuits must support the higher gate charge (178 nC versus 112 nC) to maintain switching performance. Thermal design should account for the improved efficiency from lower on-state resistance.

Q: What is the primary difference between the IXFH230N075T2 and IRFP3077PBF?

A: Both parts maintain the 75V voltage rating and 4V threshold voltage. The IXFH230N075T2 provides 230A continuous drain current with 4.2 mOhm on-state resistance, while the IRFP3077PBF provides 120A with 3.3 mOhm on-state resistance. The IRFP3077PBF is suitable only for applications where actual operating current does not exceed 120A. The IRFP3077PBF has significantly higher gate charge (220 nC), requiring gate driver verification.

Q: Are there package compatibility concerns when substituting these parts?

A: All three parts use TO-247 package variants (TO-247, TO-247AD, TO-247AC). These variants are mechanically compatible with standard TO-247 PCB footprints and mounting hardware. Thermal interface materials and heatsink mounting remain unchanged.

Q: How does gate charge affect the substitution decision?

A: Gate charge determines the energy required to switch the MOSFET and affects switching frequency capability. The IXTH160N075T has 112 nC gate charge. The IXFH230N075T2 has 178 nC, and the IRFP3077PBF has 220 nC. Higher gate charge requires gate drivers with sufficient current output. Applications operating at high switching frequencies may experience increased gate driver power dissipation with higher gate charge substitutes.

Q: Which substitute is recommended for new designs?

A: The IXFH230N075T2 is recommended for new designs. It provides superior current handling (230A), lower on-state resistance (4.2 mOhm), active product status, and ROHS3 compliance. The IRFP3077PBF is suitable only when application current requirements do not exceed 120A.

Q: What compliance certifications do the substitute parts carry?

A: Both IXFH230N075T2 and IRFP3077PBF carry ROHS3 compliance certification. Both are REACH Unaffected and classified as EAR99 for export control purposes. Both carry HTSUS code 8541.29.0095.

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