IXFH30N40Q Equivalent & Substitute Parts

Part Overview

The IXFH30N40Q is an N-Channel MOSFET manufactured by IXYS, rated for 400V drain-to-source voltage with 30A continuous drain current at 25°C. This device is housed in a TO-247AD through-hole package and is part of the HiPerFET™ series. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing system support, maintenance, and new design implementations where legacy component replacement is required.

Substiute Parts

IXFH30N40Q

IXYSIn Stock: 6475IXFH30N40Q Datasheet

Current PartRFQ

APT5016BLLG

Microchip TechnologyIn Stock: 769APT5016BLLG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXFH30N40Q is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• FET Type: Must be N-Channel MOSFET
• Drain to Source Voltage (Vdss): Minimum 400V (equal or higher voltage rating acceptable)
• Continuous Drain Current (Id) @ 25°C: Minimum 30A (equal or higher current rating acceptable)
• Rds On (Max) @ Id, Vgs: Maximum 160 mOhm @ 15A, 10V (equal or lower on-resistance acceptable)
• Power Dissipation (Max): Minimum 300W (Tc) (equal or higher power rating acceptable)
• Operating Temperature Range: -55°C to 150°C (TJ) (equal or wider range acceptable)

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: TO-247-3 (physical pin configuration and footprint compatibility)

The APT5016BLLG from Microchip Technology meets all substitution criteria with equal or superior electrical ratings and compatible through-hole packaging.

Parameter Comparison

Engineering Selection Recommendations

The APT5016BLLG is a direct substitute for the IXFH30N40Q based on the following factors:

Electrical Equivalence: The APT5016BLLG meets or exceeds all critical electrical parameters. The substitute device is rated for 500V Vdss (100V higher than the original), 30A continuous drain current (equal), 160 mOhm Rds On (equal), and 329W power dissipation (29W higher than the original). These superior ratings ensure the substitute operates within or below the thermal and electrical stress levels of the original design.

Thermal Compatibility: Both devices operate across the identical temperature range of -55°C to 150°C (TJ), ensuring thermal performance equivalence in the application.

Mechanical Compatibility: Both devices use TO-247-3 through-hole packaging, providing direct physical and electrical pin compatibility for PCB mounting and circuit integration.

Product Status and Availability: The IXFH30N40Q is obsolete with no ongoing manufacturing. The APT5016BLLG is an active product from Microchip Technology with current production and documented availability, ensuring long-term supply chain reliability.

Compliance: The APT5016BLLG is RoHS3 compliant and REACH unaffected, meeting modern regulatory requirements for electronic components.

Frequently Asked Questions (FAQ)

Q: Can the APT5016BLLG be used as a direct replacement for the IXFH30N40Q in existing designs?

A: Yes. The APT5016BLLG is electrically and mechanically compatible. Both devices are N-Channel MOSFETs with identical continuous drain current (30A), on-resistance (160 mOhm @ 15A, 10V), operating temperature range (-55°C to 150°C), and TO-247-3 package configuration. The substitute is rated for higher voltage (500V vs. 400V) and higher power dissipation (329W vs. 300W), making it suitable for the same application circuit.

Q: What is the significance of the higher Vdss rating on the APT5016BLLG?

A: The APT5016BLLG is rated for 500V drain-to-source voltage compared to the IXFH30N40Q's 400V rating. This higher voltage rating provides additional design margin and does not negatively impact performance in applications designed for 400V operation. The device will operate safely at or below 400V.

Q: Are the gate charge characteristics equivalent between these devices?

A: Gate charge differs between the devices. The IXFH30N40Q has a maximum gate charge of 95 nC @ 10V, while the APT5016BLLG has 72 nC @ 10V. The lower gate charge on the substitute may result in faster switching characteristics and reduced gate drive power requirements, which is beneficial for most applications.

Q: Is the TO-247-3 package identical between both devices?

A: Both devices use TO-247-3 through-hole packaging with identical pin configuration and footprint. Direct PCB mounting compatibility is confirmed without modification to existing circuit board layouts.

Q: What is the difference in input capacitance between these devices?

A: The IXFH30N40Q has a maximum input capacitance of 3300 pF @ 25V, while the APT5016BLLG has 2833 pF @ 25V. The lower input capacitance on the substitute may result in improved high-frequency switching performance and reduced gate drive circuit loading.

Q: Is the APT5016BLLG available in the same packaging format as the IXFH30N40Q?

A: The IXFH30N40Q is supplied in TO-247AD (IXFH) packaging, while the APT5016BLLG is supplied in TO-247 [B] packaging. Both are TO-247-3 case styles with identical pin configurations and through-hole mounting compatibility. The packaging designation difference reflects manufacturer-specific labeling conventions and does not affect electrical or mechanical compatibility.

Q: What is the product status difference, and why does it matter?

A: The IXFH30N40Q is obsolete and no longer manufactured by IXYS. The APT5016BLLG is an active product currently manufactured by Microchip Technology. For new designs, maintenance, and long-term system support, the active product ensures ongoing availability and supply chain continuity.