IXGK120N60C2 Equivalent & Substitute Parts

Part Overview

The IXGK120N60C2 is an IGBT (Insulated Gate Bipolar Transistor) rated for 600V collector-emitter breakdown voltage with a maximum collector current of 75A and power dissipation of 830W. Manufactured by IXYS, this device features the HiPerFAST™ and Lightspeed 2™ series technology in a through-hole TO-264 package configuration.

The IXGK120N60C2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

IXGK120N60C2

IXYSIn Stock: 779IXGK120N60C2 Datasheet

Current PartRFQ

FGH40N60SMD-F085

onsemiIn Stock: 800FGH40N60SMD-F085 Datasheet

SimilarRFQ

NGTB40N60L2WG

onsemiIn Stock: 812NGTB40N60L2WG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXGK120N60C2 is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain the 600V collector-emitter breakdown voltage specification to ensure safe operation within the original circuit design envelope.

Current Rating: Substitute parts must support a minimum collector current (Ic) rating equal to or exceeding 75A. The provided substitute parts (FGH40N60SMD-F085 and NGTB40N60L2WG) both specify 80A maximum collector current, meeting this requirement.

Power Dissipation: While the original part specifies 830W maximum power, substitute parts with lower power ratings (349W and 417W respectively) remain functionally compatible when thermal management and circuit operating conditions are appropriately considered.

Package Type: All substitute parts utilize through-hole mounting technology. The IXGK120N60C2 uses TO-264 packaging, while substitute parts use TO-247-3 packaging. Both are through-hole configurations suitable for PCB integration.

Input Type: All parts maintain Standard input type gate drive compatibility.

Operating Temperature Range: Substitute parts support extended temperature ranges (-55°C to 175°C) compared to the original part (-55°C to 150°C), providing enhanced thermal margin.

Parameter Comparison

Engineering Selection Recommendations

FGH40N60SMD-F085 (onsemi): This substitute part is classified as Active product status, ensuring ongoing availability and manufacturer support. The device carries AEC-Q101 automotive qualification and is RoHS3 compliant, meeting stringent regulatory requirements. The FGH40N60SMD-F085 features Field Stop IGBT technology with reduced switching energy (920µJ on, 300µJ off) compared to the original part, resulting in lower switching losses. The lower gate charge (180nC) and faster switching times (18ns on, 110ns off) provide improved efficiency characteristics. The extended operating temperature range (-55°C to 175°C) exceeds the original specification. Package transition from TO-264 to TO-247-3 requires PCB layout modification.

NGTB40N60L2WG (onsemi): This substitute part is classified as Obsolete product status. The device is RoHS3 compliant and features Trench Field Stop IGBT technology. The NGTB40N60L2WG provides intermediate switching energy characteristics (1.17mJ on, 280µJ off) between the original part and the FGH40N60SMD-F085. The gate charge (228nC) and switching times (98ns on, 213ns off) represent a middle ground in performance characteristics. The extended operating temperature range (-55°C to 175°C) provides thermal margin beyond the original specification. Like the FGH40N60SMD-F085, this part requires package transition from TO-264 to TO-247-3.

For new designs and ongoing production requiring long-term supply assurance, the FGH40N60SMD-F085 is the preferred selection due to its Active product status and automotive qualification. The NGTB40N60L2WG serves as an alternative where existing inventory or specific performance characteristics align with application requirements, though its Obsolete status limits long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the FGH40N60SMD-F085 directly replace the IXGK120N60C2 without circuit modifications?

A: The FGH40N60SMD-F085 maintains electrical compatibility in terms of voltage rating (600V), collector current (80A exceeds 75A requirement), and gate drive input type (Standard). However, the package transition from TO-264 to TO-247-3 requires PCB layout modification. The reduced switching energy and gate charge may improve circuit efficiency but do not prevent direct functional substitution.

Q: What are the implications of the lower power rating in substitute parts?

A: The FGH40N60SMD-F085 specifies 349W maximum power dissipation compared to 830W for the original part. This reflects differences in thermal packaging and test conditions rather than functional capability. Circuit thermal management design must account for the specific power dissipation characteristics of the selected substitute part.

Q: How do switching energy differences affect circuit performance?

A: The substitute parts exhibit lower switching energy values. The FGH40N60SMD-F085 demonstrates 920µJ on-switching and 300µJ off-switching energy compared to 1.7mJ and 1mJ respectively for the original part. Lower switching energy reduces power loss during transitions, potentially improving overall circuit efficiency. Gate drive circuits must accommodate the different gate charge requirements (180nC for FGH40N60SMD-F085 versus 370nC for the original part).

Q: Are there thermal management considerations for package transition?

A: The transition from TO-264 to TO-247-3 packaging affects thermal interface characteristics. Both packages are through-hole configurations suitable for PCB mounting with heatsinks. Thermal design calculations must reference the specific thermal resistance specifications of the selected substitute part and heatsink interface.

Q: What is the significance of IGBT type differences (PT versus Field Stop)?

A: The original IXGK120N60C2 uses Punch Through (PT) technology, while substitute parts employ Field Stop or Trench Field Stop technology. These represent different semiconductor manufacturing approaches. Field Stop technology typically provides improved switching characteristics and lower switching losses, as evidenced by the reduced switching energy values in the substitute parts.

Q: Does the extended operating temperature range of substitute parts provide additional design margin?

A: The substitute parts support operating temperatures up to 175°C compared to 150°C for the original part. This extended range provides additional thermal margin for applications operating near maximum junction temperature limits. Circuit design must still ensure junction temperature remains within the specified operating range.

Q: What compliance certifications should be considered for part selection?

A: The FGH40N60SMD-F085 carries AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability standards. Both substitute parts are RoHS3 compliant. The original IXGK120N60C2 is REACH Unaffected, as are both substitute parts. Selection should consider application-specific compliance requirements.