IXBF12N300 Equivalent & Substitute Parts

Part Overview

The IXBF12N300 is an IGBT (Insulated Gate Bipolar Transistor) rated for 3000 V collector-emitter breakdown voltage with a maximum collector current of 26 A and 125 W power dissipation. The device features the ISOPLUS i4-PAC™ package configuration with through-hole mounting. This component is classified as "Not For New Designs," indicating it has reached end-of-life status within the IXYS product portfolio. Identification of equivalent substitute parts is necessary for applications requiring continued supply or design migration to active product lines.

Substiute Parts

IXBF12N300

IXYSIn Stock: 1293IXBF12N300 Datasheet

Current PartRFQ

IXBH20N300

IXYSIn Stock: 52725IXBH20N300 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXBF12N300 is determined by electrical and mechanical compatibility within the IXYS BIMOSFET™ series. The critical substitution parameters are:

Electrical Compatibility:

• Voltage - Collector Emitter Breakdown (Max): Must equal or exceed 3000 V
• Input Type: Must be Standard (gate drive compatibility)
• Operating Temperature Range: Must encompass -55°C to 150°C (TJ)
• RoHS and REACH compliance status must match or exceed the original specification

Mechanical Compatibility:

• Mounting Type: Through Hole (required for PCB integration)
• Supplier Device Package: Must be compatible with circuit board layout and thermal management requirements

The IXBH20N300 qualifies as a substitute part because it maintains identical voltage rating (3000 V), identical input type (Standard), identical operating temperature range (-55°C to 150°C), and equivalent compliance certifications (ROHS3 Compliant, REACH Unaffected). The package transition from ISOPLUS i4-PAC™ to TO-247AD represents a mechanical change that requires PCB layout evaluation but does not affect electrical substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

IXBH20N300 as Primary Substitute:

The IXBH20N300 is the qualified substitute for the IXBF12N300 based on electrical equivalence and active product status. Both devices maintain identical voltage ratings (3000 V), identical input type (Standard), and identical operating temperature ranges (-55°C to 150°C). Both components carry ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment.

The IXBH20N300 offers enhanced electrical performance characteristics: maximum collector current of 50 A (versus 26 A), pulsed collector current of 140 A (versus 98 A), and maximum power dissipation of 250 W (versus 125 W). These parameters represent design margin improvements suitable for applications requiring higher current handling or thermal capacity.

The primary design consideration is the package transition from ISOPLUS i4-PAC™ to TO-247AD. This change requires PCB layout modification to accommodate the different footprint and lead configuration. Thermal management characteristics differ between packages and must be evaluated for the specific application thermal environment.

The IXBH20N300 carries Active product status, ensuring continued availability and manufacturer support, whereas the IXBF12N300 is classified as "Not For New Designs," making substitution necessary for long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the IXBH20N300 directly replace the IXBF12N300 without circuit modification?

A: Electrical substitution is valid without circuit modification. Both devices operate at identical voltage ratings (3000 V), identical gate drive requirements (Standard input type), and identical temperature ranges (-55°C to 150°C). However, the package change from ISOPLUS i4-PAC™ to TO-247AD requires PCB layout modification. The different footprint and lead spacing necessitate redesign of the mounting area and thermal management structure.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: (1) Voltage - Collector Emitter Breakdown rating must equal or exceed 3000 V, (2) Input Type must be Standard for gate drive compatibility, (3) Operating Temperature Range must encompass -55°C to 150°C (TJ), and (4) RoHS and REACH compliance status must match or exceed the original specification. The IXBH20N300 satisfies all these criteria.

Q: Does the higher current rating of the IXBH20N300 (50 A vs. 26 A) affect circuit compatibility?

A: Higher current ratings do not create incompatibility. The IXBH20N300 can operate at the same current levels as the IXBF12N300 without adverse effects. The increased current capability provides design margin and allows for potential future application scaling. Gate charge is higher (105 nC versus 62 nC), which may require gate driver evaluation for switching speed performance, but does not prevent substitution.

Q: What is the significance of the package change from ISOPLUS i4-PAC™ to TO-247AD?

A: The package change affects mechanical integration and thermal management. The ISOPLUS i4-PAC™ is a 3-lead through-hole package with specific footprint dimensions, while the TO-247AD is a standard 3-lead through-hole package with different lead spacing and mounting geometry. PCB layout must be redesigned to accommodate the new footprint. Thermal performance may differ due to variations in lead configuration and heat dissipation path design.

Q: Why is the IXBF12N300 classified as "Not For New Designs"?

A: "Not For New Designs" status indicates the component has reached end-of-life within the manufacturer's product portfolio. This classification signals that the device will not receive design updates, performance improvements, or extended availability guarantees. The IXBH20N300, classified as Active, represents the current generation equivalent with ongoing manufacturer support and supply continuity.

Q: Are there compliance or regulatory differences between the two parts?

A: Both the IXBF12N300 and IXBH20N300 carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and Moisture Sensitivity Level 1 (Unlimited). No regulatory or compliance barriers exist to substitution.

Q: What inventory considerations apply to substitution?

A: The IXBF12N300 has 1190 pieces in stock, while the IXBH20N300 has 52688 pieces in stock. The significantly higher inventory level for the IXBH20N300 indicates stronger supply availability and reduced lead time risk for future procurement.