IRG4PC50U IGBT Equivalent & Substitute Parts

Part Overview

The IRG4PC50U is a 600V, 55A IGBT manufactured by Infineon Technologies in TO-247AC packaging. This device is classified as obsolete, making substitute part identification essential for ongoing production and maintenance applications. The IRG4PC50U serves as a high-voltage switching element in industrial power conversion circuits, requiring functional equivalents that maintain electrical and mechanical compatibility within specified operating parameters.

Substiute Parts

IRG4PC50U

Infineon TechnologiesIn Stock: 1717IRG4PC50U Datasheet

Current PartRFQ

STGW30H65FB

STMicroelectronicsIn Stock: 8190STGW30H65FB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part identification for the IRG4PC50U is based on the following electrical and mechanical criteria:

Voltage Rating Compatibility: The substitute must operate at or above the 600V collector-emitter breakdown voltage. The STGW30H65FB provides 650V, which satisfies this requirement with adequate margin.

Current Rating Consideration: The IRG4PC50U specifies 55A maximum collector current. The STGW30H65FB is rated at 30A maximum collector current, representing a reduction in continuous current capacity. This substitution is valid only in applications where the actual operating current does not exceed 30A.

Pulsed Current Capability: The IRG4PC50U supports 220A pulsed current (Icm), while the STGW30H65FB supports 120A. Applications requiring high pulsed current operation must verify that actual pulse requirements remain within the 120A limit.

Power Dissipation: The IRG4PC50U is rated for 200W maximum power, while the STGW30H65FB is rated for 260W. The substitute provides higher power handling capability.

Package and Mounting: Both devices use TO-247-3 packaging with through-hole mounting, ensuring mechanical and thermal interface compatibility.

Switching Characteristics: The STGW30H65FB exhibits different switching energy and delay times compared to the IRG4PC50U. These differences must be evaluated within the specific circuit application to ensure timing and efficiency requirements are maintained.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The IRG4PC50U is obsolete, while the STGW30H65FB is active. The active status of the substitute ensures ongoing availability and manufacturing support.

Compliance Status: The STGW30H65FB is ROHS3 compliant, whereas the IRG4PC50U is non-compliant. Applications subject to RoHS regulations require the substitute part.

Current Rating Limitation: The STGW30H65FB is suitable only for applications where continuous collector current does not exceed 30A. Applications requiring the full 55A continuous current capability of the IRG4PC50U cannot use this substitute.

Thermal Operating Range: The STGW30H65FB supports operation to 175°C junction temperature, compared to 150°C for the IRG4PC50U. This provides extended thermal margin in high-temperature environments.

Switching Energy Profile: The STGW30H65FB exhibits lower turn-off switching energy (293µJ versus 540µJ), which reduces switching losses. Turn-on energy is slightly higher (151µJ versus 120µJ). Circuit designs sensitive to switching frequency or thermal management must account for these differences.

Frequently Asked Questions (FAQ)

Q: Can the STGW30H65FB directly replace the IRG4PC50U in all applications?

A: No. The STGW30H65FB has a maximum continuous collector current of 30A, compared to 55A for the IRG4PC50U. Direct substitution is valid only in circuits where actual operating current remains below 30A. Applications requiring higher continuous current must identify alternative substitutes or redesign the circuit topology.

Q: Are the TO-247-3 packages mechanically identical?

A: Yes. Both the IRG4PC50U and STGW30H65FB use TO-247-3 packaging with through-hole mounting. PCB footprints and thermal interface requirements are compatible.

Q: What is the significance of the Trench Field Stop technology in the STGW30H65FB?

A: Trench Field Stop is a manufacturing technology that affects switching characteristics and efficiency. The STGW30H65FB exhibits lower turn-off switching energy and reduced gate charge compared to the standard IGBT design of the IRG4PC50U. These differences impact circuit efficiency and switching frequency capability.

Q: Does the higher voltage rating (650V vs 600V) of the STGW30H65FB create compatibility issues?

A: No. A higher voltage rating provides additional safety margin and does not create compatibility issues. The substitute operates safely in circuits designed for 600V operation.

Q: What is the impact of different switching delay times (Td)?

A: The STGW30H65FB has slightly longer turn-on delay (37ns versus 32ns) and shorter turn-off delay (146ns versus 170ns). In circuits with tight timing requirements or high switching frequencies, these differences must be evaluated to ensure proper gate drive timing and circuit stability.

Q: Is the STGW30H65FB suitable for applications requiring 220A pulsed current?

A: No. The STGW30H65FB is rated for 120A pulsed current (Icm), which is below the 220A requirement of the IRG4PC50U. Applications requiring 220A pulsed current capability cannot use this substitute.

Q: What compliance advantages does the STGW30H65FB provide?

A: The STGW30H65FB is ROHS3 compliant, whereas the IRG4PC50U is non-compliant. For applications subject to RoHS regulations or customer requirements, the substitute meets current environmental compliance standards.