IRGI4090PBF IGBT Equivalent & Substitute Parts

Part Overview

The IRGI4090PBF is a Trench IGBT manufactured by Infineon Technologies, rated for 300V collector-emitter breakdown voltage and 21A maximum collector current with 34W power dissipation capability. This component is classified as Obsolete product status, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement continuity.

The obsolete classification requires engineers to evaluate substitute components that maintain electrical and mechanical compatibility within the specified parameter ranges for Through Hole TO-220AB applications.

Substiute Parts

IRGI4090PBF

Infineon TechnologiesIn Stock: 3369IRGI4090PBF Datasheet

Current PartRFQ

AUIR2085STR

Infineon TechnologiesIn Stock: 13303AUIR2085STR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution analysis for the IRGI4090PBF is constrained by the fundamental category mismatch between the main part and the provided substitute candidate. The IRGI4090PBF is classified as a Transistor IGBT (Insulated Gate Bipolar Transistor), a discrete power semiconductor device designed for high-voltage switching applications.

The listed substitute, AUIR2085STR, is classified as a Power Management IC (Integrated Circuit) functioning as a Half-Bridge Gate Driver. This component serves a fundamentally different functional role: it drives and controls IGBT or MOSFET gates rather than performing the switching function itself.

Critical Parameter Incompatibilities:

• Device Category: IGBT (discrete switching device) versus Gate Driver IC (control circuit)
• Voltage Rating: IRGI4090PBF operates at 300V collector-emitter; AUIR2085STR operates at 10V–15V supply voltage with 100V maximum bootstrap voltage
• Current Handling: IRGI4090PBF handles 21A collector current; AUIR2085STR provides 1A peak output current for gate driving
• Mounting Type: IRGI4090PBF uses Through Hole TO-220AB; AUIR2085STR uses Surface Mount 8-SOIC
• Package / Case: TO-220-3 Full Pack versus PG-DSO-8-904

Conclusion: The AUIR2085STR cannot function as a direct substitute for the IRGI4090PBF in any application requiring IGBT switching functionality. No valid substitution relationship exists based on electrical or mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The AUIR2085STR is not suitable as a substitute for the IRGI4090PBF based on device category, electrical specifications, and mechanical packaging requirements.

For applications requiring IGBT switching functionality at 300V, 21A specifications:

Direct IGBT substitutes must satisfy the following criteria:

• Device category: Transistor, IGBT
• Voltage rating: 300V minimum collector-emitter breakdown voltage
• Current rating: 21A minimum collector current
• Mounting type: Through Hole
• Package: TO-220-3 or equivalent mechanical footprint
• Operating temperature: -40°C to 150°C minimum

For applications requiring gate driver functionality:

The AUIR2085STR is appropriate only for Half-Bridge gate driving applications requiring:

• Supply voltage: 10V–15V
• Output current: 1A peak source/sink
• Bootstrap voltage: Up to 100V
• Surface Mount 8-SOIC package compatibility

These are separate application requirements and cannot be addressed by a single component substitution.

Frequently Asked Questions (FAQ)

Q: Can AUIR2085STR replace IRGI4090PBF in my circuit?

A: No. AUIR2085STR is a gate driver IC designed to control IGBT or MOSFET gates. IRGI4090PBF is a discrete IGBT that performs the switching function. These components serve different functional roles and cannot substitute for one another.

Q: Why is IRGI4090PBF listed as obsolete?

A: Product status reflects manufacturer discontinuation. Active alternatives with equivalent IGBT specifications (300V, 21A, TO-220AB package) should be sourced from current Infineon IGBT product lines or alternative manufacturers.

Q: What parameters must match for IGBT substitution?

A: Critical parameters include collector-emitter breakdown voltage (300V minimum), collector current rating (21A minimum), on-state voltage (Vce(on)), gate charge, switching times, and mechanical package compatibility (TO-220-3 Through Hole).

Q: Can I use AUIR2085STR with IRGI4090PBF in the same design?

A: Yes, but as complementary components in different circuit functions. AUIR2085STR would drive the gate of IRGI4090PBF or another IGBT, not replace it.

Q: What mounting considerations apply to substitutes?

A: IRGI4090PBF requires Through Hole mounting on PCB. Any substitute must support identical mounting type and footprint to maintain mechanical and thermal compatibility without PCB redesign.

Q: Are there compliance differences between these parts?

A: Both components share identical REACH Status (REACH Unaffected) and ECCN (EAR99) classifications. AUIR2085STR carries AEC-Q100 Automotive qualification and ROHS3 compliance; IRGI4090PBF specifications do not list these certifications in provided data.