IRLI2910 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRLI2910 is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage with 31A continuous drain current at 25°C (Tc). This device is packaged in a TO-220AB Full-Pak through-hole configuration and belongs to the HEXFET® series. The IRLI2910 is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and procurement continuity. Obsolete status indicates the part is no longer in active production, requiring engineers to identify alternative devices that maintain electrical and mechanical compatibility within target applications.

Substiute Parts

IRLI2910

Infineon TechnologiesIn Stock: 2669IRLI2910 Datasheet

Current PartRFQ

AOTF2916L

Alpha & Omega Semiconductor Inc.In Stock: 2485AOTF2916L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRLI2910 is determined by electrical parameter compatibility within the following criteria:

Primary Electrical Compatibility Parameters:

• Drain-to-Source Voltage (Vdss): Must equal or exceed 100V
• Continuous Drain Current (Id) @ 25°C: Must meet or exceed 31A (Tc) rating
• On-State Resistance (Rds On): Must not exceed specified maximum values at rated current and gate voltage
• Gate Threshold Voltage (Vgs(th)): Must fall within acceptable operating range
• Operating Temperature Range: Must encompass -55°C to 175°C (TJ)

Mechanical Compatibility Parameters:

• Package Type: TO-220-3 Full Pack through-hole configuration
• Mounting Type: Through-hole

The AOTF2916L from Alpha & Omega Semiconductor Inc. is identified as a substitute part. This device shares the same 100V Vdss rating and TO-220-3 Full Pack package configuration. However, the AOTF2916L exhibits reduced continuous drain current (17A Tc versus 31A Tc) and different on-state resistance characteristics, indicating this substitute is suitable for applications where the full 31A current rating of the IRLI2910 is not required.

Parameter Comparison

Engineering Selection Recommendations

IRLI2910 (Infineon Technologies)

The IRLI2910 is classified as obsolete and carries RoHS non-compliant status. This device is suitable for legacy system maintenance and repair applications where original component specifications must be preserved. The 31A continuous drain current and 63W power dissipation rating support high-current switching applications. Procurement of this part is limited to existing inventory; long-term availability cannot be assured.

AOTF2916L (Alpha & Omega Semiconductor Inc.)

The AOTF2916L is an active product with ROHS3 compliance, making it suitable for new designs and applications subject to environmental regulations. This substitute shares the 100V Vdss rating and TO-220-3 Full Pack package configuration with the IRLI2910. The AOTF2916L is rated for 17A continuous drain current (Tc) and 23.5W power dissipation (Tc), representing a reduced current capability compared to the IRLI2910. Selection of the AOTF2916L is appropriate for applications where the 31A rating of the IRLI2910 exceeds design requirements. The lower gate charge (20 nC versus 140 nC) and reduced input capacitance (870 pF versus 3700 pF) of the AOTF2916L may result in faster switching characteristics and reduced gate drive power requirements.

Frequently Asked Questions (FAQ)

Q: Can the AOTF2916L directly replace the IRLI2910 in all applications?

A: The AOTF2916L shares the same 100V Vdss rating and TO-220-3 Full Pack package, enabling mechanical and electrical compatibility in terms of voltage rating. However, the AOTF2916L is rated for 17A continuous drain current (Tc) compared to the IRLI2910's 31A rating. Direct substitution is limited to applications where the design current requirement does not exceed 17A (Tc). Applications requiring the full 31A capability of the IRLI2910 cannot use the AOTF2916L as a substitute.

Q: What are the key electrical differences between these devices?

A: The primary differences are continuous drain current (31A versus 17A at Tc), power dissipation (63W versus 23.5W at Tc), on-state resistance (26 mOhm versus 34 mOhm), gate charge (140 nC versus 20 nC), and input capacitance (3700 pF versus 870 pF). The AOTF2916L exhibits lower gate charge and input capacitance, which may reduce gate drive circuit complexity and power consumption. The IRLI2910 provides higher current and power handling capability.

Q: Are both devices compatible with the same PCB layout and thermal management approach?

A: Both devices use the TO-220-3 Full Pack through-hole package, enabling use of identical PCB footprints and mounting hardware. However, thermal management requirements differ due to the 63W (IRLI2910) versus 23.5W (AOTF2916L) power dissipation ratings. The IRLI2910 may require enhanced heatsinking or thermal design compared to the AOTF2916L in equivalent operating conditions.

Q: What is the impact of the IRLI2910's obsolete status?

A: Obsolete status indicates the IRLI2910 is no longer manufactured by Infineon Technologies. Existing inventory may be available through authorized distributors, but long-term procurement cannot be assured. For new designs or long-term production requirements, selection of an active substitute such as the AOTF2916L is recommended to ensure supply chain continuity.

Q: Does the AOTF2916L's ROHS3 compliance affect electrical performance?

A: ROHS3 compliance reflects manufacturing process and material composition standards and does not alter the electrical performance specifications of the AOTF2916L. Compliance status is relevant for applications subject to environmental regulations or customer requirements but does not impact switching characteristics, voltage rating, or current handling capability.

Q: How do gate charge differences affect circuit design?

A: The AOTF2916L exhibits significantly lower gate charge (20 nC at 10V versus 140 nC at 5V for the IRLI2910). Lower gate charge reduces the energy required to switch the device and may allow use of lower-power gate drive circuits. Applications with high switching frequency or limited gate drive power budgets may benefit from the AOTF2916L's reduced gate charge characteristic.