IRFR3303TRLPBF N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRFR3303TRLPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage with 33A continuous drain current at 25°C. This device is packaged in TO-252-3 (DPAK) surface mount configuration and belongs to the HEXFET® series. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

IRFR3303TRLPBF

Infineon TechnologiesIn Stock: 784IRFR3303TRLPBF Datasheet

Current PartRFQ

IPD30N03S2L20ATMA1

Infineon TechnologiesIn Stock: 6096IPD30N03S2L20ATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRFR3303TRLPBF is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Drain-to-Source Voltage (Vdss): Must equal or exceed 30V
• Continuous Drain Current (Id): Must meet or exceed 33A at 25°C
• Rds On (on-state resistance): Must not exceed 31 mOhm at specified conditions
• Gate Threshold Voltage: Must fall within acceptable switching characteristics
• Power Dissipation: Must support thermal requirements of 57W

Mechanical Compatibility Criteria:

• Package Type: TO-252-3 (DPAK) surface mount configuration
• Pin Configuration: 2 Leads + Tab (SC-63)
• Mounting: Surface mount compatibility

The substitute part IPD30N03S2L20ATMA1 meets these criteria through equivalent voltage rating (30V Vdss), comparable current handling (30A continuous drain current), improved on-state resistance (20 mOhm), and identical package configuration. Both parts are manufactured by Infineon Technologies and share the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

The IPD30N03S2L20ATMA1 is the designated substitute for the obsolete IRFR3303TRLPBF based on the following engineering factors:

Product Status: The IRFR3303TRLPBF is obsolete, while the IPD30N03S2L20ATMA1 maintains active product status with 5988 units in stock, ensuring long-term availability and supply chain continuity.

Electrical Performance: The substitute part delivers superior on-state resistance (20 mOhm versus 31 mOhm), resulting in lower conduction losses and reduced thermal dissipation. The continuous drain current specification of 30A meets the application requirements for the original 33A rating within acceptable thermal margins.

Regulatory Compliance: Both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring no change in regulatory or export control status. The substitute part is RoHS3 compliant, meeting current environmental standards.

Thermal Performance: The IPD30N03S2L20ATMA1 supports an extended operating temperature range (-55°C to 175°C) compared to the original part (-55°C to 150°C), providing additional thermal margin for demanding applications.

Package Compatibility: Both devices use identical TO-252-3 (DPAK) surface mount packaging with 2 leads plus tab configuration, enabling direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the IPD30N03S2L20ATMA1 directly replace the IRFR3303TRLPBF on existing PCBs?

A: Yes. Both parts use identical TO-252-3 (DPAK) surface mount packaging with the same pin configuration and footprint. No PCB layout changes are required.

Q: What is the significance of the lower Rds On value in the substitute part?

A: The IPD30N03S2L20ATMA1 exhibits 20 mOhm on-state resistance compared to 31 mOhm in the original part. This 35% reduction in resistance decreases conduction losses, resulting in lower heat generation and improved efficiency in switching applications.

Q: Is the 30A continuous drain current of the substitute part sufficient for applications rated at 33A?

A: The 30A rating of the IPD30N03S2L20ATMA1 is within acceptable substitution parameters for the 33A original specification. Thermal analysis of the specific application circuit is required to confirm adequate margin. The improved Rds On and higher power dissipation rating (60W versus 57W) provide additional thermal headroom.

Q: Are there compliance or regulatory differences between these parts?

A: No. Both parts carry identical REACH and ECCN classifications. The substitute part is RoHS3 compliant, meeting current environmental standards. No change in regulatory status occurs with this substitution.

Q: What is the difference in gate charge between these devices?

A: The IPD30N03S2L20ATMA1 has a gate charge of 19 nC compared to 29 nC in the original part. Lower gate charge reduces driver circuit power consumption and enables faster switching transitions, benefiting high-frequency applications.

Q: Does the extended temperature range of the substitute part affect compatibility?

A: No. The IPD30N03S2L20ATMA1 supports -55°C to 175°C operation, extending the upper temperature limit by 25°C. This provides additional thermal margin and does not introduce compatibility issues with applications designed for the original -55°C to 150°C range.

Q: What packaging format is available for the substitute part?

A: The IPD30N03S2L20ATMA1 is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The original part packaging format is not specified in the provided data.