Equivalent & Substitute Parts for IRL2203NSTRR

Part Overview

The IRL2203NSTRR is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage with 116A continuous drain current at Tc. The device is housed in a D2PAK surface mount package and is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts are necessary for ongoing design support and production continuity. Substitute devices must maintain compatibility across voltage ratings, package type, and thermal characteristics while meeting current application requirements.

Substiute Parts

IRL2203NSTRR

Infineon TechnologiesIn Stock: 789IRL2203NSTRR Datasheet

Current PartRFQ

PSMN017-30BL,118

Nexperia USA Inc.In Stock: 2850PSMN017-30BL,118 Datasheet

MFR RecommendedRFQ

PSMN4R3-30BL,118

Nexperia USA Inc.In Stock: 10797PSMN4R3-30BL,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRL2203NSTRR are selected based on the following criteria:

Mandatory Compatibility Parameters:

• Drain-to-Source Voltage (Vdss): 30V (exact match required)
• Package Type: D2PAK surface mount (TO-263-3)
• FET Type: N-Channel MOSFET
• Operating Temperature Range: -55°C to 175°C (TJ)
• Mounting Type: Surface Mount

Performance Parameters (allowable variation):

• Continuous Drain Current (Id): Substitute must support application requirements
• On-Resistance (Rds On): Lower values acceptable; higher values require thermal analysis
• Gate Charge (Qg): Affects switching speed; variation acceptable within application constraints
• Power Dissipation: Must support thermal environment

The two substitute parts listed below maintain identical voltage ratings and package specifications while offering different current ratings and thermal characteristics to accommodate various application scenarios.

Parameter Comparison

Engineering Selection Recommendations

PSMN4R3-30BL,118 (Primary Substitute): This part is recommended as the primary substitute for new designs and production continuity. It maintains the 30V voltage rating and D2PAK package compatibility. With 100A continuous drain current, it closely matches the IRL2203NSTRR performance envelope. The PSMN4R3-30BL,118 is in active product status, ensuring long-term availability. It achieves ROHS3 compliance, meeting current regulatory requirements. The lower on-resistance (4.1 mOhm) provides improved thermal efficiency compared to the original part.

PSMN017-30BL,118 (Secondary Substitute): This part serves as an alternative for applications with lower current requirements (32A continuous drain current). It maintains 30V voltage rating and D2PAK package compatibility. The PSMN017-30BL,118 is classified as obsolete but offers ROHS3 compliance. The significantly lower gate charge (10.7 nC) may benefit applications requiring faster switching characteristics. This substitute is suitable only when application current demands do not exceed 32A.

Both substitutes maintain identical voltage specifications, package type, and operating temperature range as the original IRL2203NSTRR, ensuring mechanical and electrical compatibility within these core parameters.

Frequently Asked Questions (FAQ)

Q: Can PSMN4R3-30BL,118 directly replace IRL2203NSTRR in existing designs?

A: Yes, within the constraints of the specified parameters. Both devices share identical 30V Vdss rating, D2PAK package type, and -55°C to 175°C operating temperature range. The PSMN4R3-30BL,118 provides 100A continuous drain current, which is within the application envelope of the 116A-rated original part. Verify that your circuit design does not depend on the specific gate charge or on-resistance characteristics of the IRL2203NSTRR.

Q: What is the difference between PSMN4R3-30BL,118 and PSMN017-30BL,118?

A: The primary difference is continuous drain current rating. PSMN4R3-30BL,118 is rated for 100A (Tc), while PSMN017-30BL,118 is rated for 32A (Tc). Both maintain 30V Vdss and D2PAK packaging. The PSMN017-30BL,118 has lower gate charge (10.7 nC versus 41.5 nC), which may affect switching speed. Select based on your application's current requirements.

Q: Are there package compatibility concerns when substituting these parts?

A: No. All three parts use identical D2PAK (TO-263-3) surface mount packaging with 2 leads plus tab configuration. PCB footprints and thermal pad layouts are compatible across all three devices.

Q: Does the lower on-resistance of PSMN4R3-30BL,118 affect circuit operation?

A: Lower on-resistance (4.1 mOhm versus 7 mOhm) reduces conduction losses and heat generation. This is generally beneficial for thermal performance. However, if your circuit design includes current-sensing or load-sharing networks that depend on specific on-resistance values, verify compatibility before substitution.

Q: What is the significance of RoHS compliance status?

A: PSMN4R3-30BL,118 and PSMN017-30BL,118 are ROHS3 compliant, meeting current environmental regulations for new designs and production. The original IRL2203NSTRR is RoHS non-compliant, which may restrict its use in regulated applications or new product certifications.

Q: Can I use PSMN017-30BL,118 if my application requires 116A continuous current?

A: No. PSMN017-30BL,118 is rated for only 32A continuous drain current. Using it in a 116A application would exceed its electrical rating and cause device failure. Use PSMN4R3-30BL,118 for high-current applications.

Q: Are there thermal considerations when substituting these parts?

A: Yes. Power dissipation ratings differ: IRL2203NSTRR (180W Tc), PSMN4R3-30BL,118 (103W Tc), and PSMN017-30BL,118 (47W Tc). Verify that your thermal management design (heatsinking, PCB copper area) accommodates the substitute part's power dissipation characteristics. Lower on-resistance in PSMN4R3-30BL,118 may reduce thermal load in high-current applications.