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IRL3103SPBF N-Channel 30V 64A MOSFET Equivalent & Substitute Parts
Part Overview
The IRL3103SPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 30V drain-to-source voltage and 64A continuous drain current in a D2PAK surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The HEXFET series component operates across a temperature range of -55°C to 175°C and dissipates up to 94W at the case temperature.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Drain-to-Source Voltage (Vdss) | 30 | V |
| Continuous Drain Current (Id) @ 25°C | 64 | A (Tc) |
| On-State Resistance (Rds On Max) @ Id, Vgs | 12 mOhm @ 34A, 10V | mOhm |
| Gate Threshold Voltage (Vgs(th) Max) @ Id | 1 | V @ 250µA |
| Gate Charge (Qg Max) @ Vgs | 33 | nC @ 4.5V |
| Power Dissipation (Max) | 94 | W (Tc) |
| Operating Temperature Range | -55 to 175 | °C (TJ) |
| Package Type | D2PAK (TO-263-3) | Surface Mount |
| Moisture Sensitivity Level | 1 (Unlimited) | MSL |
Substitute Part Grouping Explanation
Substitution of the IRL3103SPBF is determined by strict alignment of the following electrical and mechanical parameters:
Critical Matching Parameters:
- Drain-to-Source Voltage (Vdss): Must equal 30V
- Package Type: Must be D2PAK (TO-263-3) surface mount
- FET Type: Must be N-Channel MOSFET
- Operating Temperature Range: Must support -55°C to 175°C
- Mounting Type: Must be surface mount
Performance Consideration Parameters:
- Continuous Drain Current (Id): Substitute must meet or exceed 64A
- On-State Resistance (Rds On): Lower values indicate improved performance
- Power Dissipation: Must support thermal requirements of the application
- Gate Charge (Qg): Affects switching speed and drive circuit requirements
The substitute parts listed below maintain identical voltage ratings and package specifications while offering variations in current handling capacity and thermal characteristics. Selection depends on whether the application requires current capability matching or exceeding the original 64A specification.
Parameter Comparison
| Parameter | IRL3103SPBF (Infineon) | PSMN017-30BL,118 (Nexperia) | PSMN4R3-30BL,118 (Nexperia) |
|---|---|---|---|
| Manufacturer | Infineon Technologies | Nexperia USA Inc. | Nexperia USA Inc. |
| Drain-to-Source Voltage (Vdss) | 30 V | 30 V | 30 V |
| Continuous Drain Current (Id) @ 25°C | 64 A (Tc) | 32 A (Tc) | 100 A (Tc) |
| Rds On (Max) @ Id, Vgs | 12 mOhm @ 34A, 10V | 17 mOhm @ 10A, 10V | 4.1 mOhm @ 15A, 10V |
| Gate Threshold Voltage (Vgs(th) Max) @ Id | 1 V @ 250µA | 2.15 V @ 1mA | 2.15 V @ 1mA |
| Gate Charge (Qg Max) @ Vgs | 33 nC @ 4.5V | 10.7 nC @ 10V | 41.5 nC @ 10V |
| Maximum Gate Voltage (Vgs Max) | ±16 V | ±20 V | ±20 V |
| Input Capacitance (Ciss Max) @ Vds | 1650 pF @ 25V | 552 pF @ 15V | 2400 pF @ 15V |
| Power Dissipation (Max) | 94 W (Tc) | 47 W (Tc) | 103 W (Tc) |
| Operating Temperature Range | -55 to 175 °C (TJ) | -55 to 175 °C (TJ) | -55 to 175 °C (TJ) |
| Package Type | D2PAK (TO-263-3) | D2PAK (TO-263-3) | D2PAK (TO-263-3) |
| Product Status | Obsolete | Obsolete | Active |
| RoHS Status | Not specified | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
PSMN4R3-30BL,118 (Nexperia USA Inc.) is the primary substitute for the IRL3103SPBF. This part maintains identical voltage specifications (30V Vdss) and D2PAK packaging while providing superior current handling at 100A continuous drain current, exceeding the original 64A rating. The PSMN4R3-30BL,118 carries Active product status, ensuring long-term availability and supply chain stability. This device is ROHS3 compliant and shares the same operating temperature range (-55°C to 175°C). The lower on-state resistance (4.1 mOhm @ 15A, 10V) compared to the original part (12 mOhm @ 34A, 10V) provides improved thermal performance and reduced power dissipation in high-current applications.
PSMN017-30BL,118 (Nexperia USA Inc.) serves as an alternative for applications with reduced current requirements. This part maintains the 30V voltage rating and D2PAK package but is rated for 32A continuous drain current, which is below the original 64A specification. The PSMN017-30BL,118 is classified as Obsolete and is ROHS3 compliant. This substitute is suitable only for designs where the 64A current capability is not fully utilized and where the lower power dissipation (47W vs. 94W) is acceptable.
Both substitute parts are manufactured by Nexperia USA Inc., a recognized supplier in the MOSFET market, and maintain compatibility with the original D2PAK footprint and thermal characteristics. Selection between these options depends on whether the application requires current capacity matching or exceeding the original 64A specification.
Frequently Asked Questions (FAQ)
Q: Can the PSMN017-30BL,118 be used as a direct replacement for the IRL3103SPBF?
A: The PSMN017-30BL,118 shares the same 30V voltage rating and D2PAK package, but its 32A continuous drain current rating is below the original 64A specification. This substitute is suitable only for applications where the full 64A current capability is not required. Verify that your circuit operates within the 32A limit before substitution.
Q: What are the advantages of using the PSMN4R3-30BL,118 over the original IRL3103SPBF?
A: The PSMN4R3-30BL,118 provides 100A continuous drain current, exceeding the original 64A rating, and features a lower on-state resistance (4.1 mOhm vs. 12 mOhm), resulting in reduced power dissipation and improved thermal efficiency. The part carries Active product status, ensuring long-term availability. Both devices maintain identical 30V voltage specifications and D2PAK packaging.
Q: Are the substitute parts pin-compatible with the IRL3103SPBF?
A: Yes. Both PSMN017-30BL,118 and PSMN4R3-30BL,118 use the D2PAK (TO-263-3) package with identical pin configuration: Gate, Drain, and Source connections match the original IRL3103SPBF layout. No PCB modifications are required for package compatibility.
Q: What is the difference in gate charge between these parts?
A: The IRL3103SPBF has a gate charge of 33 nC @ 4.5V. The PSMN017-30BL,118 has 10.7 nC @ 10V, while the PSMN4R3-30BL,118 has 41.5 nC @ 10V. Lower gate charge reduces drive circuit power requirements and enables faster switching. The PSMN017-30BL,118 offers the lowest gate charge, while the PSMN4R3-30BL,118 requires slightly higher drive current due to higher gate charge.
Q: Do the substitute parts meet RoHS compliance requirements?
A: Both PSMN017-30BL,118 and PSMN4R3-30BL,118 are ROHS3 compliant. The original IRL3103SPBF does not specify RoHS status. If RoHS compliance is required for your application, both Nexperia substitutes satisfy this requirement.
Q: What is the operating temperature range for the substitute parts?
A: Both substitute parts operate across the same temperature range as the original: -55°C to 175°C (TJ). Thermal management considerations remain consistent across all three devices.
Q: Which substitute should I choose for a new design?
A: For new designs, the PSMN4R3-30BL,118 is recommended. It provides superior current handling (100A), lower on-state resistance, Active product status for long-term availability, and ROHS3 compliance. The higher gate charge (41.5 nC) is a minor consideration in most applications and is offset by improved thermal performance and supply chain stability.
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