IRFBC30AL N-Channel MOSFET 600V 3.6A Equivalent & Substitute Parts

Part Overview

The IRFBC30AL is an N-Channel MOSFET manufactured by Vishay Siliconix, rated for 600V drain-to-source voltage with 3.6A continuous drain current at 25°C. The device is packaged in a Through Hole I2PAK (TO-262-3) configuration and is rated for 74W maximum power dissipation. The IRFBC30AL is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

IRFBC30AL

Vishay SiliconixIn Stock: 2317IRFBC30AL Datasheet

Current PartRFQ

IRFBC30ALPBF

Vishay SiliconixIn Stock: 2174IRFBC30ALPBF Datasheet

DirectRFQ

STI4N62K3

STMicroelectronicsIn Stock: 2307STI4N62K3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IRFBC30AL are identified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• FET Type: N-Channel
• Drain to Source Voltage (Vdss): Equal to or greater than 600V
• Continuous Drain Current (Id) @ 25°C: Equal to or greater than 3.6A
• Rds On (Max): Equal to or less than 2.2 Ohm (at specified conditions)
• Power Dissipation (Max): Equal to or greater than 74W
• Mounting Type: Through Hole
• Package / Case: TO-262-3 Long Leads, I2PAK, or TO-262AA

Substitution Groups:

Group 1: Direct Manufacturer Equivalent The IRFBC30ALPBF is the direct equivalent from Vishay Siliconix, maintaining identical electrical specifications and packaging. This part differs only in product status (Active vs. Obsolete) and RoHS compliance level.

Group 2: Cross-Manufacturer Substitute The STI4N62K3 from STMicroelectronics meets or exceeds all critical electrical parameters while maintaining identical mechanical compatibility. This part operates within the same voltage and current ranges with comparable on-resistance and power dissipation characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred for Existing Designs): The IRFBC30ALPBF is the recommended substitute for the obsolete IRFBC30AL. This part maintains identical electrical specifications and mechanical compatibility while offering Active product status and ROHS3 compliance. Selection of IRFBC30ALPBF eliminates obsolescence risk without requiring circuit redesign or re-qualification.

For New Designs or Performance Optimization: The STI4N62K3 from STMicroelectronics is suitable for applications where the IRFBC30AL specifications are met or exceeded. This part provides a higher voltage rating (620V vs. 600V), improved on-resistance (2.0 Ohm vs. 2.2 Ohm), and slightly lower gate charge (22 nC vs. 23 nC). The STI4N62K3 is manufactured using SuperMESH3™ technology and carries Active product status with ROHS3 compliance. Selection of this part is appropriate when design margins or performance improvements are beneficial.

Compliance Considerations: Both substitute parts are ROHS3 compliant, whereas the original IRFBC30AL is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulations. Both substitute parts carry identical Moisture Sensitivity Level (MSL 1) and REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the IRFBC30ALPBF be used as a direct drop-in replacement for the IRFBC30AL? A: Yes. The IRFBC30ALPBF maintains identical electrical specifications (600V, 3.6A, 2.2 Ohm Rds On, 74W power dissipation) and mechanical packaging (TO-262-3 Long Leads, I2PAK). No circuit modifications are required.

Q: What are the key differences between the IRFBC30ALPBF and STI4N62K3? A: Both parts are electrically compatible substitutes. The STI4N62K3 offers a higher voltage rating (620V vs. 600V), lower on-resistance (2.0 Ohm vs. 2.2 Ohm), and slightly lower gate charge (22 nC vs. 23 nC). Both maintain identical mechanical compatibility and operating temperature range. The STI4N62K3 uses SuperMESH3™ technology.

Q: Are all three parts compatible with the same PCB layout and footprint? A: Yes. All three parts use the TO-262-3 Long Leads, I2PAK, TO-262AA package configuration and are mounted as Through Hole devices. PCB layout and footprint modifications are not required when substituting between these parts.

Q: Does the STI4N62K3 require circuit re-qualification? A: The STI4N62K3 meets or exceeds all critical electrical parameters of the IRFBC30AL. Circuit re-qualification is determined by application-specific requirements and design margins. The improved electrical characteristics (lower Rds On, lower gate charge) generally support direct substitution without circuit modification.

Q: What is the significance of the RoHS compliance difference? A: The IRFBC30AL is RoHS non-compliant, while both IRFBC30ALPBF and STI4N62K3 are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the compliant substitutes are necessary. For legacy systems without RoHS requirements, this distinction is not relevant.

Q: Are there inventory or lead time considerations for these substitutes? A: Current inventory levels are: IRFBC30AL (2300 pcs), IRFBC30ALPBF (2100 pcs), and STI4N62K3 (2267 pcs). All parts are listed as New Original In Stock. Specific lead time and availability should be confirmed with the component supplier.

Q: Can the STI4N62K3 be used in applications originally designed for the IRFBC30AL without performance concerns? A: Yes. The STI4N62K3 meets or exceeds all electrical specifications. The higher voltage rating (620V) and improved on-resistance (2.0 Ohm) provide additional design margin. Applications operating within the original IRFBC30AL specifications will function correctly with the STI4N62K3.