IRFU024 N-Channel MOSFET 60V 14A TO-251AA Equivalent & Substitute Parts

Part Overview

The IRFU024 is an N-Channel MOSFET manufactured by Vishay Siliconix, rated for 60V drain-to-source voltage and 14A continuous drain current in a Through Hole TO-251AA package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement. The IRFU024 operates across a temperature range of -55°C to 150°C and dissipates up to 42W at the case temperature (Tc).

Substiute Parts

IRFU024

Vishay SiliconixIn Stock: 1311IRFU024 Datasheet

Current PartRFQ

IRFU024PBF

Vishay SiliconixIn Stock: 17523IRFU024PBF Datasheet

Parametric EquivalentRFQ

STD12NF06L-1

STMicroelectronicsIn Stock: 17247STD12NF06L-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRFU024 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): 60V minimum
• Continuous Drain Current (Id): 14A minimum at 25°C
• On-State Resistance (Rds On): 100 mOhm maximum at specified gate voltage
• Package Type: TO-251AA Through Hole configuration
• FET Type: N-Channel
• Technology: MOSFET (Metal Oxide)

Secondary Compatibility Parameters:

• Gate Threshold Voltage (Vgs(th)): Operating range compatibility
• Gate Charge (Qg): Drive circuit compatibility
• Input Capacitance (Ciss): Switching performance
• Operating Temperature Range: Thermal envelope requirements
• Power Dissipation: Thermal management capability

Substitute parts must maintain electrical equivalence across all primary criteria and demonstrate compatibility within secondary parameters to ensure direct functional replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

IRFU024PBF (Parametric Equivalent)

The IRFU024PBF is a direct parametric equivalent manufactured by Vishay Siliconix. This part maintains identical electrical specifications to the IRFU024 across all critical parameters: 60V Vdss, 14A continuous drain current, 100 mOhm Rds On, and 42W power dissipation. The IRFU024PBF is classified as Active product status, ensuring ongoing availability and supply chain continuity. The device is ROHS3 compliant, addressing regulatory requirements for new designs. Packaging is supplied in Tube format with 17,460 pieces in current inventory. This substitute is the preferred choice for direct replacement applications requiring identical electrical performance and mechanical compatibility.

STD12NF06L-1 (Manufacturer Recommended Substitute)

The STD12NF06L-1 is an N-Channel MOSFET manufactured by STMicroelectronics, rated for 60V Vdss with 12A continuous drain current. This device operates within the same voltage class and maintains 100 mOhm Rds On specification at 10V gate voltage. The STD12NF06L-1 is classified as Active product status with 17,195 pieces in inventory. Key differences include reduced continuous drain current (12A versus 14A), lower gate charge (10 nC @ 5V versus 25 nC @ 10V), and reduced input capacitance (350 pF versus 640 pF). The extended operating temperature range (-55°C to 175°C) provides additional thermal margin. This substitute is suitable for applications where the 12A current rating is sufficient and where reduced gate charge and input capacitance provide switching performance benefits. ROHS3 compliance and REACH Unaffected status are confirmed.

Product Status Consideration

The IRFU024 is classified as Obsolete. The IRFU024PBF and STD12NF06L-1 are both Active products, ensuring long-term availability and manufacturing support. Selection between these substitutes should prioritize the IRFU024PBF for applications requiring exact electrical equivalence, or the STD12NF06L-1 for applications where the reduced current rating and improved switching characteristics are compatible with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the IRFU024PBF be used as a direct replacement for the IRFU024?

A: Yes. The IRFU024PBF is a parametric equivalent with identical electrical specifications: 60V Vdss, 14A continuous drain current, 100 mOhm Rds On, 25 nC gate charge, and 42W power dissipation. Both devices use the TO-251AA package. The primary difference is product status (Active versus Obsolete) and RoHS compliance (ROHS3 Compliant versus Non-compliant). No circuit modifications are required.

Q: What are the key differences between the IRFU024 and STD12NF06L-1?

A: The STD12NF06L-1 has a reduced continuous drain current rating of 12A compared to 14A for the IRFU024. Gate charge is significantly lower at 10 nC versus 25 nC, and input capacitance is reduced from 640 pF to 350 pF. The STD12NF06L-1 operates to 175°C versus 150°C for the IRFU024. On-state resistance remains equivalent at 100 mOhm. These differences result in faster switching performance and lower gate drive requirements for the STD12NF06L-1.

Q: Is the STD12NF06L-1 suitable for applications requiring 14A continuous drain current?

A: No. The STD12NF06L-1 is rated for 12A continuous drain current at 25°C. Applications requiring 14A continuous operation must use the IRFU024 or IRFU024PBF. The STD12NF06L-1 is suitable only for applications where the maximum required drain current does not exceed 12A.

Q: Are all three parts available in the same package?

A: The IRFU024 and IRFU024PBF are both supplied in TO-251AA package. The STD12NF06L-1 is supplied in I-PAK package, which is mechanically and electrically compatible with TO-251-3 Short Leads configuration. All three devices are Through Hole mounting types and are physically compatible with standard TO-251AA footprints.

Q: What is the impact of the lower gate charge in the STD12NF06L-1?

A: Lower gate charge (10 nC @ 5V versus 25 nC @ 10V) reduces the charge that must be supplied by the gate drive circuit to switch the device. This results in faster switching times, reduced gate drive power dissipation, and lower electromagnetic interference. Gate drive circuits designed for the IRFU024 will operate the STD12NF06L-1 with improved performance characteristics.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The IRFU024 is RoHS non-compliant. Both the IRFU024PBF and STD12NF06L-1 are ROHS3 compliant. For new designs or applications subject to RoHS regulations, the IRFU024PBF or STD12NF06L-1 must be selected.

Q: Can the IRFU024 be used in new designs?

A: The IRFU024 is classified as Obsolete product status. For new designs, the IRFU024PBF (parametric equivalent) or STD12NF06L-1 (manufacturer recommended substitute) should be selected to ensure long-term supply chain continuity and regulatory compliance.

Q: What is the operating temperature range difference?

A: The IRFU024 and IRFU024PBF operate from -55°C to 150°C (TJ). The STD12NF06L-1 operates from -55°C to 175°C (TJ). The extended upper temperature limit of the STD12NF06L-1 provides additional thermal margin in high-temperature applications.