IRFU9024 Equivalent & Substitute Parts

Part Overview

The IRFU9024 is a P-Channel MOSFET rated for 60V drain-to-source voltage with 8.8A continuous drain current in a Through Hole TO-251AA package. Manufactured by Vishay Siliconix, this device is classified as obsolete product status. Due to its obsolete classification, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain to Source Voltage (Vdss)	60	V
Current - Continuous Drain (Id) @ 25°C	8.8	A (Tc)
Rds On (Max) @ Id, Vgs	280	mOhm @ 5.3A, 10V
Vgs(th) (Max) @ Id	4	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	19	nC @ 10V
Vgs (Max)	±20	V
Input Capacitance (Ciss) (Max) @ Vds	570	pF @ 25V
Power Dissipation (Max)	2.5 (Ta), 42 (Tc)	W
Operating Temperature	-55 to 150	°C (TJ)
Mounting Type	Through Hole	—
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	—

Substitute Part Grouping Explanation

Substitution of the IRFU9024 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

FET Type: P-Channel topology must be maintained
Drain to Source Voltage (Vdss): Minimum 60V required; higher ratings are acceptable
Continuous Drain Current (Id): Minimum 8.8A required; higher ratings are acceptable
Gate Threshold Voltage (Vgs(th)): Must remain within ±20V maximum gate voltage specification
On-State Resistance (Rds On): Lower values improve performance; 280mOhm baseline
Operating Temperature Range: Must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

Mounting Type: Through Hole required
Package / Case: TO-251AA (IPak) form factor required for PCB footprint compatibility

The substitute parts listed below satisfy these criteria while offering improvements in product status, regulatory compliance, or electrical performance characteristics.

Parameter Comparison

Parameter	IRFU9024	IRFU9024PBF	IRFU9024NPBF
Manufacturer	Vishay Siliconix	Vishay Siliconix	Infineon Technologies
Product Status	Obsolete	Active	Active
FET Type	P-Channel	P-Channel	P-Channel
Drain to Source Voltage (Vdss)	60 V	60 V	55 V
Current - Continuous Drain (Id) @ 25°C	8.8 A (Tc)	8.8 A (Tc)	11 A (Tc)
Rds On (Max) @ Id, Vgs	280 mOhm @ 5.3A, 10V	280 mOhm @ 5.3A, 10V	175 mOhm @ 6.6A, 10V
Vgs(th) (Max) @ Id	4 V @ 250µA	4 V @ 250µA	4 V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	19 nC @ 10V	19 nC @ 10V	19 nC @ 10V
Vgs (Max)	±20 V	±20 V	±20 V
Input Capacitance (Ciss) (Max) @ Vds	570 pF @ 25V	570 pF @ 25V	350 pF @ 25V
Power Dissipation (Max)	2.5 W (Ta), 42 W (Tc)	2.5 W (Ta), 42 W (Tc)	38 W (Tc)
Operating Temperature	-55 to 150 °C (TJ)	-55 to 150 °C (TJ)	-55 to 150 °C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Affected	REACH Unaffected

Engineering Selection Recommendations

IRFU9024PBF (Vishay Siliconix)

The IRFU9024PBF is a direct parametric equivalent to the IRFU9024 with identical electrical specifications. This substitute is classified as Active product status, ensuring continued availability and manufacturing support. The IRFU9024PBF achieves ROHS3 compliance and is packaged in Tube format. This part is suitable for applications requiring regulatory compliance with modern environmental standards while maintaining exact electrical performance matching.

IRFU9024NPBF (Infineon Technologies)

The IRFU9024NPBF is manufactured by Infineon Technologies under the HEXFET® series designation. This substitute offers enhanced electrical performance with higher continuous drain current (11A versus 8.8A) and reduced on-state resistance (175mOhm versus 280mOhm), resulting in lower power dissipation and improved thermal efficiency. The drain-to-source voltage is rated at 55V, which is 5V lower than the original specification. The IRFU9024NPBF is classified as Active product status and achieves ROHS3 compliance. Input capacitance is reduced to 350pF, providing faster switching characteristics. This part is suitable for applications where improved performance and thermal management are beneficial, provided the 55V Vdss rating is acceptable for the circuit design.

Frequently Asked Questions (FAQ)

Q: Can the IRFU9024PBF be used as a direct replacement for the IRFU9024?

A: Yes. The IRFU9024PBF is electrically and mechanically identical to the IRFU9024. Both devices share the same drain-to-source voltage (60V), continuous drain current (8.8A), on-state resistance (280mOhm), and TO-251AA package. The primary difference is product status: IRFU9024PBF is Active, whereas IRFU9024 is Obsolete. The IRFU9024PBF also achieves ROHS3 compliance.

Q: What is the key difference between the IRFU9024NPBF and the original IRFU9024?

A: The IRFU9024NPBF differs in three electrical parameters: drain-to-source voltage (55V versus 60V), continuous drain current (11A versus 8.8A), and on-state resistance (175mOhm versus 280mOhm). The lower on-state resistance results in reduced power dissipation and improved thermal performance. The 5V lower Vdss rating must be evaluated against circuit requirements. Both devices maintain identical gate threshold voltage, gate charge, and operating temperature range.

Q: Are the IRFU9024PBF and IRFU9024NPBF pin-compatible?

A: Yes. Both substitute parts use the TO-251AA (IPak) package with identical pin configuration and PCB footprint. Through Hole mounting is maintained across all three devices.

Q: Which substitute part should be selected for new designs?

A: Selection depends on design requirements. For applications requiring exact electrical matching with the original IRFU9024, the IRFU9024PBF is appropriate. For applications where improved performance and lower power dissipation are beneficial, and where the 55V Vdss rating is acceptable, the IRFU9024NPBF offers enhanced thermal characteristics and reduced on-state resistance.

Q: What is the significance of the RoHS and REACH compliance differences?

A: The IRFU9024 is RoHS non-compliant and REACH Unaffected. The IRFU9024PBF is ROHS3 Compliant and REACH Affected. The IRFU9024NPBF is ROHS3 Compliant and REACH Unaffected. RoHS compliance indicates conformance to restrictions on hazardous substances in electrical and electronic equipment. REACH status indicates regulatory classification under the European chemical regulation framework. These certifications are relevant for applications subject to environmental and regulatory requirements in specific markets.

Q: Can the IRFU9024NPBF be used in applications designed for 60V operation?

A: The IRFU9024NPBF is rated for 55V drain-to-source voltage, which is 5V lower than the original IRFU9024 specification. Use in 60V applications requires circuit analysis to confirm that the reduced voltage rating does not compromise system performance or safety margins. The decision to substitute depends on the specific application voltage requirements and design headroom.

Q: What inventory considerations apply to these substitute parts?

A: The IRFU9024 has 1,310 pieces in stock (Obsolete status). The IRFU9024PBF has 688,400 pieces in stock (Active status), providing significantly greater availability. The IRFU9024NPBF has 35,300 pieces in stock (Active status). For long-term production requirements, the IRFU9024PBF offers the highest inventory availability.

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