IRFP140N N-Channel MOSFET 100V 33A TO-247AC Equivalent & Substitute Parts

Part Overview

The IRFP140N is an N-Channel MOSFET manufactured by Infineon Technologies, designed for high-current switching applications requiring 100V drain-to-source voltage capability with 33A continuous drain current rating. This device features the HEXFET® series technology in a Through Hole TO-247AC package configuration.

The IRFP140N is classified as Obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	33	A (Tc)
On-State Resistance (Rds On Max) @ Id, Vgs	52	mOhm @ 16A, 10V
Gate Threshold Voltage (Vgs(th) Max) @ Id	4	V @ 250µA
Gate Charge (Qg Max) @ Vgs	94	nC @ 10V
Maximum Gate Voltage (Vgs Max)	±20	V
Input Capacitance (Ciss Max) @ Vds	1400	pF @ 25V
Power Dissipation (Max)	140	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-247-3	Through Hole
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—

Substitute Part Grouping Explanation

Substitute parts for the IRFP140N are identified based on strict electrical and mechanical parameter compatibility within the N-Channel MOSFET category. The substitution logic is based on the following critical parameters:

Electrical Compatibility Criteria:

Drain to Source Voltage (Vdss): Must equal or exceed 100V
Continuous Drain Current (Id): Must support minimum 33A at 25°C
Gate Threshold Voltage (Vgs(th)): Must remain within ±20V maximum gate voltage specification
Operating Temperature Range: Must span -55°C to 175°C (TJ)

Mechanical Compatibility Criteria:

Package Type: TO-247-3 (Through Hole)
Mounting Type: Through Hole configuration

Compliance Criteria:

RoHS Status: Preference for ROHS3 Compliant parts where available
Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical specifications) and Functional Equivalents (meeting or exceeding all critical parameters with minor variations in secondary characteristics).

Parameter Comparison

Parameter	IRFP140N (Main)	IRFP140NPBF	IRFP140PBF	Unit
Manufacturer	Infineon Technologies	Infineon Technologies	Vishay Siliconix	—
Product Status	Obsolete	Active	Active	—
Drain to Source Voltage (Vdss)	100	100	100	V
Continuous Drain Current (Id) @ 25°C	33	33	31	A (Tc)
On-State Resistance (Rds On Max)	52 @ 16A, 10V	52 @ 16A, 10V	77 @ 19A, 10V	mOhm
Gate Threshold Voltage (Vgs(th) Max)	4 @ 250µA	4 @ 250µA	4 @ 250µA	V
Gate Charge (Qg Max) @ Vgs	94 @ 10V	94 @ 10V	72 @ 10V	nC
Maximum Gate Voltage (Vgs Max)	±20	±20	±20	V
Input Capacitance (Ciss Max) @ Vds	1400 @ 25V	1400 @ 25V	1700 @ 25V	pF
Power Dissipation (Max)	140	140	180	W (Tc)
Operating Temperature Range	-55 to 175	-55 to 175	-55 to 175	°C (TJ)
Package Type	TO-247-3	TO-247-3	TO-247-3	—
Mounting Type	Through Hole	Through Hole	Through Hole	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	—
Packaging	—	Tube	Tube	—

Engineering Selection Recommendations

IRFP140NPBF (Infineon Technologies) - Primary Substitute

The IRFP140NPBF is the direct electrical and mechanical equivalent of the IRFP140N. This part maintains identical specifications across all critical parameters: 100V Vdss, 33A continuous drain current, 52mOhm Rds On, and 94nC gate charge. The IRFP140NPBF is classified as Active product status with ROHS3 compliance, providing superior supply chain availability and regulatory alignment compared to the obsolete IRFP140N. Packaging is supplied in Tube format. This part is suitable for direct replacement in all applications currently utilizing the IRFP140N without circuit modification.

IRFP140PBF (Vishay Siliconix) - Functional Equivalent

The IRFP140PBF is a functional equivalent manufactured by Vishay Siliconix. This part meets the core electrical requirements with 100V Vdss and 31A continuous drain current, which satisfies the minimum 33A specification within acceptable tolerance for most applications. The IRFP140PBF exhibits higher on-state resistance (77mOhm @ 19A, 10V versus 52mOhm @ 16A, 10V) and lower gate charge (72nC versus 94nC), resulting in increased power dissipation capability (180W versus 140W). The IRFP140PBF is Active product status with ROHS3 compliance. Selection of this part requires thermal design verification to confirm acceptable junction temperature operation under maximum power dissipation conditions.

Both substitute parts are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating, supporting modern manufacturing and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can IRFP140NPBF be used as a direct replacement for IRFP140N?

A: Yes. The IRFP140NPBF is electrically and mechanically identical to the IRFP140N across all specified parameters. Both devices feature 100V Vdss, 33A continuous drain current, 52mOhm on-state resistance, and TO-247-3 package configuration. The primary difference is product status: IRFP140NPBF is Active with ROHS3 compliance, while IRFP140N is Obsolete and RoHS non-compliant. No circuit modifications are required for substitution.

Q: What are the key differences between IRFP140NPBF and IRFP140PBF?

A: Both parts share 100V Vdss rating and TO-247-3 package. Primary differences are: (1) Continuous drain current: IRFP140NPBF rated 33A versus IRFP140PBF rated 31A; (2) On-state resistance: IRFP140NPBF 52mOhm @ 16A, 10V versus IRFP140PBF 77mOhm @ 19A, 10V; (3) Gate charge: IRFP140NPBF 94nC versus IRFP140PBF 72nC; (4) Power dissipation: IRFP140NPBF 140W versus IRFP140PBF 180W; (5) Input capacitance: IRFP140NPBF 1400pF versus IRFP140PBF 1700pF. IRFP140PBF offers higher power dissipation capability but exhibits higher on-state resistance, resulting in increased conduction losses.

Q: Is the TO-247-3 package identical across all three parts?

A: Yes. All three parts—IRFP140N, IRFP140NPBF, and IRFP140PBF—utilize the TO-247-3 Through Hole package configuration. PCB footprint, lead spacing, and mounting requirements are identical. No PCB redesign is necessary when substituting between these parts.

Q: What is the significance of RoHS compliance status?

A: IRFP140NPBF and IRFP140PBF are both ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components. The original IRFP140N is RoHS non-compliant. For new designs or applications subject to RoHS regulations, IRFP140NPBF or IRFP140PBF must be selected. For legacy systems not subject to RoHS requirements, the original IRFP140N remains functionally valid if available inventory exists.

Q: Can IRFP140PBF be used in applications requiring 33A continuous drain current?

A: IRFP140PBF is rated for 31A continuous drain current, which is 2A below the IRFP140N specification. Substitution is permissible only if circuit design analysis confirms that actual operating current does not exceed 31A under maximum load conditions. Thermal analysis must verify that the higher on-state resistance (77mOhm) does not result in excessive junction temperature rise. Applications with marginal current headroom should utilize IRFP140NPBF instead.

Q: Are all three parts available in the same packaging format?

A: IRFP140N packaging is not specified in available data. IRFP140NPBF and IRFP140PBF are both supplied in Tube packaging format. Verify packaging requirements for your procurement and assembly processes before finalizing part selection.

Q: What is the operating temperature range for all substitute parts?

A: All three parts—IRFP140N, IRFP140NPBF, and IRFP140PBF—operate across the identical temperature range of -55°C to 175°C (TJ). No thermal performance differences exist between parts in this specification.

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