IRFS4510PBF N-Channel 100V 61A MOSFET Equivalent & Substitute Parts

Part Overview

The IRFS4510PBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage and 61A continuous drain current at 25°C. This device is packaged in a D2PAK (TO-263-3) surface mount configuration with a maximum power dissipation of 140W. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	61	A
On-State Resistance (Rds On) @ 37A, 10V	13.9	mOhm
Gate Threshold Voltage (Vgs(th)) @ 100µA	4	V
Gate Charge (Qg) @ 10V	87	nC
Input Capacitance (Ciss) @ 50V	3180	pF
Power Dissipation (Max)	140	W
Operating Temperature Range	-55 to 175	°C
Package Type	D2PAK (TO-263-3)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the IRFS4510PBF is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Drain-to-Source Voltage (Vdss): Must equal 100V
Package Type: Must be D2PAK (TO-263-3) surface mount
Operating Temperature Range: Must span -55°C to 175°C
RoHS Compliance: Must maintain ROHS3 status
Moisture Sensitivity Level: Must be MSL 1 (Unlimited)

Acceptable Variation Parameters:

Continuous Drain Current (Id): Substitute parts rated at 61A or higher are acceptable
On-State Resistance (Rds On): Substitute parts with equal or lower resistance are acceptable
Power Dissipation: Substitute parts with equal or higher ratings are acceptable
Gate Charge (Qg): Variation permitted within design margin
Input Capacitance (Ciss): Variation permitted within design margin

Substitute parts must maintain identical voltage rating and package configuration while meeting or exceeding current and power handling specifications. Product status (Active, Obsolete, or Discontinued) is noted for supply chain planning but does not disqualify electrical equivalence.

Parameter Comparison

Parameter	IRFS4510PBF	PSMN013-100BS,118	HUF75645S3ST	HUFA75645S3S	NVB6411ANT4G	STB100N10F7	STB80NF10T4
Manufacturer	Infineon	Nexperia	onsemi	Fairchild	onsemi	STMicroelectronics	STMicroelectronics
Vdss (V)	100	100	100	100	100	100	100
Id @ 25°C (A)	61	68	75	75	77	80	80
Rds On (mOhm)	13.9 @ 37A, 10V	13.9 @ 15A, 10V	14 @ 75A, 10V	14 @ 75A, 10V	14 @ 72A, 10V	8 @ 40A, 10V	15 @ 40A, 10V
Vgs(th) (V)	4 @ 100µA	4 @ 1mA	4 @ 250µA	4 @ 250µA	4 @ 250µA	4.5 @ 250µA	4 @ 250µA
Qg (nC)	87 @ 10V	59 @ 10V	238 @ 20V	238 @ 20V	100 @ 10V	61 @ 10V	182 @ 10V
Ciss (pF)	3180 @ 50V	3195 @ 50V	3790 @ 25V	3790 @ 25V	3700 @ 25V	4369 @ 50V	5500 @ 25V
Power Dissipation (W)	140	170	310	310	217	150	300
Operating Temp (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK	D2PAK
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3
Product Status	Discontinued	Active	Obsolete	Active	Obsolete	Active	Active

Engineering Selection Recommendations

Primary Recommendation: PSMN013-100BS,118

The PSMN013-100BS,118 manufactured by Nexperia USA Inc. is the closest electrical equivalent to the IRFS4510PBF. This part maintains identical Vdss (100V) and Rds On (13.9 mOhm) specifications while providing higher continuous drain current (68A versus 61A) and increased power dissipation (170W versus 140W). The part is currently Active in product status, ensuring long-term supply availability. RoHS3 compliance and MSL 1 rating are maintained. Gate charge is reduced (59 nC versus 87 nC), which may improve switching performance in gate-drive-limited applications.

Secondary Recommendation: STB80NF10T4

The STB80NF10T4 from STMicroelectronics provides higher current capability (80A) and significantly higher power dissipation (300W). This part is Active and widely available with 15,265 units in stock. The on-state resistance is slightly higher (15 mOhm versus 13.9 mOhm), which is acceptable for most applications. Gate charge is elevated (182 nC versus 87 nC), requiring consideration in high-frequency switching designs.

Tertiary Recommendation: STB100N10F7

The STB100N10F7 from STMicroelectronics offers superior on-state resistance (8 mOhm versus 13.9 mOhm) and higher current rating (80A). Power dissipation is rated at 150W, comparable to the original part. This device is Active and suitable for applications requiring lower conduction losses. Gate charge is lower (61 nC versus 87 nC).

Obsolete Alternatives (Supply Chain Dependent):

HUF75645S3ST and NVB6411ANT4G are listed as Obsolete but remain available in limited quantities (1,129 and 990 units respectively). These parts provide higher current ratings (75A and 77A) and increased power dissipation. Selection should be based on immediate availability requirements and long-term supply chain strategy.

Not Recommended:

HUFA75645S3S, while electrically equivalent to HUF75645S3ST, is supplied in Bulk packaging without tape and reel options, which may complicate automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher continuous drain current than the IRFS4510PBF?

A: Yes. Substitute parts rated at 61A or higher are electrically compatible. Higher current ratings provide design margin and do not create incompatibility. The circuit will operate within the substitute part's safe operating area.

Q: What is the significance of on-state resistance (Rds On) variation among substitute parts?

A: On-state resistance directly affects conduction losses and heat generation. Substitute parts with equal or lower Rds On are acceptable. Lower resistance reduces power dissipation and improves efficiency. Higher resistance increases heat generation and may require thermal management review.

Q: Are all substitute parts compatible with the same PCB layout and thermal management design?

A: Yes. All substitute parts use identical D2PAK (TO-263-3) packaging with the same pin configuration and thermal tab dimensions. PCB footprints are directly compatible. However, substitute parts with higher power dissipation ratings may benefit from enhanced thermal management if the original design operated near thermal limits.

Q: Does gate charge variation affect circuit performance?

A: Gate charge affects switching speed and gate driver requirements. Substitute parts with lower gate charge (PSMN013-100BS,118 at 59 nC, STB100N10F7 at 61 nC) switch faster and reduce gate driver stress. Substitute parts with higher gate charge (STB80NF10T4 at 182 nC) require longer switching times and may increase switching losses in high-frequency applications. Gate driver capability must be verified for parts with significantly different gate charge.

Q: Which substitute part has the best availability?

A: STB80NF10T4 has the highest inventory (15,265 units) and Active product status, ensuring immediate availability and long-term supply continuity. PSMN013-100BS,118 is also well-stocked (15,979 units) and Active.

Q: Can I use HUF75645S3ST or NVB6411ANT4G if they are cheaper?

A: Both parts are listed as Obsolete. While currently available in limited quantities, future supply cannot be guaranteed. Selection should prioritize Active status parts (PSMN013-100BS,118, STB100N10F7, STB80NF10T4) for new designs or long-term production.

Q: Is NVB6411ANT4G suitable for automotive applications?

A: NVB6411ANT4G carries AEC-Q101 automotive qualification and is graded for automotive use. This part is suitable for automotive applications requiring qualified components. Other substitute parts do not carry automotive qualification markings in the provided specifications.

Q: What is the difference between Cut Tape (CT) and Bulk packaging?

A: Cut Tape packaging is supplied on continuous tape suitable for automated pick-and-place assembly. Bulk packaging is supplied loose or in trays, requiring manual handling or reel conversion. For automated manufacturing, Cut Tape or Digi-Reel® packaging is preferred. PSMN013-100BS,118 is supplied in Tape & Reel format; STB80NF10T4 and STB100N10F7 are supplied in Cut Tape & Digi-Reel® format.

Q: Do all substitute parts maintain RoHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 Compliant and REACH Unaffected, maintaining environmental and regulatory compliance equivalent to the original IRFS4510PBF.

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