IRF540ZSPBF N-Channel 100V 36A MOSFET Equivalent & Substitute Parts

Part Overview

The IRF540ZSPBF is an N-Channel MOSFET manufactured by Infineon Technologies in the HEXFET® series, rated for 100V drain-to-source voltage and 36A continuous drain current at 25°C. The device is housed in a D2PAK (TO-263-3) surface mount package with a maximum power dissipation of 92W at the case temperature. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	36	A (Tc)
On-State Resistance (Rds On) @ 22A, 10V	26.5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 10V	63	nC
Power Dissipation (Max)	92	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	D2PAK (TO-263-3)	Surface Mount
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the IRF540ZSPBF is determined by the following criteria:

Mandatory Electrical Parameters:

Drain-to-Source Voltage (Vdss): 100V minimum
Continuous Drain Current (Id): 36A or greater at 25°C
Gate-to-Source Voltage (Vgs): ±20V or greater range
Operating Temperature Range: -55°C to 175°C minimum

Mandatory Mechanical Parameters:

Package Type: D2PAK (TO-263-3) surface mount configuration
Lead count and tab configuration: 2 Leads + Tab

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must satisfy all mandatory electrical parameters while maintaining identical package geometry and compliance certifications. On-state resistance, gate charge, and power dissipation values are secondary selection criteria that may vary within acceptable application limits.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On @ 10V (mOhm)	Vgs(th) (V)	Qg @ 10V (nC)	Power Diss. (W)	Package	Status
IRF540ZSPBF	Infineon	100	36	26.5	4	63	92	D2PAK	Discontinued
IPB50N10S3L16ATMA1	Infineon	100	50	15.4	2.4	64	100	TO-263-3	Active
BUK7626-100B,118	Nexperia	100	49	26	4	38	157	D2PAK	Obsolete
BUK9629-100B,118	Nexperia	100	46	27	2	33	157	D2PAK	Active
HUF76639S3ST	onsemi	100	51	26	3	86	180	TO-263	Active
IRF540SPBF	Vishay Siliconix	100	28	77	4	72	150	TO-263	Active
IRF540STRLPBF	Vishay Siliconix	100	28	77	4	72	150	TO-263	Active
IRF540STRRPBF	Vishay Siliconix	100	28	77	4	72	150	TO-263	Active
NTB6413ANT4G	onsemi	100	42	28	4	51	136	D2PAK	Active
PSMN016-100BS,118	Nexperia	100	57	16	4	49	148	D2PAK	Active
PSMN034-100BS,118	Nexperia	100	32	34.5	4	23.8	86	D2PAK	Active

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The following parts satisfy all mandatory electrical and mechanical parameters while maintaining active product status and full RoHS3 compliance:

BUK9629-100B,118 (Nexperia): 46A continuous drain current, 27mOhm Rds On, D2PAK package, Active status, AEC-Q101 automotive qualified
NTB6413ANT4G (onsemi): 42A continuous drain current, 28mOhm Rds On, D2PAK package, Active status, 105,400 units in stock
PSMN016-100BS,118 (Nexperia): 57A continuous drain current, 16mOhm Rds On, D2PAK package, Active status
HUF76639S3ST (onsemi): 51A continuous drain current, 26mOhm Rds On, TO-263 D2PAK package, Active status

Secondary Substitutes (Reduced Current Rating):

PSMN034-100BS,118 (Nexperia): 32A continuous drain current, 34.5mOhm Rds On, D2PAK package, Active status. Suitable for applications where 32A meets design requirements.
IRF540SPBF, IRF540STRLPBF, IRF540STRRPBF (Vishay Siliconix): 28A continuous drain current, 77mOhm Rds On, TO-263 D2PAK package, Active status. Suitable only for applications rated at 28A or below.

Not Recommended:

IPB50N10S3L16ATMA1 (Infineon): Package designation PG-TO263-3-2 differs from standard D2PAK geometry
BUK7626-100B,118 (Nexperia): Obsolete product status

Frequently Asked Questions (FAQ)

Q: Can IRF540SPBF replace IRF540ZSPBF in all applications?

A: IRF540SPBF is electrically compatible at 100V Vdss and shares the D2PAK package. However, it is rated for 28A continuous drain current versus 36A for the IRF540ZSPBF. Substitution is valid only if the application current requirement does not exceed 28A at 25°C.

Q: What is the difference between D2PAK and TO-263-3 package designations?

A: D2PAK and TO-263-3 are equivalent package designations for the same physical form factor: a surface mount package with 2 leads plus a tab. All listed substitutes use this identical package geometry and are mechanically interchangeable.

Q: Why is BUK9629-100B,118 preferred over BUK7626-100B,118?

A: BUK9629-100B,118 maintains Active product status with current availability, while BUK7626-100B,118 is Obsolete. Both are electrically compatible, but Active status ensures long-term supply continuity and manufacturing support.

Q: Does PSMN034-100BS,118 meet the 36A requirement?

A: PSMN034-100BS,118 is rated for 32A continuous drain current, which is below the 36A specification of IRF540ZSPBF. This part is suitable only for applications where the actual current requirement is 32A or less.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 Compliant certification and Moisture Sensitivity Level 1 (Unlimited), matching the compliance profile of the IRF540ZSPBF.

Q: What is the significance of AEC-Q101 qualification on BUK9629-100B,118?

A: AEC-Q101 qualification indicates the part meets automotive-grade reliability standards. This certification is relevant only if the application requires automotive-grade components. For general industrial applications, this qualification is not a requirement.

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