IRL2910SPBF N-Channel 100V 55A MOSFET Equivalent & Substitute Parts

Part Overview

The IRL2910SPBF is an N-Channel MOSFET manufactured by Infineon Technologies, part of the HEXFET® series. This device is rated for 100V drain-to-source voltage with 55A continuous drain current at 25°C case temperature, housed in a D2PAK (TO-263-3) surface mount package. The part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production requirements. The IRL2910SPBF operates across a temperature range of -55°C to 175°C junction temperature and complies with RoHS3 and REACH standards.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	100	V
Continuous Drain Current (Id) @ 25°C	55	A (Tc)
On-State Resistance (Rds On) @ 29A, 10V	26	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2	V (Max)
Gate Charge (Qg) @ 5V	140	nC (Max)
Input Capacitance (Ciss) @ 25V	3700	pF (Max)
Power Dissipation (Max)	3.8 (Ta), 200 (Tc)	W
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 of the IRL2910SPBF is determined by strict electrical and mechanical compatibility within the following parameters:

Critical Matching Parameters:

Drain-to-Source Voltage (Vdss): Must equal 100V
Package Type: Must be D2PAK (TO-263-3) surface mount
FET Type: Must be N-Channel MOSFET
Technology: Must be Metal Oxide (MOSFET)
Operating Temperature Range: Must support -55°C to 175°C (TJ)
Mounting: Surface mount only

Allowable Variation Parameters:

Continuous Drain Current (Id): Substitute parts may range from 42A to 63A; parts rated at or above 55A provide direct replacement capability
On-State Resistance (Rds On): Substitute parts with equal or lower Rds On values maintain or improve performance
Gate Charge (Qg): Lower values reduce switching losses; higher values remain acceptable if within thermal limits
Power Dissipation: Substitute parts with equal or higher power ratings ensure thermal compatibility
Gate Threshold Voltage (Vgs(th)): Acceptable range 2V to 4V @ specified current levels

All substitute parts listed comply with RoHS3 and REACH standards, matching the compliance profile of the main part.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On @ 10V (mOhm)	Vgs(th) (V)	Qg @ Vgs (nC)	Power Dissipation (W)	Package	Status
IRL2910SPBF	Infineon	100	55 (Tc)	26 @ 29A	2 @ 250µA	140 @ 5V	200 (Tc)	D2PAK	Discontinued
BUK7626-100B,118	Nexperia	100	49 (Tc)	26 @ 25A	4 @ 1mA	38 @ 10V	157 (Tc)	D2PAK	Obsolete
BUK9620-100B,118	Nexperia	100	63 (Tc)	18.5 @ 25A	2 @ 1mA	53.4 @ 5V	203 (Tc)	D2PAK	Active
BUK9629-100B,118	Nexperia	100	46 (Tc)	27 @ 25A	2 @ 1mA	33 @ 5V	157 (Tc)	D2PAK	Active
HUF75639S3ST	Fairchild	100	56 (Tc)	25 @ 56A	4 @ 250µA	130 @ 20V	200 (Tc)	D2PAK	Active
HUF76639S3ST	onsemi	100	51 (Tc)	26 @ 51A	3 @ 250µA	86 @ 10V	180 (Tc)	D2PAK	Active
NTB6413ANT4G	onsemi	100	42 (Tc)	28 @ 42A	4 @ 250µA	51 @ 10V	136 (Tc)	D2PAK	Active
PHB47NQ10T,118	Nexperia	100	47 (Tc)	28 @ 25A	4 @ 1mA	66 @ 10V	166 (Tc)	D2PAK	Active
PSMN016-100BS,118	Nexperia	100	57 (Tj)	16 @ 15A	4 @ 1mA	49 @ 10V	148 (Tc)	D2PAK	Active
PSMN034-100BS,118	Nexperia	100	32 (Tc)	34.5 @ 15A	4 @ 1mA	23.8 @ 10V	86 (Tc)	D2PAK	Active
RSJ550N10TL	Rohm	100	55 (Ta)	16.8 @ 27.5A	2.5 @ 1mA	143 @ 10V	100 (Tc)	D2PAK	Active

Engineering Selection Recommendations

Direct Replacement (Highest Compatibility):

BUK9620-100B,118 and HUF75639S3ST are the primary direct replacements for the IRL2910SPBF. Both devices maintain 100V Vdss, D2PAK packaging, and operating temperature range of -55°C to 175°C. BUK9620-100B,118 exceeds the drain current specification at 63A and provides superior on-state resistance (18.5 mOhm), with active product status and AEC-Q101 automotive qualification. HUF75639S3ST matches the drain current specification at 56A with equivalent on-state resistance (25 mOhm) and maintains 200W power dissipation identical to the main part.

Secondary Substitutes (Acceptable with Application Review):

PSMN016-100BS,118 provides the highest drain current rating at 57A with the lowest on-state resistance at 16 mOhm, suitable for applications requiring reduced conduction losses. HUF76639S3ST and BUK9629-100B,118 offer drain current ratings of 51A and 46A respectively, with active product status and automotive qualification (BUK9629-100B,118). These parts are suitable for applications where the full 55A specification is not required.

Limited Substitutes (Current Derating Required):

NTB6413ANT4G and PSMN034-100BS,118 have drain current ratings below 55A (42A and 32A respectively) and are suitable only for applications operating below the original specification. PSMN034-100BS,118 is particularly limited due to its 32A rating and should be used only in designs with significantly reduced current requirements.

Compliance and Certification:

All substitute parts comply with RoHS3 and REACH standards. BUK9620-100B,118 and BUK9629-100B,118 carry AEC-Q101 automotive qualification, suitable for automotive and industrial applications requiring enhanced reliability documentation.

Frequently Asked Questions (FAQ)

Q: Can BUK9620-100B,118 directly replace IRL2910SPBF in all applications?

A: BUK9620-100B,118 is electrically compatible as a direct replacement. It maintains the same 100V Vdss rating, D2PAK package, and operating temperature range. The higher drain current rating (63A vs. 55A) and lower on-state resistance (18.5 mOhm vs. 26 mOhm) provide improved performance margins. No circuit modifications are required.

Q: What is the difference between drain current ratings specified as (Tc) versus (Ta)?

A: (Tc) indicates case temperature measurement, while (Ta) indicates ambient temperature measurement. Both represent continuous drain current capability under specified thermal conditions. Parts rated at (Tc) typically reflect more conservative thermal assumptions. The IRL2910SPBF uses (Tc) specification at 55A.

Q: Is HUF75639S3ST suitable for high-frequency switching applications?

A: HUF75639S3ST has a gate charge of 130 nC @ 20V, comparable to the IRL2910SPBF at 140 nC @ 5V. The slightly lower gate charge reduces switching losses. Input capacitance is 2000 pF, lower than the main part's 3700 pF, which improves high-frequency performance. The part is suitable for switching applications within its thermal and current ratings.

Q: Why does PSMN016-100BS,118 have lower on-state resistance than the main part?

A: PSMN016-100BS,118 exhibits 16 mOhm on-state resistance compared to 26 mOhm for IRL2910SPBF. This difference reflects different die technology and geometry within the same voltage class. Lower on-state resistance reduces conduction losses and heat generation, improving overall efficiency in power conversion applications.

Q: Can NTB6413ANT4G be used in applications requiring 55A continuous current?

A: No. NTB6413ANT4G is rated for 42A continuous drain current at 25°C case temperature. Using this part in applications requiring 55A would exceed its current rating and cause excessive junction temperature rise, potentially leading to device failure. This part is suitable only for applications with current requirements at or below 42A.

Q: What packaging considerations apply when substituting these parts?

A: All listed substitute parts use D2PAK (TO-263-3) surface mount packaging, identical to the IRL2910SPBF. PCB footprints, thermal pad dimensions, and lead spacing are standardized across this package type. No PCB layout modifications are required for mechanical compatibility.

Q: Does BUK9629-100B,118 require different gate drive voltage than IRL2910SPBF?

A: BUK9629-100B,118 has a gate threshold voltage of 2V @ 1mA, matching the IRL2910SPBF specification of 2V @ 250µA. Both parts operate with standard gate drive voltages of 4.5V to 10V. No gate drive circuit modifications are necessary.

Q: Which substitute part offers the best thermal performance?

A: BUK9620-100B,118 provides the highest power dissipation rating at 203W (Tc), exceeding the IRL2910SPBF's 200W rating. Combined with its lower on-state resistance (18.5 mOhm), this part generates less heat during operation. For thermally constrained applications, BUK9620-100B,118 is the optimal choice.

Q: Are automotive-qualified alternatives available?

A: Yes. BUK9620-100B,118 and BUK9629-100B,118 both carry AEC-Q101 automotive qualification. These parts are suitable for automotive and industrial applications requiring enhanced reliability documentation and qualification traceability.

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