IRL2910STRL N-Channel 100V 55A MOSFET Equivalent & Substitute Parts

Part Overview

The IRL2910STRL is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage with 55A continuous drain current in D2PAK surface mount packaging. This device is classified as Obsolete product status. Due to obsolescence, equivalent substitute parts with matching or superior electrical characteristics and compatible packaging are necessary for design continuity and procurement flexibility. Substitute parts must maintain compatibility with 100V system voltage, support equivalent or higher current ratings, and utilize the same D2PAK surface mount package footprint.

Key Parameters

Parameter	Value	Specification
Drain-to-Source Voltage (Vdss)	100 V	Maximum rated voltage
Continuous Drain Current (Id) @ 25°C	55 A (Tc)	At case temperature
On-State Resistance (Rds On)	26 mOhm @ 29A, 10V	Maximum at specified conditions
Gate Threshold Voltage (Vgs(th))	2 V @ 250µA	Maximum
Gate Charge (Qg)	140 nC @ 5V	Maximum
Power Dissipation	3.8W (Ta), 200W (Tc)	Ambient and case temperature
Operating Temperature Range	-55°C to 175°C	Junction temperature
Package Type	D2PAK (TO-263-3)	Surface mount, 2 leads + tab
Series	HEXFET®	Infineon technology designation

Substitute Part Grouping Explanation

Substitution eligibility for the IRL2910STRL is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Drain-to-Source Voltage (Vdss): Must equal or exceed 100V
Package Type: Must be D2PAK (TO-263-3) surface mount
FET Type: Must be N-Channel MOSFET
Mounting: Surface mount only

Performance Matching Criteria:

Continuous Drain Current (Id): Substitute must support 55A or higher at 25°C case temperature
On-State Resistance (Rds On): Lower or equal values preferred for thermal performance
Operating Temperature: Must support -55°C to 175°C range
Gate Threshold Voltage: Must be compatible with 4V to 10V drive voltage range

Compliance Criteria:

RoHS Status: Active product status preferred; obsolete parts acceptable only if no active alternatives exist
Moisture Sensitivity Level: MSL 1 (Unlimited) required for storage and handling compatibility

Substitute parts are grouped into two categories: Direct Manufacturer Equivalents (same base part number with different packaging designation) and Cross-Manufacturer Alternatives (different manufacturers with equivalent electrical performance).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Package	Status	RoHS
IRL2910STRL	Infineon	100	55	26 @ 29A, 10V	140 @ 5V	D2PAK	Obsolete	Non-compliant
IRL2910STRLPBF	Infineon	100	55	26 @ 29A, 10V	140 @ 5V	D2PAK	Active	ROHS3
HUF75639S3ST	Fairchild	100	56	25 @ 56A, 10V	130 @ 20V	D2PAK	Active	Not specified
PSMN016-100BS,118	Nexperia	100	57	16 @ 15A, 10V	49 @ 10V	D2PAK	Active	ROHS3
PSMN034-100BS,118	Nexperia	100	32	34.5 @ 15A, 10V	23.8 @ 10V	D2PAK	Active	ROHS3
BUK7626-100B,118	Nexperia	100	49	26 @ 25A, 10V	38 @ 10V	D2PAK	Obsolete	ROHS3
BUK9629-100B,118	Nexperia	100	46	27 @ 25A, 10V	33 @ 5V	D2PAK	Active	ROHS3
RSJ400N10TL	Rohm	100	40	27 @ 40A, 10V	90 @ 10V	D2PAK	Active	ROHS3
STB40NF10LT4	STMicroelectronics	100	40	33 @ 20A, 10V	64 @ 4.5V	D2PAK	Active	ROHS3

Engineering Selection Recommendations

Primary Recommendation: IRL2910STRLPBF

The IRL2910STRLPBF is the direct equivalent of the obsolete IRL2910STRL. This part maintains identical electrical specifications including 100V Vdss, 55A continuous drain current, 26mOhm Rds On, and 140nC gate charge. The primary difference is packaging designation (Cut Tape & Digi-Reel® versus Tape & Reel) and product status (Active versus Obsolete). RoHS3 compliance is achieved. This part is the preferred substitute for direct replacement in existing designs without modification.

Secondary Recommendations for Current-Matched Performance:

HUF75639S3ST (Fairchild UltraFET™ series) provides 56A continuous drain current with superior on-state resistance of 25mOhm at 56A, 10V. Power dissipation rating of 200W (Tc) matches the original part. Active product status ensures long-term availability. Gate charge of 130nC is slightly lower, reducing switching losses.

PSMN016-100BS,118 (Nexperia) delivers 57A continuous drain current with significantly improved on-state resistance of 16mOhm at 15A, 10V. This represents the lowest Rds On among available substitutes, resulting in reduced power dissipation and improved thermal performance. Active product status and ROHS3 compliance are confirmed.

Alternative for Current-Reduced Applications:

PSMN034-100BS,118 (Nexperia) is suitable only for applications where 32A continuous drain current is sufficient. This part offers lower gate charge (23.8nC) and reduced input capacitance, beneficial for high-frequency switching applications. Not recommended for designs requiring the full 55A rating of the original part.

Automotive-Grade Options:

BUK9629-100B,118 (Nexperia TrenchMOS™) is AEC-Q101 qualified with 46A continuous drain current and 27mOhm Rds On. Active product status and ROHS3 compliance are confirmed. Suitable for automotive applications requiring qualification documentation.

Lower Current Alternatives:

RSJ400N10TL (Rohm) and STB40NF10LT4 (STMicroelectronics) both support 40A continuous drain current. These parts are suitable only for designs where 40A operation is acceptable. RSJ400N10TL offers 27mOhm Rds On; STB40NF10LT4 provides 33mOhm Rds On. Both are Active status with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can IRL2910STRLPBF be used as a direct replacement for IRL2910STRL?

A: Yes. IRL2910STRLPBF is the active-status equivalent of the obsolete IRL2910STRL. Electrical specifications are identical. The packaging designation differs (Cut Tape & Digi-Reel® versus Tape & Reel), but the physical D2PAK package footprint and pinout are identical. No circuit modifications are required.

Q: What is the difference between IRL2910STRL and IRL2910STRLPBF?

A: The primary differences are product status and packaging format. IRL2910STRL is Obsolete and supplied in Tape & Reel format. IRL2910STRLPBF is Active and supplied in Cut Tape & Digi-Reel® format. Electrical performance and D2PAK package specifications are identical. RoHS compliance differs: IRL2910STRL is non-compliant; IRL2910STRLPBF is ROHS3 compliant.

Q: Which substitute part offers the best on-state resistance performance?

A: PSMN016-100BS,118 provides the lowest on-state resistance at 16mOhm (measured at 15A, 10V). This represents a 38% improvement over the original IRL2910STRL specification of 26mOhm. Lower Rds On reduces conduction losses and improves thermal efficiency.

Q: Can I use PSMN034-100BS,118 in a design requiring 55A continuous current?

A: No. PSMN034-100BS,118 is rated for only 32A continuous drain current. Using this part in a 55A application would exceed its current rating and cause thermal failure. This part is suitable only for designs where 32A operation is acceptable.

Q: Are all substitute parts available in D2PAK packaging?

A: Yes. All substitute parts listed are supplied in D2PAK (TO-263-3) surface mount packaging with identical footprint and pinout compatibility. RSJ400N10TL uses LPTS package designation, which is mechanically and electrically equivalent to D2PAK for this application.

Q: Which substitute parts are AEC-Q101 automotive qualified?

A: BUK7626-100B,118 and BUK9629-100B,118 (both Nexperia TrenchMOS™ series) carry AEC-Q101 automotive qualification. These parts are suitable for automotive applications requiring qualification documentation. BUK9629-100B,118 is Active status; BUK7626-100B,118 is Obsolete.

Q: What is the impact of gate charge differences on circuit performance?

A: Gate charge (Qg) affects switching speed and driver power requirements. The original IRL2910STRL specifies 140nC at 5V. HUF75639S3ST offers 130nC (lower), reducing driver current demand. PSMN016-100BS,118 specifies 49nC (significantly lower), enabling faster switching and reduced driver losses. Lower gate charge is beneficial for high-frequency applications.

Q: Are all substitute parts RoHS3 compliant?

A: Most active-status substitutes are ROHS3 compliant: IRL2910STRLPBF, BUK7626-100B,118, BUK9629-100B,118, PSMN016-100BS,118, PSMN034-100BS,118, RSJ400N10TL, and STB40NF10LT4. The original IRL2910STRL is RoHS non-compliant. HUF75639S3ST RoHS status is not specified in available documentation.

Q: What is the operating temperature range compatibility?

A: All substitute parts support the -55°C to 175°C junction temperature range of the original IRL2910STRL, except RSJ400N10TL which specifies 150°C maximum. For applications requiring full -55°C to 175°C operation, RSJ400N10TL is not suitable.

Q: Can I substitute a lower-current part if my application uses less than 55A?

A: Yes, provided the selected substitute meets or exceeds your actual current requirement. PSMN034-100BS,118 (32A), RSJ400N10TL (40A), and STB40NF10LT4 (40A) are suitable for applications using their respective current ratings or lower. However, if future design revisions may require higher current, selecting a higher-rated part provides design margin.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel® packaging?

A: Both are surface mount delivery formats for the same D2PAK package. Tape & Reel supplies parts on continuous tape in full reel quantities. Cut Tape & Digi-Reel® supplies parts on tape cut to specific lengths or on Digi-Reel® (smaller reel format). Physical package dimensions and PCB footprint are identical. Selection depends on procurement quantity and handling equipment compatibility.

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