IRLR8103VTRLPBF N-Channel 30V 91A MOSFET Equivalent & Substitute Parts

Part Overview

The IRLR8103VTRLPBF is an N-Channel MOSFET manufactured by Infineon Technologies, part of the HEXFET® series. This device features a 30V drain-to-source voltage rating with 91A continuous drain current capability and 115W maximum power dissipation in a Surface Mount TO-252AA (DPAK) package. The part is classified as Obsolete, making identification of functionally equivalent active alternatives necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	91	A (Tc)
On-Resistance (Rds On Max) @ Id, Vgs	9 mOhm @ 15A, 10V	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ Id	3	V @ 250µA
Gate Charge (Qg Max) @ Vgs	27	nC @ 5V
Maximum Gate Voltage (Vgs Max)	±20	V
Input Capacitance (Ciss Max) @ Vds	2672	pF @ 16V
Power Dissipation (Max)	115	W (Tc)
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	TO-252-3, DPAK	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the IRLR8103VTRLPBF is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal 30V
Package Type: Must be TO-252-3 (DPAK) Surface Mount
FET Type: Must be N-Channel MOSFET
Technology: Must be Metal Oxide (MOSFET)
Mounting Type: Must be Surface Mount
Moisture Sensitivity Level: Must be 1 (Unlimited)

Secondary Compatibility Parameters:

Gate Voltage Range (Vgs Max): ±20V
Operating Temperature Range: Minimum -55°C to maximum ≥150°C
On-Resistance (Rds On): Comparable performance at specified gate voltage
Continuous Drain Current: Rated for application requirements

Substitute parts are grouped based on their ability to meet these criteria while maintaining electrical performance within acceptable operating margins. Parts with identical or superior ratings in continuous drain current, power dissipation, and thermal characteristics are considered direct substitutes.

Parameter Comparison

Parameter	IRLR8103VTRLPBF	IPD090N03LGATMA1	IPD50N03S2L06ATMA1	DMN3010LK3-13	FDD8876	FDD8880	STD100N3LF3
Manufacturer	Infineon	Infineon	Infineon	Diodes Inc.	onsemi	onsemi	STMicroelectronics
Vdss (V)	30	30	30	30	30	30	30
Id @ 25°C (A)	91 (Tc)	40 (Tc)	50 (Tc)	43 (Tc)	73 (Tc)	58 (Tc)	80 (Tc)
Rds On Max (mOhm)	9 @ 15A, 10V	9 @ 30A, 10V	6.4 @ 50A, 10V	9.5 @ 18A, 10V	8.2 @ 35A, 10V	9 @ 35A, 10V	5.5 @ 40A, 10V
Vgs(th) Max (V)	3 @ 250µA	2.2 @ 250µA	2 @ 85µA	2.5 @ 250µA	2.5 @ 250µA	2.5 @ 250µA	2.5 @ 250µA
Qg Max (nC)	27 @ 5V	15 @ 10V	68 @ 10V	37 @ 10V	47 @ 10V	31 @ 10V	27 @ 5V
Ciss Max (pF)	2672 @ 16V	1600 @ 15V	1900 @ 25V	2075 @ 15V	1700 @ 15V	1260 @ 15V	2060 @ 25V
Power Dissipation Max (W)	115 (Tc)	42 (Tc)	136 (Tc)	1.6 (Ta)	70 (Tc)	55 (Tc)	110 (Tc)
Operating Temp Range (°C)	-55 to 150	-55 to 175	-55 to 175	-55 to 150	-55 to 175	-55 to 175	-55 to 175
Package	TO-252AA (DPAK)	PG-TO252-3-11	PG-TO252-3-11	TO-252-3	TO-252AA	TO-252AA	DPAK
Product Status	Obsolete	Active	Active	Active	Obsolete	Active	Obsolete
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Active Status Preference: For new designs and production continuity, IPD50N03S2L06ATMA1 and FDD8880 are recommended as primary substitutes due to Active product status. IPD50N03S2L06ATMA1 provides superior power dissipation capability (136W vs. 115W) and extended operating temperature range (-55°C to 175°C). FDD8880 maintains comparable electrical characteristics with 58A continuous drain current and Active status from onsemi.

Compliance and Certification: IPD50N03S2L06ATMA1 carries AEC-Q101 automotive qualification and ROHS3 compliance, suitable for automotive and industrial applications. All active substitute candidates (IPD090N03LGATMA1, IPD50N03S2L06ATMA1, DMN3010LK3-13, FDD8880) are ROHS3 compliant and REACH unaffected.

Current Rating Considerations: STD100N3LF3 (80A) and FDD8876 (73A) approach the original 91A rating most closely. However, STD100N3LF3 is Obsolete. FDD8876 is also Obsolete but maintains 73A continuous drain current. For active alternatives, IPD50N03S2L06ATMA1 (50A) and FDD8880 (58A) provide adequate current handling for most applications requiring the IRLR8103VTRLPBF.

Thermal Performance: IPD50N03S2L06ATMA1 offers the highest power dissipation rating (136W) among active substitutes, exceeding the original part's 115W specification. This provides thermal margin for demanding applications.

Package Compatibility: All substitute parts maintain TO-252-3 (DPAK) Surface Mount packaging with identical pinout and mechanical compatibility. Moisture Sensitivity Level 1 (Unlimited) is consistent across all candidates.

Frequently Asked Questions (FAQ)

Q: Can IPD090N03LGATMA1 directly replace IRLR8103VTRLPBF in all applications?

A: IPD090N03LGATMA1 is electrically compatible but rated for 40A continuous drain current versus the original 91A. This substitute is suitable only for applications requiring ≤40A continuous current. All other electrical parameters (Vdss, Vgs, package, temperature range) are compatible.

Q: What is the difference between Tc and Ta current ratings?

A: Tc (case temperature) ratings assume active thermal management and represent maximum current at specified case temperature. Ta (ambient temperature) ratings represent maximum current at ambient temperature without active cooling. DMN3010LK3-13 specifies 13.1A (Ta) and 43A (Tc), indicating significant thermal management dependency.

Q: Why is IPD50N03S2L06ATMA1 recommended over other substitutes?

A: IPD50N03S2L06ATMA1 combines Active product status, AEC-Q101 automotive qualification, superior power dissipation (136W), extended operating temperature range (175°C maximum), and 50A continuous current capability. These characteristics provide the best long-term availability and performance margin for replacement applications.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts (IPD090N03LGATMA1, IPD50N03S2L06ATMA1, DMN3010LK3-13, FDD8880) are ROHS3 compliant. The original IRLR8103VTRLPBF RoHS status is not specified in the provided data.

Q: Can FDD8880 replace IRLR8103VTRLPBF in high-current applications?

A: FDD8880 is rated for 58A continuous drain current, which is below the original 91A specification. This substitute is suitable for applications requiring ≤58A. FDD8880 maintains Active product status and offers 55W power dissipation with extended temperature range (-55°C to 175°C).

Q: What is the significance of gate charge (Qg) differences between parts?

A: Gate charge affects switching speed and driver circuit requirements. IRLR8103VTRLPBF specifies 27 nC @ 5V. IPD090N03LGATMA1 (15 nC @ 10V) has lower gate charge, enabling faster switching. IPD50N03S2L06ATMA1 (68 nC @ 10V) has higher gate charge, requiring more driver current but providing better noise immunity.

Q: Is package compatibility guaranteed across all substitutes?

A: All substitute parts use TO-252-3 (DPAK) Surface Mount packaging with identical mechanical dimensions and pinout. Direct PCB footprint compatibility is confirmed. Moisture Sensitivity Level 1 (Unlimited) is consistent across all parts.

Q: Why are STD100N3LF3 and FDD8876 listed if they are Obsolete?

A: These parts are included for reference in legacy system maintenance and repair scenarios. For new designs, active alternatives (IPD50N03S2L06ATMA1, FDD8880, IPD090N03LGATMA1, DMN3010LK3-13) are preferred to ensure long-term supply chain continuity.

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