IRLR2908TRLPBF N-Channel MOSFET 80V 30A Equivalent & Substitute Parts

Part Overview

The IRLR2908TRLPBF is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 80V drain-to-source voltage and 30A continuous drain current in a surface mount TO-252AA (DPAK) package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. The part operates across a temperature range of -55°C to 175°C and dissipates up to 120W at the case temperature. Substitution is required due to product discontinuation while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	80	V
Continuous Drain Current (Id) @ 25°C	30	A (Tc)
On-State Resistance (Rds On) @ 23A, 10V	28	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.5	V
Gate Charge (Qg) @ 4.5V	33	nC
Power Dissipation (Max)	120	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3 (DPAK)	Surface Mount
FET Technology	N-Channel MOSFET	Metal Oxide
Series	HEXFET®	Infineon

Substitute Part Grouping Explanation

Substitution of the IRLR2908TRLPBF is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Minimum 80V required; higher ratings (100V) are acceptable for applications not exceeding 80V
Continuous Drain Current (Id): Minimum 30A required at 25°C case temperature
On-State Resistance (Rds On): Maximum 28mOhm @ specified gate voltage to maintain thermal performance
Package Type: TO-252-3 (DPAK) surface mount configuration mandatory
Operating Temperature Range: Minimum -55°C to 175°C required
Gate Threshold Voltage (Vgs(th)): Range 2.4V to 2.5V @ 250µA acceptable
RoHS3 Compliance and MSL Level 1 required

Substitute Categories:

Category 1 - Direct Equivalent (Identical Vdss): IRLR2908TRPBF (Infineon) - Active product status, identical electrical specifications, packaging variant only

Category 2 - Higher Voltage Rating (100V Vdss): IPD30N10S3L34ATMA1 (Infineon OptiMOS™), STD25NF10LT4 (STMicroelectronics STripFET™ II), STD25NF10T4 (STMicroelectronics STripFET™ II), STD26NF10 (STMicroelectronics STripFET™ II), STD40NF10 (STMicroelectronics STripFET™ II), PJD50N10AL_L2_00001 (Panjit International)

Category 3 - Lower Voltage Rating (60V-75V Vdss): STD30NF06LT4 (STMicroelectronics STripFET™), BUK9226-75A,118 (Nexperia TrenchMOS™)

All substitute parts maintain TO-252-3 (DPAK) package configuration, RoHS3 compliance, and MSL Level 1 rating.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Vgs(th) (V)	Qg (nC)	Power Diss. (W)	Temp Range (°C)	Status
IRLR2908TRLPBF	Infineon	80	30	28 @ 23A, 10V	2.5 @ 250µA	33 @ 4.5V	120	-55 to 175	Obsolete
IRLR2908TRPBF	Infineon	80	30	28 @ 23A, 10V	2.5 @ 250µA	33 @ 4.5V	120	-55 to 175	Active
IPD30N10S3L34ATMA1	Infineon	100	30	31 @ 30A, 10V	2.4 @ 29µA	31 @ 10V	57	-55 to 175	Active
BUK9226-75A,118	Nexperia	75	45	24.6 @ 25A, 10V	2 @ 1mA	N/A	114	-55 to 175	Obsolete
PJD50N10AL_L2_00001	Panjit	100	42 (Tc)	25 @ 20A, 10V	2.5 @ 250µA	29 @ 10V	83	-55 to 150	Active
STD25NF10LT4	STMicroelectronics	100	25	35 @ 12.5A, 10V	2.5 @ 250µA	52 @ 5V	100	-55 to 175	Active
STD25NF10T4	STMicroelectronics	100	25	38 @ 12.5A, 10V	4 @ 250µA	55 @ 10V	100	-55 to 175	Active
STD26NF10	STMicroelectronics	100	25	38 @ 12.5A, 10V	4 @ 250µA	55 @ 10V	100	-55 to 175	Active
STD30NF06LT4	STMicroelectronics	60	35	28 @ 18A, 10V	2.5 @ 250µA	31 @ 5V	70	-55 to 175	Active
STD40NF10	STMicroelectronics	100	50	28 @ 25A, 10V	4 @ 250µA	62 @ 10V	125	-55 to 175	Active

Engineering Selection Recommendations

Primary Recommendation - Direct Equivalent:

IRLR2908TRPBF (Infineon Technologies) is the direct active equivalent. This part maintains identical electrical specifications to the obsolete IRLR2908TRLPBF, differing only in packaging format (Cut Tape & Digi-Reel® versus tape-and-reel). Both parts are HEXFET® series, RoHS3 compliant, and MSL Level 1. Selection of IRLR2908TRPBF eliminates all substitution risk and requires no circuit re-evaluation.

Secondary Recommendations - Higher Voltage Rating (100V):

For applications where 80V Vdss is not a hard requirement and circuit design permits higher voltage operation:

IPD30N10S3L34ATMA1 (Infineon OptiMOS™) provides 100V rating with identical 30A continuous current. This part features lower power dissipation (57W vs. 120W) and improved thermal characteristics. Gate threshold voltage (2.4V) and gate charge (31nC) are comparable. Operating temperature range matches the original part (-55°C to 175°C). Active product status ensures long-term availability.

STD40NF10 (STMicroelectronics STripFET™ II) offers 100V rating with 50A continuous current capability, exceeding the original 30A specification. On-state resistance (28mOhm @ 25A, 10V) matches the original part. Power dissipation (125W) and operating temperature range (-55°C to 175°C) are equivalent. Active status and high inventory availability support production continuity.

Tertiary Recommendations - Lower Voltage Rating (60V-75V):

STD30NF06LT4 (STMicroelectronics STripFET™) operates at 60V Vdss with 35A continuous current. On-state resistance (28mOhm @ 18A, 10V) is identical to the original part. This option is suitable only for applications where maximum operating voltage does not exceed 60V. Active product status and high inventory support availability.

BUK9226-75A,118 (Nexperia TrenchMOS™) provides 75V rating with 45A continuous current. On-state resistance (24.6mOhm @ 25A, 10V) is superior to the original part. However, product status is obsolete, limiting long-term procurement viability.

Compliance Verification:

All recommended substitute parts maintain RoHS3 compliance and MSL Level 1 rating. All operate across the required temperature range of -55°C to 175°C. All are packaged in TO-252-3 (DPAK) surface mount configuration compatible with existing PCB layouts.

Frequently Asked Questions (FAQ)

Q1: Can IRLR2908TRPBF directly replace IRLR2908TRLPBF without circuit modification?

A: Yes. IRLR2908TRPBF is the direct active equivalent with identical electrical specifications. The difference is packaging format only (Cut Tape & Digi-Reel® versus standard tape-and-reel). No circuit re-evaluation is required. Both parts are HEXFET® series, RoHS3 compliant, and MSL Level 1.

Q2: What is the primary difference between the obsolete IRLR2908TRLPBF and active IRLR2908TRPBF?

A: Product status only. IRLR2908TRLPBF is obsolete; IRLR2908TRPBF is active. Electrical specifications, thermal characteristics, and package configuration are identical. The active variant ensures continued availability and manufacturing support.

Q3: Can I use a 100V-rated MOSFET in place of the 80V IRLR2908TRLPBF?

A: Yes, provided circuit design does not exceed 80V drain-to-source voltage. Higher voltage-rated devices (100V) are electrically compatible with 80V applications. Verify that gate drive voltage, on-state resistance, and thermal dissipation remain within design specifications. IPD30N10S3L34ATMA1 and STD40NF10 are suitable 100V alternatives.

Q4: What are the key electrical parameters that determine substitution compatibility?

A: Drain-to-Source Voltage (Vdss), Continuous Drain Current (Id), On-State Resistance (Rds On), Gate Threshold Voltage (Vgs(th)), and Power Dissipation (Pmax). All substitute parts must meet or exceed the original part's current rating and maintain Rds On within acceptable limits to preserve thermal performance. Vdss must be equal to or greater than the original specification.

Q5: Are all substitute parts available in the same TO-252-3 (DPAK) package?

A: Yes. All recommended substitute parts are packaged in TO-252-3 (DPAK) surface mount configuration. This ensures mechanical and thermal compatibility with existing PCB layouts. No package re-design is required.

Q6: What is the difference between STD25NF10LT4 and STD25NF10T4?

A: Both are STMicroelectronics STripFET™ II devices rated for 100V and 25A. STD25NF10LT4 specifies drive voltage at 4.5V and 10V with Rds On of 35mOhm @ 12.5A, 10V. STD25NF10T4 specifies drive voltage at 10V only with Rds On of 38mOhm @ 12.5A, 10V. Gate threshold voltage differs (2.5V vs. 4V @ 250µA). Both are active products with identical power dissipation (100W) and operating temperature range (-55°C to 175°C).

Q7: Why does IPD30N10S3L34ATMA1 have lower power dissipation (57W) than the original IRLR2908TRLPBF (120W)?

A: Power dissipation rating reflects thermal performance under specified test conditions. IPD30N10S3L34ATMA1 is an OptiMOS™ device with optimized thermal characteristics. Lower power dissipation indicates superior thermal efficiency, not reduced capability. The part maintains 30A continuous current rating and is suitable for the same applications.

Q8: Can I use STD30NF06LT4 (60V) in an 80V application?

A: No. STD30NF06LT4 is rated for maximum 60V drain-to-source voltage. Using this part in an 80V application exceeds its voltage rating and risks device failure. This part is suitable only for applications where maximum operating voltage does not exceed 60V.

Q9: What does "Active" product status mean versus "Obsolete"?

A: Active status indicates the manufacturer continues production and supports the part for new designs. Obsolete status indicates the manufacturer has discontinued production. Substitution from obsolete to active parts ensures long-term procurement availability and manufacturing support.

Q10: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts are RoHS3 compliant and MSL Level 1 rated. Compliance certifications match the original IRLR2908TRLPBF specifications. REACH status is unaffected for all parts.

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