IRLR014NTRL N-Channel 55V 10A MOSFET DPAK Equivalent & Substitute Parts

Part Overview

The IRLR014NTRL is an N-Channel metal oxide semiconductor field-effect transistor (MOSFET) manufactured by Infineon Technologies, rated for 55V drain-to-source voltage and 10A continuous drain current in a surface mount DPAK package. This component is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this MOSFET topology.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	55	V
Continuous Drain Current (Id) @ 25°C	10	A
On-State Resistance (Rds On) @ 6A, 10V	140	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	1	V
Gate Charge (Qg) @ 5V	7.9	nC
Power Dissipation (Max)	28	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-252-3 DPAK	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution logic for the IRLR014NTRL is based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Minimum 55V (equal or higher acceptable)
Continuous Drain Current (Id): Minimum 10A (equal or higher acceptable)
On-State Resistance (Rds On): Lower or equal values preferred for thermal performance
Package Type: TO-252-3 DPAK (mechanical compatibility required)
Mounting Type: Surface Mount (PCB assembly compatibility)
Operating Temperature Range: Minimum -55°C to 175°C (full range preferred)

Substitute parts are grouped into two categories:

Category A - Direct Electrical Equivalents (Vdss 55-60V, Id ≥10A): Parts meeting or exceeding the voltage and current ratings with compatible DPAK packaging. These include BUK72150-55A,118 (11A, 55V), RFD3055LESM9A (11A, 60V), and IRLR024PBF (14A, 60V).

Category B - Voltage-Elevated Alternatives (Vdss >60V): Parts with higher voltage ratings suitable for applications with voltage margin requirements, such as STD6NF10T4 (100V, 6A). These require design verification for current capacity.

Category C - Same Base Part Number Variants (IRLR014 series): Vishay Siliconix variants including IRLR014PBF, IRLR014TR, IRLR014TRL, IRLR014TRLPBF, IRLR014TRPBF, and IRLR014TRR. These share identical electrical specifications (60V, 7.7A) but differ in packaging format and RoHS compliance status.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Power Diss. (W)	Temp Range (°C)	Package	Status
IRLR014NTRL	Infineon	55	10	140 @ 6A, 10V	7.9 @ 5V	28	-55 to 175	DPAK	Obsolete
BUK72150-55A,118	Nexperia	55	11	150 @ 5A, 10V	5.5 @ 10V	36	-55 to 175	DPAK	Obsolete
IRLR014PBF	Vishay	60	7.7	200 @ 4.6A, 5V	8.4 @ 5V	25	-55 to 150	DPAK	Active
IRLR014TRLPBF	Vishay	60	7.7	200 @ 4.6A, 5V	8.4 @ 5V	25	-55 to 150	DPAK	Active
IRLR014TRPBF	Vishay	60	7.7	200 @ 4.6A, 5V	8.4 @ 5V	25	-55 to 150	DPAK	Active
IRLR024PBF	Vishay	60	14	100 @ 8.4A, 5V	18 @ 5V	42	-55 to 150	DPAK	Active
RFD3055LESM9A	onsemi	60	11	107 @ 8A, 5V	11.3 @ 10V	38	-55 to 175	DPAK	Active
STD6NF10T4	STMicroelectronics	100	6	250 @ 3A, 10V	14 @ 10V	30	-65 to 175	DPAK	Active

Engineering Selection Recommendations

For Direct Replacement (Minimum Design Changes):

IRLR014TRLPBF and IRLR014TRPBF are recommended as primary substitutes. Both are active product status from Vishay Siliconix with ROHS3 compliance. While rated at 60V (5V higher than the original 55V specification), this provides voltage margin without exceeding typical circuit design limits. Current rating of 7.7A is lower than the original 10A; applications requiring full 10A continuous current must select higher-current alternatives.

For Enhanced Current Capacity:

IRLR024PBF provides 14A continuous drain current at 60V with improved on-state resistance (100mOhm vs. 140mOhm), supporting higher power applications. Active product status and ROHS3 compliance ensure long-term availability. Power dissipation increases to 42W; thermal design review is required.

For Voltage-Elevated Applications:

RFD3055LESM9A (onsemi) offers 11A at 60V with superior on-state resistance (107mOhm) and maintains the full -55°C to 175°C operating range of the original part. ROHS3 compliance and active status support production continuity.

For Voltage-Margin Applications:

STD6NF10T4 (STMicroelectronics) provides 100V rating with extended temperature range (-65°C to 175°C). Current capacity is reduced to 6A; this part is suitable only for applications with lower current requirements or where voltage headroom is critical.

Compliance Considerations:

BUK72150-55A,118 maintains the original 55V specification with 11A capacity but carries obsolete product status. Use only when existing inventory is available and long-term supply is not required. RoHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q1: Can IRLR014TRLPBF directly replace IRLR014NTRL without circuit modification?

IRLR014TRLPBF shares the same DPAK package and mounting type. The 60V rating (vs. 55V original) is compatible with standard circuit designs. However, the 7.7A current rating is lower than the original 10A specification. If the application requires continuous drain current above 7.7A, circuit redesign or alternative part selection is necessary. Gate threshold voltage and gate charge characteristics differ slightly; verify gate drive circuit compatibility.

Q2: What is the difference between IRLR014TRLPBF and IRLR014TRPBF?

Both parts are electrically identical (60V, 7.7A, DPAK package) and manufactured by Vishay Siliconix. IRLR014TRLPBF is supplied in Tape & Reel (TR) packaging format with ROHS3 compliance. IRLR014TRPBF is supplied in Cut Tape (CT) & Digi-Reel® format, also with ROHS3 compliance. Selection depends on assembly equipment compatibility and packaging requirements. Electrical performance is identical.

Q3: Why does RFD3055LESM9A have lower on-state resistance than the original part?

RFD3055LESM9A (onsemi) utilizes advanced semiconductor process technology resulting in 107mOhm on-state resistance compared to 140mOhm for IRLR014NTRL. Lower on-state resistance reduces power dissipation and heat generation during operation. This represents an improvement in thermal performance and efficiency for equivalent voltage and current ratings.

Q4: Is STD6NF10T4 suitable as a substitute for high-voltage applications?

STD6NF10T4 is rated for 100V drain-to-source voltage, providing significant voltage margin above the original 55V specification. However, continuous drain current is limited to 6A, substantially below the original 10A rating. This part is suitable only for applications where voltage headroom is critical and current requirements do not exceed 6A. Higher voltage applications with full current capacity require alternative part selection.

Q5: What does "obsolete product status" mean for BUK72150-55A,118?

Obsolete product status indicates that Nexperia has discontinued active manufacturing and support for this part. While existing inventory may be available from distributors, long-term supply cannot be guaranteed. New designs should not incorporate obsolete parts. Use only when existing stock is available and production quantities are limited.

Q6: Are all substitute parts RoHS compliant?

RoHS compliance status varies. IRLR014TRLPBF, IRLR014TRPBF, IRLR024PBF, RFD3055LESM9A, and STD6NF10T4 are ROHS3 compliant. IRLR014PBF, IRLR014TR, IRLR014TRL, and IRLR014TRR are RoHS non-compliant or have mixed compliance status. For applications requiring RoHS certification, select only parts explicitly marked ROHS3 compliant.

Q7: Can IRLR024PBF be used in place of IRLR014NTRL for all applications?

IRLR024PBF provides higher current capacity (14A vs. 10A) and lower on-state resistance (100mOhm vs. 140mOhm), making it suitable for higher-power applications. The 60V rating is compatible. However, gate charge increases to 18nC (vs. 7.9nC), requiring higher gate drive current. Input capacitance increases to 870pF (vs. 265pF), affecting switching speed. Circuit redesign may be necessary for gate drive and switching frequency optimization.

Q8: What is the significance of gate charge (Qg) differences between parts?

Gate charge determines the energy required to switch the MOSFET on and off. Higher gate charge (e.g., IRLR024PBF at 18nC) requires more gate drive current and longer switching times. Lower gate charge (e.g., BUK72150-55A,118 at 5.5nC) enables faster switching with reduced gate drive requirements. For high-frequency switching applications, lower gate charge is preferred. For low-frequency applications, gate charge has minimal impact.

Q9: Why does operating temperature range differ between substitutes?

Operating temperature range reflects semiconductor process capabilities and manufacturer specifications. IRLR014NTRL and RFD3055LESM9A support -55°C to 175°C. Vishay IRLR014 variants support -55°C to 150°C. STD6NF10T4 supports -65°C to 175°C. Applications requiring full -55°C to 175°C operation should select parts with matching temperature specifications to ensure reliability across the entire operating envelope.

Q10: Is package compatibility guaranteed for all DPAK-rated parts?

All substitute parts listed use TO-252-3 DPAK (2 Leads + Tab) package designation, ensuring mechanical compatibility with PCB footprints designed for IRLR014NTRL. However, verify specific footprint dimensions with component datasheets, as minor variations in lead spacing or tab dimensions may exist between manufacturers. Surface mount assembly equipment compatibility should be confirmed with manufacturing partners.

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