IRLU014N N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRLU014N is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 55V drain-to-source voltage with 10A continuous drain current. This device features a Through Hole IPAK package and is designed for general-purpose switching applications. The part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

IRLU014N

Infineon TechnologiesIn Stock: 818IRLU014N Datasheet

Current PartRFQ

IRLU024

Vishay SiliconixIn Stock: 1176IRLU024 Datasheet

MFR RecommendedRFQ

RFD3055LE

onsemiIn Stock: 15509RFD3055LE Datasheet

MFR RecommendedRFQ

STD12NF06L-1

STMicroelectronicsIn Stock: 17247STD12NF06L-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRLU014N is determined by the following critical parameters:

Voltage Rating Compatibility: Substitute parts must maintain equal or higher Vdss rating. The IRLU014N operates at 55V; acceptable substitutes operate at 60V or higher, providing adequate voltage margin.

Current Capacity: Substitute parts must support equal or greater continuous drain current. The IRLU014N is rated for 10A; acceptable substitutes are rated for 11A, 12A, or 14A.

On-State Resistance: Lower Rds On values indicate improved efficiency and reduced power dissipation. Substitute parts with Rds On values at or below 140mOhm maintain or improve performance characteristics.

Package Compatibility: All substitute parts utilize Through Hole mounting in IPAK or TO-251AA packages, ensuring mechanical and thermal compatibility with existing PCB designs.

Gate Drive Voltage: Substitute parts must operate within compatible gate voltage ranges. The IRLU014N accepts ±16V; substitute parts with ±10V or ±16V ratings are compatible.

Temperature Range: Operating temperature range of -55°C to 175°C or -55°C to 150°C ensures thermal compatibility across industrial and commercial applications.

Parameter Comparison

Engineering Selection Recommendations

IRLU024 (Vishay Siliconix): This part provides the highest current capacity at 14A and improved Rds On performance at 100mOhm. The TO-251AA package is mechanically compatible with IPAK footprints. IRLU024 maintains Active product status, ensuring long-term availability. However, the maximum operating temperature is limited to 150°C compared to the IRLU014N's 175°C. This part is RoHS non-compliant, matching the original part's compliance status.

RFD3055LE (onsemi): This part offers 11A current capacity with 107mOhm Rds On and maintains the full -55°C to 175°C operating temperature range. The I-PAK package provides direct mechanical compatibility. RFD3055LE is ROHS3 compliant, offering improved environmental compliance. However, the part is classified as Obsolete, limiting long-term procurement viability.

STD12NF06L-1 (STMicroelectronics): This part delivers 12A current capacity with 100mOhm Rds On and maintains the full -55°C to 175°C operating temperature range. The I-PAK package ensures mechanical compatibility. STD12NF06L-1 is Active and ROHS3 compliant, providing both availability and environmental compliance advantages. The STripFET™ II series designation indicates advanced process technology.

For new designs requiring long-term support and environmental compliance, STD12NF06L-1 is the preferred substitute. For applications requiring maximum current capacity, IRLU024 is suitable. For applications requiring maximum temperature range with current compliance, RFD3055LE is acceptable despite Obsolete status.

Frequently Asked Questions (FAQ)

Q: Can IRLU024 directly replace IRLU014N in existing designs?

A: IRLU024 is mechanically compatible via TO-251AA package compatibility with IPAK footprints. Electrical parameters are superior (14A vs 10A, 100mOhm vs 140mOhm). The primary limitation is maximum operating temperature of 150°C versus 175°C for IRLU014N. Verify application temperature requirements before substitution.

Q: What is the primary difference between RFD3055LE and STD12NF06L-1?

A: Both parts support 11-12A current with comparable Rds On values and full temperature range compatibility. RFD3055LE is Obsolete with ROHS3 compliance; STD12NF06L-1 is Active with ROHS3 compliance. For new procurement, STD12NF06L-1 offers superior long-term availability.

Q: Are all substitute parts pin-compatible with IRLU014N?

A: All substitute parts use TO-251-3 or TO-251AA packages with identical pin configurations (Gate, Drain, Source). PCB footprints designed for IPAK or TO-251AA packages accommodate all listed substitutes without modification.

Q: Does gate charge difference affect circuit design?

A: IRLU014N has 7.9nC gate charge; substitutes range from 10nC to 18nC. Higher gate charge requires slightly longer switching times and increased gate drive current. For most applications, this difference is negligible. High-frequency switching circuits (>100kHz) should verify gate drive capability.

Q: Which substitute offers the best thermal performance?

A: STD12NF06L-1 and RFD3055LE both offer 38-42.8W power dissipation with improved Rds On values, resulting in lower junction temperatures under identical load conditions compared to IRLU014N's 28W rating. IRLU024 offers 42W dissipation with superior current handling.

Q: Are RoHS compliance differences significant for component selection?

A: IRLU014N and IRLU024 are RoHS non-compliant; RFD3055LE and STD12NF06L-1 are ROHS3 compliant. For applications subject to environmental regulations or customer RoHS requirements, compliant substitutes are mandatory. For legacy systems without compliance requirements, non-compliant parts remain functionally equivalent.