STFI15NM65N N-Channel 650V 12A MOSFET Equivalent & Substitute Parts

Part Overview

The STFI15NM65N is an N-Channel 650V 12A MOSFET manufactured by STMicroelectronics, part of the MDmesh™ II series. This device is a Through Hole TO-281 (I2PAKFP) package component rated for 30W power dissipation and continuous drain current of 12A at 25°C. The STFI15NM65N is classified as Obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical equivalence across critical parameters including drain-source voltage, continuous drain current, on-resistance characteristics, and thermal specifications to ensure direct replacement capability.

Substiute Parts

STFI15NM65N

STMicroelectronicsIn Stock: 2204STFI15NM65N Datasheet

Current PartRFQ

STF15NM65N

STMicroelectronicsIn Stock: 15479STF15NM65N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STFI15NM65N is determined by electrical parameter equivalence and package compatibility. The primary substitute identified is the STF15NM65N, which maintains identical electrical specifications across all critical parameters: 650V drain-source voltage rating, 12A continuous drain current, 380mOhm on-resistance at specified conditions, 4V gate threshold voltage, and 33.3nC gate charge. Both devices operate across the same temperature range (-55°C to 150°C) and share identical drive voltage and capacitance characteristics.

The key differentiator between the main part and its substitute is the package configuration. The STFI15NM65N uses TO-281 (I2PAKFP) packaging, while the STF15NM65N uses TO-220FP packaging. Both are Through Hole mounting types, but the physical footprint and pin layout differ. This distinction is critical for PCB design compatibility. The STF15NM65N is classified as Active product status, providing superior long-term availability compared to the Obsolete STFI15NM65N.

Substitution eligibility is based strictly on:

• Drain-Source Voltage (Vdss): 650V
• Continuous Drain Current (Id): 12A @ 25°C
• On-Resistance (Rds On): 380mOhm @ 6A, 10V
• Gate Threshold Voltage: 4V @ 250µA
• Gate Charge: 33.3nC @ 10V
• Power Dissipation: 30W
• Operating Temperature: -55°C to 150°C
• Technology: N-Channel MOSFET (Metal Oxide)
• Series: MDmesh™ II

Parameter Comparison

Engineering Selection Recommendations

The STF15NM65N is the direct electrical equivalent to the STFI15NM65N with complete parameter alignment across all electrical specifications. Selection of STF15NM65N is supported by the following factors:

Product Status: The STF15NM65N maintains Active product status, ensuring long-term availability and manufacturing continuity. The STFI15NM65N is classified as Obsolete, creating supply chain risk for new designs and ongoing production.

Regulatory Compliance: Both devices maintain identical compliance certifications. The STF15NM65N is ROHS3 Compliant, REACH Unaffected, and carries MSL 1 (Unlimited) rating, matching the STFI15NM65N specifications. Both devices are classified under ECCN EAR99 and HTSUS 8541.29.0095.

Package Consideration: The primary design consideration is package footprint. The STFI15NM65N uses TO-281 (I2PAKFP) packaging, while STF15NM65N uses TO-220FP packaging. PCB layout modifications are required to accommodate the different package geometry. Both packages are Through Hole mounting types with compatible thermal and electrical performance characteristics.

Electrical Equivalence: All electrical parameters are identical, including voltage ratings, current ratings, on-resistance, gate charge, and thermal specifications. Direct functional substitution is supported without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can STF15NM65N directly replace STFI15NM65N without circuit modification?

A: Electrical substitution is direct. The STF15NM65N maintains identical electrical specifications across all parameters. However, PCB layout modification is required due to package differences. STFI15NM65N uses TO-281 (I2PAKFP) packaging while STF15NM65N uses TO-220FP packaging. Pin configurations and physical footprints differ between these package types.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by equivalence across: Drain-Source Voltage (650V), Continuous Drain Current (12A @ 25°C), On-Resistance (380mOhm @ 6A, 10V), Gate Threshold Voltage (4V @ 250µA), Gate Charge (33.3nC @ 10V), Power Dissipation (30W), and Operating Temperature Range (-55°C to 150°C). The STF15NM65N matches all these parameters.

Q: Why is product status relevant to substitution?

A: The STFI15NM65N is Obsolete, indicating discontinued manufacturing and limited inventory availability. The STF15NM65N is Active, ensuring ongoing production and supply chain reliability. For new designs and long-term production, Active status provides superior availability and cost stability.

Q: Are there thermal or mounting differences between the packages?

A: Both STFI15NM65N (TO-281 I2PAKFP) and STF15NM65N (TO-220FP) are Through Hole mounting types with identical power dissipation ratings (30W). Thermal performance is equivalent. Physical mounting footprints differ, requiring PCB redesign for package conversion.

Q: Do compliance certifications differ between the parts?

A: No. Both devices are ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) rating. Regulatory compliance is identical, supporting direct substitution from a compliance perspective.

Q: What inventory status should be considered for procurement?

A: STFI15NM65N has 2100 pieces in stock (Obsolete status). STF15NM65N has 15436 pieces in stock (Active status). For ongoing production requirements, STF15NM65N provides superior availability and procurement reliability.