STU5N95K5 Equivalent & Substitute Parts

Part Overview

The STU5N95K5 is an N-Channel MOSFET manufactured by STMicroelectronics, rated for 950V drain-to-source voltage with a continuous drain current of 3.5A at 25°C. The device is housed in a TO-251 (IPAK) through-hole package and is part of the MDmesh™ K5 series. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation.

Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are maintained within the same package type and voltage class, allowing direct circuit board replacement without design modification.

Substiute Parts

STU5N95K5

STMicroelectronicsIn Stock: 3143STU5N95K5 Datasheet

Current PartRFQ

STU6N95K5

STMicroelectronicsIn Stock: 1562STU6N95K5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STU5N95K5 is determined by the following critical parameters:

Voltage Class Compatibility: The substitute part must maintain the same 950V drain-to-source voltage rating to ensure circuit protection and reliability in high-voltage applications.

Package and Mounting Compatibility: The substitute must use the TO-251 (IPAK) through-hole package to ensure mechanical fit and thermal interface compatibility on existing printed circuit boards.

Gate Threshold Voltage: The substitute must maintain the same Vgs(th) specification at 100µA to ensure consistent gate drive requirements and switching behavior.

Operating Temperature Range: The substitute must support the full -55°C to 150°C operating temperature range to maintain performance across all specified environmental conditions.

Compliance and Certification: The substitute must maintain RoHS3 compliance and REACH unaffected status to satisfy regulatory and supply chain requirements.

The STU6N95K5 meets all substitution criteria while offering enhanced electrical performance characteristics within the same voltage and package class.

Parameter Comparison

Engineering Selection Recommendations

STU6N95K5 as Direct Substitute

The STU6N95K5 is a direct substitute for the STU5N95K5 based on electrical and mechanical compatibility. Both devices share identical voltage ratings (950V Vdss), gate threshold specifications (5V @ 100µA), operating temperature range (-55°C to 150°C), and package configuration (TO-251 IPAK through-hole). Both components maintain RoHS3 compliance and REACH unaffected status, satisfying regulatory requirements for new designs and replacement applications.

The STU6N95K5 provides enhanced performance characteristics including higher continuous drain current (9A versus 3.5A), lower on-state resistance (1.25Ohm @ 3A versus 2.5Ohm @ 1.5A), and increased power dissipation capability (90W versus 70W). These improvements enable the substitute to handle higher current loads and thermal stress while maintaining the same circuit interface requirements.

Both components are manufactured by STMicroelectronics and carry Active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the STU6N95K5 be used as a direct replacement for the STU5N95K5 on existing circuit boards?

A: Yes. Both devices use the TO-251 (IPAK) through-hole package with identical pin configuration and mechanical dimensions. No circuit board modifications are required for physical installation.

Q: What are the key electrical differences between these two parts?

A: The STU6N95K5 offers higher continuous drain current (9A versus 3.5A), lower on-state resistance (1.25Ohm versus 2.5Ohm), and greater power dissipation capability (90W versus 70W). The voltage rating, gate threshold voltage, and operating temperature range remain identical.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the STU5N95K5 and STU6N95K5 are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Does the higher current rating of the STU6N95K5 affect gate drive requirements?

A: No. Both parts maintain the same gate threshold voltage specification (5V @ 100µA) and maximum gate voltage (±30V), ensuring identical gate drive circuit compatibility.

Q: What is the moisture sensitivity classification for these components?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

Q: Are there any thermal management differences between these substitutes?

A: The STU6N95K5 has a higher maximum power dissipation rating (90W versus 70W) and lower on-state resistance, resulting in reduced heat generation at equivalent current levels. Both devices use the same TO-251 package thermal interface.