STW75N20 N-Channel MOSFET 200V 75A Equivalent & Substitute Parts

Part Overview

The STW75N20 is an N-Channel MOSFET manufactured by STMicroelectronics in the STripFET™ series, rated for 200V drain-to-source voltage and 75A continuous drain current in a TO-247-3 through-hole package. This device 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 component specification.

Substiute Parts

STW75N20

STMicroelectronicsIn Stock: 2002STW75N20 Datasheet

Current PartRFQ

STW75NF20

STMicroelectronicsIn Stock: 1453STW75NF20 Datasheet

DirectRFQ

STP75NF20

STMicroelectronicsIn Stock: 1751STP75NF20 Datasheet

SimilarRFQ

APT20M34BLLG

Microchip TechnologyIn Stock: 1165APT20M34BLLG Datasheet

SimilarRFQ

IRFP260PBF

Vishay SiliconixIn Stock: 1532IRFP260PBF Datasheet

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IXFH74N20P

IXYSIn Stock: 32753IXFH74N20P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STW75N20 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): 200V minimum
• Continuous Drain Current (Id): 75A or greater at 25°C
• On-State Resistance (Rds On): 34mOhm or lower at specified conditions
• Gate Threshold Voltage (Vgs(th)): 4V or lower
• Package Type: TO-247-3 through-hole configuration
• Technology: N-Channel MOSFET (Metal Oxide)
• Compliance: ROHS3 Compliant, REACH Unaffected

Direct Equivalent: STW75NF20 (STMicroelectronics) maintains identical electrical specifications and active product status, differing only in packaging format (Tube).

Similar Substitutes: Parts meeting the primary criteria but with variations in secondary parameters such as gate charge, input capacitance, power dissipation, or operating temperature range are classified as similar substitutes. These include STP75NF20 (TO-220 package variant), APT20M34BLLG (Microchip, 74A rating), IXFH74N20P (IXYS, enhanced power dissipation), and IRFP260PBF (Vishay, 46A rating with different Rds On characteristics).

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Preferred): STW75NF20 is the recommended direct substitute for STW75N20. Both devices are manufactured by STMicroelectronics, share identical electrical specifications, and maintain ROHS3 compliance and REACH unaffected status. The primary distinction is packaging format (Tube versus original specification). STW75NF20 carries active product status, ensuring long-term supply availability and manufacturing support.

Package-Variant Substitute: STP75NF20 provides electrical equivalence with identical Vdss, Id, Rds On, and gate characteristics. This part differs in package configuration (TO-220-3 versus TO-247-3), requiring PCB layout modification. STP75NF20 maintains active product status and full compliance certifications. Selection of this variant is appropriate when TO-220 package compatibility exists in the application design.

Cross-Manufacturer Substitutes: IXFH74N20P (IXYS) and APT20M34BLLG (Microchip Technology) meet primary electrical criteria with minor current rating variations (74A versus 75A). Both maintain TO-247-3 package compatibility and active product status. IXFH74N20P provides enhanced power dissipation capability (480W versus 190W) and extended operating temperature range (-55 to 175°C), suitable for thermally demanding applications. APT20M34BLLG offers reduced gate charge (60nC versus 84nC), beneficial for high-frequency switching applications.

Limited-Current Substitute: IRFP260PBF (Vishay Siliconix) is suitable only for applications where continuous drain current requirements do not exceed 46A. This device exhibits higher on-state resistance (55mOhm versus 34mOhm) and significantly higher gate charge (230nC versus 84nC), resulting in increased power dissipation and switching losses. Selection is restricted to current-limited circuit topologies.

Compliance and Supply Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory equivalence. STW75NF20 and STP75NF20 provide the highest supply assurance through STMicroelectronics manufacturing continuity. Cross-manufacturer options (IXYS, Microchip, Vishay) offer alternative supply channels and extended product lifecycle support.

Frequently Asked Questions (FAQ)

Q: Can STW75NF20 be used as a direct replacement for STW75N20 without circuit modification?

A: Yes. STW75NF20 is electrically and functionally identical to STW75N20, with matching Vdss (200V), Id (75A), Rds On (34mOhm), and gate characteristics. Both devices use TO-247-3 through-hole packaging. The only difference is packaging format (Tube). No circuit modification is required.

Q: What is the primary difference between STW75N20 and STP75NF20?

A: The primary difference is package type. STW75N20 and STW75NF20 use TO-247-3 packaging, while STP75NF20 uses TO-220-3 packaging. Electrical specifications are identical. STP75NF20 requires PCB layout redesign to accommodate the different pin configuration and thermal characteristics of the TO-220 package.

Q: Why does IRFP260PBF have a lower continuous drain current rating (46A) compared to STW75N20 (75A)?

A: IRFP260PBF is rated for 46A continuous drain current at 25°C, which is significantly lower than the STW75N20 specification of 75A. This device is not suitable for applications requiring the full 75A current capacity. IRFP260PBF is appropriate only for circuits where maximum continuous current does not exceed 46A.

Q: Is IXFH74N20P suitable for high-temperature applications?

A: IXFH74N20P supports an extended operating temperature range of -55 to 175°C, compared to STW75N20 at -50 to 150°C. This extended range makes IXFH74N20P suitable for applications requiring operation at temperatures above 150°C. The device also provides higher power dissipation capability (480W versus 190W).

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

A: Gate charge affects switching speed and driver circuit requirements. STW75N20 and STW75NF20 specify 84nC gate charge. APT20M34BLLG has lower gate charge (60nC), enabling faster switching and reduced driver power consumption. IXFH74N20P (107nC) and IRFP260PBF (230nC) require higher driver current and exhibit slower switching characteristics. Selection depends on circuit switching frequency and driver capability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (STW75NF20, STP75NF20, APT20M34BLLG, IXFH74N20P, and IRFP260PBF) are ROHS3 compliant and REACH unaffected, ensuring regulatory equivalence with the original STW75N20 specification.

Q: Can APT20M34BLLG be used in applications designed for 75A continuous current?

A: APT20M34BLLG is rated for 74A continuous drain current, which is marginally lower than the STW75N20 specification of 75A. For applications requiring sustained operation at or near 75A, this device operates at the upper limit of its rating. Thermal management and circuit margin analysis are necessary to confirm suitability.

Q: What packaging considerations apply when selecting a substitute part?

A: STW75N20, STW75NF20, APT20M34BLLG, and IXFH74N20P all use TO-247-3 through-hole packaging with identical pin configuration, allowing direct PCB compatibility. STP75NF20 uses TO-220-3 packaging with different pin spacing and thermal characteristics, requiring PCB layout modification. Package selection depends on existing PCB design and thermal management requirements.