STN3P6F6 MOSFET P-Channel 60V 3A Equivalent & Substitute Parts

Part Overview

The STN3P6F6 is an active P-Channel MOSFET manufactured by STMicroelectronics, rated for 60V drain-to-source voltage with 3A continuous drain current in a surface mount SOT-223 package. This component is part of the DeepGATE™ and STripFET™ VI series and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility. The substitute parts listed maintain functional equivalence through identical or superior ratings in critical parameters including drain-to-source voltage, continuous drain current, gate-source voltage limits, and surface mount SOT-223 packaging.

Substiute Parts

STN3P6F6

STMicroelectronicsIn Stock: 35733STN3P6F6 Datasheet

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DMP6185SE-13

Diodes IncorporatedIn Stock: 3811DMP6185SE-13 Datasheet

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DMP6185SEQ-13

Diodes IncorporatedIn Stock: 4538DMP6185SEQ-13 Datasheet

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NVF2955T1G

onsemiIn Stock: 57462NVF2955T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the STN3P6F6 are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

• Drain-to-Source Voltage (Vdss): 60V minimum
• Continuous Drain Current (Id): 3A or greater at 25°C
• Gate-Source Voltage (Vgs) Rating: ±20V
• FET Type: P-Channel
• Technology: MOSFET (Metal Oxide)

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• Package: SOT-223 (TO-261-4, TO-261AA)

Compliance Criteria:

• RoHS3 Compliant
• MSL Rating: 1 (Unlimited)

All substitute parts listed meet or exceed these criteria, ensuring functional and mechanical compatibility with the STN3P6F6 in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

STN3P6F6 (STMicroelectronics) Primary selection for applications requiring the specified electrical and thermal characteristics. Active product status with full availability. Suitable for general industrial and consumer applications.

DMP6185SE-13 (Diodes Incorporated) Automotive-grade substitute qualified to AEC-Q101. Suitable for automotive and industrial applications requiring automotive qualification. Operating temperature range limited to -55°C ~ 150°C. Lower on-resistance (150 mOhm vs. 160 mOhm) provides improved thermal performance.

DMP6185SEQ-13 (Diodes Incorporated) Automotive-grade substitute qualified to AEC-Q101 with higher power dissipation rating (2.2W vs. 1.2W for DMP6185SE-13). Suitable for automotive and industrial applications requiring automotive qualification. Operating temperature range limited to -55°C ~ 150°C. Identical electrical specifications to DMP6185SE-13.

NVF2955T1G (onsemi) Automotive-grade substitute qualified to AEC-Q101. Suitable for automotive and industrial applications requiring automotive qualification. Operating temperature range extends to 175°C, matching the STN3P6F6. Continuous drain current rated at 2.6A, slightly lower than the main part. Tape & Reel packaging format.

All substitute parts maintain ROHS3 compliance and MSL 1 rating. Selection between substitutes depends on application requirements for automotive qualification, operating temperature range, and packaging format.

Frequently Asked Questions (FAQ)

Q: Can DMP6185SE-13 or DMP6185SEQ-13 directly replace STN3P6F6 in all applications?

A: Both Diodes Incorporated parts meet the core electrical specifications (60V Vdss, 3A Id, ±20V Vgs) and share identical SOT-223 packaging. However, the operating temperature range is limited to -55°C ~ 150°C compared to -55°C ~ 175°C for the STN3P6F6. Applications operating above 150°C require the STN3P6F6 or NVF2955T1G.

Q: What is the difference between DMP6185SE-13 and DMP6185SEQ-13?

A: Both parts are identical in electrical specifications and automotive qualification (AEC-Q101). The primary difference is power dissipation rating: DMP6185SE-13 is rated at 1.2W while DMP6185SEQ-13 is rated at 2.2W. Selection depends on thermal requirements of the application.

Q: Is NVF2955T1G suitable for high-temperature applications?

A: Yes. NVF2955T1G maintains the full operating temperature range of -55°C ~ 175°C, matching the STN3P6F6. It is qualified to AEC-Q101 for automotive applications. Continuous drain current is rated at 2.6A, which is slightly lower than the 3A rating of the main part.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use SOT-223 surface mount packaging (TO-261-4, TO-261AA). However, packaging format differs: STN3P6F6 and DMP6185SE-13/SEQ-13 are available in Cut Tape (CT) & Digi-Reel®, while NVF2955T1G is supplied in Tape & Reel (TR) format.

Q: Do all parts meet RoHS and MSL requirements?

A: Yes. All listed parts are ROHS3 compliant with MSL 1 (Unlimited) rating, ensuring compatibility with standard manufacturing processes and storage conditions.

Q: What are the key electrical differences between substitute parts?

A: Gate charge (Qg) is lower in the STN3P6F6 (6.4 nC) compared to all substitutes (14 nC or higher), resulting in faster switching characteristics. Input capacitance (Ciss) varies across parts, affecting gate drive requirements. On-resistance (Rds On) is comparable across all parts, ranging from 150 mOhm to 170 mOhm at specified conditions.

Q: Which substitute part offers the best thermal performance?

A: DMP6185SEQ-13 offers the highest power dissipation rating at 2.2W (Ta), followed by NVF2955T1G at 1W (Ta) and DMP6185SE-13 at 1.2W (Ta). Selection depends on application thermal requirements and ambient temperature conditions.