FDMS86104 N-Channel MOSFET 100V 7A/16A Equivalent & Substitute Parts

Part Overview

The FDMS86104 is an N-Channel MOSFET manufactured by onsemi, rated for 100V drain-to-source voltage with continuous drain current of 7A at Ta and 16A at Tc. This device is part of the PowerTrench® series and is housed in an 8-PQFN (5x6) surface mount package. The part is Active in product status and RoHS3 compliant.

Equivalent and substitute parts are identified based on matching or exceeding the electrical performance parameters while maintaining compatibility with the same voltage class, package form factor, and thermal characteristics. Substitutes are selected when the main part is unavailable or when design requirements necessitate alternative sourcing from qualified manufacturers.

Substiute Parts

FDMS86104

onsemiIn Stock: 17836FDMS86104 Datasheet

Current PartRFQ

BSC196N10NSGATMA1

Infineon TechnologiesIn Stock: 54056BSC196N10NSGATMA1 Datasheet

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BSC252N10NSFGATMA1

Infineon TechnologiesIn Stock: 35433BSC252N10NSFGATMA1 Datasheet

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STL40N10F7

STMicroelectronicsIn Stock: 7129STL40N10F7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDMS86104 is determined by the following critical parameters:

Voltage Class: All substitute parts must maintain the 100V Vdss rating to ensure compatibility in the same circuit topology and voltage stress conditions.

Drain Current Rating: Substitute parts must meet or exceed the 7A continuous drain current specification at Ta (25°C ambient). Parts with higher current ratings (8.5A, 7.2A, or 40A) are acceptable as they provide equal or superior performance in the same application.

On-Resistance (Rds On): The maximum on-resistance specification of 24 mOhm at specified conditions is a key performance metric. Substitute parts with equal or lower on-resistance values maintain or improve power efficiency and thermal performance.

Gate Charge (Qg): Gate charge values between 16 nC and 34 nC are acceptable, as they fall within the range of typical N-Channel MOSFETs in this voltage and current class and do not significantly impact switching characteristics in standard applications.

Package Compatibility: The 8-PQFN (5x6) package footprint is the primary mechanical constraint. Substitute parts in equivalent 8-pin power packages (8-PowerTDFN, 8-PowerVDFN, PG-TDSON-8-1) are mechanically and electrically compatible with the same PCB layout.

Operating Temperature: All substitute parts operate across the -55°C to 150°C range, with one part extending to 175°C, ensuring thermal compatibility.

Compliance: All substitute parts are RoHS3 compliant, REACH unaffected, and carry MSL 1 rating, matching the regulatory and environmental requirements of the main part.

Parameter Comparison

Engineering Selection Recommendations

BSC252N10NSFGATMA1 (Infineon OptiMOS™): This part is a direct functional equivalent with 7.2A continuous drain current at Ta, exceeding the 7A requirement of the FDMS86104. The on-resistance of 25.2 mOhm is comparable to the main part. Gate charge of 17 nC is nearly identical to the FDMS86104 at 16 nC, ensuring similar switching performance. The part is Active in product status, RoHS3 compliant, and carries MSL 1 rating. Inventory availability is 35,400 units. This part is suitable for direct substitution in applications where the PG-TDSON-8-1 package footprint is compatible with the PCB design.

BSC196N10NSGATMA1 (Infineon OptiMOS™): This part provides superior continuous drain current performance at 8.5A (Ta) and 45A (Tc), with lower on-resistance of 19.6 mOhm at 45A, 10V. The higher gate charge of 34 nC and input capacitance of 2300 pF represent trade-offs for improved current handling. The part is Active in product status, RoHS3 compliant, and carries MSL 1 rating. Inventory availability is 53,999 units. This part is suitable for applications requiring higher current capacity or lower on-resistance losses.

STL40N10F7 (STMicroelectronics STripFET™ VII): This part delivers 40A continuous drain current at Tc with on-resistance of 24 mOhm at 10A, 10V, matching the FDMS86104 specification. Gate charge of 19 nC and input capacitance of 1270 pF are within acceptable ranges. The operating temperature range extends to 175°C, providing additional thermal margin. The part is Active in product status, RoHS3 compliant, and carries MSL 1 rating. Inventory availability is 7,025 units. This part is suitable for applications requiring extended temperature operation or higher current capacity.

All three substitute parts are Active in product status, ensuring long-term availability and support. All parts carry identical compliance certifications (RoHS3, REACH unaffected, MSL 1), confirming regulatory and environmental compatibility with the FDMS86104.

Frequently Asked Questions (FAQ)

Q: Can the BSC252N10NSFGATMA1 be used as a direct replacement for the FDMS86104?

A: Yes. The BSC252N10NSFGATMA1 meets all critical electrical parameters: 100V Vdss, 7.2A continuous drain current at Ta (exceeding the 7A requirement), comparable on-resistance of 25.2 mOhm, and nearly identical gate charge of 17 nC. The PG-TDSON-8-1 package is mechanically compatible with the 8-PQFN (5x6) footprint. Both parts are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between the BSC196N10NSGATMA1 and BSC252N10NSFGATMA1?

A: The BSC196N10NSGATMA1 provides higher continuous drain current (8.5A at Ta, 45A at Tc) and lower on-resistance (19.6 mOhm at 45A, 10V) compared to the BSC252N10NSFGATMA1 (7.2A at Ta, 40A at Tc, 25.2 mOhm at 20A, 10V). The BSC196N10NSGATMA1 has higher gate charge (34 nC) and input capacitance (2300 pF), which may increase switching losses in high-frequency applications. Both parts are suitable substitutes for the FDMS86104, with selection depending on application current requirements and switching frequency.

Q: Is the STL40N10F7 compatible with the same PCB layout as the FDMS86104?

A: The STL40N10F7 uses a PowerFlat™ (5x6) package, which is mechanically equivalent to the 8-PQFN (5x6) package of the FDMS86104. Both packages have the same footprint dimensions and pin configuration, making them compatible with the same PCB layout without modification.

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

A: All substitute parts maintain the 100V Vdss rating. The primary differences are continuous drain current ratings (7.2A to 8.5A at Ta, 40A to 45A at Tc), on-resistance values (19.6 to 25.2 mOhm), and gate charge (17 to 34 nC). The FDMS86104 has the lowest gate charge (16 nC) and input capacitance (923 pF), making it optimal for low-loss switching applications. The BSC196N10NSGATMA1 offers the lowest on-resistance (19.6 mOhm), making it optimal for high-current, low-loss applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts (BSC252N10NSFGATMA1, BSC196N10NSGATMA1, and STL40N10F7) are RoHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) rating, matching the compliance profile of the FDMS86104.

Q: Which substitute part has the widest operating temperature range?

A: The STL40N10F7 operates from -55°C to 175°C (TJ), extending 25°C above the FDMS86104 and other substitute parts, which operate from -55°C to 150°C (TJ). This makes the STL40N10F7 suitable for applications requiring extended high-temperature operation.

Q: Can I use the BSC196N10NSGATMA1 in a circuit designed for the FDMS86104?

A: Yes. The BSC196N10NSGATMA1 exceeds all minimum electrical requirements of the FDMS86104: 100V Vdss, 8.5A continuous drain current at Ta (versus 7A required), lower on-resistance (19.6 mOhm), and compatible package. The higher gate charge (34 nC versus 16 nC) may result in slightly increased switching losses in high-frequency applications, but the part is electrically and mechanically compatible.

Q: What is the inventory status of these substitute parts?

A: BSC252N10NSFGATMA1 has 35,400 units in stock, BSC196N10NSGATMA1 has 53,999 units in stock, and STL40N10F7 has 7,025 units in stock. All parts are available as new original stock.