FDS4141 Equivalent & Substitute Parts

Part Overview

The FDS4141 is an active P-Channel MOSFET manufactured by onsemi, rated for 40V drain-to-source voltage with 10.8A continuous drain current. The device is housed in an 8-SOIC surface mount package and is part of the PowerTrench® series. This component is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and is currently in active production status with 129,383 pieces in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications. Substitution becomes necessary due to component availability, supply chain considerations, or design optimization within the specified parameter envelope.

Substiute Parts

FDS4141

onsemiIn Stock: 129416FDS4141 Datasheet

Current PartRFQ

FDS4675

onsemiIn Stock: 16610FDS4675 Datasheet

DirectRFQ

AO4485

UMWIn Stock: 90167AO4485 Datasheet

SimilarRFQ

DMP4015SSS-13

Diodes IncorporatedIn Stock: 1370DMP4015SSS-13 Datasheet

SimilarRFQ

DMP4015SSSQ-13

Diodes IncorporatedIn Stock: 15465DMP4015SSSQ-13 Datasheet

SimilarRFQ

TSM150P04LCS RLG

Taiwan Semiconductor CorporationIn Stock: 18629TSM150P04LCS RLG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FDS4141 are classified based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following requirements:

Primary Substitution Criteria:

• FET Type: P-Channel
• Technology: MOSFET (Metal Oxide)
• Drain to Source Voltage (Vdss): 40 V (minimum requirement)
• Continuous Drain Current (Id): Equal to or greater than 10.8A
• Package Type: 8-SOIC or 8-SOP surface mount configuration
• Operating Temperature Range: Minimum -55°C to 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitution Categories:

Direct Substitutes (Electrical and Mechanical Equivalence): Parts meeting all primary criteria with minimal parameter variance are classified as direct substitutes. These include FDS4675 and TSM150P04LCS RLG, which maintain the same voltage rating, package footprint, and temperature range while offering equal or superior current ratings.

Compatible Substitutes (Functional Equivalence with Parameter Variance): Parts meeting primary criteria but with measurable differences in secondary parameters (gate charge, input capacitance, power dissipation) are classified as compatible substitutes. These include DMP4015SSS-13, DMP4015SSSQ-13, and AO4485, which operate within the same voltage and temperature envelope but with lower current ratings or different gate characteristics.

Parameter Comparison

Engineering Selection Recommendations

FDS4675 (onsemi): FDS4675 is a direct substitute within the onsemi PowerTrench® series. It maintains identical voltage rating (40V), equivalent on-resistance (13mOhm), and superior current rating (11A versus 10.8A). Operating temperature extends to 175°C, providing enhanced thermal margin. Package footprint is identical (8-SOIC). All compliance certifications match the FDS4141. This part is recommended for applications requiring extended temperature operation or where onsemi series consistency is required.

TSM150P04LCS RLG (Taiwan Semiconductor Corporation): TSM150P04LCS RLG provides the highest current capacity (22A) among substitute options, with proportionally higher power dissipation rating (12.5W). Voltage rating and package footprint remain equivalent. This part is suitable for applications requiring higher current handling or lower on-resistance per unit current. All compliance certifications are equivalent to the FDS4141.

DMP4015SSS-13 and DMP4015SSSQ-13 (Diodes Incorporated): Both DMP4015 variants are functionally equivalent with lower continuous current ratings (9.1A). On-resistance is superior (11mOhm), and gate charge is lower (47.5nC). These parts are suitable for applications where current requirements are below 10.8A and where lower gate charge is beneficial for switching speed optimization. DMP4015SSSQ-13 offers higher inventory availability (15,365 pieces).

AO4485 (UMW): AO4485 provides 10A continuous current with 15mOhm on-resistance and lower gate threshold voltage (2.5V). Power dissipation is lowest among substitutes (1.7W). This part is suitable for low-power applications or where reduced gate drive requirements are advantageous. Package designation is 8-SOP with identical footprint dimensions.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and active production status.

Frequently Asked Questions (FAQ)

Q: Can FDS4675 be used as a direct replacement for FDS4141 in all applications?

A: FDS4675 meets all primary electrical and mechanical substitution criteria. Both devices share identical voltage rating (40V), equivalent on-resistance (13mOhm @ 10V), same package footprint (8-SOIC), and identical compliance certifications. FDS4675 provides higher current capacity (11A versus 10.8A) and extended operating temperature range (-55°C to 175°C). Direct substitution is valid for applications within the FDS4141 current and power dissipation envelope.

Q: What is the difference between 8-SOIC and 8-SOP packages?

A: Both 8-SOIC and 8-SOP are surface mount packages with identical 0.154" (3.90mm) width and pin configuration. The designations reflect different manufacturing standards but maintain mechanical and electrical compatibility for PCB footprint purposes. Parts specified as 8-SOP (AO4485, TSM150P04LCS RLG) are functionally interchangeable with 8-SOIC packages in standard applications.

Q: Which substitute part has the lowest on-resistance?

A: DMP4015SSS-13 and DMP4015SSSQ-13 both specify 11mOhm on-resistance at 9.8A and 10V, which is lower than the FDS4141 specification of 13mOhm at 10.5A and 10V. However, these parts are rated for 9.1A continuous current, limiting their application to lower current designs.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed (FDS4675, AO4485, DMP4015SSS-13, DMP4015SSSQ-13, TSM150P04LCS RLG) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the FDS4141 compliance profile.

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

A: Gate charge values vary among substitutes (47.5nC to 56nC) and are measured at different gate voltages. Lower gate charge reduces switching losses and gate drive power requirements. DMP4015 variants specify 47.5nC at 5V, while FDS4141 specifies 49nC at 10V. Gate charge differences affect switching frequency performance but do not prevent functional substitution in DC or low-frequency switching applications.

Q: Which substitute part offers the highest power dissipation capability?

A: TSM150P04LCS RLG specifies 12.5W maximum power dissipation (at Tc), compared to FDS4141 at 5W (at Ta). This higher rating reflects the device's 22A current capacity and is suitable for high-current applications requiring thermal margin.

Q: Can DMP4015 parts substitute for FDS4141 in high-current applications?

A: DMP4015SSS-13 and DMP4015SSSQ-13 are rated for 9.1A continuous current, which is below the FDS4141 specification of 10.8A. These parts are suitable only for applications where actual current demand does not exceed 9.1A. For applications requiring the full 10.8A capacity, FDS4675 or TSM150P04LCS RLG are appropriate substitutes.

Q: What is the operating temperature advantage of FDS4675?

A: FDS4675 specifies operating temperature range of -55°C to 175°C (TJ), compared to FDS4141 at -55°C to 150°C (TJ). The 25°C extended upper temperature limit provides additional thermal margin in high-temperature environments. All other substitute parts maintain the -55°C to 150°C range matching FDS4141.