FDS4885C Equivalent & Substitute Parts

Part Overview

The FDS4885C is an N and P-Channel MOSFET array manufactured by onsemi, designed for surface mount applications in 8-SOIC packaging. This device features a 40V drain-to-source voltage rating with continuous drain currents of 7.5A (N-channel) and 6A (P-channel), and a maximum power dissipation of 900mW. The FDS4885C is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity.

Substiute Parts

FDS4885C

onsemiIn Stock: 1635FDS4885C Datasheet

Current PartRFQ

DMC4015SSD-13

Diodes IncorporatedIn Stock: 1661DMC4015SSD-13 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDS4885C is based on strict electrical and mechanical parameter compatibility. The following criteria determine valid substitutes:

Electrical Compatibility Requirements:

• Drain to Source Voltage (Vdss) must equal or exceed 40V
• Continuous drain current ratings must meet or exceed 7.5A (N-channel) and 6A (P-channel)
• Configuration must be N and P-Channel dual MOSFET array
• Operating temperature range must encompass -55°C to 150°C
• Technology must be MOSFET (Metal Oxide)

Mechanical Compatibility Requirements:

• Package must be 8-SOIC with 0.154" (3.90mm) width
• Mounting type must be Surface Mount
• Pin configuration must be compatible with 8-pin SOIC footprint

The DMC4015SSD-13 from Diodes Incorporated meets all substitution criteria. This part maintains identical voltage and temperature specifications, provides equal or superior current ratings (8.6A N-channel, 6.2A P-channel), and is housed in the same 8-SOIC package format. The DMC4015SSD-13 is classified as active product status, ensuring ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

The DMC4015SSD-13 is the qualified substitute for the FDS4885C based on the following engineering criteria:

Product Status and Availability: The FDS4885C is classified as obsolete, whereas the DMC4015SSD-13 maintains active product status. This distinction ensures long-term component availability, ongoing manufacturer support, and continued compliance with evolving industry standards.

Compliance and Certifications: Both parts are REACH Unaffected and classified under ECCN EAR99. The DMC4015SSD-13 carries RoHS3 Compliance certification, providing additional environmental and regulatory assurance for new designs and production environments requiring RoHS compliance.

Electrical Performance: The DMC4015SSD-13 exceeds the electrical specifications of the FDS4885C across all critical parameters. The substitute part delivers higher continuous drain currents (8.6A N-channel vs. 7.5A, and 6.2A P-channel vs. 6A) and increased maximum power dissipation (1.2W vs. 900mW), providing design margin and thermal headroom for equivalent or demanding applications.

Package and Mechanical Compatibility: Both parts utilize identical 8-SOIC surface mount packaging with 0.154" (3.90mm) width, ensuring direct footprint compatibility without PCB redesign or layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the DMC4015SSD-13 be used as a direct replacement for the FDS4885C in existing designs?

A: Yes. The DMC4015SSD-13 is electrically and mechanically compatible with the FDS4885C. Both parts share identical voltage ratings (40V Vdss), operating temperature range (-55°C to 150°C), and 8-SOIC package format. The substitute part meets or exceeds all current and power specifications of the original device.

Q: What are the key differences between the FDS4885C and DMC4015SSD-13?

A: The primary differences are product status and performance enhancements. The FDS4885C is obsolete, while the DMC4015SSD-13 is active. The DMC4015SSD-13 provides higher continuous drain currents (8.6A N-channel, 6.2A P-channel vs. 7.5A and 6A), increased power dissipation capability (1.2W vs. 900mW), lower on-resistance at 3A (15mOhm vs. 22mOhm at 7.5A), and RoHS3 compliance. The substitute features logic level gate operation and higher input capacitance (1810pF vs. 900pF).

Q: Are there any thermal or power dissipation considerations when substituting these parts?

A: The DMC4015SSD-13 provides 33% greater maximum power dissipation (1.2W vs. 900mW) compared to the FDS4885C. This increased thermal capability allows for equivalent or improved thermal performance in applications operating at the original device's power limits. Existing thermal management solutions designed for the FDS4885C remain valid for the substitute part.

Q: Does the DMC4015SSD-13 require any circuit modifications for substitution?

A: No circuit modifications are required. Both parts are N and P-Channel MOSFET arrays with identical pin configurations in 8-SOIC packaging. The DMC4015SSD-13 features logic level gate operation (3V Vgs(th) vs. 5V), which may provide improved gate drive efficiency in applications using lower gate voltage levels, but this is a performance enhancement rather than a requirement.

Q: What is the significance of the "Logic Level Gate" feature on the DMC4015SSD-13?

A: Logic level gate operation indicates that the DMC4015SSD-13 achieves full on-state conduction at lower gate-source voltages (3V threshold vs. 5V for the FDS4885C). This feature reduces gate drive power requirements and improves compatibility with modern low-voltage logic circuits, though it does not affect basic substitution compatibility.

Q: Are both parts available in the same packaging options?

A: Both parts are supplied in 8-SOIC surface mount packaging with identical physical dimensions (0.154" width, 3.90mm). The DMC4015SSD-13 is available in Cut Tape (CT) and Digi-Reel® packaging formats, while the FDS4885C packaging format is not specified in the provided data. Both formats are standard for surface mount component distribution.