FDS4895C Equivalent & Substitute Parts

Part Overview

The FDS4895C is an obsolete N and P-Channel MOSFET array manufactured by onsemi, designed for surface mount applications in the 8-SOIC package. This dual-channel configuration operates at 40V drain-to-source voltage with continuous drain currents of 5.5A (N-channel) and 4.4A (P-channel). The part is rated for 900mW maximum power dissipation and operates across a temperature range of -55°C to 150°C.

Due to its obsolete product status, the FDS4895C is no longer in active production. Equivalent substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

FDS4895C

onsemiIn Stock: 3287FDS4895C Datasheet

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AO4614B

Alpha & Omega Semiconductor Inc.In Stock: 150141AO4614B Datasheet

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DMC4050SSD-13

Diodes IncorporatedIn Stock: 15400DMC4050SSD-13 Datasheet

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TPC8408,LQ(S

Toshiba Semiconductor and StorageIn Stock: 6097TPC8408,LQ(S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDS4895C is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Drain to Source Voltage (Vdss): Must equal or exceed 40V
• Configuration: Must maintain N and P-Channel dual configuration
• Current Rating: Continuous drain current must meet or exceed 5.5A (N-channel) and 4.4A (P-channel)
• Operating Temperature Range: Must support -55°C to 150°C operation
• Package Type: Must be 8-SOIC form factor to ensure PCB compatibility

Mechanical Compatibility Requirements:

• Mounting Type: Surface Mount
• Package Dimensions: 8-SOIC (0.154", 3.90mm Width)

The three substitute parts listed below satisfy all electrical and mechanical compatibility criteria with the FDS4895C and are available in active production status.

Parameter Comparison

Engineering Selection Recommendations

AO4614B (Alpha & Omega Semiconductor Inc.)

The AO4614B is an active production substitute with electrical specifications that exceed the FDS4895C requirements. It provides higher continuous drain current (6A N-channel, 5A P-channel), improved on-resistance (30mOhm), and increased power dissipation capability (2W). The part maintains identical 40V Vdss rating and 8-SOIC package form factor. RoHS3 compliance and active product status ensure long-term availability and supply chain stability.

DMC4050SSD-13 (Diodes Incorporated)

The DMC4050SSD-13 is an active production substitute with 40V Vdss and 5.3A continuous drain current, meeting the FDS4895C current requirements. It features 1.8W power dissipation and maintains the 8-SOIC package specification. RoHS3 compliance and active status support sustained component availability. On-resistance of 45mOhm is higher than the FDS4895C; thermal design verification is necessary for applications with high duty cycle operation.

TPC8408,LQ(S (Toshiba Semiconductor and Storage)

The TPC8408,LQ(S is an active production substitute with the highest continuous drain current ratings (6.1A N-channel, 5.3A P-channel) and improved on-resistance (32mOhm). It maintains 40V Vdss and 8-SOIC package compatibility. RoHS compliance and active product status ensure availability. Maximum power dissipation is rated at 450mW, which is lower than the FDS4895C; thermal design review is required for high-power applications.

Frequently Asked Questions (FAQ)

Q: Can the AO4614B directly replace the FDS4895C without PCB modifications?

A: Yes. The AO4614B maintains identical 8-SOIC package dimensions (0.154", 3.90mm width) and pinout compatibility. No PCB layout changes are required for direct substitution.

Q: What is the primary difference between the three substitute options?

A: All three substitutes meet the 40V Vdss and 8-SOIC package requirements. The AO4614B offers the highest power dissipation (2W) and lowest on-resistance (30mOhm). The DMC4050SSD-13 provides moderate power handling (1.8W). The TPC8408,LQ(S delivers the highest current ratings but has the lowest power rating (450mW). Selection depends on thermal and current delivery requirements of the specific application.

Q: Are all substitute parts RoHS compliant?

A: The AO4614B and DMC4050SSD-13 are RoHS3 compliant. The TPC8408,LQ(S is RoHS compliant. All three parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across -55°C to 150°C junction temperature, matching the FDS4895C specification.

Q: Does package type differ between the FDS4895C and substitutes?

A: The FDS4895C uses 8-SOIC packaging. The AO4614B and TPC8408,LQ(S also use 8-SOIC. The DMC4050SSD-13 uses 8-SO packaging, which is mechanically and electrically compatible with 8-SOIC for this application class.

Q: Which substitute has the lowest on-resistance?

A: The AO4614B has the lowest on-resistance at 30mOhm @ 6A, 10V, providing superior switching efficiency compared to the FDS4895C (39mOhm @ 5.5A, 10V).

Q: Are there inventory considerations for these substitutes?

A: The AO4614B has the highest inventory availability (150,100 pcs), followed by DMC4050SSD-13 (15,365 pcs) and TPC8408,LQ(S (5,990 pcs). All three are in active production with established supply chains.