MT8386M5 MOSFET N-Channel 30V Equivalent & Substitute Parts

Part Overview

The MT8386M5 is an N-channel MOSFET rated for 30V drain-to-source voltage, manufactured by Alpha & Omega Semiconductor Inc. This component is classified as obsolete, indicating it is no longer in active production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this transistor topology.

Substiute Parts

MT8386M5

Alpha & Omega Semiconductor Inc.In Stock: 1205MT8386M5 Datasheet

Current PartRFQ

CSD17553Q5A

Texas InstrumentsIn Stock: 8347CSD17553Q5A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MT8386M5 is based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Drain-to-Source Voltage (Vdss): 30V minimum rating
• FET Type: N-Channel configuration
• Technology: MOSFET (Metal Oxide Semiconductor)
• Moisture Sensitivity Level: MSL 1 or equivalent
• REACH Compliance: REACH Unaffected or compliant status

The CSD17553Q5A from Texas Instruments satisfies all primary substitution criteria. This part maintains the 30V Vdss rating, N-channel topology, and MOSFET technology. Both components share MSL 1 classification and REACH Unaffected status, ensuring compatibility in moisture-sensitive and regulated supply chain environments.

Parameter Comparison

Engineering Selection Recommendations

CSD17553Q5A as Primary Substitute:

The CSD17553Q5A is the manufacturer-recommended substitute for the MT8386M5. This selection is supported by the following factors:

• Voltage Rating Compatibility: Both components maintain 30V Vdss rating, ensuring direct electrical compatibility in 30V-rated circuit topologies.
• Product Status: The CSD17553Q5A holds Active product status, guaranteeing long-term availability and continued manufacturing support, contrasting with the Obsolete status of the MT8386M5.
• Regulatory Compliance: Both parts maintain REACH Unaffected status and MSL 1 classification, satisfying environmental and moisture-handling requirements without additional qualification.
• Supply Chain Availability: The CSD17553Q5A maintains 8241 units in new original stock, providing immediate procurement capability.

Design engineers must verify package compatibility and pinout alignment with existing PCB layouts, as the MT8386M5 packaging specification is not provided in available documentation. The CSD17553Q5A utilizes 8-VSONP (5x6) surface-mount packaging, which may require PCB redesign if the original design employed a different package form factor.

Frequently Asked Questions (FAQ)

Q: Can the CSD17553Q5A directly replace the MT8386M5 without circuit modification?

A: Electrical substitution is valid based on matching 30V Vdss rating, N-channel topology, and MOSFET technology. However, package form factor compatibility must be confirmed. The CSD17553Q5A uses 8-VSONP (5x6) surface-mount packaging. If the original MT8386M5 design employed a different package type, PCB layout modifications are required.

Q: What is the significance of the Obsolete product status for the MT8386M5?

A: Obsolete status indicates the MT8386M5 is no longer manufactured by Alpha & Omega Semiconductor Inc. Existing inventory may become depleted, and long-term supply cannot be guaranteed. Transitioning to an active substitute part such as the CSD17553Q5A ensures sustained component availability for production and field support.

Q: Are there any compliance differences between the MT8386M5 and CSD17553Q5A?

A: Both components maintain identical REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity classification. The CSD17553Q5A additionally carries ROHS3 Compliant certification. No compliance barriers exist for substitution in regulated applications.

Q: What parameters determine whether a MOSFET can substitute for the MT8386M5?

A: Primary substitution parameters are Drain-to-Source Voltage (Vdss) rating of 30V or higher, N-channel FET type, MOSFET technology, and compatible moisture sensitivity and REACH compliance status. Additional electrical parameters such as continuous drain current, on-resistance, and gate charge must be evaluated for specific application requirements.

Q: Does the CSD17553Q5A provide superior performance compared to the MT8386M5?

A: The CSD17553Q5A is specified with continuous drain current ratings of 23.5A (Ta) and 100A (Tc), on-resistance of 3.1mOhm at 20A/10V, and gate charge of 21.5nC at 4.5V. These specifications indicate enhanced current-handling capability and switching performance. However, the MT8386M5 detailed electrical specifications are not provided in available documentation, preventing direct performance comparison.

Q: Is package compatibility the only consideration for physical substitution?

A: Package compatibility is the primary physical consideration. The CSD17553Q5A uses 8-VSONP (5x6) surface-mount packaging. Pinout alignment, thermal pad dimensions, and PCB footprint must match the original design. If the MT8386M5 employed a different package type, mechanical redesign of the PCB assembly is necessary.