FDJ1028N Equivalent & Substitute Parts

Part Overview

The FDJ1028N is a dual N-channel MOSFET manufactured by onsemi, featuring a 20V drain-to-source voltage rating and 3.2A continuous drain current capability. This component is packaged in the SC-75-6 FLMP surface mount configuration and is part of the PowerTrench® series. The FDJ1028N is classified as obsolete, making identification of functionally equivalent substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

FDJ1028N

onsemiIn Stock: 13936FDJ1028N Datasheet

Current PartRFQ

FDME1024NZT

onsemiIn Stock: 23222FDME1024NZT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDJ1028N is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Drain to Source Voltage (Vdss): Must equal or exceed 20V
• Continuous Drain Current (Id): Must equal or exceed 3.2A at 25°C
• Gate Threshold Voltage (Vgs(th)): Must support logic level gate operation
• Configuration: Must maintain dual N-channel topology
• Operating Temperature Range: Must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

• Mounting Type: Surface mount only
• Package Classification: Dual N-channel MOSFET in compact surface mount form factor

The FDME1024NZT meets these substitution criteria through equivalent voltage rating, superior current capability (3.8A), compatible gate characteristics, and identical operating temperature range. While the package form factor differs (6-MicroFET versus SC-75-6 FLMP), both are surface mount configurations suitable for equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The FDME1024NZT is the active substitute for the obsolete FDJ1028N. Selection of the FDME1024NZT is supported by the following factors:

Product Status: The FDME1024NZT maintains active product status with onsemi, ensuring ongoing availability and manufacturing support. The FDJ1028N is classified as obsolete, necessitating transition to an alternative component.

Electrical Performance: The FDME1024NZT provides superior continuous drain current capability (3.8A versus 3.2A) and lower on-state resistance (66 mOhm versus 90 mOhm), delivering improved performance margins in equivalent circuit applications. Both components maintain identical 20V voltage rating and compatible gate characteristics for logic level operation.

Compliance and Certifications: Both components carry identical REACH Unaffected status and Moisture Sensitivity Level 1 (Unlimited) classification. The FDME1024NZT additionally carries RoHS3 Compliance certification, meeting current regulatory requirements for new designs.

Thermal Characteristics: Both components operate across the identical temperature range (-55°C to 150°C), ensuring thermal compatibility in existing thermal management designs.

Package Consideration: The FDME1024NZT utilizes a 6-MicroFET (1.6x1.6) package, which is physically smaller than the SC-75-6 FLMP package of the FDJ1028N. PCB layout modification is required for package transition.

Frequently Asked Questions (FAQ)

Q: Can the FDME1024NZT directly replace the FDJ1028N without circuit modification?

A: Electrical substitution is valid based on equivalent voltage rating, superior current capability, and compatible gate characteristics. However, package geometry differs (6-MicroFET versus SC-75-6 FLMP), requiring PCB layout redesign. Pin configuration must be verified against device datasheets prior to implementation.

Q: What are the key electrical differences between these components?

A: The FDME1024NZT provides higher continuous drain current (3.8A versus 3.2A) and lower on-state resistance (66 mOhm versus 90 mOhm). Gate threshold voltage is lower (1.0V versus 1.5V), and gate charge is higher (4.2nC versus 3nC). These differences result in improved switching performance and reduced conduction losses in the substitute component.

Q: Why is the FDJ1028N classified as obsolete?

A: The FDJ1028N is designated obsolete by onsemi. The FDME1024NZT represents the active product line continuation with enhanced electrical performance and current manufacturing support.

Q: Are there compliance differences between these components?

A: Both components maintain REACH Unaffected status and MSL 1 (Unlimited) classification. The FDME1024NZT carries additional RoHS3 Compliance certification, meeting current environmental and regulatory standards for new product designs.

Q: What is the impact of the smaller package size?

A: The 6-MicroFET package (1.6x1.6) is physically smaller than the SC-75-6 FLMP package, enabling more compact PCB layouts. Thermal performance may differ due to package geometry; thermal management design review is necessary during transition.

Q: Are both components from the same manufacturer?

A: Yes, both the FDJ1028N and FDME1024NZT are manufactured by onsemi and are part of the PowerTrench® series, ensuring consistent design philosophy and manufacturing quality standards.