FDMA3028N Equivalent & Substitute Parts

Part Overview

The FDMA3028N is a dual N-channel MOSFET array manufactured by onsemi, designed for surface mount applications in the 6-MicroFET (2x2) package. This device features a 30V drain-to-source voltage rating, 3.8A continuous drain current capability, and 700mW maximum power dissipation. The FDMA3028N operates across an extended temperature range of -55°C to 150°C and is compliant with RoHS3 and REACH standards.

The FDMA3028N is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

FDMA3028N

onsemiIn Stock: 9362FDMA3028N Datasheet

Current PartRFQ

PMDPB56XNEAX

Nexperia USA Inc.In Stock: 47024PMDPB56XNEAX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDMA3028N is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Drain to Source Voltage (Vdss) must equal or exceed 30V
• Continuous Drain Current (Id) must meet or exceed 3.8A at 25°C
• On-state resistance (Rds On) must not exceed the specified maximum at rated current and gate voltage
• Gate threshold voltage (Vgs(th)) must fall within acceptable operating margins
• Gate charge (Qg) and input capacitance (Ciss) must be compatible with circuit switching requirements
• Maximum power dissipation (700mW) must be supported

Mechanical Compatibility Criteria:

• Configuration must be 2 N-Channel (Dual)
• Mounting type must be Surface Mount
• Package footprint must be compatible with 6-pin DFN or equivalent form factor
• Exposed pad design must be present for thermal management

The PMDPB56XNEAX meets these substitution criteria with equivalent voltage rating, comparable current handling, and compatible package geometry, while maintaining surface mount compatibility and thermal performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The PMDPB56XNEAX from Nexperia USA Inc. is an active production substitute for the obsolete FDMA3028N. Both devices maintain equivalent voltage ratings, operating temperature ranges, and RoHS3/REACH compliance status.

The PMDPB56XNEAX carries AEC-Q100 automotive qualification, indicating compliance with automotive-grade reliability standards. This qualification provides additional assurance for applications requiring automotive-level component validation.

Key electrical differences exist in current rating and power dissipation. The PMDPB56XNEAX is rated for 3.1A continuous drain current compared to the FDMA3028N's 3.8A, and maximum power dissipation is 485mW versus 700mW. These differences require circuit-level thermal analysis to confirm suitability for the intended application. The substitute device exhibits lower input capacitance (256pF versus 375pF) and lower gate threshold voltage (1.25V versus 1.5V), which may affect switching characteristics in gate-drive-sensitive applications.

Both devices employ compatible 6-pin DFN surface mount packages with exposed pads, supporting equivalent PCB layout and assembly processes. The PMDPB56XNEAX is available in Tape & Reel packaging format with significantly higher inventory availability (46,931 pieces in stock versus 9,286 pieces for the FDMA3028N).

Frequently Asked Questions (FAQ)

Q: Can the PMDPB56XNEAX directly replace the FDMA3028N in all applications?

A: Direct replacement requires verification of application current and thermal requirements. The PMDPB56XNEAX is rated for 3.1A continuous drain current versus the FDMA3028N's 3.8A. Applications operating at or near the 3.8A specification require thermal analysis to confirm the substitute's 485mW power rating is adequate. Lower input capacitance and gate threshold voltage may also affect switching performance in gate-drive-sensitive circuits.

Q: Are the package footprints identical between FDMA3028N and PMDPB56XNEAX?

A: Both devices use 6-pin DFN surface mount packages with exposed pads. The FDMA3028N employs a 6-VDFN package while the PMDPB56XNEAX uses a 6-UDFN package. These are compatible DFN form factors with equivalent pin configurations and thermal pad designs, supporting the same PCB layout and assembly processes.

Q: What compliance certifications does the PMDPB56XNEAX carry?

A: The PMDPB56XNEAX is RoHS3 compliant, REACH unaffected, and carries AEC-Q100 automotive qualification. Both the FDMA3028N and PMDPB56XNEAX maintain equivalent RoHS3 and REACH status. The AEC-Q100 qualification on the substitute provides automotive-grade reliability validation.

Q: How do the electrical characteristics compare between these devices?

A: Both devices share a 30V drain-to-source voltage rating and -55°C to 150°C operating temperature range. The PMDPB56XNEAX exhibits slightly higher on-state resistance (72mOhm versus 68mOhm at rated conditions), lower gate threshold voltage (1.25V versus 1.5V), and significantly lower input capacitance (256pF versus 375pF). These differences may impact switching speed and gate-drive requirements.

Q: What is the product status difference between these parts?

A: The FDMA3028N is classified as obsolete, while the PMDPB56XNEAX is in active production. Active production status ensures ongoing availability and supply chain continuity for the substitute device.

Q: Are there packaging format differences?

A: The FDMA3028N is supplied in standard packaging, while the PMDPB56XNEAX is available in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume surface mount assembly operations and supports automated pick-and-place equipment.