FDG6306P Equivalent & Substitute Parts

Part Overview

The FDG6306P is a dual P-channel MOSFET array manufactured by onsemi, designed for surface mount applications in the SC-88 (SOT-363) package. This device features logic level gate operation with a maximum drain-source voltage rating of 20V and continuous drain current capability of 600mA at 25°C. The FDG6306P is classified as obsolete product status, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Substiute Parts

FDG6306P

onsemiIn Stock: 55209FDG6306P Datasheet

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NTJD4152PT1G

onsemiIn Stock: 75814NTJD4152PT1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDG6306P is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Drain to Source Voltage (Vdss): 20V minimum
• Package / Case: 6-TSSOP, SC-88, SOT-363 (identical physical footprint)
• Configuration: 2 P-Channel (Dual) topology
• FET Feature: Logic Level Gate operation
• Operating Temperature Range: -55°C to 150°C (TJ)

Performance Parameters:

• Current - Continuous Drain (Id) @ 25°C: Equal to or greater than 600mA
• Rds On (Max): Equal to or less than 420mOhm @ 600mA, 4.5V
• Vgs(th) (Max) @ Id: Equal to or less than 1.5V @ 250µA
• Gate Charge (Qg) (Max) @ Vgs: Equal to or less than 2nC @ 4.5V
• Input Capacitance (Ciss) (Max) @ Vds: Equal to or less than 114pF @ 10V
• Power - Max: Equal to or greater than 300mW

The NTJD4152PT1G meets all critical matching parameters and exceeds performance specifications in continuous drain current, on-resistance, and gate charge characteristics.

Parameter Comparison

Engineering Selection Recommendations

The NTJD4152PT1G is a direct substitute for the FDG6306P based on the following engineering criteria:

Electrical Compatibility: The NTJD4152PT1G maintains identical voltage ratings (20V Vdss) and operating temperature range (-55°C to 150°C TJ). The substitute device exceeds the original part's continuous drain current specification (880mA versus 600mA), providing enhanced current handling capability. On-resistance is reduced (260mOhm versus 420mOhm), resulting in lower power dissipation and improved thermal performance.

Mechanical Compatibility: Both devices utilize the identical 6-TSSOP, SC-88, SOT-363 package footprint, enabling direct PCB layout compatibility without redesign.

Compliance and Status: The NTJD4152PT1G carries active product status, ensuring long-term availability and manufacturing support. Both devices maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity rating, satisfying current regulatory and supply chain requirements.

Performance Enhancement: The substitute part delivers superior electrical performance across multiple parameters, including lower on-resistance, lower threshold voltage, and improved current capacity, while maintaining backward compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the NTJD4152PT1G be used as a direct replacement for the FDG6306P in existing designs?

A: Yes. The NTJD4152PT1G is electrically and mechanically compatible with the FDG6306P. Both devices share identical package geometry (SC-88, SOT-363), voltage ratings (20V Vdss), and operating temperature range (-55°C to 150°C TJ). The substitute part meets or exceeds all electrical specifications of the original device.

Q: What are the key electrical differences between these two parts?

A: The NTJD4152PT1G provides higher continuous drain current (880mA versus 600mA), lower on-resistance (260mOhm versus 420mOhm), and lower threshold voltage (1.2V versus 1.5V). These improvements result in reduced power dissipation and enhanced switching performance while maintaining full backward compatibility.

Q: Are there any package or footprint differences?

A: No. Both the FDG6306P and NTJD4152PT1G use the identical 6-TSSOP, SC-88, SOT-363 package. No PCB layout modifications are required for substitution.

Q: Why is the FDG6306P listed as obsolete?

A: The FDG6306P has reached end-of-life status. The NTJD4152PT1G is the active equivalent offering superior performance characteristics and guaranteed long-term manufacturing availability.

Q: Do both parts meet current compliance standards?

A: Yes. Both the FDG6306P and NTJD4152PT1G are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Both devices meet current regulatory and environmental requirements.

Q: What is the gate charge difference, and does it affect circuit design?

A: The NTJD4152PT1G has a slightly higher gate charge (2.2nC versus 2nC @ 4.5V). This minimal difference (0.2nC) does not require circuit redesign and has negligible impact on gate drive requirements or switching speed in typical applications.

Q: Is the input capacitance difference significant?

A: The NTJD4152PT1G exhibits higher input capacitance (155pF @ 20V versus 114pF @ 10V). This difference reflects measurement at different voltage points and does not preclude direct substitution. Circuit performance remains compatible with existing gate drive designs.