DMN5L06DW-7 Equivalent & Substitute Parts

Part Overview

The DMN5L06DW-7 is a dual N-channel MOSFET array manufactured by Diodes Incorporated, designed for surface mount applications in SOT-363 packaging. This device features a 50V drain-to-source voltage rating with 280mA continuous drain current capability and logic level gate operation. The part is classified as obsolete, necessitating identification of active alternative components that maintain functional compatibility within system designs. Substitute parts must satisfy the electrical and mechanical constraints of the original application while offering continued availability and manufacturing support.

Substiute Parts

DMN5L06DW-7

Diodes IncorporatedIn Stock: 1205DMN5L06DW-7 Datasheet

Current PartRFQ

FDG6301N

onsemiIn Stock: 95288FDG6301N Datasheet

MFR RecommendedRFQ

SI1902DL-T1-E3

Vishay SiliconixIn Stock: 25494SI1902DL-T1-E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMN5L06DW-7 is determined by the following critical electrical and mechanical parameters:

Configuration Requirement: Dual N-channel MOSFET array in a single package.

Voltage Rating Compatibility: The original part specifies 50V Vdss. Substitute parts with lower voltage ratings (25V, 20V) are electrically compatible in applications where the actual operating voltage does not exceed the substitute's rating. The substitute must not be used in circuits requiring the full 50V capability.

Current Handling: The DMN5L06DW-7 provides 280mA continuous drain current. Substitute parts with equal or higher current ratings satisfy this requirement. Parts with lower ratings are compatible only if the application current demand does not exceed the substitute's specification.

On-Resistance (Rds On): The original part specifies 3Ohm maximum. Substitute parts with lower on-resistance values provide improved performance characteristics and are directly compatible. Higher on-resistance values increase power dissipation and may require thermal re-evaluation.

Gate Threshold Voltage (Vgs(th)): All candidates maintain logic level gate operation with threshold voltages in the 1.2V to 1.5V range, ensuring compatibility with standard digital control signals.

Package Compatibility: The original SOT-363 package is mechanically compatible with SC-88 and SC-70-6 variants, as these are equivalent 6-pin surface mount packages with identical pinout configurations.

Compliance and Status: Substitute parts must maintain ROHS3 compliance, MSL Level 1 rating, and active product status to ensure long-term availability and regulatory alignment.

Parameter Comparison

Engineering Selection Recommendations

FDG6301N (onsemi): This substitute is suitable for applications operating at 25V or below. The part maintains active product status with established supply chain availability. The 220mA continuous drain current is marginally lower than the original specification; applications requiring the full 280mA capability must be re-evaluated. The 4Ohm on-resistance is slightly higher, resulting in increased power dissipation compared to the original part. ROHS3 compliance and MSL Level 1 rating ensure regulatory and environmental compatibility. The SC-88 package is mechanically equivalent to the original SOT-363.

SI1902DL-T1-E3 (Vishay Siliconix): This substitute is suitable for applications operating at 20V or below. The part is classified as active with established manufacturing support. The 660mA continuous drain current significantly exceeds the original specification, providing enhanced current handling capability. The 385mOhm on-resistance is substantially lower than the original part, resulting in reduced power dissipation and improved thermal performance. The TrenchFET® technology designation indicates advanced process implementation. ROHS3 compliance and MSL Level 1 rating satisfy regulatory requirements. The SC-70-6 package is mechanically equivalent to the original SOT-363.

Selection Criteria: Choose FDG6301N for applications where 25V voltage rating is sufficient and current requirements do not exceed 220mA. Choose SI1902DL-T1-E3 for applications where 20V voltage rating is sufficient and lower on-resistance is beneficial. Both substitutes are unsuitable for circuits requiring the full 50V rating of the original part.

Frequently Asked Questions (FAQ)

Q: Can the FDG6301N or SI1902DL-T1-E3 be used as direct replacements for the DMN5L06DW-7 in all applications?

A: No. Both substitutes have lower voltage ratings (25V and 20V respectively) compared to the original 50V specification. They are compatible only in applications where the actual operating voltage does not exceed the substitute's Vdss rating. Applications requiring 50V operation must retain the original part or identify alternatives with equivalent voltage ratings.

Q: What is the impact of the lower on-resistance in the SI1902DL-T1-E3?

A: Lower on-resistance reduces power dissipation during conduction, resulting in lower junction temperatures and improved thermal performance. This is a beneficial characteristic that does not compromise compatibility. The reduced on-resistance may require re-evaluation of gate drive requirements due to increased gate charge.

Q: Are the package dimensions identical between SOT-363, SC-88, and SC-70-6?

A: SOT-363, SC-88, and SC-70-6 are equivalent 6-pin surface mount packages with identical pinout configurations and compatible land patterns. PCB layout modifications are not required for package substitution.

Q: What is the significance of the "Active" product status for substitute parts?

A: Active product status indicates ongoing manufacturing support, established supply chain availability, and long-term component viability. The obsolete status of the original part necessitates substitution to ensure continued design support and procurement reliability.

Q: How does the gate threshold voltage difference affect circuit operation?

A: The original part specifies 1.2V maximum threshold voltage, while both substitutes specify 1.5V maximum. This 0.3V difference is within the tolerance of standard digital logic levels (typically 0V to 5V or 0V to 3.3V). Gate drive circuits designed for the original part remain compatible with the substitutes.

Q: Can the FDG6301N and SI1902DL-T1-E3 be used interchangeably?

A: No. The FDG6301N is rated for 25V operation with 220mA current, while the SI1902DL-T1-E3 is rated for 20V operation with 660mA current. Selection depends on the specific voltage and current requirements of the application. The lower voltage rating of the SI1902DL-T1-E3 may be a limiting factor in some designs.

Q: What compliance certifications apply to all three parts?

A: All three parts maintain ROHS3 compliance, indicating restriction of hazardous substances in accordance with EU Directive 2011/65/EU. All parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling.