DMP2066LSD-13 Equivalent & Substitute Parts

Part Overview

The DMP2066LSD-13 is a dual P-channel MOSFET array manufactured by Diodes Incorporated, designed for surface mount applications in 8-SO packaging. This component features a 20V drain-to-source voltage rating with 5.8A continuous drain current capability and logic level gate operation. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

DMP2066LSD-13

Diodes IncorporatedIn Stock: 104294DMP2066LSD-13 Datasheet

Current PartRFQ

DMP2040USD-13

Diodes IncorporatedIn Stock: 30337DMP2040USD-13 Datasheet

DirectRFQ

FDS6875

onsemiIn Stock: 80191FDS6875 Datasheet

MFR RecommendedRFQ

IRF7314TRPBF

Infineon TechnologiesIn Stock: 15381IRF7314TRPBF Datasheet

MFR RecommendedRFQ

SI9933CDY-T1-GE3

Vishay SiliconixIn Stock: 38128SI9933CDY-T1-GE3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMP2066LSD-13 is determined by strict alignment of the following critical parameters:

Mandatory Matching Criteria:

• Drain-to-Source Voltage (Vdss): 20V
• Configuration: 2 P-Channel (Dual)
• Package: 8-SOIC / 8-SO form factor
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (minimum)

Performance Compatibility Criteria:

• Continuous Drain Current (Id): Equal to or greater than 5.8A
• On-Resistance (Rds On): Lower or equivalent values ensure thermal performance
• Gate Threshold Voltage (Vgs(th)): Within logic level gate specifications
• Maximum Power Dissipation: Sufficient for application thermal requirements

All identified substitute parts meet the mandatory matching criteria and maintain electrical performance within acceptable operating parameters for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

DMP2040USD-13 (Diodes Incorporated)

This substitute offers superior current handling capability (6.5A at Ta, 12A at Tc) with improved on-resistance (33 mOhm) compared to the original part. The DMP2040USD-13 maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. This part is recommended for applications requiring enhanced thermal performance and current capacity within the same package footprint.

FDS6875 (onsemi)

The FDS6875 provides the lowest on-resistance specification (30 mOhm) among substitute options, delivering superior thermal efficiency. Manufactured by onsemi under the PowerTrench® series, this part maintains active status with full RoHS3 compliance. The higher input capacitance (2250 pF) requires circuit evaluation for switching speed applications. This part is suitable for designs prioritizing power dissipation minimization.

IRF7314TRPBF (Infineon Technologies)

The IRF7314TRPBF is a HEXFET® series component with matching 2W power dissipation and identical operating temperature range to the original part. This substitute carries Last Time Buy status, indicating limited future availability. The part features the lowest gate threshold voltage (0.7V) among alternatives, enabling operation with lower gate drive voltages. Selection of this part requires consideration of end-of-life procurement constraints.

SI9933CDY-T1-GE3 (Vishay Siliconix)

The SI9933CDY-T1-GE3 is a TrenchFET® series component with the highest power dissipation rating (3.1W) and lowest input capacitance (665 pF) among substitutes. This part maintains active product status with full RoHS3 compliance. The minimum operating temperature of -50°C (versus -55°C for other options) requires verification for applications requiring full -55°C operation. This part is optimal for high-frequency switching applications where capacitance minimization is critical.

Frequently Asked Questions (FAQ)

Q: Can the DMP2066LSD-13 be directly replaced with any of these substitute parts?

A: Direct replacement is possible only when the application circuit does not depend on specific electrical characteristics that differ between parts. All substitutes maintain the same 20V Vdss rating, dual P-channel configuration, and 8-SOIC package form factor. However, differences in on-resistance, gate charge, and input capacitance may affect circuit performance in switching speed and thermal management applications. Circuit validation is required for critical applications.

Q: What is the primary reason for substitution?

A: The DMP2066LSD-13 is classified as obsolete, making long-term procurement unavailable. All identified substitutes maintain active or Last Time Buy status, ensuring supply chain continuity. The substitutes provide equivalent or superior electrical performance within the same package specification.

Q: How do on-resistance differences affect circuit performance?

A: On-resistance (Rds On) directly determines power dissipation and thermal performance. Lower on-resistance values reduce heat generation during continuous operation. The DMP2040USD-13 (33 mOhm), FDS6875 (30 mOhm), and SI9933CDY-T1-GE3 (58 mOhm) offer varying thermal characteristics. Applications with high current density or continuous operation benefit from lower on-resistance specifications.

Q: Are all substitutes RoHS3 compliant?

A: All identified substitute parts carry RoHS3 compliance certification. The original DMP2066LSD-13 also maintains RoHS3 compliance. All parts carry MSL Level 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Q: What is the significance of gate charge (Qg) differences?

A: Gate charge determines the energy required to switch the MOSFET on and off. Lower gate charge values (DMP2066LSD-13 at 10.1 nC) enable faster switching with lower gate drive power requirements. Higher gate charge values (FDS6875 at 31 nC) require greater gate drive capability but may provide improved noise immunity. Circuit gate driver specifications must accommodate the selected part's gate charge requirement.

Q: Which substitute is recommended for high-frequency switching applications?

A: The SI9933CDY-T1-GE3 features the lowest input capacitance (665 pF) among substitutes, enabling faster switching transitions with reduced capacitive coupling effects. The IRF7314TRPBF (780 pF) and DMP2066LSD-13 (820 pF) provide comparable performance. The FDS6875 (2250 pF) exhibits significantly higher capacitance and is less suitable for high-frequency applications above 1 MHz.

Q: What is the operating temperature range consideration?

A: The DMP2066LSD-13, DMP2040USD-13, FDS6875, and IRF7314TRPBF all support -55°C to 150°C operation. The SI9933CDY-T1-GE3 operates from -50°C to 150°C, limiting its use in applications requiring full -55°C minimum temperature operation. Verification of application temperature requirements is necessary before selecting this substitute.

Q: Are there package compatibility concerns?

A: All substitute parts utilize 8-SOIC or 8-SO packaging with identical 0.154" (3.90mm) width specifications. Physical footprint compatibility is maintained across all options. PCB layout modifications are not required for package substitution.

Q: What is the significance of Last Time Buy status for IRF7314TRPBF?

A: Last Time Buy status indicates that Infineon Technologies has announced end-of-life for this component. While current inventory is available (15,294 pieces), future procurement will not be possible after the Last Time Buy date. This part is suitable only for applications with defined production end dates or where existing inventory is sufficient for product lifecycle requirements.

Q: How should current rating differences be evaluated?

A: The DMP2040USD-13 offers the highest current rating (6.5A at Ta, 12A at Tc), exceeding the original 5.8A specification. The FDS6875 (6A) and IRF7314TRPBF (5.3A) provide comparable or slightly lower ratings. The SI9933CDY-T1-GE3 (4A) is the lowest-rated option. Applications operating near maximum current limits require careful evaluation of thermal performance and derating curves for the selected substitute.