DMN2050LFDB-7 Equivalent & Substitute Parts

Part Overview

The DMN2050LFDB-7 is a dual N-channel MOSFET array manufactured by Diodes Incorporated, designed for surface mount applications requiring logic level gate switching at 20V drain-source voltage ratings. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including drain-source voltage, continuous drain current, on-resistance characteristics, and package form factor. The primary substitute identified for this device is the PMDPB30XN,115 from Nexperia USA Inc., which maintains functional equivalence within specified operating parameters.

Substiute Parts

DMN2050LFDB-7

Diodes IncorporatedIn Stock: 4408DMN2050LFDB-7 Datasheet

Current PartRFQ

PMDPB30XN,115

Nexperia USA Inc.In Stock: 2286PMDPB30XN,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DMN2050LFDB-7 is determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Drain-Source Voltage (Vdss) rating of 20V or greater
• Continuous drain current (Id) capability of 3.3A or greater at 25°C
• Logic level gate feature for direct gate drive compatibility
• Dual N-channel configuration (2 N-channel MOSFETs in single package)
• Operating temperature range spanning -55°C to 150°C

Mechanical Compatibility Criteria:

• Surface mount technology
• 6-pin package configuration with exposed pad
• Physical dimensions compatible with U-DFN or equivalent form factors

Compliance Criteria:

• RoHS3 compliance
• MSL 1 rating (unlimited moisture sensitivity)
• Active product status

The PMDPB30XN,115 from Nexperia USA Inc. meets all substitution criteria with enhanced electrical performance in specific parameters while maintaining full compatibility with the DMN2050LFDB-7 in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: PMDPB30XN,115

The PMDPB30XN,115 is a direct functional substitute for the DMN2050LFDB-7 based on the following engineering criteria:

Electrical Performance: The substitute device provides equivalent 20V Vdss rating with enhanced continuous drain current capability (4A versus 3.3A). On-resistance is improved at the specified gate voltage (40 mOhm versus 45 mOhm), resulting in lower conduction losses. Gate threshold voltage is lower (900mV versus 1V), enabling faster switching response at lower gate drive levels.

Compliance & Certification: Both devices maintain RoHS3 compliance, MSL 1 rating, and Active product status. Both are classified under identical HTSUS and ECCN codes, confirming regulatory equivalence.

Package Compatibility: Both devices employ 6-pin surface mount packages with exposed pads in the U-DFN/UFDFN form factor family. Physical dimensions and pin configurations are compatible for direct PCB layout substitution.

Operational Considerations: The substitute device exhibits higher gate charge (21.7 nC versus 12 nC) and input capacitance (660 pF versus 389 pF), which may require adjustment to gate drive circuit timing in applications with marginal drive capability. The lower maximum power dissipation rating (490 mW versus 730 mW) indicates reduced thermal headroom; thermal analysis is required for applications operating near maximum power levels.

Frequently Asked Questions (FAQ)

Q: Can the PMDPB30XN,115 be used as a direct replacement for the DMN2050LFDB-7 on existing PCBs?

A: Yes. Both devices employ compatible 6-pin surface mount packages with exposed pads in the U-DFN/UFDFN form factor family. Pin configurations and physical dimensions are compatible for direct PCB substitution without layout modification.

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

A: The PMDPB30XN,115 provides higher continuous drain current (4A versus 3.3A), lower on-resistance (40 mOhm versus 45 mOhm), and lower gate threshold voltage (900mV versus 1V). However, it exhibits higher gate charge and input capacitance, and lower maximum power dissipation. Both maintain identical 20V Vdss rating and operating temperature range.

Q: Are there any gate drive circuit modifications required when substituting the PMDPB30XN,115?

A: The higher gate charge (21.7 nC versus 12 nC) and input capacitance (660 pF versus 389 pF) of the substitute device may require adjustment to gate drive circuit timing and current capability. Gate drive circuits with marginal current output should be evaluated for adequate charge delivery at the intended switching frequency.

Q: Do both devices meet the same regulatory and compliance standards?

A: Yes. Both the DMN2050LFDB-7 and PMDPB30XN,115 are RoHS3 compliant, carry MSL 1 rating (unlimited moisture sensitivity), and maintain Active product status. Both are classified under identical HTSUS code 8541.21.0095 and ECCN EAR99.

Q: What is the impact of the lower maximum power dissipation rating on the PMDPB30XN,115?

A: The substitute device has a maximum power dissipation rating of 490 mW compared to 730 mW for the original device. Applications operating at high continuous drain current or elevated ambient temperatures should perform thermal analysis to ensure the substitute device remains within safe operating limits.

Q: Are both devices available in the same packaging options?

A: The DMN2050LFDB-7 is supplied in Tape & Reel (TR) packaging, while the PMDPB30XN,115 is available in Cut Tape (CT) and Digi-Reel® packaging. Both employ identical surface mount technology and package form factors, but procurement channels and packaging quantities may differ.

Q: Can the PMDPB30XN,115 handle higher current applications than the DMN2050LFDB-7?

A: Yes. The PMDPB30XN,115 is rated for 4A continuous drain current compared to 3.3A for the DMN2050LFDB-7. However, the lower maximum power dissipation rating (490 mW versus 730 mW) must be considered in thermal design calculations for high-current applications.