DMN66D0LW-7 Equivalent & Substitute Parts

Part Overview

The DMN66D0LW-7 is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 60V drain-to-source voltage with 115mA continuous drain current at 25°C. The device is packaged in SOT-323 (SC-70) surface mount configuration and is designed for low-power switching applications. The part is classified as Obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Substitute parts listed maintain electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

DMN66D0LW-7

Diodes IncorporatedIn Stock: 2471DMN66D0LW-7 Datasheet

Current PartRFQ

2N7002BKW,115

Nexperia USA Inc.In Stock: 1503282N7002BKW,115 Datasheet

MFR RecommendedRFQ

2N7002PW,115

Nexperia USA Inc.In Stock: 4233162N7002PW,115 Datasheet

MFR RecommendedRFQ

NX7002AKW,115

Nexperia USA Inc.In Stock: 2410NX7002AKW,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DMN66D0LW-7 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Drain to Source Voltage (Vdss): 60V minimum
• Package / Case: SC-70, SOT-323 (identical physical footprint)
• Mounting Type: Surface Mount
• Gate-Source Voltage (Vgs): ±20V maximum rating
• Operating Temperature Range: -55°C to 150°C minimum

Functional Compatibility Criteria:

• FET Type: N-Channel
• Technology: MOSFET (Metal Oxide)
• Continuous Drain Current (Id): Equal to or greater than 115mA at 25°C
• Power Dissipation: Equal to or greater than 200mW
• Rds On: Equal to or less than 6 Ohm at specified conditions

Compliance Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

All three substitute parts (2N7002BKW,115; 2N7002PW,115; NX7002AKW,115) meet or exceed these criteria and are manufactured by Nexperia USA Inc., a qualified alternative source.

Parameter Comparison

Engineering Selection Recommendations

2N7002BKW,115 (Primary Recommendation)

The 2N7002BKW,115 is classified as Active product status and carries AEC-Q101 automotive qualification. This part exceeds the electrical requirements of the DMN66D0LW-7 with 310mA continuous drain current and 275mW power dissipation, providing design margin for current-limited applications. The lower on-resistance (1.6 Ohm) reduces power loss in switching circuits. Identical SOT-323 packaging ensures direct footprint compatibility. ROHS3 compliance and MSL 1 rating maintain environmental and moisture handling standards.

NX7002AKW,115 (Secondary Recommendation)

The NX7002AKW,115 is classified as Active product status with current inventory availability. This part provides 170mA continuous drain current and 220mW power dissipation, closely matching the original part's current rating while maintaining electrical compatibility. The 4.5 Ohm on-resistance is within acceptable range for low-power switching applications. Lower input capacitance (17 pF) compared to the original part (23 pF) may provide improved switching performance in certain circuit topologies. Identical SOT-323 packaging and full temperature range support ensure direct substitution capability.

2N7002PW,115 (Alternative for Existing Inventory)

The 2N7002PW,115 is classified as Not For New Designs but remains available in high inventory quantity (423,300 pieces). This part meets all electrical and mechanical compatibility requirements with 310mA continuous drain current and 260mW power dissipation. AEC-Q100 automotive qualification and full temperature range (-55°C to 150°C) support existing applications. This option is suitable for sustaining production of legacy designs where component qualification has been completed.

Frequently Asked Questions (FAQ)

Q: Can the 2N7002BKW,115 directly replace the DMN66D0LW-7 without circuit modifications?

A: Yes. Both parts share identical Vdss (60V), Vgs (±20V), and SOT-323 package specifications. The 2N7002BKW,115 exceeds the original part's current and power ratings, providing design margin. Pin-to-pin compatibility is maintained for direct PCB substitution.

Q: What is the difference between the three substitute parts?

A: The primary differences are continuous drain current ratings and on-resistance characteristics. The 2N7002BKW,115 and 2N7002PW,115 both provide 310mA (2.7× the original), while the NX7002AKW,115 provides 170mA (1.5× the original). On-resistance values differ: 2N7002 series at 1.6 Ohm versus NX7002AKW,115 at 4.5 Ohm. All three maintain 60V Vdss and SOT-323 packaging.

Q: Why is the 2N7002PW,115 marked "Not For New Designs"?

A: This designation indicates the manufacturer recommends this part for sustaining production of existing designs only. New designs should utilize the 2N7002BKW,115 or NX7002AKW,115, both classified as Active. However, the 2N7002PW,115 remains electrically and mechanically compatible for legacy applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All three substitute parts (2N7002BKW,115, 2N7002PW,115, and NX7002AKW,115) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original DMN66D0LW-7 environmental specifications.

Q: What is the impact of different input capacitance values on circuit performance?

A: Input capacitance (Ciss) affects gate charge and switching speed. The NX7002AKW,115 has 17 pF (lower than original 23 pF), while 2N7002 variants have 50 pF (higher). Lower capacitance enables faster switching transitions; higher capacitance may require increased gate drive current. Circuit performance depends on gate driver capability and switching frequency requirements.

Q: Can I use the 2N7002BKW,115 in applications requiring the exact 115mA current rating?

A: Yes. The 2N7002BKW,115 is rated for 310mA continuous drain current, which exceeds the 115mA requirement. The part operates safely at lower current levels. Circuit design should account for the lower on-resistance (1.6 Ohm versus 6 Ohm), which reduces power dissipation in the FET itself.

Q: Are there temperature range differences between substitute parts?

A: The 2N7002BKW,115 specifies maximum operating temperature of 150°C (Tj) without lower limit documentation. The 2N7002PW,115 and NX7002AKW,115 both specify -55°C to 150°C (Tj), matching the original part's full temperature range. For applications requiring full -55°C to 150°C operation, the 2N7002PW,115 or NX7002AKW,115 are preferred.

Q: What packaging options are available for these substitute parts?

A: All substitute parts are available in SOT-323 (SC-70) surface mount package only, matching the original DMN66D0LW-7. Packaging options differ by supplier: 2N7002BKW,115 and 2N7002PW,115 are supplied in Cut Tape (CT) & Digi-Reel®; NX7002AKW,115 is supplied in Cut Tape (CT) & Digi-Reel®. All are suitable for automated assembly processes.