NTB65N02RG Equivalent & Substitute Parts

Part Overview

The NTB65N02RG is an N-Channel MOSFET manufactured by onsemi, rated for 25V drain-to-source voltage with 65A continuous drain current in a D2PAK surface mount package. This component is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design support and procurement. Substitute parts must maintain functional compatibility across voltage, current, and thermal specifications while accommodating the D2PAK package form factor.

Substiute Parts

NTB65N02RG

onsemiIn Stock: 2128NTB65N02RG Datasheet

Current PartRFQ

PHB66NQ03LT,118

Nexperia USA Inc.In Stock: 1088PHB66NQ03LT,118 Datasheet

SimilarRFQ

PSMN017-30BL,118

Nexperia USA Inc.In Stock: 2850PSMN017-30BL,118 Datasheet

SimilarRFQ

PSMN4R3-30BL,118

Nexperia USA Inc.In Stock: 10797PSMN4R3-30BL,118 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NTB65N02RG is determined by the following critical parameters:

Voltage Compatibility: Substitute parts must have a Vdss rating equal to or greater than 25V to ensure safe operation under the same voltage conditions.

Current Capacity: Substitute parts must support continuous drain current (Id) at or above 65A to maintain equivalent current-handling capability.

Package Compatibility: All substitute parts must use the D2PAK surface mount package to ensure mechanical and thermal interface compatibility with existing PCB designs.

Gate Drive Voltage: Substitute parts must operate within the ±20V gate voltage specification to ensure compatibility with existing gate drive circuits.

Operating Temperature Range: Substitute parts must support the full operating temperature range of -55°C to 150°C minimum to maintain functional reliability across environmental conditions.

Thermal Performance: Substitute parts must demonstrate thermal dissipation characteristics suitable for the application's thermal management requirements.

The following parts meet these substitution criteria:

PHB66NQ03LT,118 (Nexperia USA Inc.): 25V, 66A, D2PAK package. Exceeds current specification by 1A. Operating temperature range extends to 175°C.

PSMN4R3-30BL,118 (Nexperia USA Inc.): 30V, 100A, D2PAK package. Exceeds both voltage and current specifications. Active product status. Operating temperature range extends to 175°C.

PSMN017-30BL,118 (Nexperia USA Inc.): 30V, 32A, D2PAK package. Exceeds voltage specification but provides reduced current capacity at 32A. Operating temperature range extends to 175°C.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: PSMN4R3-30BL,118

The PSMN4R3-30BL,118 is the recommended substitute for new designs and ongoing procurement. This part maintains active product status, ensuring long-term availability and supply chain stability. The 30V Vdss rating provides voltage margin above the 25V specification of the NTB65N02RG. The 100A continuous drain current significantly exceeds the 65A requirement, providing operational headroom. The D2PAK package ensures direct mechanical compatibility. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. The extended operating temperature range to 175°C provides thermal margin. Lower on-resistance (4.1mOhm) improves thermal efficiency compared to the original part.

Secondary Substitute: PHB66NQ03LT,118

The PHB66NQ03LT,118 provides the closest electrical match to the NTB65N02RG, with identical 25V Vdss rating and marginally higher 66A continuous drain current. The D2PAK package maintains mechanical compatibility. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. Extended operating temperature range to 175°C provides thermal margin. However, this part is classified as obsolete, limiting its suitability for long-term applications.

Tertiary Substitute: PSMN017-30BL,118

The PSMN017-30BL,118 is suitable only for applications where the 32A continuous drain current specification is adequate. The 30V Vdss rating provides voltage margin. The D2PAK package ensures mechanical compatibility. ROHS3 compliance and REACH unaffected status satisfy regulatory requirements. Extended operating temperature range to 175°C provides thermal margin. This part is classified as obsolete, limiting its suitability for long-term applications. Higher on-resistance (17mOhm) results in increased thermal dissipation compared to the original part.

Frequently Asked Questions (FAQ)

Q: Can the PSMN4R3-30BL,118 directly replace the NTB65N02RG in existing designs?

A: The PSMN4R3-30BL,118 is electrically and mechanically compatible with the NTB65N02RG. Both parts use the D2PAK package and operate within the same gate voltage range (±20V). The higher voltage and current ratings of the PSMN4R3-30BL,118 provide operational margin. No circuit modifications are required for direct substitution.

Q: What is the significance of the voltage rating difference between the NTB65N02RG (25V) and substitute parts rated at 30V?

A: The 30V-rated parts (PSMN4R3-30BL,118 and PSMN017-30BL,118) provide voltage margin above the 25V specification. This margin improves reliability and allows operation in applications with transient voltage spikes. The higher voltage rating does not negatively impact performance in 25V applications.

Q: Why is the PSMN4R3-30BL,118 recommended over the PHB66NQ03LT,118 despite similar electrical specifications?

A: The PSMN4R3-30BL,118 is classified as active product status, ensuring continued availability and supply chain support. The PHB66NQ03LT,118 is obsolete, which limits procurement options and long-term reliability. For new designs and ongoing production, active status is a critical selection criterion.

Q: Are there thermal management differences between the NTB65N02RG and the substitute parts?

A: The substitute parts demonstrate higher maximum power dissipation ratings (93W to 103W at Tc) compared to the NTB65N02RG (62.5W at Tc). The PSMN4R3-30BL,118 exhibits lower on-resistance (4.1mOhm), resulting in reduced thermal dissipation during operation. Thermal management design should account for these differences in PCB layout and heatsinking.

Q: Is the D2PAK package identical across all listed parts?

A: All listed parts use the D2PAK surface mount package (TO-263-3, D2PAK with 2 Leads + Tab, TO-263AB). Package dimensions and pin configurations are identical, ensuring direct mechanical compatibility on existing PCBs without layout modifications.

Q: What compliance certifications apply to the substitute parts?

A: All substitute parts are ROHS3 compliant and REACH unaffected. These certifications satisfy environmental and regulatory requirements for electronic components in most jurisdictions. The NTB65N02RG does not specify RoHS status but is REACH unaffected.

Q: How do gate charge specifications affect circuit design when substituting parts?

A: Gate charge (Qg) varies across the substitute parts (9.5 nC to 41.5 nC). Higher gate charge requires increased gate drive current or extended switching times. The PSMN4R3-30BL,118 exhibits significantly higher gate charge (41.5 nC) due to its higher current rating. Gate drive circuits must be evaluated to ensure adequate drive capability for the selected substitute part.

Q: Can the PSMN017-30BL,118 be used in applications requiring 65A continuous current?

A: No. The PSMN017-30BL,118 is rated for 32A continuous drain current, which is insufficient for applications requiring 65A. This part is suitable only for applications with current requirements at or below 32A. The PSMN4R3-30BL,118 or PHB66NQ03LT,118 must be used for 65A applications.

Q: What is the operating temperature range difference, and does it affect substitution decisions?

A: The NTB65N02RG operates from -55°C to 150°C. All substitute parts extend the upper temperature limit to 175°C. This extended range provides thermal margin and improves reliability in high-temperature environments. The extended range does not negatively impact performance in applications operating within the original -55°C to 150°C range.