NTGS3433T1G P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The NTGS3433T1G is a P-Channel MOSFET manufactured by onsemi, rated for 12V drain-to-source voltage with 2.35A continuous drain current at 25°C. This device is packaged in a 6-TSOP (SOT-23-6 Thin) surface mount configuration and is designed for low-power switching applications requiring compact form factors.

The NTGS3433T1G carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

NTGS3433T1G

onsemiIn Stock: 21890NTGS3433T1G Datasheet

Current PartRFQ

DMP2033UVT-7

Diodes IncorporatedIn Stock: 27399DMP2033UVT-7 Datasheet

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RAQ045P01TCR

Rohm SemiconductorIn Stock: 5108RAQ045P01TCR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NTGS3433T1G is determined by the following critical parameters:

Primary Substitution Criteria:

• FET Type: P-Channel MOSFET (Metal Oxide technology)
• Drain-to-Source Voltage (Vdss): Minimum 12V (equal or higher rating acceptable)
• Continuous Drain Current (Id): Minimum 2.35A at 25°C (equal or higher rating acceptable)
• Operating Temperature Range: -55°C to 150°C (TJ) minimum
• RoHS3 Compliance and REACH Unaffected status
• Surface mount packaging with compatible pinout

Secondary Compatibility Factors:

• On-Resistance (Rds On): Lower values indicate improved performance
• Gate Charge (Qg): Lower values reduce switching losses
• Power Dissipation capability: Equal or higher ratings support thermal margin
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited) preferred for handling consistency

The substitute parts identified below meet or exceed the primary substitution criteria while maintaining electrical and mechanical compatibility with the original NTGS3433T1G design.

Parameter Comparison

Engineering Selection Recommendations

DMP2033UVT-7 (Diodes Incorporated)

The DMP2033UVT-7 is an active product with higher voltage and current ratings (20V, 4.2A) compared to the NTGS3433T1G. This device provides superior electrical performance with lower on-resistance (65mOhm vs. 75mOhm) and reduced gate charge (10.4nC vs. 15nC). The higher power dissipation rating (1.2W vs. 0.5W) offers increased thermal margin. Full RoHS3 compliance and MSL Level 1 rating ensure regulatory and handling compatibility. This substitute is suitable for applications where the higher voltage rating does not create design constraints.

RAQ045P01TCR (Rohm Semiconductor)

The RAQ045P01TCR is an active product with matched 12V voltage rating and significantly higher current capability (4.5A vs. 2.35A). This device delivers substantially lower on-resistance (30mOhm vs. 75mOhm), resulting in reduced power dissipation and improved thermal performance. The higher power dissipation rating (600mW vs. 500mW) provides additional thermal headroom. Full RoHS3 compliance and MSL Level 1 rating confirm regulatory and handling compatibility. This substitute is optimal for applications requiring direct voltage compatibility with enhanced current handling and efficiency.

Both substitute parts maintain the required operating temperature range (-55°C to 150°C TJ), surface mount packaging compatibility, and regulatory compliance status of the original NTGS3433T1G.

Frequently Asked Questions (FAQ)

Q: Can the DMP2033UVT-7 be used as a direct replacement for the NTGS3433T1G?

A: The DMP2033UVT-7 is electrically compatible as a substitute. It exceeds the minimum current requirement (4.2A vs. 2.35A) and provides superior on-resistance performance. The higher voltage rating (20V vs. 12V) is not a limitation in applications designed for 12V operation. Package compatibility requires verification of pinout alignment in the specific circuit layout.

Q: What are the advantages of the RAQ045P01TCR over the original NTGS3433T1G?

A: The RAQ045P01TCR provides matched 12V voltage rating with significantly improved electrical characteristics: 4.5A current capability (vs. 2.35A), 30mOhm on-resistance (vs. 75mOhm), and 600mW power dissipation (vs. 500mW). These improvements result in lower heat generation, reduced switching losses, and enhanced overall circuit efficiency.

Q: Are there package compatibility concerns between these substitutes?

A: All three devices use SOT-23-6 Thin surface mount packaging. However, the specific package designations differ (6-TSOP, TSOT-26, TSMT6). Physical pinout verification is required before PCB layout changes or rework. Consult device datasheets for exact pin assignments and mechanical dimensions.

Q: Do all substitute parts meet the same regulatory requirements as the NTGS3433T1G?

A: Yes. Both DMP2033UVT-7 and RAQ045P01TCR are RoHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, matching the compliance profile of the original NTGS3433T1G.

Q: What is the significance of the obsolete status of the NTGS3433T1G?

A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may be limited and subject to availability constraints. The identified substitute parts are active products with established supply chains, ensuring long-term design support and component availability.

Q: How do gate charge differences affect circuit performance?

A: Gate charge (Qg) determines the energy required to switch the MOSFET on and off. Lower gate charge reduces switching losses and allows faster switching speeds. The DMP2033UVT-7 (10.4nC) offers the lowest gate charge, while the RAQ045P01TCR (40nC) has higher gate charge but superior on-resistance characteristics. Selection depends on whether switching speed or conduction efficiency is the design priority.

Q: Can the higher current ratings of the substitutes cause circuit issues?

A: Higher current ratings do not cause circuit issues. They indicate the device can safely handle greater current without exceeding thermal or electrical limits. The actual current drawn by the circuit is determined by the load, not the device rating. Higher ratings provide design margin and thermal headroom.