TSM2301ACX RFG P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The TSM2301ACX RFG is a P-Channel MOSFET rated for 20V drain-to-source voltage with 2.8A continuous drain current in a surface mount SOT-23 package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer readily available or where design optimization is required for new applications.

Substiute Parts

TSM2301ACX RFG

Taiwan Semiconductor CorporationIn Stock: 16401TSM2301ACX RFG Datasheet

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TSM650P02CX RFG

Taiwan Semiconductor CorporationIn Stock: 16565TSM650P02CX RFG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSM2301ACX RFG is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

• FET Type: P-Channel topology
• Drain-to-Source Voltage (Vdss): 20V minimum rating
• Package: SOT-23 surface mount form factor
• Mounting Type: Surface mount compatibility

Performance Consideration Parameters:

• Continuous Drain Current (Id): Substitute must meet or exceed 2.8A requirement
• On-Resistance (Rds On): Lower values indicate improved performance and reduced power dissipation
• Gate Threshold Voltage (Vgs(th)): Must be compatible with existing gate drive circuitry
• Power Dissipation: Substitute must handle thermal requirements of the application
• Operating Temperature Range: Must encompass application operating conditions

The TSM650P02CX RFG qualifies as a substitute part because it maintains identical Vdss (20V), identical package (SOT-23), identical FET type (P-Channel), and exceeds the current rating (4.1A vs. 2.8A). The substitute offers improved electrical characteristics including lower on-resistance and higher power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

For Legacy System Maintenance: The TSM2301ACX RFG remains suitable for direct replacement in existing applications where the original part is unavailable. Inventory availability (16,388 pcs) supports continued support of fielded systems.

For New Designs and System Upgrades: The TSM650P02CX RFG is the recommended substitute. This part is classified as "Active" product status, ensuring long-term availability and supply chain continuity. The TSM650P02CX RFG provides superior electrical performance with 50% reduction in on-resistance (65 mOhm vs. 130 mOhm), 46% increase in current rating (4.1A vs. 2.8A), and 123% increase in power dissipation capability (1.56W vs. 700mW). Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements.

The lower gate threshold voltage (800mV vs. 1V) of the TSM650P02CX RFG enables operation with reduced gate drive voltage, potentially improving system efficiency. The substitute part is pin-compatible in the SOT-23 package and maintains identical Vdss rating, ensuring direct circuit compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TSM650P02CX RFG directly replace the TSM2301ACX RFG in existing circuits?

A: Yes. Both parts are P-Channel MOSFETs with identical 20V Vdss rating and SOT-23 package pinout. The TSM650P02CX RFG exceeds the current and power dissipation requirements of the original part, making it electrically and mechanically compatible for direct substitution.

Q: What are the key differences between these two parts?

A: The TSM650P02CX RFG offers improved performance specifications: 46% higher continuous drain current (4.1A vs. 2.8A), 50% lower on-resistance (65 mOhm vs. 130 mOhm), and 123% higher power dissipation rating (1.56W vs. 700mW). The substitute also features lower gate threshold voltage (800mV vs. 1V) and is classified as Active product status versus Not For New Designs.

Q: Are there any gate drive voltage compatibility concerns?

A: The TSM650P02CX RFG has a maximum Vgs rating of ±10V compared to ±12V for the TSM2301ACX RFG. Existing gate drive circuits operating within ±10V are fully compatible. Circuits requiring the full ±12V range must be evaluated for the reduced maximum gate voltage specification.

Q: What is the significance of the product status difference?

A: The TSM2301ACX RFG is classified "Not For New Designs," indicating end-of-life status with limited future availability. The TSM650P02CX RFG is "Active," ensuring continued manufacturing and supply chain support for long-term applications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TSM2301ACX RFG and TSM650P02CX RFG are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for commercial and industrial applications.

Q: What is the moisture sensitivity level difference?

A: The TSM2301ACX RFG has MSL 3 (168 hours), while the TSM650P02CX RFG has MSL 1 (unlimited). The substitute part offers superior moisture resistance, reducing handling and storage constraints during manufacturing and assembly processes.

Q: Can the TSM650P02CX RFG be used in applications requiring the full -55°C to 150°C operating range?

A: The TSM650P02CX RFG specification provided does not include the lower operating temperature limit. Applications requiring confirmed operation at -55°C must verify the complete operating temperature range with the manufacturer datasheet before substitution.