TSM9409CS P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The TSM9409CS is a P-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) manufactured by Taiwan Semiconductor Corporation. This device is rated for 60V drain-to-source voltage with a continuous drain current of 3.5A at 25°C and maximum power dissipation of 3W. The component is housed in an 8-SOP surface mount package and is currently in Active product status with 5870 units in stock.

Substitute parts become necessary when the primary part number reaches end-of-life status, when packaging format requirements change from Tape & Reel to Cut Tape, or when inventory constraints require alternative sourcing from the same manufacturer's product line. The TSM9409CS RLG variant is available as a parametric equivalent with identical electrical specifications but different packaging format and product lifecycle status.

Substiute Parts

TSM9409CS

Taiwan Semiconductor CorporationIn Stock: 5906TSM9409CS Datasheet

Current PartRFQ

TSM9409CS RLG

Taiwan Semiconductor CorporationIn Stock: 2172TSM9409CS RLG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSM9409CS is based on electrical and mechanical parameter equivalence within the P-Channel MOSFET category. The substitute part TSM9409CS RLG maintains identical electrical specifications across all critical parameters: 60V Vdss rating, 3.5A continuous drain current, 155mOhm maximum on-resistance, gate threshold voltage, gate charge, and operating temperature range.

The primary distinction between the main part and its substitute is the packaging format. The TSM9409CS is supplied in Tape & Reel (TR) format, while the TSM9409CS RLG is supplied in Cut Tape (CT) format. Both variants use the same 8-SOP package footprint (8-SOIC, 0.154" width, 3.90mm) and are suitable for identical PCB assembly processes.

Substitution is valid when the following parameters match:

• Drain to Source Voltage (Vdss): 60V
• Continuous Drain Current (Id): 3.5A @ 25°C
• On-Resistance (Rds On): 155mOhm @ 3.5A, 10V
• Gate Threshold Voltage: 1V @ 250µA
• Gate Charge: 6nC @ 10V
• Maximum Gate Voltage: ±20V
• Input Capacitance: 540pF @ 30V
• Power Dissipation: 3W
• Operating Temperature: -55°C to 150°C
• Package: 8-SOIC Surface Mount

Parameter Comparison

Engineering Selection Recommendations

The TSM9409CS RLG is a valid parametric equivalent to the TSM9409CS for applications requiring identical electrical performance and package footprint. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Selection between these two variants should be based on supply chain requirements and packaging format compatibility:

TSM9409CS (Tape & Reel): Select this part number for new designs and production runs where Tape & Reel packaging is compatible with automated assembly equipment. This part maintains Active product status, indicating ongoing manufacturer support and long-term availability.

TSM9409CS RLG (Cut Tape): This variant is suitable for applications where Cut Tape packaging is required or preferred. Note that this part carries a "Not For New Designs" status, indicating that the manufacturer is not recommending this variant for new product development. This status does not affect electrical compatibility but reflects the manufacturer's product lifecycle strategy.

Both parts share identical electrical specifications, thermal characteristics, and compliance certifications. PCB layout, thermal management, and circuit design considerations remain unchanged between variants.

Frequently Asked Questions (FAQ)

Q: Are the TSM9409CS and TSM9409CS RLG electrically identical?

A: Yes. Both parts are rated for 60V Vdss, 3.5A continuous drain current, 155mOhm on-resistance, and all other electrical parameters are identical. They use the same 8-SOIC package footprint and are suitable for identical circuit applications.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on a continuous reel suitable for high-speed automated pick-and-place assembly. Cut Tape (CT) packaging supplies individual components cut from the reel, typically used for lower-volume assembly or manual handling. Both formats use the same component and package dimensions.

Q: Can I use TSM9409CS RLG in a design originally specified for TSM9409CS?

A: Yes, from an electrical and mechanical standpoint. The TSM9409CS RLG has identical electrical specifications and the same package footprint. However, the "Not For New Designs" status on the RLG variant indicates the manufacturer recommends using the TSM9409CS for new product development.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TSM9409CS and TSM9409CS RLG are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What is the maximum gate voltage for these MOSFETs?

A: The maximum gate voltage (Vgs) is ±20V for both variants. This rating must be observed during circuit design to prevent gate oxide damage.

Q: What is the operating temperature range?

A: Both parts operate from -55°C to 150°C junction temperature (TJ), suitable for industrial and automotive applications within this thermal range.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. Both parts use the 8-SOIC package with identical pin configuration and footprint dimensions (0.154" width, 3.90mm). No PCB layout modifications are required when substituting between these variants.

Q: What is the on-resistance specification?

A: The maximum on-resistance (Rds On) is 155mOhm measured at 3.5A drain current and 10V gate-source voltage for both parts. This specification is critical for power dissipation calculations in switching applications.