TSM4953DCS Equivalent & Substitute Parts

Part Overview

The TSM4953DCS is an active, production-status dual P-channel MOSFET array manufactured by Taiwan Semiconductor Corporation. This surface-mount device integrates two P-channel MOSFETs in an 8-SOIC package, rated for 30V drain-to-source voltage and 4.9A continuous drain current at 25°C. The component is designed for applications requiring complementary switching functionality in compact form factors. Substitute parts are identified to provide equivalent electrical performance and mechanical compatibility for procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

TSM4953DCS

Taiwan Semiconductor CorporationIn Stock: 19061TSM4953DCS Datasheet

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IRF7316TRPBF

Infineon TechnologiesIn Stock: 37173IRF7316TRPBF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSM4953DCS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Drain-to-source voltage rating (Vdss) must equal or exceed 30V
• Continuous drain current (Id) must equal or exceed 4.9A at 25°C
• On-resistance (Rds On) must not exceed the specified maximum to ensure thermal and switching performance compatibility
• Gate threshold voltage (Vgs(th)) must fall within acceptable operating ranges for the application circuit
• Gate charge (Qg) and input capacitance (Ciss) must be compatible with driver circuit specifications

Mechanical Equivalence Criteria:

• Package type must be 8-SOIC with identical pin pitch and body dimensions (0.154", 3.90mm width)
• Mounting type must be surface mount
• Tape & Reel packaging format for automated assembly compatibility

Compliance Equivalence Criteria:

• RoHS3 compliance required
• REACH unaffected status required
• Active product status required

The IRF7316TRPBF meets all substitution criteria and is classified as a direct equivalent for the TSM4953DCS.

Parameter Comparison

Engineering Selection Recommendations

Both the TSM4953DCS and IRF7316TRPBF are active, production-status components with full RoHS3 compliance and REACH unaffected designation. Selection between these parts is based on the following engineering considerations:

TSM4953DCS Selection Criteria:

• Primary choice when Taiwan Semiconductor Corporation supply chain is preferred
• Suitable for applications where the 60mOhm on-resistance specification is acceptable
• Recommended when gate threshold voltage of 3V aligns with circuit design requirements
• Appropriate for thermal designs utilizing the 2.5W maximum power dissipation rating

IRF7316TRPBF Selection Criteria:

• Primary choice when Infineon Technologies supply chain is preferred
• Suitable for applications benefiting from lower on-resistance (58mOhm) for reduced power dissipation
• Recommended for logic-level gate drive applications due to 1V gate threshold voltage specification
• Appropriate when lower input capacitance (710pF) reduces driver circuit loading

Both components share identical voltage ratings, current ratings, package dimensions, and operating temperature ranges. The IRF7316TRPBF exhibits superior on-resistance performance and lower gate threshold voltage, while the TSM4953DCS provides higher maximum power dissipation capability. Component selection should be based on supply availability, cost considerations, and specific circuit requirements for gate drive voltage and thermal management.

Frequently Asked Questions (FAQ)

Q: Can the IRF7316TRPBF directly replace the TSM4953DCS in existing PCB designs?

A: Yes. Both components use identical 8-SOIC package geometry with 0.154" width and 3.90mm body dimensions. Pin-to-pin compatibility is confirmed. No PCB layout modifications are required for mechanical substitution.

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

A: The IRF7316TRPBF has lower on-resistance (58mOhm versus 60mOhm) and lower gate threshold voltage (1V versus 3V). The TSM4953DCS has higher maximum power dissipation (2.5W versus 2W) and higher gate charge (28nC versus 34nC). Both maintain identical 30V Vdss and 4.9A Id ratings.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the TSM4953DCS and IRF7316TRPBF operate across -55°C to 150°C junction temperature range without derating differences.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant and REACH unaffected. Both carry active product status with full manufacturing support.

Q: Which part should be selected for a gate-drive-limited application?

A: The IRF7316TRPBF is better suited for gate-drive-limited applications due to its lower gate threshold voltage (1V) and lower input capacitance (710pF), reducing driver circuit requirements compared to the TSM4953DCS.

Q: What is the impact of the on-resistance difference on circuit performance?

A: The 2mOhm difference (60mOhm versus 58mOhm) results in minimal power dissipation variation under identical operating conditions. Selection should be based on thermal budget requirements and available power dissipation headroom in the application.

Q: Are both parts available in Tape & Reel packaging for automated assembly?

A: Yes. Both the TSM4953DCS and IRF7316TRPBF are supplied in Tape & Reel (TR) format suitable for pick-and-place assembly operations.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Both parts are suitable for high-frequency switching. The IRF7316TRPBF may provide advantages in high-frequency applications due to lower gate charge (34nC) and lower input capacitance (710pF), resulting in reduced switching losses.