TSM4425CS RLG MOSFET P-Channel 30V 11A Equivalent & Substitute Parts

Part Overview

The TSM4425CS RLG is a P-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) rated for 30V drain-to-source voltage with 11A continuous drain current at 25°C. This device is packaged in an 8-SOP surface mount configuration and is designed for applications requiring moderate current switching and power dissipation up to 2.5W at ambient temperature.

The TSM4425CS RLG is classified as an obsolete product. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

TSM4425CS RLG

Taiwan Semiconductor CorporationIn Stock: 20220TSM4425CS RLG Datasheet

Current PartRFQ

TSM085P03CS RLG

Taiwan Semiconductor CorporationIn Stock: 18179TSM085P03CS RLG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSM4425CS RLG is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• FET Type: P-Channel topology must be maintained
• Drain to Source Voltage (Vdss): Minimum 30V rating required
• Gate-Source Voltage (Vgs): Maximum ±20V rating required
• Operating Temperature Range: Must encompass -55°C to 150°C (TJ)
• RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount required
• Package / Case: 8-SOIC (0.154", 3.90mm Width) required
• Moisture Sensitivity Level: MSL 1 (Unlimited) required

Current and Power Considerations: Substitute parts may exceed the original 11A continuous drain current and 2.5W power dissipation specifications. Higher current ratings and power dissipation capabilities provide design margin and do not compromise compatibility with applications designed for the TSM4425CS RLG.

Parameter Comparison

Engineering Selection Recommendations

The TSM085P03CS RLG is a direct substitute for the TSM4425CS RLG based on the following engineering criteria:

Electrical Compatibility: Both devices maintain identical Vdss (30V) and Vgs (±20V) ratings, ensuring compatibility with existing circuit designs. The TSM085P03CS RLG provides superior electrical performance with lower on-resistance (8.5 mOhm versus 12 mOhm) and lower gate charge (56 nC versus 64 nC), resulting in improved switching efficiency and reduced power dissipation.

Mechanical and Packaging Compatibility: Both devices are packaged in 8-SOIC (0.154", 3.90mm Width) surface mount configuration with identical MSL 1 (Unlimited) moisture sensitivity ratings. Pin-to-pin compatibility is maintained, allowing direct board-level substitution without layout modifications.

Compliance and Regulatory Status: Both devices maintain ROHS3 Compliant and REACH Unaffected status, ensuring continued compliance with environmental and regulatory requirements. The TSM085P03CS RLG is classified as an Active product, providing assured long-term supply availability compared to the Obsolete status of the TSM4425CS RLG.

Current and Power Handling: The TSM085P03CS RLG is rated for 34A continuous drain current and 14W power dissipation, exceeding the original 11A and 2.5W specifications. This enhanced capability provides design margin for thermal management and current distribution in applications originally designed for the TSM4425CS RLG.

Frequently Asked Questions (FAQ)

Q: Can the TSM085P03CS RLG be used as a direct replacement for the TSM4425CS RLG in existing designs?

A: Yes. The TSM085P03CS RLG is electrically and mechanically compatible with the TSM4425CS RLG. Both devices share identical Vdss (30V), Vgs (±20V), operating temperature range (-55°C to 150°C), and 8-SOIC package configuration. No circuit modifications or board redesign are required for substitution.

Q: What are the advantages of substituting the TSM085P03CS RLG for the TSM4425CS RLG?

A: The TSM085P03CS RLG provides lower on-resistance (8.5 mOhm versus 12 mOhm), lower gate charge (56 nC versus 64 nC), and higher current rating (34A versus 11A). These characteristics result in reduced power dissipation, improved switching performance, and enhanced thermal margin. Additionally, the TSM085P03CS RLG is an Active product with assured supply availability, whereas the TSM4425CS RLG is Obsolete.

Q: Are there any thermal considerations when substituting the TSM085P03CS RLG?

A: The TSM085P03CS RLG has a higher power dissipation rating (14W at Tc versus 2.5W at Ta for the original part). In applications operating near thermal limits, the improved thermal characteristics of the substitute part provide additional design margin. Existing thermal management solutions designed for the TSM4425CS RLG remain adequate for the TSM085P03CS RLG.

Q: Do both devices have identical pin configurations?

A: Yes. Both the TSM4425CS RLG and TSM085P03CS RLG are packaged in 8-SOIC (0.154", 3.90mm Width) surface mount configuration with identical pin assignments. Direct board-level substitution is possible without PCB modifications.

Q: What is the moisture sensitivity level for both devices?

A: Both devices are rated MSL 1 (Unlimited), indicating unlimited shelf life under standard storage conditions. No special moisture control measures are required during handling, storage, or assembly.

Q: Are both devices RoHS and REACH compliant?

A: Yes. Both the TSM4425CS RLG and TSM085P03CS RLG are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the gate charge difference between the two devices, and does it affect circuit design?

A: The TSM085P03CS RLG has a gate charge of 56 nC at 10V, compared to 64 nC for the TSM4425CS RLG. This 8 nC reduction results in faster switching transitions and lower gate drive power requirements. Existing gate drive circuits designed for the TSM4425CS RLG will operate with improved performance margins when driving the TSM085P03CS RLG.

Q: Can the TSM085P03CS RLG be used in applications requiring the full 11A current specification of the original part?

A: Yes. The TSM085P03CS RLG is rated for 34A continuous drain current, providing substantial margin above the 11A requirement of the original design. The device will operate reliably at 11A with reduced on-resistance and improved thermal performance compared to the TSM4425CS RLG.