CSD25401Q3 Equivalent & Substitute Parts

Part Overview

The CSD25401Q3 is a P-Channel MOSFET manufactured by Texas Instruments, part of the NexFET™ series. This device is rated for 20V drain-to-source voltage with continuous drain current of 14A (Ta) and 60A (Tc), housed in an 8-VSON-CLIP surface mount package. The part is currently classified as Obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement planning. The CSD25401Q3 remains available with 70,300 pieces in current inventory stock.

Substiute Parts

CSD25401Q3

Texas InstrumentsIn Stock: 70395CSD25401Q3 Datasheet

Current PartRFQ

CSD25402Q3A

Texas InstrumentsIn Stock: 107981CSD25402Q3A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSD25401Q3 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Drain-to-Source Voltage (Vdss) must equal or exceed 20V
• Continuous drain current capability must meet or exceed application requirements
• On-resistance (Rds On) characteristics must be compatible with thermal and switching performance requirements
• Gate threshold voltage and gate charge must be within acceptable operating ranges
• Input capacitance must not introduce unacceptable switching delays

Mechanical Compatibility Criteria:

• Surface mount package type and footprint compatibility
• Operating temperature range must span -55°C to 150°C (TJ)
• Moisture sensitivity level and RoHS compliance status

The CSD25402Q3A qualifies as a direct substitute based on matching Vdss (20V), identical operating temperature range (-55°C to 150°C), equivalent RoHS3 compliance, and compatible surface mount packaging. The substitute demonstrates improved electrical performance characteristics while maintaining functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

CSD25402Q3A as Primary Substitute:

The CSD25402Q3A is the designated substitute for the obsolete CSD25401Q3. Both devices are manufactured by Texas Instruments within the NexFET™ series and share identical voltage ratings (20V Vdss) and operating temperature specifications (-55°C to 150°C TJ). Both components maintain ROHS3 compliance and MSL Level 1 moisture sensitivity ratings.

The CSD25402Q3A provides superior electrical performance through lower on-resistance (8.9 mOhm versus 11.7 mOhm at 10A, 4.5V) and reduced gate charge requirements (9.7 nC versus 12.3 nC at 4.5V). The substitute supports higher continuous drain current (76A Tc versus 60A Tc), enabling operation in higher-current applications. Enhanced thermal performance is available at case temperature (69W Tc versus unspecified Tc rating for the original part).

Package Consideration:

The CSD25401Q3 uses 8-VSON-CLIP (3.3x3.3) packaging, while the CSD25402Q3A uses 8-VSONP (3x3.3) packaging. Both are surface mount variants within the 8-pin VSON family. PCB layout verification is required to confirm footprint compatibility before design implementation.

Product Status Impact:

The CSD25401Q3 is classified as Obsolete. The CSD25402Q3A maintains Active product status with 107,900 pieces currently in inventory, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the CSD25402Q3A directly replace the CSD25401Q3 in existing designs?

A: The CSD25402Q3A is electrically compatible as a substitute based on matching Vdss (20V), identical operating temperature range, and equivalent compliance certifications. However, the package footprint differs (8-VSON-CLIP versus 8-VSONP). PCB layout verification is required to confirm physical compatibility before implementation.

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

A: The CSD25402Q3A provides improved performance: lower on-resistance (8.9 mOhm versus 11.7 mOhm), reduced gate charge (9.7 nC versus 12.3 nC), and higher continuous drain current capability (76A Tc versus 60A Tc). Input capacitance is higher in the substitute (1790 pF versus 1400 pF), which may affect switching characteristics in high-frequency applications.

Q: Why is the CSD25401Q3 listed as Obsolete?

A: The CSD25401Q3 has reached end-of-life status within Texas Instruments' product portfolio. The CSD25402Q3A represents the active replacement offering superior electrical performance and ongoing manufacturing support.

Q: Are both parts RoHS compliant?

A: Yes. Both the CSD25401Q3 and CSD25402Q3A are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings, meeting equivalent environmental and regulatory requirements.

Q: What should be verified before switching to the CSD25402Q3A?

A: Verification should include: (1) PCB footprint compatibility between 8-VSON-CLIP and 8-VSONP packages, (2) gate drive circuit compatibility with the lower gate charge requirement (9.7 nC), (3) thermal management adequacy for the higher input capacitance (1790 pF), and (4) functional testing in the target application to confirm performance equivalence.