CSS2728FT4L00 Equivalent & Substitute Parts

Part Overview

The CSS2728FT4L00 is a 4 milliohm, ±1% tolerance, 3-watt chip resistor manufactured by Stackpole Electronics Inc. This metal element current sense resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is housed in a Wide 2827 (7067 Metric) package with 2728 footprint specifications. Finding equivalent or substitute parts may be necessary due to inventory constraints, supply chain considerations, or application requirements for higher power ratings.

Substiute Parts

CSS2728FT4L00

Stackpole Electronics IncIn Stock: 1232CSS2728FT4L00 Datasheet

Current PartRFQ

CSSH2728FT4L00

Stackpole Electronics IncIn Stock: 2177CSSH2728FT4L00 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSS2728FT4L00 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Resistance value: 4 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Element (exact match required)
• Package / Case: Wide 2827 (7067 Metric), 2728 (exact match required)
• Temperature Coefficient: ±25ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 225°C (exact match required)
• Automotive Rating: AEC-Q200 (exact match required)

Allowable Variation Parameter:

• Power Rating: The CSS2728FT4L00 (3W) may be substituted with the CSSH2728FT4L00 (4W). The higher power rating of the substitute part maintains full compatibility while providing increased thermal capacity.

The CSSH2728FT4L00 meets all critical parameter requirements and offers an upgrade path with enhanced power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

Both the CSS2728FT4L00 and CSSH2728FT4L00 are active products from Stackpole Electronics Inc with full AEC-Q200 automotive qualification. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for automotive applications.

The CSSH2728FT4L00 provides a direct upgrade path with identical electrical and mechanical specifications except for increased power dissipation capability (4W versus 3W). This higher power rating does not compromise any other performance characteristics and maintains the same physical footprint and thermal coefficient.

Selection between these parts should be based on application power dissipation requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the CSSH2728FT4L00 (4W) be used as a direct replacement for the CSS2728FT4L00 (3W)?

A: Yes. The CSSH2728FT4L00 maintains identical resistance, tolerance, composition, package dimensions, temperature coefficient, and operating temperature range. The increased power rating (4W) is a performance enhancement that does not affect electrical or mechanical compatibility.

Q: Are the physical dimensions identical between CSS2728FT4L00 and CSSH2728FT4L00?

A: Yes. Both parts use the Wide 2827 (7067 Metric) package with 2728 footprint. Dimensions are 0.264" L x 0.283" W (6.71mm x 7.19mm) with a maximum seated height of 0.049" (1.24mm). PCB layout and assembly considerations remain unchanged.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both CSS2728FT4L00 and CSSH2728FT4L00 carry AEC-Q200 qualification and are suitable for automotive applications across the -55°C to 225°C operating temperature range.

Q: What is the significance of the metal element composition for these current sense resistors?

A: Metal element construction provides the low resistance values (4 mOhms) required for current sensing applications while maintaining tight tolerance (±1%) and stable temperature coefficient (±25ppm/°C) across the automotive temperature range.

Q: Are there any moisture sensitivity concerns with these parts?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity limitations for storage, handling, or assembly processes.