CSS2725JTL250 Equivalent & Substitute Parts

Part Overview

The CSS2725JTL250 is a 0.25 mOhms ±5% 4W chip resistor manufactured by Stackpole Electronics Inc. This nonstandard current sense metal element resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is actively produced and maintained in inventory, with 957 units currently available. Substitute parts are identified when design requirements permit tolerance relaxation or when inventory availability necessitates alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

CSS2725JTL250

Stackpole Electronics IncIn Stock: 1004CSS2725JTL250 Datasheet

Current PartRFQ

CSS2725FTL250

Stackpole Electronics IncIn Stock: 4701CSS2725FTL250 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CSS2725JTL250 is permitted with the CSS2725FTL250 based on the following criteria:

Maintained Parameters (Identical):

• Resistance value: 0.25 mOhms
• Power rating: 4W
• Composition: Metal Element
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C to 225°C
• Package type: Nonstandard 2725
• Automotive rating: AEC-Q200
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)
• Number of terminations: 2

Allowed Variation:

• Tolerance: ±5% (CSS2725JTL250) to ±1% (CSS2725FTL250)

The CSS2725FTL250 provides improved tolerance specification while maintaining all other electrical and mechanical characteristics. This substitution is valid for applications where tighter tolerance is acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

Both CSS2725JTL250 and CSS2725FTL250 are active products from Stackpole Electronics Inc with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts should be based on tolerance requirements and inventory availability.

The CSS2725JTL250 with ±5% tolerance is suitable for applications where standard tolerance specifications are acceptable. The CSS2725FTL250 with ±1% tolerance provides improved accuracy for precision current sensing applications and is available in significantly higher inventory quantities (4683 units versus 957 units).

Both parts maintain identical electrical performance characteristics including temperature coefficient, operating temperature range, and power dissipation capability. Physical dimensions and package compatibility are equivalent, with only minor height variation (1.24mm maximum seated height for CSS2725JTL250 versus 1.34mm for CSS2725FTL250).

Frequently Asked Questions (FAQ)

Q: Can CSS2725FTL250 replace CSS2725JTL250 in existing designs?

A: Yes. The CSS2725FTL250 maintains all critical electrical and mechanical parameters. The tolerance improvement from ±5% to ±1% is a beneficial change that does not require design modification. Physical package compatibility is maintained with negligible height difference (0.1mm).

Q: What is the primary difference between these two parts?

A: The tolerance specification differs. CSS2725JTL250 is specified at ±5%, while CSS2725FTL250 is specified at ±1%. All other parameters including resistance value, power rating, temperature range, and automotive qualification are identical.

Q: Are both parts AEC-Q200 qualified?

A: Yes. Both CSS2725JTL250 and CSS2725FTL250 carry AEC-Q200 automotive qualification and are suitable for automotive current sensing applications.

Q: What is the package compatibility between these parts?

A: Both parts use the nonstandard 2725 package with identical footprint dimensions of 0.268" L x 0.254" W (6.81mm x 6.45mm). Seated height differs by 0.004" (0.1mm), which does not affect PCB assembly compatibility.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited). Regulatory and environmental compliance is equivalent.