CSR2010FK25L0 Equivalent & Substitute Parts

Part Overview

The CSR2010FK25L0 is a 25 mOhms ±1% 1W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This current sense thick film resistor is designed for precision low-resistance applications requiring stable performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

CSR2010FK25L0

Stackpole Electronics IncIn Stock: 1129CSR2010FK25L0 Datasheet

Current PartRFQ

CSRN2010FK25L0

Stackpole Electronics IncIn Stock: 6711CSRN2010FK25L0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR2010FK25L0 is determined by the following critical parameters:

• Resistance value: 25 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Package: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Features: Current Sense (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• RoHS3 compliance (required for regulatory equivalence)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

The CSRN2010FK25L0 qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Variations in temperature coefficient (±100ppm/°C vs ±250ppm/°C) and physical dimensions within the 2010 package envelope do not disqualify substitution for standard current sense applications.

Parameter Comparison

Engineering Selection Recommendations

Both CSR2010FK25L0 and CSRN2010FK25L0 maintain Active product status and full regulatory compliance under RoHS3 and REACH standards. Selection between these parts should be based on application-specific requirements for temperature coefficient stability. The CSR2010FK25L0 offers tighter temperature coefficient performance at ±100ppm/°C, while the CSRN2010FK25L0 operates at ±250ppm/°C. Both parts are suitable for current sense applications in the specified operating temperature range of -55°C to 155°C. Inventory availability and procurement lead times may also influence part selection.

Frequently Asked Questions (FAQ)

Q: Can CSRN2010FK25L0 be used as a direct replacement for CSR2010FK25L0?

A: Yes. Both parts share identical resistance (25 mOhms), tolerance (±1%), power rating (1W), package (2010), composition (Thick Film), and operating temperature range (-55°C ~ 155°C). The difference in temperature coefficient does not prevent substitution for standard current sense applications.

Q: What is the significance of the temperature coefficient difference?

A: The CSR2010FK25L0 has a temperature coefficient of ±100ppm/°C, while the CSRN2010FK25L0 has ±250ppm/°C. This means the CSR2010FK25L0 exhibits smaller resistance changes across temperature variations. Applications requiring maximum stability across the full operating range should prioritize the tighter specification.

Q: Are the physical dimensions identical between these parts?

A: Both parts conform to the 2010 (5025 Metric) package standard. Minor variations exist within the package envelope: CSR2010FK25L0 measures 0.197" L x 0.100" W with 0.026" max height, while CSRN2010FK25L0 measures 0.197" L x 0.097" W with 0.030" max height. These variations remain within standard 2010 package tolerances and do not affect PCB layout compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both CSR2010FK25L0 and CSRN2010FK25L0 are ROHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating. They are functionally equivalent from a compliance perspective.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For applications where temperature stability is critical, CSR2010FK25L0 is preferred. For general current sense applications where the wider temperature coefficient is acceptable, either part is suitable. Consult application-specific design requirements and procurement availability.