CSR2010FT40L0 Equivalent & Substitute Parts

Part Overview

The CSR2010FT40L0 is a 40 mOhms ±1% 1W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This current sense thick film resistor operates across -55°C to 155°C and is designed for precision current measurement applications. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

CSR2010FT40L0

Stackpole Electronics IncIn Stock: 1170CSR2010FT40L0 Datasheet

Current PartRFQ

CSRN2010FK40L0

Stackpole Electronics IncIn Stock: 6847CSRN2010FK40L0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR2010FT40L0 is determined by the following critical parameters:

• Resistance value: 40 mOhms
• Tolerance: ±1%
• Power rating: 1W
• Package type: 2010 (5025 Metric)
• Composition: Thick Film
• Application feature: Current Sense
• Operating temperature range: -55°C ~ 155°C minimum
• Compliance: ROHS3 Compliant

The CSRN2010FK40L0 qualifies as a direct substitute because it maintains identical electrical specifications (40 mOhms ±1%, 1W), operates within the same temperature range, uses the same package format, and meets equivalent compliance requirements. Variations in temperature coefficient and physical dimensions remain within acceptable mechanical tolerances for the 2010 package category.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR2010FT40L0 and CSRN2010FK40L0 maintain Active product status from Stackpole Electronics Inc and satisfy ROHS3 compliance requirements. Selection between these parts should be based on availability and application-specific thermal stability requirements. The CSR2010FT40L0 features a tighter temperature coefficient of ±100ppm/°C, while the CSRN2010FK40L0 operates at ±250ppm/°C. For applications requiring maximum temperature stability across the full -55°C to 155°C operating range, the CSR2010FT40L0 is the primary choice. The CSRN2010FK40L0 serves as a functional equivalent when the primary part is unavailable, provided the application tolerates the wider temperature coefficient specification.

Frequently Asked Questions (FAQ)

Q: Can CSRN2010FK40L0 be used as a direct replacement for CSR2010FT40L0?

A: Yes. Both parts share identical resistance (40 mOhms), tolerance (±1%), power rating (1W), package format (2010), and operating temperature range (-55°C ~ 155°C). The primary difference is temperature coefficient specification (±100ppm/°C vs ±250ppm/°C). Substitution is valid when application requirements permit the wider temperature coefficient of the CSRN2010FK40L0.

Q: Are there physical compatibility concerns between these parts?

A: Both parts use the 2010 (5025 Metric) package with 2 terminations. Physical dimensions vary slightly (length 0.197" for both; width 0.100" vs 0.097"; height 0.026" vs 0.030"), but these differences remain within standard 2010 package tolerances and do not affect PCB footprint compatibility.

Q: What compliance certifications apply to both parts?

A: Both CSR2010FT40L0 and CSRN2010FK40L0 are ROHS3 compliant, REACH unaffected, classified as EAR99, and carry HTSUS code 8533.21.0030. Moisture sensitivity level is 1 (Unlimited) for both parts.

Q: Which part should be selected for high-precision current sensing applications?

A: The CSR2010FT40L0 is recommended for applications requiring maximum temperature stability due to its ±100ppm/°C temperature coefficient. The CSRN2010FK40L0 is suitable when the ±250ppm/°C specification meets application requirements and the primary part is unavailable.