CSR2010FT50L0 Equivalent & Substitute Parts

Part Overview

The CSR2010FT50L0 is a 50 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 inventory constraints, lead time requirements, or supply chain disruptions necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

CSR2010FT50L0

Stackpole Electronics IncIn Stock: 729CSR2010FT50L0 Datasheet

Current PartRFQ

CSRN2010FK50L0

Stackpole Electronics IncIn Stock: 18175CSRN2010FK50L0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR2010FT50L0 is determined by the following critical parameters:

• Resistance value: 50 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Package / Case: 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 (minimum requirement)
• RoHS compliance: ROHS3 Compliant (required)

The CSRN2010FK50L0 qualifies as a direct substitute based on matching all critical electrical specifications and package requirements. Variations in temperature coefficient and physical dimensions within tolerance do not preclude substitution when the primary functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both CSR2010FT50L0 and CSRN2010FK50L0 maintain Active product status from Stackpole Electronics Inc and satisfy ROHS3 compliance requirements. Selection between these parts should be based on availability and supply chain considerations. The CSRN2010FK50L0 variant exhibits a higher temperature coefficient (±250ppm/°C versus ±100ppm/°C), which may introduce marginally greater resistance drift across the operating temperature range. Applications requiring tighter temperature stability should prioritize the CSR2010FT50L0. Both parts are suitable for current sense applications in the specified temperature range and meet identical electrical and mechanical interface requirements.

Frequently Asked Questions (FAQ)

Q: Can CSRN2010FK50L0 be used as a direct replacement for CSR2010FT50L0?

A: Yes. Both parts share identical resistance, tolerance, power rating, package, and composition specifications. The primary difference is temperature coefficient; the CSRN variant exhibits ±250ppm/°C versus ±100ppm/°C for the CSR variant.

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

A: Temperature coefficient defines how much the resistance value changes per degree Celsius within the operating range. The CSR2010FT50L0 with ±100ppm/°C provides tighter resistance stability across temperature extremes compared to the CSRN2010FK50L0 at ±250ppm/°C. For precision current sensing applications, this difference may be relevant depending on circuit tolerance requirements.

Q: Are the physical dimensions identical between these parts?

A: Both parts conform to the 2010 (5025 Metric) package standard. Minor dimensional variations exist: CSR2010FT50L0 measures 0.197" L x 0.100" W with 0.026" max height; CSRN2010FK50L0 measures 0.197" L x 0.097" W with 0.030" max height. These variations remain within standard package tolerances and do not affect PCB layout or assembly compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CSR2010FT50L0 and CSRN2010FK50L0 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level is 1 (Unlimited) for both parts.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements and supply availability. For applications requiring maximum temperature stability, CSR2010FT50L0 is preferred. For general current sense applications where the higher temperature coefficient is acceptable, either part is suitable based on inventory and lead time considerations.