CSR2010FK50L0 Equivalent & Substitute Parts

Part Overview

The CSR2010FK50L0 is a 50 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, mechanical compatibility, and regulatory certifications align with the original component requirements.

Substiute Parts

CSR2010FK50L0

Stackpole Electronics IncIn Stock: 977CSR2010FK50L0 Datasheet

Current PartRFQ

CSRN2010FK50L0

Stackpole Electronics IncIn Stock: 18175CSRN2010FK50L0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR2010FK50L0 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: 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)
• RoHS3 compliance (regulatory requirement)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

The CSRN2010FK50L0 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 remain within acceptable tolerances for the 2010 package specification and do not affect functional equivalence in current sense applications.

Parameter Comparison

Engineering Selection Recommendations

Both CSR2010FK50L0 and CSRN2010FK50L0 maintain Active product status with identical regulatory compliance profiles. Selection between these parts should be based on availability and supply chain requirements. The CSRN2010FK50L0 variant demonstrates higher inventory availability (18,078 pcs vs 951 pcs), making it suitable for high-volume production scenarios. Both parts satisfy RoHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental regulations. The identical operating temperature range, package specification, and moisture sensitivity rating confirm functional interchangeability in current sense applications.

Frequently Asked Questions (FAQ)

Q: Can CSRN2010FK50L0 replace CSR2010FK50L0 in existing designs?

A: Yes. Both parts share identical resistance value (50 mOhms), tolerance (±1%), power rating (1W), package (2010), composition (Thick Film), and operating temperature range (-55°C ~ 155°C). The difference in temperature coefficient (±250ppm/°C vs ±100ppm/°C) does not affect substitution eligibility for current sense applications.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within the 2010 package specification. CSR2010FK50L0 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. Both dimensions remain within standard 2010 (5025 Metric) package tolerances and do not affect PCB layout compatibility.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both CSR2010FK50L0 and CSRN2010FK50L0 are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level is identical at 1 (Unlimited) for both parts.

Q: Which part should be selected for new designs?

A: Selection should be based on supply chain availability and production volume requirements. CSRN2010FK50L0 offers significantly higher inventory availability, making it preferable for high-volume applications. Both parts are functionally equivalent for current sense applications.