CSRF2010FK1L00 Equivalent & Substitute Parts

Part Overview

The CSRF2010FK1L00 is a 1 mOhms ±1% 1W chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This metal foil current sense resistor features moisture resistance and operates across -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for current sense applications.

Substiute Parts

CSRF2010FK1L00

Stackpole Electronics IncIn Stock: 813CSRF2010FK1L00 Datasheet

Current PartRFQ

CSNL2010FT1L00

Stackpole Electronics IncIn Stock: 24621CSNL2010FT1L00 Datasheet

UpgradeRFQ

PMR50HZPFV1L00

Rohm SemiconductorIn Stock: 13858PMR50HZPFV1L00 Datasheet

MFR RecommendedRFQ

TLR2H15DR001FTDG

TE Connectivity Passive ProductIn Stock: 14575TLR2H15DR001FTDG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

• Resistance value: 1 mOhms ±1%
• Package type: 2010 (5025 Metric)
• Tolerance: ±1%
• Current sense application capability
• RoHS3 compliance and MSL 1 rating

Three active alternatives meet these core electrical and mechanical requirements. Substitutes may vary in power rating (1W or 1.5W), composition (metal foil or metal element), temperature coefficient, and maximum operating temperature, provided the 2010 package and electrical specifications remain constant.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts maintain the core electrical specifications (1 mOhms, ±1% tolerance) and 2010 package compatibility required for direct substitution. Selection should be based on application-specific requirements:

CSNL2010FT1L00 provides a direct Stackpole alternative with increased power rating (1.5W) and extended temperature range (-55°C to 170°C), maintaining metal element composition with ±50ppm/°C temperature coefficient.

PMR50HZPFV1L00 from Rohm Semiconductor matches the original 1W power rating and metal element composition, with AEC-Q200 automotive qualification and ±100ppm/°C temperature coefficient, suitable for automotive current sense applications.

TLR2H15DR001FTDG from TE Connectivity preserves the metal foil composition of the original part with 1.5W power rating and ±50ppm/°C temperature coefficient, extending operating temperature to 170°C.

Frequently Asked Questions (FAQ)

Q: Can CSNL2010FT1L00 replace CSRF2010FK1L00 in all applications?

A: Yes, provided the application does not require the specific metal foil composition. CSNL2010FT1L00 uses metal element composition but maintains identical resistance, tolerance, package, and current sense capability. The higher power rating (1.5W vs 1W) and extended temperature range offer additional design margin.

Q: What is the difference between metal foil and metal element composition?

A: Both compositions are provided in the input data. Metal foil (CSRF2010FK1L00, TLR2H15DR001FTDG) and metal element (CSNL2010FT1L00, PMR50HZPFV1L00) are distinct manufacturing technologies. Selection depends on application requirements not specified in this reference.

Q: Is PMR50HZPFV1L00 suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification indicates automotive-grade reliability and is not restrictive for general industrial or consumer applications. The part meets all electrical and mechanical requirements for current sense applications.

Q: Do all substitutes fit the same PCB footprint?

A: All parts use the 2010 (5025 Metric) package. Physical dimensions vary slightly (length 0.197" to 0.201", height 0.019" to 0.041"), but remain within standard 2010 package tolerances. Verify PCB layout clearances for height-sensitive applications.

Q: What is the temperature coefficient significance?

A: Temperature coefficient indicates resistance change per degree Celsius. CSNL2010FT1L00 and TLR2H15DR001FTDG specify ±50ppm/°C; PMR50HZPFV1L00 specifies ±100ppm/°C. The original CSRF2010FK1L00 does not specify this parameter. Lower coefficients provide better stability across temperature extremes.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All four parts (original and three substitutes) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and reliability standards.