RLP73N2AR20FTDF Equivalent & Substitute Parts

Part Overview

The RLP73N2AR20FTDF is a 200 mOhms ±1% thick film chip resistor manufactured by TE Connectivity Passive Product, designed for current sensing applications in 0805 (2012 Metric) package format. This component operates at 0.25W (1/4W) power rating and is classified as Active product status. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

RLP73N2AR20FTDF

TE Connectivity Passive ProductIn Stock: 2190RLP73N2AR20FTDF Datasheet

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CSR0805FKR200

Stackpole Electronics IncIn Stock: 22147CSR0805FKR200 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RLP73N2AR20FTDF is determined by strict alignment of the following parameters:

Electrical Specifications: Resistance value (200 mOhms), tolerance (±1%), and power rating (0.25W) must be identical. Current sense functionality must be maintained.

Mechanical Compatibility: Package type (0805 / 2012 Metric), physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm), and seated height (0.026" / 0.65mm maximum) must match to ensure PCB footprint compatibility and assembly process compatibility.

Environmental & Compliance Requirements: Operating temperature range (-55°C ~ 155°C), RoHS3 compliance, MSL rating (1 - Unlimited), and REACH status must be equivalent or superior to the original component.

Composition & Construction: Thick film construction and current sense application classification must be preserved.

The CSR0805FKR200 from Stackpole Electronics Inc meets all substitution criteria for the RLP73N2AR20FTDF.

Parameter Comparison

Engineering Selection Recommendations

The CSR0805FKR200 (Stackpole Electronics Inc) is a direct substitute for the RLP73N2AR20FTDF (TE Connectivity Passive Product). Both components are Active product status and meet identical electrical, mechanical, and compliance requirements.

Compliance Alignment: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited moisture sensitivity), confirming suitability for standard manufacturing and storage environments.

Performance Consideration: The CSR0805FKR200 exhibits a temperature coefficient of ±200ppm/°C compared to the RLP73N2AR20FTDF at ±300ppm/°C. This represents improved temperature stability in the substitute part, providing equivalent or superior performance across the -55°C ~ 155°C operating range.

Mechanical & Electrical Equivalence: Identical resistance (200 mOhms), tolerance (±1%), power rating (0.25W), package dimensions (0805 / 2.00mm x 1.25mm), and current sense functionality ensure direct PCB footprint compatibility and circuit performance equivalence.

Selection between these components may be based on supplier availability, lead time, inventory position, or procurement cost, as no functional or compliance disadvantage exists with either choice.

Frequently Asked Questions (FAQ)

Q: Can the CSR0805FKR200 be used as a direct replacement for the RLP73N2AR20FTDF in existing designs?

A: Yes. Both components share identical electrical specifications (200 mOhms ±1%, 0.25W), mechanical dimensions (0805 package, 2.00mm x 1.25mm), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, REACH unaffected). Direct substitution is supported without circuit redesign.

Q: Are there any differences in temperature performance between these two parts?

A: The CSR0805FKR200 has a temperature coefficient of ±200ppm/°C, while the RLP73N2AR20FTDF has ±300ppm/°C. The substitute part exhibits superior temperature stability. Both operate within the identical -55°C ~ 155°C range.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both the RLP73N2AR20FTDF and CSR0805FKR200 carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: Are the physical dimensions identical for PCB assembly compatibility?

A: Yes. Both components are 0805 (2012 Metric) package format with dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.026" (0.65mm). PCB footprints and pick-and-place assembly parameters are identical.

Q: What is the primary application for these current sense resistors?

A: Both components are designed for current sensing applications, utilizing thick film construction to provide accurate resistance values for current measurement circuits across industrial, automotive, and consumer electronics applications.

Q: Are both parts available in Tape & Reel packaging?

A: Yes. Both the RLP73N2AR20FTDF and CSR0805FKR200 are supplied in Tape & Reel (TR) packaging format, suitable for automated assembly processes.

Q: Do these parts comply with RoHS and REACH regulations?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for European and global markets.