RLP73N2AR22FTDF Equivalent & Substitute Parts

Part Overview

The RLP73N2AR22FTDF is a 220 mOhms ±1% thick film chip resistor manufactured by TE Connectivity Passive Product, rated for 0.25W (1/4W) power dissipation in a 0805 (2012 Metric) surface mount package. This component is designed for current sense applications and is classified as Active product status. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and functional requirements align with the original component, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

RLP73N2AR22FTDF

TE Connectivity Passive ProductIn Stock: 1307RLP73N2AR22FTDF Datasheet

Current PartRFQ

RCWE0805R220FKEA

Vishay DaleIn Stock: 5374RCWE0805R220FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RLP73N2AR22FTDF is determined by strict alignment of the following parameters:

Electrical Specifications:

• Resistance value: 220 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W minimum (equal or greater acceptable)
• Operating temperature range: -55°C to 155°C minimum (equal or wider range acceptable)

Mechanical Specifications:

• Package: 0805 (2012 Metric) surface mount (exact match required)
• Number of terminations: 2 (exact match required)
• Physical dimensions compatible with 0805 footprint

Compliance & Environmental:

• RoHS3 Compliant (required)
• Moisture Sensitivity Level: MSL 1 or better (required)
• Composition: Thick Film (required for current sense application)

The RCWE0805R220FKEA from Vishay Dale meets all substitution criteria and qualifies as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the RLP73N2AR22FTDF and RCWE0805R220FKEA are Active product status components that satisfy the core electrical and mechanical requirements for 220 mOhms ±1% current sense resistor applications in 0805 package format.

RLP73N2AR22FTDF (TE Connectivity RL73 Series):

• Suitable for general current sense applications
• Temperature coefficient: ±300ppm/°C
• ROHS3 Compliant, MSL 1 rated
• Established supply availability

RCWE0805R220FKEA (Vishay Dale RCWE Series):

• Automotive AEC-Q200 qualified component
• Temperature coefficient: ±100ppm/°C (superior stability)
• Moisture resistant thick film construction
• ROHS3 Compliant, MSL 1 rated
• Enhanced performance characteristics for demanding applications

Selection between these components depends on application requirements. The RCWE0805R220FKEA provides automotive-grade qualification and improved temperature stability. Both components are electrically and mechanically interchangeable within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can RCWE0805R220FKEA replace RLP73N2AR22FTDF in existing designs?

A: Yes. Both components share identical resistance (220 mOhms), tolerance (±1%), power rating (0.25W), package (0805), and operating temperature range (-55°C to 155°C). Physical dimensions are compatible with 0805 footprints. Both are ROHS3 Compliant and MSL 1 rated.

Q: What is the difference in temperature coefficient between these parts?

A: The RLP73N2AR22FTDF has a temperature coefficient of ±300ppm/°C, while the RCWE0805R220FKEA has ±100ppm/°C. The lower coefficient in the Vishay Dale component indicates superior temperature stability across the operating range.

Q: Are there dimensional compatibility concerns?

A: Both components are 0805 (2012 Metric) package type with identical length (0.079" / 2.00mm) and height (0.026" / 0.65mm). Width differs slightly (1.25mm vs. 1.30mm), which remains within standard 0805 footprint tolerances and presents no PCB layout compatibility issues.

Q: Does the RCWE0805R220FKEA automotive qualification affect general-purpose applications?

A: No. AEC-Q200 qualification indicates the component meets automotive reliability standards and is suitable for use in any application requiring equivalent or lower reliability specifications. Automotive-qualified components are fully compatible with non-automotive designs.

Q: What is the significance of "moisture resistant" in the RCWE0805R220FKEA specification?

A: Both components are rated MSL 1 (Unlimited moisture sensitivity level), indicating no moisture-related handling restrictions. The moisture resistant thick film construction in the Vishay Dale component provides additional protection in high-humidity environments but does not alter substitution eligibility.

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

A: Yes. Both RLP73N2AR22FTDF and RCWE0805R220FKEA are supplied in Tape & Reel (TR) format, standard for automated assembly processes.