CSR0805FKR620 Equivalent & Substitute Parts

Part Overview

The CSR0805FKR620 is a 620 mOhms ±1% 0.25W thick film chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This current sense resistor is designed for precision low-resistance applications requiring tight tolerance and stable performance across industrial temperature ranges. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts may be required due to inventory constraints, supply chain disruptions, or specific application requirements such as automotive qualification or enhanced moisture resistance.

Substiute Parts

CSR0805FKR620

Stackpole Electronics IncIn Stock: 2072CSR0805FKR620 Datasheet

Current PartRFQ

RLP73K2AR62FTDF

TE Connectivity Passive ProductIn Stock: 4739RLP73K2AR62FTDF Datasheet

DirectRFQ

RCWE0805R620FKEA

Vishay DaleIn Stock: 9835RCWE0805R620FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR0805FKR620 is determined by the following critical parameters:

• Resistance value: 620 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Operating temperature range: -55°C ~ 155°C (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)
• RoHS compliance: ROHS3 (minimum requirement)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in temperature coefficient and additional features (such as automotive qualification) represent enhancements rather than deviations from the base specification.

Parameter Comparison

Engineering Selection Recommendations

All three parts are Active status and ROHS3 compliant, ensuring regulatory compliance and ongoing manufacturer support.

CSR0805FKR620 (Stackpole Electronics Inc): Primary specification. Suitable for general current sense applications with standard industrial requirements.

RLP73K2AR62FTDF (TE Connectivity Passive Product): Direct equivalent with identical electrical specifications. Appropriate for applications where TE Connectivity supply chain integration is preferred or where inventory availability is a determining factor.

RCWE0805R620FKEA (Vishay Dale): Enhanced specification with AEC-Q200 automotive qualification and moisture-resistant construction. Temperature coefficient of ±100ppm/°C provides superior stability compared to the base specification of ±200ppm/°C. Suitable for automotive applications, high-reliability systems, or environments requiring enhanced moisture resistance.

Frequently Asked Questions (FAQ)

Q: Can RCWE0805R620FKEA be used as a direct replacement for CSR0805FKR620?

A: Yes. The RCWE0805R620FKEA meets all core electrical and mechanical parameters of the CSR0805FKR620. The enhanced temperature coefficient (±100ppm/°C vs ±200ppm/°C) and automotive qualification represent performance improvements rather than incompatibilities.

Q: Are there any dimensional differences between these parts?

A: All parts use the 0805 (2012 Metric) package. The CSR0805FKR620 and RLP73K2AR62FTDF have identical dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). The RCWE0805R620FKEA has a width of 0.051" (1.30mm) compared to 0.049" (1.25mm) for the other two parts. All three have identical height of 0.026" (0.65mm) when seated. These dimensional variations remain within standard 0805 package tolerances and do not affect PCB footprint compatibility.

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

A: The RCWE0805R620FKEA has a temperature coefficient of ±100ppm/°C, while the CSR0805FKR620 and RLP73K2AR62FTDF have ±200ppm/°C. A lower temperature coefficient indicates better resistance stability across temperature variations. For precision current sensing applications operating across wide temperature ranges, the RCWE0805R620FKEA provides superior performance.

Q: Is AEC-Q200 qualification required for my application?

A: AEC-Q200 qualification is specific to automotive applications. If your design is for automotive use or requires automotive-grade reliability standards, the RCWE0805R620FKEA is the appropriate selection. For non-automotive applications, all three parts are functionally equivalent.

Q: Are all parts RoHS3 compliant?

A: Yes. All three parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting modern environmental and regulatory requirements.