CSR0805FTR680 Equivalent & Substitute Parts

Part Overview

The CSR0805FTR680 is a 680 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 maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when component availability is constrained or supply chain requirements necessitate alternative sourcing from qualified manufacturers.

Substiute Parts

CSR0805FTR680

Stackpole Electronics IncIn Stock: 1103CSR0805FTR680 Datasheet

Current PartRFQ

RLP73K2AR68FTDF

TE Connectivity Passive ProductIn Stock: 4541RLP73K2AR68FTDF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR0805FTR680 is determined by strict equivalence across the following critical parameters:

• Resistance value: 680 mOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

Only parts matching all specified electrical and mechanical parameters are classified as direct substitutes. Manufacturer differences do not affect substitution validity when all parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR0805FTR680 and RLP73K2AR68FTDF maintain Active product status with identical electrical specifications, mechanical dimensions, and regulatory compliance profiles. Selection between these parts is based on supply chain availability and procurement requirements rather than technical performance differences. Both parts satisfy ROHS3 compliance, REACH unaffected status, and EAR99 export classification. The identical moisture sensitivity level (MSL 1 - Unlimited) and operating temperature range ensure interchangeability in all specified applications without design modification or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can RLP73K2AR68FTDF replace CSR0805FTR680 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. Direct substitution is valid without circuit redesign or performance impact.

Q: Are there differences in current sense accuracy between these parts?

A: No. Both parts share identical tolerance (±1%), temperature coefficient (±200ppm/°C), and composition (Thick Film), ensuring equivalent current sensing performance.

Q: Do these parts require different PCB footprints?

A: No. Both parts use the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W) and height (0.026" max). PCB footprints are interchangeable.

Q: What is the significance of the ±200ppm/°C temperature coefficient?

A: This parameter defines resistance drift over the -55°C to 155°C operating range. Both parts maintain this specification, ensuring stable current sensing performance across the full temperature range.

Q: Are moisture handling procedures identical for both parts?

A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Identical storage and handling protocols apply.

Q: Can these parts be mixed in the same production batch?

A: Yes. Identical electrical specifications, package dimensions, and compliance certifications permit interchangeable use within the same assembly.