CSR1206FKR270 Equivalent & Substitute Parts

Part Overview

The CSR1206FKR270 is a 270 mOhms ±1% 0.5W thick film chip resistor in 1206 (3216 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 actively produced and widely stocked, with 1075 units available in inventory. Substitute parts are identified when original stock becomes unavailable, when supply chain constraints occur, or when design requirements necessitate alternative qualified sources meeting identical electrical and mechanical specifications.

Substiute Parts

CSR1206FKR270

Stackpole Electronics IncIn Stock: 1154CSR1206FKR270 Datasheet

Current PartRFQ

RCWE1206R270FKEA

Vishay DaleIn Stock: 47509RCWE1206R270FKEA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206FKR270 is determined by strict equivalence across the following critical parameters:

• Resistance value: 270 mOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Package: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Termination count: 2
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

The RCWE1206R270FKEA from Vishay Dale meets all electrical and mechanical requirements for direct substitution. Both parts share identical resistance, tolerance, power rating, package configuration, and thermal characteristics. Physical dimensions are within acceptable manufacturing tolerances for 1206 package specifications. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility in equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR1206FKR270 and RCWE1206R270FKEA are active production parts with full ROHS3 compliance and unlimited moisture sensitivity rating. The Stackpole CSR series is suitable for general industrial current sense applications. The Vishay Dale RCWE series includes AEC-Q200 automotive qualification, making it appropriate for automotive and high-reliability applications where additional qualification standards are required. Selection between these parts should be based on application requirements: use CSR1206FKR270 for standard industrial applications, and RCWE1206R270FKEA when automotive-grade reliability or AEC-Q200 compliance is specified. Both parts are electrically and mechanically interchangeable within the 1206 package footprint, with physical dimensions within standard manufacturing tolerances.

Frequently Asked Questions (FAQ)

Q: Can RCWE1206R270FKEA replace CSR1206FKR270 in any application?

A: Yes, the RCWE1206R270FKEA meets all electrical and mechanical specifications of the CSR1206FKR270. Both parts share identical resistance, tolerance, power rating, package, and operating temperature range. The RCWE series includes additional AEC-Q200 automotive qualification, making it suitable for applications requiring automotive-grade reliability.

Q: Are there physical compatibility concerns when substituting these parts?

A: Physical dimensions are within acceptable 1206 package tolerances. The RCWE1206R270FKEA dimensions (0.122" L x 0.063" W, 0.028" max height) are slightly larger than the CSR1206FKR270 (0.120" L x 0.061" W, 0.026" max height), but remain within standard 1206 specifications and will fit standard PCB footprints designed for 1206 components.

Q: What is the difference in packaging between these parts?

A: The CSR1206FKR270 is supplied in Tape & Reel (TR) packaging. The RCWE1206R270FKEA is supplied in Cut Tape (CT) & Digi-Reel® packaging. Both packaging formats are standard for 1206 chip resistors and do not affect component performance or PCB assembly compatibility.

Q: Are both parts RoHS compliant?

A: Yes, both the CSR1206FKR270 and RCWE1206R270FKEA are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with modern manufacturing and environmental standards.

Q: Which part should be selected for automotive applications?

A: The RCWE1206R270FKEA is qualified to AEC-Q200 automotive standards and is the appropriate choice for automotive applications. The CSR1206FKR270 is suitable for general industrial applications without automotive qualification requirements.