CSR1206FKR430 Equivalent & Substitute Parts

Part Overview

The CSR1206FKR430 is a 430 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 available, with 1165 units in current inventory. Substitute parts may be required due to supply chain constraints, regional availability, or specific application requirements such as automotive qualification or enhanced moisture resistance.

Substiute Parts

CSR1206FKR430

Stackpole Electronics IncIn Stock: 1227CSR1206FKR430 Datasheet

Current PartRFQ

RCWE1206R430FKEA

Vishay DaleIn Stock: 47015RCWE1206R430FKEA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206FKR430 is determined by the following critical parameters:

• Resistance Value: Must be 430 mOhms
• Tolerance: Must be ±1% or tighter
• Power Rating: Must be 0.5W or greater
• Package Type: Must be 1206 (3216 Metric)
• Composition: Thick film construction
• Temperature Coefficient: ±100ppm/°C or better
• Operating Temperature Range: Must cover -55°C to 155°C minimum
• Regulatory Compliance: ROHS3 compliant, REACH unaffected

The RCWE1206R430FKEA from Vishay Dale meets all substitution criteria and provides additional automotive AEC-Q200 qualification and moisture-resistant features, making it suitable for applications requiring enhanced reliability.

Parameter Comparison

Engineering Selection Recommendations

Both the CSR1206FKR430 and RCWE1206R430FKEA are active production parts meeting identical electrical specifications and regulatory requirements. The Stackpole CSR1206FKR430 is suitable for general industrial applications requiring current sensing with standard reliability. The Vishay Dale RCWE1206R430FKEA is qualified to AEC-Q200 automotive standards and includes moisture-resistant construction, making it the appropriate choice for automotive, harsh environment, or mission-critical applications where enhanced qualification and reliability are specified. Physical dimensions differ slightly within acceptable PCB layout tolerances for 1206 package applications.

Frequently Asked Questions (FAQ)

Q: Can RCWE1206R430FKEA replace CSR1206FKR430 in all applications?

A: Yes. The RCWE1206R430FKEA meets or exceeds all electrical and mechanical specifications of the CSR1206FKR430. The minor dimensional differences (0.002" length and width variance) are within standard 1206 package tolerances and do not affect PCB compatibility.

Q: What is the significance of AEC-Q200 qualification on the Vishay part?

A: AEC-Q200 is an automotive industry standard for discrete semiconductors and passive components. This qualification indicates the part has undergone rigorous testing for automotive applications, including thermal cycling, moisture resistance, and reliability validation. It is not required for non-automotive applications but provides additional assurance of quality and longevity.

Q: Are there any thermal performance differences between these parts?

A: Both parts have identical temperature coefficients (±100ppm/°C) and operating ranges (-55°C to 155°C). Thermal performance in circuit operation is equivalent.

Q: Do the dimensional differences affect PCB layout?

A: The dimensional variance is minimal (0.002" in length and width, 0.002" in height). Standard PCB design practices for 1206 components accommodate these tolerances. No layout modifications are required.

Q: What is the moisture sensitivity difference between these parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity concerns. The Vishay part includes additional moisture-resistant construction as a feature enhancement, but both parts perform identically in standard storage and handling conditions.