CSR1206JKR430 Equivalent & Substitute Parts

Part Overview

The CSR1206JKR430 is a 430 mOhms ±5% thick film chip resistor in 1206 (3216 Metric) package rated for 0.5W power dissipation. Manufactured by Stackpole Electronics Inc, this current sense resistor operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is active in production with 972 pieces currently in stock. Substitute parts may be required due to inventory constraints, design upgrades for improved tolerance specifications, or automotive qualification requirements.

Substiute Parts

CSR1206JKR430

Stackpole Electronics IncIn Stock: 1003CSR1206JKR430 Datasheet

Current PartRFQ

RCWE1206R430FKEA

Vishay DaleIn Stock: 47015RCWE1206R430FKEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CSR1206JKR430 is determined by the following critical parameters:

• Resistance Value: Must be 430 mOhms
• Package Type: Must be 1206 (3216 Metric)
• Power Rating: Must be 0.5W minimum
• Composition: Thick film construction
• Temperature Range: Must support -55°C to 155°C operation
• Compliance: ROHS3 compliance required

The RCWE1206R430FKEA qualifies as a direct substitute based on matching all critical parameters. The improved tolerance specification (±1% versus ±5%) and automotive AEC-Q200 qualification represent enhancements to the original specification without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RCWE1206R430FKEA is a qualified substitute for the CSR1206JKR430 in applications requiring 430 mOhms current sense resistors in 1206 package format. Both parts maintain identical electrical performance across the specified operating temperature range and meet ROHS3 compliance requirements.

Selection of the RCWE1206R430FKEA is appropriate for designs requiring improved tolerance accuracy (±1% versus ±5%) or automotive-grade reliability through AEC-Q200 qualification. The moisture-resistant construction provides additional environmental protection. Both parts are active in production with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the RCWE1206R430FKEA replace the CSR1206JKR430 in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package type, and operating temperature range. The substitute offers improved tolerance and automotive qualification without requiring circuit redesign.

Q: What is the significance of the ±1% tolerance improvement in the substitute part?

A: The RCWE1206R430FKEA tolerance of ±1% provides tighter resistance accuracy compared to the ±5% specification of the CSR1206JKR430. This reduces circuit performance variation in current sensing applications where precision is critical.

Q: Are there physical compatibility concerns between these parts?

A: Both parts use 1206 (3216 Metric) package with two terminations. Dimensional variations are minimal (0.002" length difference, 0.002" width difference, 0.002" height difference). Standard PCB layouts accommodate both parts without modification.

Q: What does AEC-Q200 qualification indicate?

A: AEC-Q200 is an automotive industry standard for passive component reliability. The RCWE1206R430FKEA meets this qualification, making it suitable for automotive applications requiring enhanced reliability and environmental stress testing compliance.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the CSR1206JKR430 and RCWE1206R430FKEA are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and regulatory requirements for commercial and industrial applications.