S3-680RJ8 Equivalent & Substitute Parts

Part Overview

The S3-680RJ8 is a 680 Ohms ±5% 3W wirewound chip resistor manufactured by Riedon in the 6327 J-Lead package. This component is designed for current sensing applications and features flame proof, moisture resistant, and pulse withstanding characteristics. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring high reliability and environmental protection.

Substitute parts are identified when electrical and mechanical parameters remain within acceptable tolerances for the application, allowing for component interchangeability while maintaining circuit performance and compliance requirements.

Substiute Parts

S3-680RJ8

RiedonIn Stock: 926S3-680RJ8 Datasheet

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S3-680RF1

RiedonIn Stock: 1504S3-680RF1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The S3-680RF1 qualifies as a substitute for the S3-680RJ8 based on the following criteria:

Matching Parameters:

• Resistance value: 680 Ohms (identical)
• Power rating: 3W (identical)
• Composition: Wirewound (identical)
• Package / Case: 6327 J-Lead (identical)
• Physical dimensions: 0.626" L x 0.272" W, 0.268" height (identical)
• Operating temperature range: -55°C ~ 275°C (identical)
• Temperature coefficient: ±20ppm/°C (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Tolerance Difference: The S3-680RF1 provides ±1% tolerance compared to the ±5% tolerance of the S3-680RJ8. This represents an upgrade in precision while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the S3-680RJ8 and S3-680RF1 maintain Active product status with ROHS3 compliance and identical environmental specifications. The S3-680RF1 offers improved tolerance performance at ±1% versus ±5%, while preserving all mechanical, thermal, and compliance characteristics. Selection between these parts depends on circuit tolerance requirements and application precision demands. Both parts are suitable for current sensing applications requiring flame proof, moisture resistant, and pulse withstanding characteristics across the full operating temperature range of -55°C to 275°C.

Frequently Asked Questions (FAQ)

Q: Can S3-680RF1 replace S3-680RJ8 in existing designs? A: Yes. The S3-680RF1 is mechanically and electrically compatible with identical package dimensions, power rating, resistance value, and operating temperature range. The improved ±1% tolerance of the S3-680RF1 provides enhanced precision without requiring design modifications.

Q: What is the primary difference between these parts? A: The tolerance specification differs. S3-680RJ8 has ±5% tolerance while S3-680RF1 has ±1% tolerance. All other parameters including resistance, power rating, package type, and thermal characteristics remain identical.

Q: Are both parts ROHS3 compliant? A: Yes. Both S3-680RJ8 and S3-680RF1 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), suitable for applications requiring environmental compliance.

Q: Do these parts have identical physical dimensions? A: Yes. Both parts use the 6327 J-Lead package with dimensions of 0.626" L x 0.272" W (15.90mm x 6.90mm) and maximum seated height of 0.268" (6.80mm), ensuring direct mechanical compatibility in PCB layouts.

Q: What is the temperature coefficient for both parts? A: Both parts have a temperature coefficient of ±20ppm/°C and operate across the range of -55°C to 275°C, providing consistent performance across industrial and high-temperature applications.