S3-68RJ8 Equivalent & Substitute Parts

Part Overview

The S3-68RJ8 is a 68 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

S3-68RJ8

RiedonIn Stock: 1125S3-68RJ8 Datasheet

Current PartRFQ

S3-68RF1

RiedonIn Stock: 2544S3-68RF1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The S3-68RF1 qualifies as a direct substitute for the S3-68RJ8 based on the following criteria:

Matching Parameters:

• Resistance value: 68 Ohms (identical)
• Power rating: 3W (identical)
• Package / Case: 6327 J-Lead (identical)
• Physical dimensions: 0.626" L x 0.272" W (15.90mm x 6.90mm) (identical)
• Height - Seated (Max): 0.268" (6.80mm) (identical)
• Composition: Wirewound (identical)
• Operating temperature range: -55°C ~ 275°C (identical)
• Temperature coefficient: ±20ppm/°C (identical)
• Features: Current Sense, Flame Proof, Moisture Resistant, Pulse Withstanding, Safety (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Tolerance Difference: The S3-68RF1 provides ±1% tolerance compared to the S3-68RJ8's ±5% tolerance. This represents an upgrade in tolerance specification, allowing for tighter resistance value control while maintaining full mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the S3-68RJ8 and S3-68RF1 are Active status components manufactured by Riedon and maintain full ROHS3 compliance. The S3-68RF1 provides identical mechanical compatibility and electrical performance with the added benefit of tighter tolerance specification (±1% versus ±5%). Both parts are suitable for current sensing applications requiring flame proof, moisture resistant, and pulse withstanding characteristics across the -55°C to 275°C operating range.

Selection between these parts depends on circuit tolerance requirements. The S3-68RF1 is appropriate for applications requiring stricter resistance value control, while the S3-68RJ8 remains suitable for applications where ±5% tolerance is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the S3-68RF1 be used as a direct replacement for the S3-68RJ8?

A: Yes. The S3-68RF1 is mechanically and electrically compatible with the S3-68RJ8. Both parts share identical package dimensions (6327 J-Lead), resistance value (68 Ohms), power rating (3W), operating temperature range (-55°C ~ 275°C), and feature set. The S3-68RF1 provides improved tolerance specification (±1% versus ±5%).

Q: What is the primary difference between these two parts?

A: The tolerance specification differs. The S3-68RJ8 has ±5% tolerance, while the S3-68RF1 has ±1% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts suitable for current sensing applications?

A: Yes. Both the S3-68RJ8 and S3-68RF1 are designed for current sensing applications and include flame proof, moisture resistant, and pulse withstanding features.

Q: Do these parts have the same physical footprint?

A: Yes. Both parts use the 6327 J-Lead package with identical dimensions of 0.626" L x 0.272" W (15.90mm x 6.90mm) and maximum seated height of 0.268" (6.80mm).

Q: Are both parts RoHS compliant?

A: Yes. Both the S3-68RJ8 and S3-68RF1 are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited).