Equivalent & Substitute Parts for S3-4K7J8

Part Overview

The S3-4K7J8 is a 4.7 kOhms ±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. Substitute parts are identified when equivalent electrical and mechanical specifications are maintained while offering improved tolerance or availability.

Substiute Parts

S3-4K7J8

RiedonIn Stock: 729S3-4K7J8 Datasheet

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S3-4K7F1

RiedonIn Stock: 1256S3-4K7F1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The S3-4K7F1 qualifies as a substitute for the S3-4K7J8 based on the following criteria:

Maintained Parameters:

• Resistance value: 4.7 kOhms (identical)
• Power rating: 3W (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)
• Composition: Wirewound (identical)
• Features: Current Sense, Flame Proof, Moisture Resistant, Pulse Withstanding, Safety (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Differentiation:

• Tolerance: S3-4K7F1 offers ±1% tolerance versus ±5% for S3-4K7J8, representing improved precision

Parameter Comparison

Engineering Selection Recommendations

Both S3-4K7J8 and S3-4K7F1 are Active status components from Riedon with identical ROHS3 compliance and REACH affected status. The S3-4K7F1 provides tighter tolerance specification (±1% versus ±5%) while maintaining all other electrical and mechanical characteristics. Selection between these parts depends on circuit tolerance requirements. Both parts are suitable for applications requiring current sensing functionality with flame-proof and moisture-resistant characteristics across the -55°C to 275°C operating range.

Frequently Asked Questions (FAQ)

Q: Can S3-4K7F1 directly replace S3-4K7J8 in existing designs?

A: Yes. Both parts share identical resistance value, power rating, package type (6327 J-Lead), physical dimensions, operating temperature range, and feature set. The S3-4K7F1 offers improved tolerance specification.

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

A: The tolerance specification differs. S3-4K7J8 has ±5% tolerance while S3-4K7F1 has ±1% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both S3-4K7J8 and S3-4K7F1 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: Do these parts have the same package dimensions?

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

Q: What applications are these resistors designed for?

A: Both parts are designed for current sensing applications with flame-proof, moisture-resistant, and pulse-withstanding characteristics suitable for safety-critical circuits.