Equivalent & Substitute Parts for S4-4K7J8

Part Overview

The S4-4K7J8 is a 4.7 kOhms ±5% 2W wirewound chip resistor manufactured by Riedon in the 4525 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 in product status with 1129 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required, particularly when tolerance or performance requirements differ from the original specification.

Substiute Parts

S4-4K7J8

RiedonIn Stock: 1193S4-4K7J8 Datasheet

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S4-4K7F1

RiedonIn Stock: 1376S4-4K7F1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The S4-4K7F1 qualifies as a substitute for the S4-4K7J8 based on the following criteria:

Matching Parameters:

• Resistance value: 4.7 kOhms (identical)
• Power rating: 2W (identical)
• Package / Case: 4525 J-Lead (identical)
• Physical dimensions: 0.449" L x 0.252" W, 0.197" height (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 and REACH compliance: ROHS3 Compliant, REACH Affected (identical)

Differentiating Parameter:

• Tolerance: S4-4K7F1 provides ±1% tolerance versus ±5% for S4-4K7J8

The S4-4K7F1 represents an upgrade path when tighter tolerance specifications are required while maintaining all other electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both S4-4K7J8 and S4-4K7F1 are Active products from Riedon with full ROHS3 compliance and REACH compliance status. Selection between these parts depends on tolerance requirements:

• S4-4K7J8 is appropriate for applications where ±5% tolerance meets circuit specifications and cost optimization is a priority.
• S4-4K7F1 is appropriate for applications requiring tighter tolerance control at ±1%, providing improved accuracy in current sensing and precision circuit applications.

Both parts maintain identical thermal performance, package footprint, and safety certifications, ensuring direct substitution capability at the board level when tolerance specifications are compatible.

Frequently Asked Questions (FAQ)

Q: Can S4-4K7F1 be used as a direct replacement for S4-4K7J8?

A: Yes, S4-4K7F1 is a direct substitute from an electrical and mechanical standpoint. The primary difference is tolerance specification (±1% versus ±5%). If the circuit design permits ±1% tolerance, substitution is valid.

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

A: The S4-4K7F1 provides ±1% tolerance compared to the ±5% tolerance of the S4-4K7J8. All other specifications, including resistance value, power rating, package dimensions, operating temperature range, and safety features, are identical.

Q: Are the physical packages identical?

A: Yes. Both parts use the 4525 J-Lead package with identical dimensions of 0.449" L x 0.252" W x 0.197" H (11.40mm x 6.40mm x 5.00mm). They are mechanically interchangeable on the PCB.

Q: Do both parts meet the same compliance standards?

A: Yes. Both S4-4K7J8 and S4-4K7F1 are ROHS3 compliant, REACH affected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should I select for a new design?

A: Selection depends on circuit tolerance requirements. For applications requiring precision current sensing with tight tolerance control, S4-4K7F1 is the appropriate choice. For general-purpose applications where ±5% tolerance is acceptable, S4-4K7J8 is suitable.