Riedon S4-15KJ8 Equivalent & Substitute Parts

Part Overview

The Riedon S4-15KJ8 is a 15 kOhms ±5% 2W wirewound chip resistor in 4525 J-Lead package configuration. This component is designed for current sensing applications and features flame-proof, moisture-resistant, and pulse-withstanding characteristics. The part maintains Active product status with 871 units in current inventory. Substitute parts are identified to address tolerance requirements, inventory availability, or specific application performance criteria while maintaining electrical and mechanical compatibility.

Substiute Parts

S4-15KJ8

RiedonIn Stock: 903S4-15KJ8 Datasheet

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S4-15KF1

RiedonIn Stock: 6831S4-15KF1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S4-15KJ8 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 15 kOhms
• Power rating: 2W
• Package / Case: 4525 J-Lead
• Composition: Wirewound
• Operating temperature range: -55°C ~ 275°C
• Physical dimensions: 0.449" L x 0.252" W (11.40mm x 6.40mm)
• Height - Seated (Max): 0.197" (5.00mm)

Allowable Variation Parameters:

• Tolerance: May be tighter (lower tolerance value) than the original specification
• Temperature coefficient: Must remain ±20ppm/°C or better
• Compliance certifications: Must maintain ROHS3 and REACH compliance

The S4-15KF1 qualifies as a direct substitute because it maintains identical resistance, power rating, package configuration, physical dimensions, operating temperature range, and all compliance requirements. The tolerance specification is tighter (±1% versus ±5%), which represents an upgrade in precision without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the S4-15KJ8 and S4-15KF1 maintain Active product status and full ROHS3 and REACH compliance. Selection between these parts is based on tolerance requirements and inventory considerations.

The S4-15KJ8 (±5% tolerance) is suitable for applications where standard tolerance specifications are acceptable. The S4-15KF1 (±1% tolerance) provides tighter tolerance performance and is appropriate for precision current sensing circuits or applications requiring improved accuracy. Both parts are electrically and mechanically interchangeable within their respective tolerance specifications.

Inventory availability differs between the two parts: S4-15KJ8 has 871 units in stock, while S4-15KF1 has 6776 units available. Selection may be influenced by project timeline and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can the S4-15KF1 replace the S4-15KJ8 in existing designs?

A: Yes. The S4-15KF1 is a direct mechanical and electrical substitute. It maintains identical resistance value, power rating, package configuration, and physical dimensions. The tighter tolerance (±1% versus ±5%) represents improved precision and does not create compatibility issues.

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

A: The tolerance specification differs. The S4-15KJ8 has ±5% tolerance, while the S4-15KF1 has ±1% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across the identical temperature range of -55°C to 275°C with a temperature coefficient of ±20ppm/°C.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the S4-15KJ8 and S4-15KF1 are ROHS3 Compliant and REACH Affected, with identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: Are the physical dimensions identical?

A: Yes. Both parts share the same 4525 J-Lead package configuration with dimensions of 0.449" L x 0.252" W (11.40mm x 6.40mm) and maximum seated height of 0.197" (5.00mm).

Q: Which part should be selected for precision current sensing applications?

A: The S4-15KF1 with ±1% tolerance is appropriate for applications requiring tighter tolerance specifications. The S4-15KJ8 with ±5% tolerance is suitable for standard tolerance requirements.