Riedon S1-0R02J8 Equivalent & Substitute Parts

Part Overview

The Riedon S1-0R02J8 is a 20 mOhms ±5% wirewound chip resistor rated at 0.5W (1/2W) in a 1913 J-Lead package. This current sense resistor is designed for precision measurement applications requiring low resistance values with 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 parameters allow direct replacement while maintaining circuit performance and compliance requirements.

Substiute Parts

S1-0R02J8

RiedonIn Stock: 1049S1-0R02J8 Datasheet

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S1-0R02F1

RiedonIn Stock: 1650S1-0R02F1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the S1-0R02J8 is determined by strict equivalence in the following critical parameters:

• Resistance value: 20 mOhms (exact match required)
• Power rating: 0.5W (1/2W) minimum
• Package / Case: 1913 J-Lead (mechanical and electrical compatibility)
• Composition: Wirewound (performance characteristics)
• Operating temperature range: -55°C to 275°C (thermal compatibility)
• Physical dimensions: 0.189" L x 0.130" W, height 0.126" max (PCB layout compatibility)
• Compliance: ROHS3 and REACH status (regulatory alignment)

The S1-0R02F1 qualifies as a direct substitute based on these parameters. The primary difference is tolerance specification (±1% versus ±5%), which represents an upgrade in measurement precision while maintaining all other electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the S1-0R02J8 and S1-0R02F1 are Active status components manufactured by Riedon with identical ROHS3 and REACH compliance certifications. Selection between these parts depends on circuit tolerance requirements:

The S1-0R02J8 (±5% tolerance) is suitable for applications where standard measurement accuracy is acceptable. The S1-0R02F1 (±1% tolerance) provides enhanced precision for circuits requiring tighter resistance tolerances. Both parts maintain identical mechanical compatibility, thermal performance, and safety certifications, allowing substitution based solely on tolerance specification needs.

Frequently Asked Questions (FAQ)

Q: Can the S1-0R02F1 replace the S1-0R02J8 in existing designs?

A: Yes. The S1-0R02F1 is mechanically and electrically compatible with the S1-0R02J8. Both parts share identical package dimensions (1913 J-Lead), power rating (0.5W), operating temperature range (-55°C to 275°C), and feature set. The S1-0R02F1 offers improved tolerance (±1% versus ±5%), which enhances measurement precision without affecting circuit functionality.

Q: Are there any compliance differences between these parts?

A: No. Both the S1-0R02J8 and S1-0R02F1 carry identical ROHS3 compliance and REACH status, ensuring regulatory alignment for modern electronic assemblies.

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

A: The tolerance specification differs: S1-0R02J8 is ±5%, while S1-0R02F1 is ±1%. This affects measurement accuracy in current sensing applications. All other electrical and mechanical parameters remain identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.189" L x 0.130" W (4.80mm x 3.30mm) with a maximum seated height of 0.126" (3.20mm), ensuring identical PCB layout compatibility.

Q: What applications require these current sense resistors?

A: These 20 mOhms wirewound resistors are designed for precision current measurement in power management, motor control, and battery monitoring circuits. The flame-proof and moisture-resistant construction supports demanding industrial and automotive environments.