S3-0R05J8 Equivalent & Substitute Parts

Part Overview

The S3-0R05J8 is a 50 mOhms ±5% 3W wirewound chip resistor in 6327 J-Lead package manufactured by Riedon. This current sense resistor is designed for precision measurement applications requiring low resistance values with high power dissipation capability. The component features flame proof, moisture resistant, and pulse withstanding characteristics, making it suitable for demanding industrial and automotive environments. As an active product with ROHS3 compliance and unlimited moisture sensitivity level, the S3-0R05J8 remains in production. Equivalent and substitute parts may be required for applications demanding tighter tolerance specifications or inventory optimization.

Substiute Parts

S3-0R05J8

RiedonIn Stock: 989S3-0R05J8 Datasheet

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S3-0R05F1

RiedonIn Stock: 1201S3-0R05F1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the S3-0R05J8 is determined by the following critical parameters:

• Resistance Value: Must be 50 mOhms
• Power Rating: Must be 3W minimum
• Package / Case: Must be 6327 J-Lead
• Operating Temperature Range: Must support -55°C to 275°C
• Composition: Wirewound construction
• Physical Dimensions: Must match 0.626" L x 0.272" W and 0.268" max height
• Compliance: ROHS3 and REACH compliance required

The S3-0R05F1 qualifies as a direct substitute based on these parameters. The primary difference is tolerance specification, which does not affect mechanical or thermal compatibility.

Parameter Comparison

Engineering Selection Recommendations

The S3-0R05F1 is a direct substitute for the S3-0R05J8 in applications where tighter tolerance specifications are required. Both parts maintain identical mechanical compatibility, thermal performance, and regulatory compliance. The S3-0R05F1 offers improved tolerance at ±1% compared to the S3-0R05J8 at ±5%, making it suitable for precision current sensing applications requiring enhanced accuracy. Both parts are active products with full ROHS3 and REACH compliance, ensuring long-term availability and regulatory adherence. Selection between these parts should be based on application tolerance requirements and cost considerations.

Frequently Asked Questions (FAQ)

Q: Can the S3-0R05F1 be used as a direct replacement for the S3-0R05J8?

A: Yes. Both parts share identical resistance value, power rating, package type, physical dimensions, and operating temperature range. The S3-0R05F1 provides tighter tolerance specification without affecting mechanical or thermal compatibility.

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

A: The tolerance specification differs. The S3-0R05J8 has ±5% tolerance, while the S3-0R05F1 has ±1% tolerance. All other electrical and mechanical parameters remain identical.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the S3-0R05J8 and S3-0R05F1 are ROHS3 compliant and REACH affected, meeting current environmental and safety regulations.

Q: Will the S3-0R05F1 fit in the same PCB footprint as the S3-0R05J8?

A: Yes. Both parts use the 6327 J-Lead package with identical physical dimensions of 0.626" L x 0.272" W and maximum seated height of 0.268", ensuring direct PCB compatibility.

Q: What applications benefit from the tighter tolerance of the S3-0R05F1?

A: Applications requiring precise current measurement and monitoring benefit from the ±1% tolerance specification. This includes precision power management circuits, battery management systems, and high-accuracy current sensing applications.