Equivalent & Substitute Parts for S4-0R075J1

Part Overview

The S4-0R075J1 is a 75 milliohm, ±5% tolerance, 2-watt wirewound chip resistor manufactured by Riedon in the 4525 J-Lead package. This current sense resistor is designed for precision measurement applications requiring low resistance values with high power dissipation capability. The component features flame-proof and moisture-resistant construction with pulse-withstanding capability, making it suitable for demanding industrial and automotive environments. The part maintains active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Alternative models may be required when design specifications demand tighter tolerance specifications or when inventory constraints necessitate sourcing from available stock alternatives.

Substiute Parts

S4-0R075J1

RiedonIn Stock: 992S4-0R075J1 Datasheet

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S4-0R075F2

RiedonIn Stock: 1128S4-0R075F2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S4-0R075J1 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 75 mOhms
• Power rating: 2W
• Package / Case: 4525 J-Lead
• Physical dimensions: 0.449" L x 0.252" W (11.40mm x 6.40mm)
• Height - Seated (Max): 0.197" (5.00mm)
• Composition: Wirewound
• Operating temperature range: -55°C to 275°C

Allowable Variation:

• Tolerance: May be tighter (lower value) than ±5% without affecting form, fit, or function

The S4-0R075F2 qualifies as a direct substitute because it maintains identical resistance, power rating, package configuration, physical dimensions, and operating temperature specifications. The tolerance specification of ±1% represents an upgrade in precision while maintaining full compatibility with the original design requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the S4-0R075J1 and S4-0R075F2 maintain active product status and full ROHS3 compliance. Selection between these parts should be based on tolerance requirements for the specific application:

The S4-0R075J1 with ±5% tolerance is suitable for applications where standard precision current sensing is acceptable. The S4-0R075F2 with ±1% tolerance provides enhanced precision for applications requiring tighter resistance accuracy. Both parts are functionally interchangeable from a form, fit, and function perspective, with identical thermal, mechanical, and environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can S4-0R075F2 be used as a direct replacement for S4-0R075J1?

A: Yes. The S4-0R075F2 is a direct substitute. Both parts share identical resistance values, power ratings, package configurations, physical dimensions, and operating temperature ranges. The primary difference is tolerance specification, where the substitute offers tighter tolerance (±1% versus ±5%).

Q: What is the significance of the tolerance difference between these parts?

A: Tolerance defines the acceptable deviation from the nominal 75 milliohm resistance value. The S4-0R075J1 allows deviation up to ±5%, while the S4-0R075F2 restricts deviation to ±1%. For precision current sensing applications, the tighter tolerance of the S4-0R075F2 provides more accurate resistance values.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both parts are packaged in the 4525 J-Lead configuration with identical dimensions of 0.449" L x 0.252" W (11.40mm x 6.40mm) and maximum seated height of 0.197" (5.00mm). They are mechanically interchangeable.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the S4-0R075J1 and S4-0R075F2 are ROHS3 compliant, REACH affected, and carry MSL 1 (unlimited) moisture sensitivity level ratings.

Q: What is the operating temperature range for these resistors?

A: Both parts operate across the temperature range of -55°C to 275°C, providing thermal stability across industrial and automotive application environments.