S4-150RJ2 Equivalent & Substitute Parts

Part Overview

The S4-150RJ2 is a 150 Ohms ±5% 2W wirewound chip resistor in 4525 J-Lead package manufactured by Riedon. This component is designed for current sense applications with integrated safety features including flame proof, moisture resistant, and pulse withstanding capabilities. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring reliable precision resistor performance across extended temperature ranges.

Substitute parts are identified when electrical specifications, mechanical compatibility, and safety certifications remain equivalent or provide enhanced performance within the same package footprint and application context.

Substiute Parts

S4-150RJ2

RiedonIn Stock: 748S4-150RJ2 Datasheet

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S4-150RF1

RiedonIn Stock: 2315S4-150RF1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S4-150RJ2 is determined by the following critical parameters:

• Identical resistance value: 150 Ohms
• Identical power rating: 2W
• Identical package / case: 4525 J-Lead
• Identical physical dimensions: 0.449" L x 0.252" W (11.40mm x 6.40mm)
• Identical operating temperature range: -55°C ~ 275°C
• Identical composition: Wirewound
• Identical features: Current Sense, Flame Proof, Moisture Resistant, Pulse Withstanding, Safety
• Identical RoHS compliance: ROHS3 Compliant
• Identical MSL rating: 1 (Unlimited)

The S4-150RF1 qualifies as a direct substitute with enhanced tolerance specification (±1% versus ±5%), providing improved precision while maintaining all other electrical, mechanical, and safety characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the S4-150RJ2 and S4-150RF1 are Active status components manufactured by Riedon with full ROHS3 compliance and REACH compliance status. The S4-150RF1 provides enhanced tolerance specification at ±1% compared to the ±5% tolerance of the S4-150RJ2, while maintaining identical electrical performance, mechanical compatibility, and safety certifications across the full operating temperature range of -55°C to 275°C.

Selection between these parts depends on circuit tolerance requirements. Applications requiring tighter resistance tolerance specifications benefit from S4-150RF1 selection. Applications with tolerance flexibility may utilize either part interchangeably within the same PCB assembly without modification to footprint, thermal management, or compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can S4-150RF1 replace S4-150RJ2 in existing designs?

A: Yes. The S4-150RF1 maintains identical package dimensions (4525 J-Lead), physical footprint (0.449" L x 0.252" W), and all safety features. The enhanced ±1% tolerance provides improved precision without requiring PCB layout modifications.

Q: What is the primary difference between these parts?

A: The S4-150RF1 specifies ±1% tolerance versus ±5% tolerance on the S4-150RJ2. All other electrical characteristics, mechanical dimensions, and safety certifications remain identical.

Q: Are both parts suitable for current sense applications?

A: Yes. Both parts include current sense functionality with flame proof, moisture resistant, and pulse withstanding features. Both operate across -55°C to 275°C with ±20ppm/°C temperature coefficient.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts share identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Are compliance certifications identical?

A: Yes. Both parts are ROHS3 compliant, REACH affected, and classified as EAR99 for export control purposes. HTSUS classification is identical at 8533.21.0080.