RSF3JB1R00 Equivalent & Substitute Parts

Part Overview

The RSF3JB1R00 is a 1 Ohm, ±5% tolerance, 3W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal oxide film resistor features flame retardant coating and safety design, operating across a temperature range of -55°C to 235°C. The part is currently active in production with 666 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

RSF3JB1R00

Stackpole Electronics IncIn Stock: 737RSF3JB1R00 Datasheet

Current PartRFQ

ROX3SJ1R0

TE Connectivity Passive ProductIn Stock: 80419ROX3SJ1R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RSF3JB1R00 is determined by the following critical parameters:

• Resistance value: 1 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 3W (exact match required)
• Composition: Metal Oxide Film (exact match required)
• Package: Axial configuration with 2 terminations (exact match required)
• RoHS compliance: ROHS3 Compliant (maintained)

The ROX3SJ1R0 from TE Connectivity Passive Product meets all these criteria, making it a valid substitute. Both parts share identical electrical specifications and mechanical compatibility within the axial through-hole form factor.

Parameter Comparison

Engineering Selection Recommendations

Both the RSF3JB1R00 and ROX3SJ1R0 are active production parts with ROHS3 compliance and REACH unaffected status. The ROX3SJ1R0 offers higher inventory availability (80,333 units) compared to the RSF3JB1R00 (666 units). Physical dimensions differ slightly, with the ROX3SJ1R0 being more compact. The RSF3JB1R00 supports operation to 235°C, while the ROX3SJ1R0 is rated to 200°C. Selection between these parts should be based on application temperature requirements and available board space.

Frequently Asked Questions (FAQ)

Q: Can ROX3SJ1R0 replace RSF3JB1R00 in all applications?

A: Both parts share identical electrical specifications (1 Ohm, ±5%, 3W, metal oxide film). Substitution is valid for applications operating at or below 200°C. Applications requiring operation above 200°C must use the RSF3JB1R00.

Q: Are there physical compatibility concerns?

A: The ROX3SJ1R0 is slightly smaller (5.50mm diameter vs. 6.00mm, 16.00mm length vs. 17.50mm). Both are axial through-hole components with 2 terminations. Verify PCB hole spacing and component clearance before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both RSF3JB1R00 and ROX3SJ1R0 are ROHS3 compliant and REACH unaffected, with identical ECCN (EAR99) and HTSUS classifications.

Q: What is the difference in temperature coefficient?

A: The RSF3JB1R00 has a temperature coefficient of ±200ppm/°C, while the ROX3SJ1R0 is ±350ppm/°C. For applications with strict tolerance requirements across temperature ranges, the RSF3JB1R00 provides better stability.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. The ROX3SJ1R0 offers superior availability and compact form factor. The RSF3JB1R00 provides extended temperature range and lower temperature coefficient. Both are active production parts suitable for new designs.