RSF3JB2K70 Equivalent & Substitute Parts

Part Overview

The RSF3JB2K70 is a 2.7 kOhms ±5% 3W through-hole resistor manufactured by Stackpole Electronics Inc. It features metal oxide film composition with flame retardant coating and safety characteristics, designed for axial package applications. The part is currently in active production status with 690 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range for this resistor category.

Substiute Parts

RSF3JB2K70

Stackpole Electronics IncIn Stock: 765RSF3JB2K70 Datasheet

Current PartRFQ

ROX3SJ2K7

TE Connectivity Passive ProductIn Stock: 6419ROX3SJ2K7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSF3JB2K70 is determined by strict equivalence in the following parameters:

• Resistance value: 2.7 kOhms
• Tolerance: ±5%
• Power rating: 3W
• Composition: Metal Oxide Film
• Package: Axial through-hole configuration
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

The ROX3SJ2K7 manufactured by TE Connectivity Passive Product meets all core electrical and mechanical requirements. Both parts share identical resistance, tolerance, power rating, and composition specifications. Axial package dimensions are compatible within standard PCB assembly tolerances. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory equivalence.

Parameter Comparison

Engineering Selection Recommendations

The ROX3SJ2K7 is a direct substitute for the RSF3JB2K70 based on electrical and regulatory equivalence. Both parts are active production items with ROHS3 compliance and REACH unaffected status. The ROX3SJ2K7 offers higher inventory availability (6398 units) compared to the RSF3JB2K70 (690 units). Axial package dimensions are compatible for standard through-hole PCB assembly. The operating temperature range of the ROX3SJ2K7 (-55°C ~ 200°C) covers the majority of industrial applications, with the upper limit 35°C lower than the RSF3JB2K70. Selection between these parts should be based on application temperature requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the ROX3SJ2K7 be used as a direct replacement for the RSF3JB2K70 in all applications?

A: The ROX3SJ2K7 is electrically and mechanically equivalent for applications operating within -55°C to 200°C. Applications requiring operation above 200°C must use the RSF3JB2K70, which is rated to 235°C.

Q: What are the physical dimension differences between these parts?

A: The RSF3JB2K70 measures 0.236" diameter x 0.689" length (6.00mm x 17.50mm). The ROX3SJ2K7 measures 0.217" diameter x 0.630" length (5.50mm x 16.00mm). Both fit standard axial component footprints with compatible lead spacing.

Q: Are both parts RoHS compliant?

A: Yes, both the RSF3JB2K70 and ROX3SJ2K7 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What is the difference in temperature coefficient between these parts?

A: The RSF3JB2K70 has a temperature coefficient of ±200ppm/°C, while the ROX3SJ2K7 has ±350ppm/°C. This difference affects resistance stability across temperature variations. Applications with strict tolerance requirements should account for this specification.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. The ROX3SJ2K7 offers better supply availability. The RSF3JB2K70 provides superior temperature stability and higher maximum operating temperature. Both meet identical electrical specifications for resistance, tolerance, and power rating.