RSF3JB68K0 Equivalent & Substitute Parts

Part Overview

The RSF3JB68K0 is a 68 kOhms ±5% 3W through-hole resistor manufactured by Stackpole Electronics Inc. It features a metal oxide film composition with flame retardant coating and safety characteristics, designed for axial package applications. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RSF3JB68K0

Stackpole Electronics IncIn Stock: 719RSF3JB68K0 Datasheet

Current PartRFQ

ROX3SJ68K

TE Connectivity Passive ProductIn Stock: 37947ROX3SJ68K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSF3JB68K0 is determined by the following critical parameters:

• Resistance value: 68 kOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 3W (exact match required)
• Composition: Metal Oxide Film (exact match required)
• Package: Axial (exact match required)
• Regulatory compliance: ROHS3 Compliant and REACH Unaffected status

The ROX3SJ68K from TE Connectivity Passive Product meets all substitution criteria with identical electrical specifications and package configuration. Both parts maintain metal oxide film construction, 3W power handling, and full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the RSF3JB68K0 and ROX3SJ68K are active production parts with ROHS3 compliance and REACH unaffected status. The ROX3SJ68K offers pulse withstanding capability in addition to flame proof characteristics. Physical dimensions differ slightly, with the ROX3SJ68K being more compact. The RSF3JB68K0 operates to 235°C maximum, while the ROX3SJ68K operates to 200°C maximum. Temperature coefficient specifications differ at ±200ppm/°C versus ±350ppm/°C respectively. Selection between these parts depends on specific application requirements regarding maximum operating temperature and temperature stability performance.

Frequently Asked Questions (FAQ)

Q: Can ROX3SJ68K replace RSF3JB68K0 in all applications?

A: Both parts share identical resistance, tolerance, power rating, and composition specifications. Physical dimension differences and operating temperature range variations must be evaluated against specific circuit board layout and thermal environment requirements.

Q: What are the key differences between these substitute parts?

A: The primary differences are maximum operating temperature (RSF3JB68K0: 235°C vs. ROX3SJ68K: 200°C), temperature coefficient (±200ppm/°C vs. ±350ppm/°C), and physical dimensions (6.00mm x 17.50mm vs. 5.50mm x 16.00mm). Both maintain identical electrical specifications and regulatory compliance.

Q: Are both parts suitable for high-temperature applications?

A: The RSF3JB68K0 supports operation to 235°C, while the ROX3SJ68K supports operation to 200°C. Application thermal requirements determine which part is appropriate.

Q: Do packaging differences affect interchangeability?

A: Both parts use axial package configuration. Physical dimension variations may impact board layout compatibility. Verify PCB hole spacing and component clearance requirements before substitution.

Q: Are both parts RoHS and REACH compliant?

A: Yes, both RSF3JB68K0 and ROX3SJ68K are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.