RSF3JB6K80 Equivalent & Substitute Parts

Part Overview

The RSF3JB6K80 is a 6.8 kOhms ±5% 3W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal oxide film resistor features flame retardant coating and safety design, suitable for applications requiring reliable power dissipation in the 3W range. The part is active in production with 1155 units currently in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when packaging requirements differ.

Substiute Parts

RSF3JB6K80

Stackpole Electronics IncIn Stock: 1239RSF3JB6K80 Datasheet

Current PartRFQ

RSMF3JT6K80

Stackpole Electronics IncIn Stock: 9827RSMF3JT6K80 Datasheet

MFR RecommendedRFQ

ROX3SJ6K8

TE Connectivity Passive ProductIn Stock: 11025ROX3SJ6K8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: resistance value (6.8 kOhms), tolerance (±5%), power rating (3W), composition (metal oxide film), and package type (axial). All identified substitutes meet these core electrical and mechanical requirements. Variations in physical dimensions, temperature coefficient, operating temperature range, and packaging format (bulk vs. cut tape) are secondary considerations that do not affect functional equivalence for standard circuit applications.

The two substitute parts identified are:

• RSMF3JT6K80 (Stackpole Electronics Inc)
• ROX3SJ6K8 (TE Connectivity Passive Product)

Parameter Comparison

Engineering Selection Recommendations

All three parts are active products with ROHS3 compliance. The RSF3JB6K80 and RSMF3JT6K80 are both Stackpole Electronics Inc products with identical electrical specifications and operating temperature ranges. The RSMF3JT6K80 is available in higher inventory (9720 units) and cut tape packaging, making it suitable for automated assembly processes. The ROX3SJ6K8 from TE Connectivity is also fully compliant and available in high volume (10934 units). Selection between substitutes should be based on packaging requirements, inventory availability, and supply chain preferences rather than electrical performance, as all parts meet the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can RSMF3JT6K80 be used as a direct replacement for RSF3JB6K80?

A: Yes. Both parts share identical electrical specifications: 6.8 kOhms resistance, ±5% tolerance, 3W power rating, metal oxide film composition, and axial package type. The primary difference is packaging format (cut tape vs. bulk) and physical dimensions, which do not affect circuit functionality.

Q: What is the difference between the temperature coefficients of RSF3JB6K80 and ROX3SJ6K8?

A: The RSF3JB6K80 has a temperature coefficient of ±200ppm/°C, while the ROX3SJ6K8 has ±350ppm/°C. Both values are within acceptable ranges for metal oxide film resistors. The ROX3SJ6K8 exhibits slightly greater resistance variation across temperature extremes but remains functionally equivalent for standard applications.

Q: Are there any operating temperature limitations when substituting ROX3SJ6K8?

A: The ROX3SJ6K8 has a maximum operating temperature of 200°C, compared to 235°C for the RSF3JB6K80 and RSMF3JT6K80. Applications requiring operation above 200°C must use the Stackpole products.

Q: Does packaging format affect electrical performance?

A: No. Bulk and cut tape packaging formats do not affect electrical characteristics. Selection should be based on assembly process requirements and inventory management preferences.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and suitable for applications with RoHS requirements.