RSF2JB39K0 Equivalent & Substitute Parts

Part Overview

The RSF2JB39K0 is a 39 kOhms ±5% 2W through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal oxide film resistor features flame retardant coating and safety characteristics, designed for applications requiring reliable power dissipation in the 2-watt range. The part is currently active in production with ROHS3 compliance. Substitute parts are identified to provide alternative packaging and sourcing options while maintaining identical electrical and mechanical specifications.

Substiute Parts

RSF2JB39K0

Stackpole Electronics IncIn Stock: 1121RSF2JB39K0 Datasheet

Current PartRFQ

RSF2JT39K0

Stackpole Electronics IncIn Stock: 32252RSF2JT39K0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RSF2JB39K0 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part RSF2JT39K0 maintains identical specifications in resistance value, tolerance, power rating, composition, temperature coefficient, operating temperature range, physical dimensions, and termination count. The only difference between these parts is packaging format: RSF2JB39K0 is supplied in bulk packaging, while RSF2JT39K0 is supplied in cut tape (CT) packaging. Both parts are manufactured by Stackpole Electronics Inc within the RSF series and carry identical compliance certifications. Substitution is valid when packaging format does not impose constraints on the application or procurement workflow.

Parameter Comparison

Engineering Selection Recommendations

Both RSF2JB39K0 and RSF2JT39K0 are active production parts with full ROHS3 compliance and REACH unaffected status, making them suitable for applications subject to environmental and regulatory requirements. Selection between these parts should be based on procurement and assembly requirements. The bulk packaging format of RSF2JB39K0 is appropriate for high-volume applications or inventory consolidation. The cut tape packaging format of RSF2JT39K0 is appropriate for automated pick-and-place assembly processes or applications requiring smaller order quantities. Both parts deliver identical electrical performance and thermal characteristics across the specified operating temperature range of -55°C to 235°C.

Frequently Asked Questions (FAQ)

Q: Can RSF2JT39K0 be used as a direct replacement for RSF2JB39K0?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: RSF2JB39K0 is supplied in bulk, while RSF2JT39K0 is supplied in cut tape. Substitution is valid provided the packaging format is compatible with your assembly process.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts have identical resistance (39 kOhms), tolerance (±5%), power rating (2W), temperature coefficient (±200ppm/°C), and operating temperature range (-55°C to 235°C).

Q: Do both parts meet the same compliance standards?

A: Yes. Both RSF2JB39K0 and RSF2JT39K0 are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the physical footprint difference between these parts?

A: There is no footprint difference. Both parts have identical axial dimensions of 0.217" diameter by 0.591" length (5.50mm x 15.00mm).

Q: Which packaging format should I select for automated assembly?

A: Cut tape (CT) packaging, represented by RSF2JT39K0, is designed for automated pick-and-place assembly systems. Bulk packaging, represented by RSF2JB39K0, is suitable for manual assembly or high-volume manual feeding processes.