RSF3JB47K0 Equivalent & Substitute Parts

Part Overview

The RSF3JB47K0 is a 47 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 active in production with 790 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

RSF3JB47K0

Stackpole Electronics IncIn Stock: 872RSF3JB47K0 Datasheet

Current PartRFQ

ROX3SJ47K

TE Connectivity Passive ProductIn Stock: 6399ROX3SJ47K Datasheet

MFR RecommendedRFQ

RSS3W47KJTB

TE Connectivity Passive ProductIn Stock: 988RSS3W47KJTB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RSF3JB47K0 are qualified based on the following criteria:

• Identical resistance value: 47 kOhms
• Identical tolerance: ±5%
• Identical power rating: 3W
• Identical composition: Metal Oxide Film
• Identical package: Axial through-hole
• Compatible operating temperature range (minimum -55°C, maximum ≥155°C)
• RoHS3 compliance maintained
• Two terminations (standard for axial resistors)

The two identified substitutes meet these core electrical and mechanical requirements while maintaining compliance certifications. Variations in temperature coefficient, maximum operating temperature, and specific safety features are noted but do not disqualify substitution when the primary electrical parameters align.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain ROHS3 compliance and meet the core electrical specifications for 47 kOhms ±5% 3W metal oxide film axial resistors. Selection between the main part and substitutes should be based on:

1. Operating temperature requirements: The RSF3JB47K0 supports the widest temperature range (-55°C ~ 235°C). The ROX3SJ47K operates to 200°C, while the RSS3W47KJTB is limited to 155°C. Applications requiring sustained operation above 155°C should prioritize the RSF3JB47K0 or ROX3SJ47K.

2. Temperature coefficient stability: The RSF3JB47K0 offers the tightest temperature coefficient at ±200ppm/°C, compared to ±300ppm/°C for RSS3W47KJTB and ±350ppm/°C for ROX3SJ47K. Precision applications may favor the main part.

3. Physical dimensions: All three parts fit standard axial through-hole footprints. The RSS3W47KJTB is the most compact (5.00mm diameter), while the RSF3JB47K0 is the largest (6.00mm diameter). PCB layout constraints may influence selection.

4. Packaging and availability: The ROX3SJ47K offers the highest inventory (6322 units) in Cut Tape format. The RSS3W47KJTB is available in Tape & Box format with 879 units. The RSF3JB47K0 is supplied in Bulk with 790 units.

5. Compliance documentation: The RSF3JB47K0 and ROX3SJ47K both confirm REACH Unaffected status. The RSS3W47KJTB shows Vendor Undefined REACH status, which may require clarification for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can ROX3SJ47K or RSS3W47KJTB be used as direct replacements for RSF3JB47K0?

A: Yes, both parts are electrically and mechanically compatible substitutes. All three share identical resistance (47 kOhms), tolerance (±5%), power rating (3W), composition (metal oxide film), and axial package configuration. Substitution is valid when the application's operating temperature range does not exceed the substitute part's maximum rating.

Q: What is the primary difference between the three parts?

A: The main differences are operating temperature range, temperature coefficient, physical dimensions, and packaging format. The RSF3JB47K0 has the highest maximum operating temperature (235°C) and tightest temperature coefficient (±200ppm/°C). The ROX3SJ47K and RSS3W47KJTB are both TE Connectivity products with lower maximum temperatures but higher inventory availability.

Q: Are there any compliance concerns when substituting these parts?

A: All three parts are ROHS3 compliant. The RSF3JB47K0 and ROX3SJ47K confirm REACH Unaffected status. The RSS3W47KJTB lists REACH status as Vendor Undefined. For applications subject to REACH regulations, clarification should be obtained from the supplier before selecting RSS3W47KJTB.

Q: Do the physical dimension differences affect PCB compatibility?

A: All three parts use standard axial through-hole packages and will fit the same PCB footprint. However, the RSS3W47KJTB (5.00mm diameter) is more compact than the ROX3SJ47K (5.50mm diameter) and RSF3JB47K0 (6.00mm diameter). In space-constrained layouts, the smaller diameter may be advantageous, though all three are functionally equivalent.

Q: Which substitute should be selected for high-temperature applications?

A: For applications requiring operation above 155°C, the RSF3JB47K0 (rated to 235°C) or ROX3SJ47K (rated to 200°C) are appropriate. The RSS3W47KJTB is limited to 155°C maximum operating temperature and is not suitable for sustained high-temperature operation.

Q: What packaging formats are available for each part?

A: The RSF3JB47K0 is supplied in Bulk format. The ROX3SJ47K is available in Cut Tape (CT) format. The RSS3W47KJTB is supplied in Tape & Box (TB) format. Selection depends on assembly process requirements and order quantity.