RSMF2JB3R30 Equivalent & Substitute Parts

Part Overview

The RSMF2JB3R30 is a 3.3 Ohm, 2W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal oxide film resistor is designed for applications requiring flame-proof and safety-rated components with stable performance across industrial temperature ranges. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified when packaging or supply chain requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

RSMF2JB3R30

Stackpole Electronics IncIn Stock: 1107RSMF2JB3R30 Datasheet

Current PartRFQ

RSMF2JT3R30

Stackpole Electronics IncIn Stock: 9963RSMF2JT3R30 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSMF2JB3R30 is determined by strict equivalence across the following critical parameters:

• Resistance value: 3.3 Ohms
• Tolerance: ±5%
• Power rating: 2W
• Composition: Metal Oxide Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 235°C
• Package configuration: Axial
• Physical dimensions: 0.177" Dia x 0.433" L (4.50mm x 11.00mm)
• Safety and flame-proof characteristics
• RoHS3 compliance status

The RSMF2JT3R30 qualifies as a direct substitute based on identical electrical specifications and mechanical form factor. The only difference between the main part and substitute is the packaging format (Bulk versus Cut Tape), which does not affect component performance or circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the RSMF2JB3R30 and RSMF2JT3R30 are active production components from Stackpole Electronics Inc with identical electrical performance and mechanical compatibility. Selection between these parts should be based on packaging requirements and supply chain logistics:

• RSMF2JB3R30 (Bulk packaging) is suitable for high-volume applications where components are supplied in bulk quantities and sorted during assembly.
• RSMF2JT3R30 (Cut Tape packaging) is appropriate for automated pick-and-place assembly processes and applications requiring tape-and-reel format.

Both parts maintain full RoHS3 compliance and are suitable for applications operating within the -55°C to 235°C temperature range. The identical physical dimensions, electrical specifications, and safety certifications ensure direct interchangeability in circuit design and PCB layout.

Frequently Asked Questions (FAQ)

Q: Can RSMF2JT3R30 be used as a direct replacement for RSMF2JB3R30?

A: Yes. The RSMF2JT3R30 is electrically and mechanically identical to the RSMF2JB3R30. The only difference is packaging format (Cut Tape versus Bulk). Both parts have identical resistance, tolerance, power rating, temperature characteristics, and physical dimensions.

Q: What is the difference between Bulk and Cut Tape packaging?

A: Bulk packaging supplies components loose in a container, suitable for manual assembly or batch processing. Cut Tape packaging supplies components on continuous tape in reels, optimized for automated assembly equipment. The components themselves are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RSMF2JB3R30 and RSMF2JT3R30 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the operating temperature range for these resistors?

A: Both parts operate reliably from -55°C to 235°C, with a temperature coefficient of ±200ppm/°C. This range supports industrial and high-temperature applications.

Q: Can these resistors be used in safety-critical applications?

A: Yes. Both parts feature flame-proof and safety characteristics as specified by Stackpole Electronics Inc. Verify compliance with specific application safety standards and certifications required by your end-use application.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both RSMF2JB3R30 and RSMF2JT3R30 have identical axial package dimensions of 0.177" Dia x 0.433" L (4.50mm x 11.00mm), ensuring identical PCB footprint and mounting compatibility.