RSMF2JB91R0 Equivalent & Substitute Parts

Part Overview

The RSMF2JB91R0 is a 91 Ohms ±5% 2W through-hole resistor manufactured by Stackpole Electronics Inc. This metal oxide film axial resistor features flame-proof and safety characteristics, designed for applications requiring reliable power dissipation in the 2-watt range. The part is currently active in production with 698 pieces available in bulk packaging. Substitute parts are identified to address packaging availability, inventory levels, and supply chain flexibility while maintaining identical electrical and mechanical specifications.

Substiute Parts

RSMF2JB91R0

Stackpole Electronics IncIn Stock: 749RSMF2JB91R0 Datasheet

Current PartRFQ

RSMF2JT91R0

Stackpole Electronics IncIn Stock: 3456RSMF2JT91R0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RSMF2JB91R0 has one direct equivalent substitute: RSMF2JT91R0. Both parts are manufactured by Stackpole Electronics Inc within the RSMF series and share identical electrical specifications:

• Resistance value: 91 Ohms
• Tolerance: ±5%
• Power rating: 2W
• Composition: Metal Oxide Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 235°C
• Physical dimensions: 0.177" Dia x 0.433" L (4.50mm x 11.00mm)
• Termination count: 2
• Compliance: ROHS3 Compliant, REACH Unaffected

The substitution is based on packaging format only. The RSMF2JB91R0 is supplied in bulk packaging, while the RSMF2JT91R0 is supplied in cut tape (CT) packaging. Both parts are functionally and mechanically interchangeable.

Parameter Comparison

Engineering Selection Recommendations

Both RSMF2JB91R0 and RSMF2JT91R0 are active production parts with ROHS3 compliance and REACH unaffected status, making them suitable for applications requiring regulatory compliance. Selection between these parts should be based on packaging requirements and supply chain logistics. The RSMF2JT91R0 offers higher inventory availability (3434 pieces) in cut tape format, which may be advantageous for automated assembly processes. The RSMF2JB91R0 in bulk packaging is appropriate for manual assembly or applications where packaging format is not a constraint.

Frequently Asked Questions (FAQ)

Q: Are RSMF2JB91R0 and RSMF2JT91R0 electrically identical?

A: Yes. Both parts have identical electrical specifications: 91 Ohms resistance, ±5% tolerance, 2W power rating, metal oxide film composition, ±200ppm/°C temperature coefficient, and -55°C to 235°C operating temperature range.

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. RSMF2JB91R0 is supplied in bulk packaging, while RSMF2JT91R0 is supplied in cut tape (CT) packaging. Both are mechanically and functionally interchangeable.

Q: Can I use RSMF2JT91R0 as a direct replacement for RSMF2JB91R0?

A: Yes, RSMF2JT91R0 is a direct substitute for RSMF2JB91R0. The parts share identical physical dimensions (0.177" Dia x 0.433" L), electrical characteristics, and compliance certifications. Packaging format differences do not affect functional compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both RSMF2JB91R0 and RSMF2JT91R0 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: Which part should I select for high-volume automated assembly?

A: RSMF2JT91R0 in cut tape packaging is optimized for automated assembly processes and offers higher inventory availability (3434 pieces). RSMF2JB91R0 in bulk packaging is suitable for manual assembly or lower-volume applications.