RSMF3JB1R00 Equivalent & Substitute Parts

Part Overview

The RSMF3JB1R00 is a 1 Ohm, 3W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal oxide film resistor features flame-proof and safety characteristics, designed for applications requiring reliable power dissipation in compact form factors. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified to provide procurement flexibility while maintaining electrical and mechanical compatibility across equivalent specifications.

Substiute Parts

RSMF3JB1R00

Stackpole Electronics IncIn Stock: 1122RSMF3JB1R00 Datasheet

Current PartRFQ

RSMF3JT1R00

Stackpole Electronics IncIn Stock: 1841RSMF3JT1R00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RSMF3JB1R00 has one identified substitute: RSMF3JT1R00. Both parts are manufactured by Stackpole Electronics Inc within the RSMF series and share identical electrical and mechanical specifications. The substitution is valid based on the following critical parameters:

• Resistance value: 1 Ohms (identical)
• Tolerance: ±5% (identical)
• Power rating: 3W (identical)
• Composition: Metal Oxide Film (identical)
• Package configuration: Axial (identical)
• Physical dimensions: 0.217" Dia x 0.591" L (identical)
• Temperature coefficient: ±200ppm/°C (identical)
• Operating temperature range: -55°C ~ 235°C (identical)
• Termination count: 2 (identical)
• Compliance certifications: ROHS3 Compliant (identical)

The only difference between these parts is the packaging format: RSMF3JB1R00 is supplied in Bulk packaging, while RSMF3JT1R00 is supplied in Cut Tape (CT) format.

Parameter Comparison

Engineering Selection Recommendations

Both RSMF3JB1R00 and RSMF3JT1R00 are functionally equivalent for circuit applications. Selection between these parts should be based on procurement and assembly requirements:

• RSMF3JB1R00 (Bulk packaging) is suitable for high-volume manual assembly or reel-fed automated processes where loose component handling is acceptable.
• RSMF3JT1R00 (Cut Tape packaging) is optimized for automated pick-and-place assembly systems and provides component protection during handling and storage.

Both parts maintain identical electrical performance, thermal characteristics, and regulatory compliance. The choice between them does not affect circuit functionality or reliability.

Frequently Asked Questions (FAQ)

Q: Can RSMF3JT1R00 be used as a direct replacement for RSMF3JB1R00 in circuit design?

A: Yes. Both parts have identical electrical specifications, power ratings, temperature coefficients, and operating ranges. The only difference is packaging format, which does not affect electrical performance.

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

A: Bulk packaging supplies loose components in a container, suitable for manual assembly or bulk handling. Cut Tape packaging provides components on adhesive tape in precise spacing, optimized for automated assembly equipment.

Q: Are there any thermal or reliability differences between these substitute parts?

A: No. Both parts share identical thermal coefficients (±200ppm/°C), operating temperature ranges (-55°C ~ 235°C), and composition (Metal Oxide Film). Reliability characteristics are equivalent.

Q: Do both parts meet the same compliance standards?

A: Yes. Both RSMF3JB1R00 and RSMF3JT1R00 are ROHS3 compliant and REACH unaffected, with identical ECCN and HTSUS classifications.

Q: Which part should I select for a new design?

A: Selection depends on your assembly process. For automated assembly, RSMF3JT1R00 (Cut Tape) is standard. For manual assembly or specific procurement workflows, RSMF3JB1R00 (Bulk) may be appropriate. Both deliver identical circuit performance.