RSMF2JB2K20 Equivalent & Substitute Parts

Part Overview

The RSMF2JB2K20 is a 2.2 kOhms ±5% 2W through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal oxide film 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 ROHS3 compliance and REACH unaffected status. Substitute parts are identified to provide alternative sourcing options when the primary packaging configuration is unavailable or when inventory constraints require alternative distribution formats.

Substiute Parts

RSMF2JB2K20

Stackpole Electronics IncIn Stock: 839RSMF2JB2K20 Datasheet

Current PartRFQ

RSMF2JT2K20

Stackpole Electronics IncIn Stock: 18192RSMF2JT2K20 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSMF2JB2K20 is determined by strict equivalence across the following critical parameters:

• Resistance value: 2.2 kOhms
• Tolerance: ±5%
• Power rating: 2W
• Composition: Metal Oxide Film
• Package configuration: Axial
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 235°C
• Physical dimensions: 0.177" Dia x 0.433" L (4.50mm x 11.00mm)
• Compliance certifications: ROHS3 Compliant, REACH Unaffected

The identified substitute part differs only in packaging format (Cut Tape versus Bulk), which does not affect electrical or mechanical performance. Both parts are manufactured by Stackpole Electronics Inc within the same RSMF series and maintain identical electrical specifications and physical form factors.

Parameter Comparison

Engineering Selection Recommendations

Both the RSMF2JB2K20 and RSMF2JT2K20 are functionally equivalent for circuit design purposes. Selection between these parts should be based on procurement and assembly requirements:

The RSMF2JB2K20 in Bulk packaging is suitable for high-volume manual assembly or applications where loose component handling is acceptable. The RSMF2JT2K20 in Cut Tape format is optimized for automated pick-and-place assembly processes and provides better component protection during storage and transport.

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

Frequently Asked Questions (FAQ)

Q: Can RSMF2JT2K20 be used as a direct replacement for RSMF2JB2K20?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape versus Bulk). They are interchangeable in circuit applications.

Q: Does packaging format affect component performance?

A: No. Packaging format affects only handling, storage, and assembly processes. Electrical specifications, thermal performance, and reliability characteristics are identical between Bulk and Cut Tape formats.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both RSMF2JB2K20 and RSMF2JT2K20 are ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations.

Q: What is the primary reason to substitute between these part numbers?

A: Substitution is driven by inventory availability and assembly process requirements. When one packaging format is unavailable, the alternative format provides equivalent functionality without circuit redesign.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical axial dimensions of 0.177" diameter by 0.433" length (4.50mm x 11.00mm), ensuring compatibility with existing PCB layouts and component placement.