RSMF3JB220R Equivalent & Substitute Parts

Part Overview

The RSMF3JB220R is a 220 Ohms ±5% 3W 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 3W range. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement while maintaining circuit performance and safety requirements.

Substiute Parts

RSMF3JB220R

Stackpole Electronics IncIn Stock: 983RSMF3JB220R Datasheet

Current PartRFQ

RSMF3JT220R

Stackpole Electronics IncIn Stock: 6912RSMF3JT220R Datasheet

DirectRFQ

SQP500JB-220R

YAGEOIn Stock: 2190SQP500JB-220R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RSMF3JB220R are identified based on the following critical parameters:

Primary Matching Criteria:

• Resistance value: 220 Ohms
• Tolerance: ±5%
• Package configuration: Axial through hole
• Composition compatibility: Metal oxide film or cement
• Safety features: Flame proof designation
• Regulatory compliance: ROHS3 compliant

Substitution Categories:

Category 1 - Direct Equivalent (Packaging Variant) RSMF3JT220R maintains identical electrical specifications and physical dimensions as the main part. The substitution is based on packaging format change from Bulk to Cut Tape, with no impact on electrical performance or mechanical fit.

Category 2 - Electrical Upgrade (Power Rating Increase) SQP500JB-220R provides the same resistance and tolerance with increased power rating (5W vs 3W). This part uses cement composition instead of metal oxide film. Substitution is valid for applications where higher power dissipation capability is beneficial or required, though operating temperature range differs (-55°C ~ 155°C vs -55°C ~ 235°C).

Parameter Comparison

Engineering Selection Recommendations

RSMF3JT220R Selection: This substitute is recommended when packaging format change from Bulk to Cut Tape is acceptable. All electrical and mechanical specifications remain identical to the main part. Both parts are manufactured by Stackpole Electronics Inc and maintain the same Active product status and ROHS3 compliance. This substitution introduces no technical risk and is suitable for direct replacement in existing designs.

SQP500JB-220R Selection: This substitute is recommended for applications where increased power dissipation capability (5W vs 3W) is required or beneficial. The part maintains identical resistance, tolerance, and axial package configuration. Key considerations include the reduced maximum operating temperature (-55°C ~ 155°C vs -55°C ~ 235°C) and different composition (cement vs metal oxide film). Both parts are ROHS3 compliant and Active status. This substitution is valid only when circuit operating temperature requirements fall within the SQP500JB-220R range and the cement composition is compatible with application requirements.

Frequently Asked Questions (FAQ)

Q: Can RSMF3JT220R be used as a direct replacement for RSMF3JB220R? A: Yes. Both parts are identical in electrical specifications, physical dimensions, and performance characteristics. The only difference is packaging format (Cut Tape vs Bulk). Direct substitution is valid for all applications.

Q: What are the key differences between RSMF3JB220R and SQP500JB-220R? A: The primary differences are power rating (3W vs 5W), composition (metal oxide film vs cement), maximum operating temperature (-55°C ~ 235°C vs -55°C ~ 155°C), and manufacturer (Stackpole vs YAGEO). Resistance, tolerance, and axial package type are identical.

Q: Can SQP500JB-220R replace RSMF3JB220R in high-temperature applications? A: No. The SQP500JB-220R has a lower maximum operating temperature limit of 155°C compared to 235°C for the RSMF3JB220R. Use SQP500JB-220R only in applications where operating temperature does not exceed 155°C.

Q: Are all substitute parts ROHS3 compliant? A: Yes. RSMF3JT220R and SQP500JB-220R are both ROHS3 compliant, matching the main part specification.

Q: What does the packaging format change from Bulk to Cut Tape mean? A: Bulk packaging contains loose components, while Cut Tape packaging provides components on continuous tape for automated assembly equipment. The electrical and mechanical properties are identical; the difference is in handling and assembly convenience.

Q: Is the cement composition of SQP500JB-220R compatible with all applications? A: Cement composition resistors have different thermal and mechanical characteristics compared to metal oxide film. Verify compatibility with your specific application requirements before substitution.