RSMF3JB360R Equivalent & Substitute Parts

Part Overview

The RSMF3JB360R is a 360 Ohms ±5% 3W 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 3-watt range. The part is currently active in production with 1038 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs, particularly when higher power ratings or alternative packaging formats are required.

Substiute Parts

RSMF3JB360R

Stackpole Electronics IncIn Stock: 1134RSMF3JB360R Datasheet

Current PartRFQ

SQP500JB-360R

YAGEOIn Stock: 1666SQP500JB-360R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RSMF3JB360R is determined by the following critical parameters:

• Resistance Value: Must be 360 Ohms
• Tolerance: Must be ±5% or tighter
• Package Configuration: Must be axial through-hole
• Termination Count: Must have 2 terminations
• Compliance: Must maintain ROHS3 compliance and REACH unaffected status
• Power Rating: May be equal to or greater than 3W
• Operating Temperature: Must support the required application temperature range

The SQP500JB-360R from YAGEO meets these substitution criteria with a higher power rating of 5W, allowing it to function in applications where the RSMF3JB360R is specified, provided thermal and mechanical constraints are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Both the RSMF3JB360R and SQP500JB-360R maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for electronic component applications. The SQP500JB-360R provides a higher power dissipation capability at 5W compared to the 3W rating of the RSMF3JB360R, making it suitable for applications where additional thermal margin is beneficial. However, the RSMF3JB360R supports a higher maximum operating temperature of 235°C versus 155°C for the SQP500JB-360R. Selection between these parts should be based on the specific thermal and temperature requirements of the application circuit. Both parts are active products with adequate inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the SQP500JB-360R directly replace the RSMF3JB360R in all applications?

A: Direct replacement is possible when the application circuit can accommodate the SQP500JB-360R's lower maximum operating temperature of 155°C. The higher 5W power rating does not prevent substitution in circuits designed for 3W resistors. Physical dimensions differ between the two parts; verify that board layout and mechanical constraints allow the larger SQP500JB-360R package.

Q: What is the primary difference between these substitute parts?

A: The main differences are power rating (3W versus 5W), composition (metal oxide film versus cement), maximum operating temperature (235°C versus 155°C), and physical dimensions. Electrical specifications including resistance value and tolerance are identical.

Q: Are there any compliance concerns when substituting these parts?

A: Both parts maintain ROHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution from a regulatory standpoint.

Q: How do the physical dimensions affect substitution?

A: The RSMF3JB360R measures 0.217" diameter by 0.591" length, while the SQP500JB-360R measures 0.374" by 0.354" by 0.866" length. Circuit board layout must accommodate the larger substitute part dimensions to ensure proper fit and thermal performance.

Q: What packaging considerations apply to these parts?

A: The RSMF3JB360R is supplied in bulk packaging, while the SQP500JB-360R is supplied in tray packaging. This difference affects handling and assembly processes but does not impact electrical or mechanical compatibility.