RSMF1JB150R Equivalent & Substitute Parts

Part Overview

The RSMF1JB150R is a 150 Ohms ±5% 1W 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 performance across industrial temperature ranges. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when packaging requirements differ.

Substiute Parts

RSMF1JB150R

Stackpole Electronics IncIn Stock: 1123RSMF1JB150R Datasheet

Current PartRFQ

RSF1JT150R

Stackpole Electronics IncIn Stock: 723RSF1JT150R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSMF1JB150R is determined by the following critical parameters:

• Resistance value: 150 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Metal Oxide Film (exact match required)
• Package type: Axial (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The identified substitute RSF1JT150R meets all critical electrical and mechanical parameters. Differences in physical dimensions, operating temperature maximum, and packaging format (Tape & Reel vs. Bulk) do not affect functional equivalence for standard circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both RSMF1JB150R and RSF1JT150R are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Packaging requirements: RSMF1JB150R is supplied in Bulk format; RSF1JT150R is supplied in Tape & Reel format
• Physical space constraints: RSF1JT150R has larger physical dimensions and may not fit in space-constrained applications designed for RSMF1JB150R
• Temperature margin: RSF1JT150R supports operation to 235°C versus 200°C for RSMF1JB150R, providing additional thermal headroom in high-temperature applications
• Supply chain availability: Current inventory shows 1092 pcs for RSMF1JB150R and 683 pcs for RSF1JT150R

Frequently Asked Questions (FAQ)

Q: Can RSF1JT150R be used as a direct replacement for RSMF1JB150R?

A: RSF1JT150R is electrically equivalent to RSMF1JB150R. Both parts share identical resistance, tolerance, power rating, composition, and temperature coefficient. Physical dimensions differ, so board layout compatibility must be confirmed before substitution.

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

A: Bulk packaging (RSMF1JB150R) supplies components loose for manual handling and small-quantity applications. Tape & Reel packaging (RSF1JT150R) is formatted for automated assembly equipment and high-volume production. Packaging format does not affect electrical performance.

Q: Are there temperature limitations when substituting these parts?

A: Both parts operate within -55°C to 200°C. RSF1JT150R extends to 235°C maximum. If your application operates above 200°C, RSF1JT150R provides additional margin. Below 200°C, both parts are functionally equivalent.

Q: Do both parts meet the same compliance standards?

A: Yes. Both RSMF1JB150R and RSF1JT150R are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What should I verify before substituting these parts in my design?

A: Confirm physical dimensions fit your PCB layout, verify packaging format compatibility with your assembly process, and ensure operating temperature requirements do not exceed 200°C for RSMF1JB150R or 235°C for RSF1JT150R.