RSMF2JB150R Equivalent & Substitute Parts

Part Overview

The RSMF2JB150R is a 150 Ohms ±5% 2W 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 2W range. The part is currently active in production with 853 units in stock. Substitute parts are identified when packaging formats differ or when equivalent electrical and mechanical specifications are maintained across the product series.

Substiute Parts

RSMF2JB150R

Stackpole Electronics IncIn Stock: 930RSMF2JB150R Datasheet

Current PartRFQ

RSMF2JT150R

Stackpole Electronics IncIn Stock: 10128RSMF2JT150R Datasheet

DirectRFQ

RSF2JT150R

Stackpole Electronics IncIn Stock: 3380RSF2JT150R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RSMF2JB150R is determined by equivalence in the following critical parameters: resistance value (150 Ohms), tolerance (±5%), power rating (2W), composition (metal oxide film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 235°C), axial package configuration, and two-terminal design. Packaging format (bulk versus cut tape) does not affect electrical or mechanical compatibility. Physical dimensions and surface treatment variations (flame proof versus flame retardant coating) are secondary considerations when core electrical specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

RSMF2JB150R and RSMF2JT150R are electrically and mechanically identical, with the primary difference being packaging format (bulk versus cut tape). Both maintain identical physical dimensions, electrical specifications, and ROHS3 compliance. Selection between these two depends on assembly process requirements and inventory management practices.

RSF2JT150R is a manufacturer-recommended alternative that maintains all critical electrical parameters and operating characteristics. The increased physical dimensions (0.217" Dia x 0.591" L versus 0.177" Dia x 0.433" L) and flame retardant coating variant represent a different product series within the same manufacturer portfolio. This part is suitable for applications where the larger form factor and flame retardant coating specification are acceptable or preferred. All three parts maintain ROHS3 compliance and identical temperature performance.

Frequently Asked Questions (FAQ)

Q: Can RSMF2JT150R be used as a direct replacement for RSMF2JB150R?

A: Yes. Both parts share identical electrical specifications (150 Ohms ±5%, 2W, metal oxide film composition, ±200ppm/°C temperature coefficient, -55°C ~ 235°C operating range) and physical dimensions. The only difference is packaging format (bulk versus cut tape), which does not affect circuit performance.

Q: What is the difference between RSMF2JB150R and RSF2JT150R?

A: Both parts maintain identical electrical specifications and operating temperature range. The RSF2JT150R has larger physical dimensions (0.217" Dia x 0.591" L compared to 0.177" Dia x 0.433" L) and uses flame retardant coating instead of flame proof construction. These dimensional and surface treatment differences may affect PCB layout and mechanical mounting considerations.

Q: Are all three parts ROHS3 compliant?

A: Yes. RSMF2JB150R, RSMF2JT150R, and RSF2JT150R are all ROHS3 compliant and REACH unaffected.

Q: Which part should be selected for new designs?

A: Selection depends on specific application requirements. For identical form factor and specifications, RSMF2JT150R (cut tape packaging) or RSMF2JB150R (bulk packaging) are equivalent. RSF2JT150R is suitable when the larger axial body and flame retardant coating meet design specifications.

Q: Do packaging format differences affect electrical performance?

A: No. Bulk and cut tape packaging formats contain identical components. Packaging affects only handling, storage, and assembly process compatibility, not electrical or thermal characteristics.