RSMF2JB330R Equivalent & Substitute Parts

Part Overview

The RSMF2JB330R is a 330 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 2-watt range. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across packaging formats and minor feature variations.

Substiute Parts

RSMF2JB330R

Stackpole Electronics IncIn Stock: 1237RSMF2JB330R Datasheet

Current PartRFQ

RSMF2JT330R

Stackpole Electronics IncIn Stock: 8744RSMF2JT330R Datasheet

DirectRFQ

RSF2JT330R

Stackpole Electronics IncIn Stock: 4734RSF2JT330R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSMF2JB330R is determined by strict equivalence across the following critical parameters: resistance value (330 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 regulatory compliance (ROHS3, REACH unaffected).

Identified substitutes maintain these core electrical and mechanical specifications. Variations in packaging format (bulk versus cut tape) and minor feature differences (flame-proof versus flame-retardant coating) do not affect electrical performance or thermal characteristics. All substitute parts are manufactured by Stackpole Electronics Inc and retain active product status.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RSMF2JB330R, RSMF2JT330R, and RSF2JT330R—are electrically and thermally equivalent for 330 Ohm 2W axial resistor applications. Selection between these parts is based on procurement and assembly requirements rather than electrical performance.

RSMF2JB330R in bulk packaging is suitable for high-volume manufacturing environments with automated handling systems. RSMF2JT330R in cut tape format provides the same electrical specifications with alternative packaging for pick-and-place assembly workflows. RSF2JT330R, also in cut tape format, offers identical electrical performance with a minor feature variation (flame-retardant coating versus flame-proof construction) and different physical dimensions (0.217" Dia x 0.591" L versus 0.177" Dia x 0.433" L).

All parts maintain ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for commercial and industrial applications. Active product status across all three parts ensures long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can RSMF2JT330R replace RSMF2JB330R in existing designs?

A: Yes. Both parts are electrically identical with 330 Ohms ±5% resistance, 2W power rating, and identical temperature coefficients and operating ranges. The difference is packaging format: RSMF2JB330R is bulk, while RSMF2JT330R is cut tape. No circuit redesign is required.

Q: What is the difference between RSMF2JB330R and RSF2JT330R?

A: Both are 330 Ohm 2W axial resistors with identical electrical specifications. The primary differences are: (1) packaging format (bulk versus cut tape), (2) physical dimensions (0.177" Dia x 0.433" L versus 0.217" Dia x 0.591" L), and (3) safety feature designation (flame-proof versus flame-retardant coating). Electrical performance and thermal characteristics are equivalent.

Q: Are all three parts suitable for the same PCB layout?

A: RSMF2JB330R and RSMF2JT330R share identical dimensions and can be used interchangeably in the same PCB footprint. RSF2JT330R has larger physical dimensions and requires verification of PCB hole spacing and component clearance before substitution.

Q: Do packaging format differences affect electrical performance?

A: No. Bulk and cut tape packaging formats do not affect electrical characteristics, resistance value, tolerance, power rating, or temperature performance. Packaging selection is based on assembly process requirements and inventory management.

Q: Are all parts compliant with current regulatory standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for commercial and industrial electronic applications.