RSMF2JB2K00 Equivalent & Substitute Parts

Part Overview

The RSMF2JB2K00 is a 2 kOhms ±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 maintains stable performance across the -55°C to 235°C operating temperature range. Substitute parts are identified when packaging format, inventory availability, or specific feature variations require alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

RSMF2JB2K00

Stackpole Electronics IncIn Stock: 980RSMF2JB2K00 Datasheet

Current PartRFQ

RSMF2JT2K00

Stackpole Electronics IncIn Stock: 56903RSMF2JT2K00 Datasheet

DirectRFQ

RSF2JA2K00

Stackpole Electronics IncIn Stock: 5355RSF2JA2K00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSMF2JB2K00 is determined by strict equivalence in the following electrical and mechanical parameters:

• Resistance value: 2 kOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 2W (exact match required)
• Composition: Metal Oxide Film (exact match required)
• Package type: Axial through-hole (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 235°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Substitute parts may differ in packaging format (bulk versus cut tape) and physical dimensions while maintaining all electrical specifications. Feature variations such as flame-proof versus flame-retardant coating are permitted provided all other parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

All three parts—RSMF2JB2K00, RSMF2JT2K00, and RSF2JA2K00—meet the core electrical and compliance requirements for 2 kOhms ±5% 2W metal oxide film axial resistor applications. Selection between these parts should be based on:

• Packaging requirements: RSMF2JB2K00 is supplied in bulk format; RSMF2JT2K00 and RSF2JA2K00 are supplied in cut tape format for automated assembly.
• Physical dimensions: RSMF2JB2K00 and RSMF2JT2K00 share identical dimensions (4.50mm x 11.00mm); RSF2JA2K00 has larger dimensions (5.50mm x 15.00mm).
• Feature specification: RSMF2JB2K00 and RSMF2JT2K00 feature flame-proof construction; RSF2JA2K00 features flame-retardant coating.
• Inventory availability: RSMF2JT2K00 has the highest stock level (56,825 pcs), followed by RSF2JA2K00 (5,309 pcs) and RSMF2JB2K00 (874 pcs).

All parts maintain ROHS3 compliance and are suitable for applications requiring -55°C to 235°C operating temperature stability.

Frequently Asked Questions (FAQ)

Q: Can RSMF2JT2K00 directly replace RSMF2JB2K00 in existing designs?

A: Yes. Both parts are electrically and mechanically identical with matching resistance, tolerance, power rating, temperature coefficient, and physical dimensions. The difference is packaging format: RSMF2JB2K00 is bulk; RSMF2JT2K00 is cut tape. No circuit or PCB layout modifications are required.

Q: What are the dimensional differences between RSMF2JT2K00 and RSF2JA2K00?

A: RSMF2JT2K00 measures 0.177" diameter x 0.433" length (4.50mm x 11.00mm). RSF2JA2K00 measures 0.217" diameter x 0.591" length (5.50mm x 15.00mm). The larger dimensions of RSF2JA2K00 may affect PCB layout and component spacing.

Q: Are there differences in safety or reliability between flame-proof and flame-retardant coating?

A: Both flame-proof (RSMF series) and flame-retardant coating (RSF series) meet safety requirements. The specific choice depends on application safety standards and regulatory requirements. All parts are ROHS3 compliant and suitable for equivalent thermal and electrical performance.

Q: Which substitute part has the best availability?

A: RSMF2JT2K00 has the highest inventory level at 56,825 pieces in stock, making it the preferred choice for high-volume production requirements.

Q: Can RSF2JA2K00 be used in space-constrained PCB designs?

A: RSF2JA2K00 has larger physical dimensions than RSMF2JB2K00 and RSMF2JT2K00. Verify PCB layout clearances and component spacing before substitution in space-constrained applications.