RSMF2JB18K0 Equivalent & Substitute Parts

Part Overview

The RSMF2JB18K0 is an 18 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 performance across industrial temperature ranges. The part is currently active in production with 974 units in stock. Substitute parts are identified to address packaging format requirements, inventory availability, and alternative series options while maintaining electrical and mechanical compatibility.

Substiute Parts

RSMF2JB18K0

Stackpole Electronics IncIn Stock: 1079RSMF2JB18K0 Datasheet

Current PartRFQ

RSMF2JT18K0

Stackpole Electronics IncIn Stock: 906RSMF2JT18K0 Datasheet

DirectRFQ

RSF2JT18K0

Stackpole Electronics IncIn Stock: 24740RSF2JT18K0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSMF2JB18K0 is determined by the following critical parameters:

• Resistance value: 18 kOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 2W (exact match required)
• Composition: Metal Oxide Film (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C to 235°C (exact match required)
• Number of terminations: 2 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

Substitute parts are grouped by packaging format (Bulk, Tape & Reel, Cut Tape) and series designation (RSMF, RSF). All identified substitutes meet the electrical specifications and environmental compliance requirements of the main part. Physical dimensions vary between series; dimensional compatibility must be verified for specific board layouts.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance. Selection between RSMF2JB18K0, RSMF2JT18K0, and RSF2JT18K0 is determined by packaging requirements and inventory availability:

RSMF2JB18K0 and RSMF2JT18K0 are electrically and mechanically identical, differing only in packaging format (Bulk versus Tape & Reel). Both maintain identical physical dimensions of 0.177" diameter by 0.433" length.

RSF2JT18K0 is functionally equivalent but belongs to a different series with larger physical dimensions (0.217" diameter by 0.591" length). This part is available in significantly higher inventory (24698 units) and is supplied in Cut Tape format. Board layout compatibility must be verified before selection due to dimensional differences.

Frequently Asked Questions (FAQ)

Q: Can RSMF2JT18K0 replace RSMF2JB18K0 directly?

A: Yes. Both parts are electrically identical with matching resistance, tolerance, power rating, temperature coefficient, and operating range. The only difference is packaging format (Tape & Reel versus Bulk). Physical dimensions are identical, ensuring mechanical compatibility on PCBs.

Q: Is RSF2JT18K0 a suitable substitute for RSMF2JB18K0?

A: RSF2JT18K0 meets all electrical specifications and compliance requirements. However, physical dimensions differ: RSF2JT18K0 measures 0.217" diameter by 0.591" length compared to 0.177" diameter by 0.433" length for RSMF2JB18K0. Board layout verification is required before substitution.

Q: What determines substitution eligibility?

A: Substitutes must match the main part in resistance value, tolerance, power rating, composition, temperature coefficient, operating temperature range, termination count, and RoHS compliance status. Packaging format and physical dimensions are secondary considerations dependent on application requirements.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Bulk, Tape & Reel, Cut Tape) does not affect electrical characteristics. Selection is based on assembly process requirements and inventory management.

Q: Are all substitutes ROHS3 compliant?

A: Yes. RSMF2JB18K0, RSMF2JT18K0, and RSF2JT18K0 are all ROHS3 compliant and REACH unaffected.