RC14JB3M00 Equivalent & Substitute Parts

Part Overview

The RC14JB3M00 is a 3 MOhms ±5% 0.25W (1/4W) through-hole resistor with axial leads, manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse withstanding characteristics, designed for applications requiring precision resistance in compact form factors. The part is currently obsolete, necessitating identification of functionally equivalent alternatives to maintain design continuity and support ongoing production or repair requirements.

Substiute Parts

RC14JB3M00

Stackpole Electronics IncIn Stock: 779RC14JB3M00 Datasheet

Current PartRFQ

RC14KB3M00

Stackpole Electronics IncIn Stock: 636RC14KB3M00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The RC14KB3M00 qualifies as a substitute for the RC14JB3M00 based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Resistance value: 3 MOhms (identical)
• Power rating: 0.25W (1/4W) (identical)
• Composition: Carbon Composition (identical)
• Package type: Axial (identical)
• Operating temperature range: -55°C to 125°C (identical)
• Physical dimensions: 0.094" Dia x 0.248" L (2.40mm x 6.30mm) (identical)
• Features: Non-Inductive, Pulse Withstanding (identical)
• Terminations: 2 (identical)
• RoHS compliance: ROHS3 Compliant (identical)

Tolerance Variance: The RC14KB3M00 has a tolerance of ±10%, compared to the ±5% tolerance of the RC14JB3M00. This represents a relaxation of tolerance specification and is acceptable in applications where the tighter tolerance of the original part is not a functional requirement.

Parameter Comparison

Engineering Selection Recommendations

The RC14KB3M00 is the manufacturer-recommended substitute for the obsolete RC14JB3M00. Both parts are manufactured by Stackpole Electronics Inc and maintain identical electrical and mechanical specifications with the exception of tolerance. The substitute part is currently in active production status, ensuring availability for new designs and replacement applications.

Both parts maintain ROHS3 compliance and are unaffected by REACH regulations, supporting continued use in regulated manufacturing environments. The transition from the obsolete RC14JB3M00 to the active RC14KB3M00 presents no mechanical compatibility issues, as physical dimensions, termination configuration, and package type remain unchanged.

The tolerance difference (±10% versus ±5%) should be evaluated against circuit requirements. Applications where the original ±5% tolerance is critical may require additional circuit design considerations or component selection procedures to ensure performance specifications are maintained.

Frequently Asked Questions (FAQ)

Q: Can the RC14KB3M00 be used as a direct replacement for the RC14JB3M00?

A: Yes. The RC14KB3M00 is mechanically and electrically compatible with the RC14JB3M00. Both parts share identical resistance values, power ratings, physical dimensions, and package configurations. The primary difference is tolerance specification (±10% versus ±5%).

Q: What is the impact of the tolerance difference between these parts?

A: The RC14KB3M00 has a wider tolerance band (±10%) compared to the RC14JB3M00 (±5%). This means the actual resistance value may deviate further from the nominal 3 MOhms specification. Applications requiring tight tolerance control should evaluate whether this variance affects circuit performance.

Q: Are both parts RoHS compliant?

A: Yes. Both the RC14JB3M00 and RC14KB3M00 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Will the RC14KB3M00 fit in the same PCB footprint as the RC14JB3M00?

A: Yes. Both parts have identical axial package dimensions (0.094" Dia x 0.248" L / 2.40mm x 6.30mm) and two-terminal configurations, ensuring mechanical compatibility in existing PCB designs.

Q: Why is the RC14JB3M00 listed as obsolete?

A: The RC14JB3M00 has been discontinued by the manufacturer. The RC14KB3M00 remains in active production and serves as the current equivalent offering from Stackpole Electronics Inc.