RNF14FTC412R Equivalent & Substitute Parts

Part Overview

The RNF14FTC412R is a 412 Ohms ±1% 0.25W (1/4W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values with tight tolerance specifications. The part maintains Active product status with 626 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to component availability, procurement lead times, or design optimization needs.

Substiute Parts

RNF14FTC412R

Stackpole Electronics IncIn Stock: 685RNF14FTC412R Datasheet

Current PartRFQ

CMF55412R00FHEB

Vishay DaleIn Stock: 4390CMF55412R00FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC412R is determined by the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 412 Ohms (exact match required)
• Tolerance: ±1% (maintains circuit precision specifications)
• Temperature coefficient: ±50ppm/°C (ensures thermal stability)
• Composition: Metal film (provides required accuracy and stability)

Mechanical Compatibility Requirements:

• Package type: Axial (physical form factor for through-hole mounting)
• Number of terminations: 2 (standard lead configuration)

Compliance Requirements:

• RoHS3 Compliant status (regulatory requirement)
• REACH Unaffected status (material compliance)

The CMF55412R00FHEB qualifies as a substitute because it matches all electrical parameters and maintains axial package compatibility. The higher power rating (0.5W vs. 0.25W) represents an upgrade that does not compromise circuit function and provides additional thermal margin.

Parameter Comparison

Engineering Selection Recommendations

The CMF55412R00FHEB serves as a direct electrical substitute for the RNF14FTC412R. Both components maintain identical resistance values, tolerance specifications, and temperature coefficients required for precision circuit applications. Both parts are Active products with ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

The CMF55412R00FHEB provides an upgraded power rating of 0.5W compared to the 0.25W specification of the main part. This higher power dissipation capability does not introduce incompatibility and extends the thermal operating range to 175°C. The addition of moisture-resistant properties in the substitute part offers enhanced environmental protection without affecting electrical performance.

Physical dimensions differ slightly (0.090" Dia x 0.240" L for substitute versus 0.093" Dia x 0.250" L for main part), remaining within standard axial resistor form factors suitable for through-hole PCB mounting applications.

Frequently Asked Questions (FAQ)

Q: Can the CMF55412R00FHEB replace the RNF14FTC412R in all applications?

A: Yes. Both components share identical electrical specifications (412 Ohms ±1%, ±50ppm/°C temperature coefficient, metal film composition). The substitute's higher power rating and extended temperature range do not create incompatibility in circuits designed for the original part.

Q: What is the significance of the higher power rating in the substitute part?

A: The CMF55412R00FHEB is rated for 0.5W dissipation versus the RNF14FTC412R's 0.25W rating. This upgrade provides additional thermal margin and allows operation in higher-power applications without exceeding component limits. Circuits designed for 0.25W operation remain fully compatible.

Q: Are there physical mounting differences between these parts?

A: Both components use axial package configuration suitable for through-hole PCB mounting. Dimensional differences (0.090" Dia x 0.240" L versus 0.093" Dia x 0.250" L) fall within standard axial resistor tolerances and do not affect board layout compatibility.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the RNF14FTC412R and CMF55412R00FHEB are ROHS3 Compliant and REACH Unaffected, meeting current environmental and material compliance standards.

Q: What additional features does the substitute part provide?

A: The CMF55412R00FHEB includes moisture-resistant properties in addition to the flame retardant coating and safety features present in the main part. This enhancement provides improved environmental protection in humid or moisture-prone applications.