RNF14FTC1K00 Equivalent & Substitute Parts

Part Overview

The RNF14FTC1K00 is a 1 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, operating across -55°C to 155°C. The part is Active status and ROHS3 compliant. Substitute parts are identified to address packaging availability, enhanced performance specifications, or alternative sourcing requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTC1K00

Stackpole Electronics IncIn Stock: 929RNF14FTC1K00 Datasheet

Current PartRFQ

RNMF14FTC1K00

Stackpole Electronics IncIn Stock: 115669RNMF14FTC1K00 Datasheet

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CMF551K0000BEEB

Vishay DaleIn Stock: 9189CMF551K0000BEEB Datasheet

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CMF551K0000BEEK

Vishay DaleIn Stock: 1091CMF551K0000BEEK Datasheet

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CMF551K0000BHEB

Vishay DaleIn Stock: 3207CMF551K0000BHEB Datasheet

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CMF551K0000BHEB70

Vishay DaleIn Stock: 1926CMF551K0000BHEB70 Datasheet

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CMF551K0000FEEK

Vishay DaleIn Stock: 1225CMF551K0000FEEK Datasheet

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CMF551K0000FHEA

Vishay DaleIn Stock: 9466CMF551K0000FHEA Datasheet

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CMF551K0000FHEB

Vishay DaleIn Stock: 8107CMF551K0000FHEB Datasheet

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CMF501K0000FHEB

Vishay DaleIn Stock: 7125CMF501K0000FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are categorized based on the following allowed parameters:

Direct Equivalent (Same Electrical & Mechanical Specifications):

• RNMF14FTC1K00 (Stackpole Electronics Inc, RNMF Mini series): Identical electrical specifications with reduced physical dimensions (0.070" Dia x 0.130" L vs. 0.093" Dia x 0.250" L). Packaging differs (Cut Tape vs. Tape & Reel).

Upgraded Performance (Enhanced Tolerance & Power Rating):

• CMF551K0000BEEB, CMF551K0000BEEK, CMF551K0000BHEB, CMF551K0000BHEB70, CMF551K0000FEEK, CMF551K0000FHEA, CMF551K0000FHEB (Vishay Dale, CMF series): All rated at 0.5W (1/2W) with improved tolerance specifications (±0.1% for most variants). Operating temperature extends to 175°C. Physical dimensions remain compatible (0.090" Dia x 0.240" L).

Direct Equivalent with Enhanced Features (Same Power Rating, Improved Tolerance):

• CMF501K0000FHEB (Vishay Dale, CMF50 series): Maintains 0.25W (1/4W) power rating with ±1% tolerance. Reduced physical dimensions (0.065" Dia x 0.150" L). Enhanced moisture resistance and extended operating temperature to 175°C.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): RNMF14FTC1K00 provides equivalent electrical specifications with reduced physical footprint. Both Stackpole and Vishay Dale parts maintain Active product status and ROHS3 compliance. Selection depends on packaging requirements and PCB space constraints.

For Enhanced Reliability (Improved Tolerance & Temperature Range): CMF501K0000FHEB maintains the 0.25W power rating with ±1% tolerance while extending operating temperature to 175°C and reducing physical dimensions. This part is suitable for applications requiring improved thermal performance without power rating upgrades.

For Upgraded Performance (Higher Power & Tighter Tolerance): CMF55 series parts (CMF551K0000BEEB, CMF551K0000BHEB, CMF551K0000FHEA, CMF551K0000FHEB) offer 0.5W power rating with ±0.1% to ±1% tolerance options and extended temperature range to 175°C. These are applicable when circuit design permits higher power dissipation or when precision tolerance is required.

All substitute parts are Active status, ROHS3 compliant, and feature flame retardant coating with moisture resistance. Selection should account for PCB layout compatibility, thermal management requirements, and tolerance specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC1K00 replace RNF14FTC1K00 directly? A: Yes. RNMF14FTC1K00 provides identical electrical specifications (1 kΩ, ±1%, 0.25W, ±50ppm/°C, -55°C to 155°C). The primary difference is reduced physical size (0.070" Dia x 0.130" L vs. 0.093" Dia x 0.250" L) and packaging format (Cut Tape vs. Tape & Reel). PCB layout must accommodate the smaller footprint.

Q: What is the advantage of CMF501K0000FHEB over the original part? A: CMF501K0000FHEB maintains identical electrical specifications but extends operating temperature to 175°C (vs. 155°C) and includes moisture resistance. Physical dimensions are further reduced (0.065" Dia x 0.150" L), enabling compact designs. Power rating remains 0.25W.

Q: When should CMF55 series parts be selected? A: CMF55 series parts are selected when circuit design permits 0.5W power dissipation or when tighter tolerance (±0.1%) is required. These parts extend operating temperature to 175°C and provide enhanced thermal margin. Physical dimensions (0.090" Dia x 0.240" L) are compatible with standard 1/4W resistor footprints.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and are Active status products. Flame retardant coating and safety construction are consistent across all variants.

Q: What packaging options are available? A: Substitute parts are available in Cut Tape (CT), Bulk, and Tape & Reel (TR) formats. Selection depends on assembly process requirements and inventory management. Cut Tape is standard for automated pick-and-place operations.

Q: Can CMF55 series parts be used in applications designed for 1/4W resistors? A: Yes. CMF55 series parts are physically compatible with 1/4W resistor footprints (0.090" Dia x 0.240" L dimensions are within standard tolerance). The 0.5W power rating provides additional thermal margin without affecting circuit function. Verify PCB layout clearances for the slightly larger diameter.