RNF14FTC2K80 Equivalent & Substitute Parts

Part Overview

The RNF14FTC2K80 is a 2.8 kOhms ±1% 0.25W axial through-hole resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production with 899 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, supply chain alternatives, or performance optimization within the allowed parameter ranges.

Substiute Parts

RNF14FTC2K80

Stackpole Electronics IncIn Stock: 940RNF14FTC2K80 Datasheet

Current PartRFQ

CMF552K8000FHEB

Vishay DaleIn Stock: 2201CMF552K8000FHEB Datasheet

UpgradeRFQ

CMF502K8000FHEB

Vishay DaleIn Stock: 2817CMF502K8000FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC2K80 are qualified based on the following electrical and mechanical parameters:

Core Electrical Equivalence:

• Resistance value: 2.8 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)

Mechanical Compatibility:

• Package type: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)

Allowed Variation Parameters:

• Power rating: May be equal or higher than 0.25W
• Operating temperature range: May be equal or wider than -55°C ~ 155°C
• Physical dimensions: May vary within axial package constraints
• Packaging format: May differ (Tape & Reel, Cut Tape, etc.)
• Manufacturer: May differ while maintaining electrical and mechanical specifications

The substitute parts CMF502K8000FHEB and CMF552K8000FHEB meet these criteria with identical electrical specifications and compatible axial package construction.

Parameter Comparison

Engineering Selection Recommendations

CMF502K8000FHEB (MFR Recommended Substitute): This part provides direct electrical and mechanical equivalence to the RNF14FTC2K80 with identical power rating (0.25W) and resistance specifications. The CMF502K8000FHEB offers an extended operating temperature range (-55°C ~ 175°C) and includes moisture-resistant features. Both parts maintain ROHS3 compliance and REACH unaffected status. Physical dimensions are smaller, which may provide layout advantages in space-constrained applications. This substitute is suitable for direct replacement in designs where the original specification is maintained.

CMF552K8000FHEB (Upgrade Substitute): This part maintains identical electrical specifications (2.8 kOhms, ±1%, ±50ppm/°C) but provides a higher power rating (0.5W versus 0.25W). The CMF552K8000FHEB is applicable in applications where increased power dissipation capability is beneficial or where thermal margin is required. Extended operating temperature range (-55°C ~ 175°C) and moisture-resistant construction are included. Both substitute parts are ROHS3 compliant and REACH unaffected. Selection between CMF502K8000FHEB and CMF552K8000FHEB depends on power dissipation requirements and available board space.

Frequently Asked Questions (FAQ)

Q: Can CMF502K8000FHEB be used as a direct replacement for RNF14FTC2K80? A: Yes. Both parts have identical resistance (2.8 kOhms), tolerance (±1%), power rating (0.25W), composition (metal film), and temperature coefficient (±50ppm/°C). The axial package type and two-termination configuration are identical. Physical dimensions differ slightly, but both are compatible with standard axial component footprints.

Q: What is the difference between CMF502K8000FHEB and CMF552K8000FHEB? A: The primary difference is power rating: CMF502K8000FHEB is rated at 0.25W (1/4W), while CMF552K8000FHEB is rated at 0.5W (1/2W). All other electrical parameters are identical. Physical dimensions also differ slightly due to the higher power rating of the CMF552K8000FHEB.

Q: Are there any compliance differences between the main part and substitutes? A: No. All three parts are ROHS3 compliant and REACH unaffected. ECCN and HTSUS classifications are identical across all parts.

Q: Can CMF552K8000FHEB be used in place of RNF14FTC2K80 in all applications? A: Yes, from an electrical and mechanical standpoint. The higher power rating (0.5W) is a superset capability of the original 0.25W specification. However, physical dimensions are slightly larger, which may affect board layout in space-constrained designs.

Q: What is the significance of the moisture-resistant feature in the substitute parts? A: The CMF502K8000FHEB and CMF552K8000FHEB include moisture-resistant construction, which is an additional feature not specified in the RNF14FTC2K80. This provides enhanced reliability in humid or moisture-prone environments but does not affect compatibility in standard applications.

Q: Do the substitute parts have different packaging formats? A: Yes. The RNF14FTC2K80 is supplied in Tape & Reel (TR) format, while both substitute parts are supplied in Cut Tape (CT) format. This affects procurement and assembly processes but does not impact electrical or mechanical performance.