RNF14FTC47R5 Equivalent & Substitute Parts

Part Overview

The RNF14FTC47R5 is a 47.5 Ohm ±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-grade construction with an operating temperature range of -55°C to 155°C. The part is Active status and RoHS3 compliant. Substitute parts may be required due to inventory availability, packaging format preferences, or application-specific thermal requirements.

Substiute Parts

RNF14FTC47R5

Stackpole Electronics IncIn Stock: 1114RNF14FTC47R5 Datasheet

Current PartRFQ

CMF5547R500FHEB

Vishay DaleIn Stock: 5674CMF5547R500FHEB Datasheet

UpgradeRFQ

CMF5047R500FHEB

Vishay DaleIn Stock: 3581CMF5047R500FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by three critical parameters: resistance value, tolerance, and composition. All substitute parts must maintain 47.5 Ohms ±1% metal film construction to ensure electrical equivalence.

The substitute parts are grouped as follows:

CMF5547R500FHEB (Upgrade Option): Maintains identical resistance and tolerance with increased power rating (0.5W vs. 0.25W). Extended operating temperature range (-55°C ~ 175°C) and moisture-resistant features provide enhanced performance margins.

CMF5047R500FHEB (Direct Equivalent): Maintains identical resistance, tolerance, and power rating (0.25W). Smaller physical dimensions with extended operating temperature range and moisture-resistant features.

Both substitute parts are manufactured by Vishay Dale, feature identical temperature coefficient (±50ppm/°C), and maintain RoHS3 compliance and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

CMF5047R500FHEB is the direct functional equivalent, maintaining identical resistance, tolerance, and power rating specifications. This part is recommended for direct replacement applications where the original RNF14FTC47R5 specifications are required. The extended operating temperature range (-55°C ~ 175°C) and moisture-resistant coating provide additional environmental protection without altering electrical performance. RoHS3 compliance and REACH unaffected status match the original part.

CMF5547R500FHEB is suitable for applications where increased thermal headroom is beneficial. The doubled power rating (0.5W vs. 0.25W) allows operation at higher ambient temperatures or with greater power dissipation margins. This part maintains all other electrical specifications and compliance certifications.

Both substitute parts are Active status components with established supply availability.

Frequently Asked Questions (FAQ)

Q: Can CMF5547R500FHEB be used as a direct replacement for RNF14FTC47R5?

A: Yes. Both parts maintain 47.5 Ohms ±1% resistance and metal film composition. The increased power rating (0.5W vs. 0.25W) does not affect electrical equivalence and provides additional thermal margin. Physical dimensions differ slightly; verify PCB layout compatibility.

Q: What is the difference between CMF5047R500FHEB and CMF5547R500FHEB?

A: CMF5047R500FHEB maintains the original 0.25W power rating with smaller physical dimensions (0.065" Dia x 0.150" L). CMF5547R500FHEB provides 0.5W power rating with slightly larger dimensions (0.090" Dia x 0.240" L). Both maintain identical resistance and tolerance specifications.

Q: Are the substitute parts compatible with the original packaging requirements?

A: The original RNF14FTC47R5 is supplied in Tape & Reel (TR) format. Both substitute parts are supplied in Cut Tape (CT) format. Verify that your assembly process accommodates the different packaging format.

Q: Do the substitute parts maintain the same operating temperature range?

A: The substitute parts extend the operating temperature range to -55°C ~ 175°C compared to the original -55°C ~ 155°C. This provides additional thermal margin for high-temperature applications.

Q: Are all parts RoHS3 compliant?

A: Yes. RNF14FTC47R5, CMF5547R500FHEB, and CMF5047R500FHEB are all RoHS3 compliant and REACH unaffected.