RNF14FTC348R Equivalent & Substitute Parts

Part Overview

The RNF14FTC348R is a 348 Ohm ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component is designed for general-purpose electronic applications requiring precision resistive elements with flame retardant coating and safety features. The part maintains Active product status with 1036 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RNF14FTC348R

Stackpole Electronics IncIn Stock: 1109RNF14FTC348R Datasheet

Current PartRFQ

CMF50348R00FHEB

Vishay DaleIn Stock: 3266CMF50348R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC348R is determined by the following critical parameters:

• Electrical Equivalence: Resistance value (348 Ohms), tolerance (±1%), and power rating (0.25W) must be identical
• Composition Match: Metal film construction required to maintain temperature coefficient and stability characteristics
• Package Compatibility: Axial through-hole package mandatory for PCB layout and assembly compatibility
• Temperature Performance: Operating temperature range must encompass or exceed the original specification (-55°C ~ 155°C minimum)
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status required for supply chain continuity
• Termination Configuration: Two-terminal axial configuration required

The CMF50348R00FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and enhanced operating temperature range (-55°C ~ 175°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTC348R and CMF50348R00FHEB maintain Active product status with full ROHS3 compliance and REACH unaffected certification. The CMF50348R00FHEB provides an extended operating temperature range to 175°C and includes moisture-resistant features, offering enhanced environmental protection. Selection between these parts should be based on application temperature requirements and environmental exposure conditions. Both components satisfy identical electrical and mechanical substitution criteria for standard through-hole resistor applications.

Frequently Asked Questions (FAQ)

Q: Can CMF50348R00FHEB replace RNF14FTC348R in existing designs? A: Yes. Both components share identical resistance (348 Ohms), tolerance (±1%), power rating (0.25W), composition (metal film), and axial package configuration. The CMF50348R00FHEB operates across an extended temperature range (-55°C ~ 175°C versus -55°C ~ 155°C), making it suitable for applications requiring higher temperature performance.

Q: Are there physical dimension differences between these parts? A: Yes. The RNF14FTC348R measures 0.093" diameter × 0.250" length (2.35mm × 6.35mm), while the CMF50348R00FHEB measures 0.065" diameter × 0.150" length (1.65mm × 3.81mm). The CMF50348R00FHEB is physically smaller, which may affect PCB layout and lead spacing in existing designs.

Q: Do both parts meet the same regulatory requirements? A: Yes. Both the RNF14FTC348R and CMF50348R00FHEB are ROHS3 compliant and REACH unaffected, satisfying identical regulatory compliance standards.

Q: What is the difference in packaging format? A: The RNF14FTC348R is supplied in Tape & Reel (TR) format, while the CMF50348R00FHEB is supplied in Cut Tape (CT) format. This affects procurement and assembly processes but does not impact electrical or mechanical performance.

Q: Are moisture-resistant features critical for substitution? A: The CMF50348R00FHEB includes moisture-resistant features not specified in the RNF14FTC348R. This enhancement provides additional environmental protection but is not required for electrical equivalence. Selection depends on application humidity exposure requirements.