RNF14FTD48K7 Equivalent & Substitute Parts

Part Overview

The RNF14FTD48K7 is a 48.7 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-rated construction, designed for applications requiring precision resistance values in compact form factors. The part maintains Active product status with 961 units in current inventory. Substitute parts are identified to address availability, performance upgrades, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTD48K7

Stackpole Electronics IncIn Stock: 988RNF14FTD48K7 Datasheet

Current PartRFQ

CMF5548K700FHEB

Vishay DaleIn Stock: 2732CMF5548K700FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTD48K7 are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 48.7 kOhms
• Tolerance: ±1%
• Composition: Metal Film

Mechanical Parameters (Must Match):

• Package type: Axial through-hole
• Number of terminations: 2

Allowable Variations:

• Power rating: May be equal or higher (upgrade acceptable)
• Temperature coefficient: May be equal or lower (tighter tolerance acceptable)
• Operating temperature range: May be equal or wider (extended range acceptable)
• Physical dimensions: Minor variations acceptable within axial package constraints
• Packaging format: Different packaging acceptable (Tape & Reel to Cut Tape conversion)

Compliance Requirements:

• RoHS3 Compliant status maintained
• REACH Unaffected status maintained

Parameter Comparison

Engineering Selection Recommendations

The CMF5548K700FHEB from Vishay Dale qualifies as a direct substitute for the RNF14FTD48K7. Both components maintain identical electrical specifications (48.7 kOhms ±1% metal film construction) and axial package configuration. The substitute provides performance enhancements including doubled power dissipation capacity (0.5W vs 0.25W), improved temperature coefficient (±50ppm/°C vs ±100ppm/°C), and extended operating temperature range (-55°C to 175°C vs -55°C to 155°C). Both parts maintain ROHS3 compliance and REACH Unaffected status. Physical dimensions are comparable within axial package tolerances. The substitute includes moisture-resistant features in addition to flame retardant coating. Selection between these parts depends on application power dissipation requirements and thermal environment specifications.

Frequently Asked Questions (FAQ)

Q: Can the CMF5548K700FHEB replace the RNF14FTD48K7 in existing designs?

A: Yes. Both components share identical resistance value (48.7 kOhms), tolerance (±1%), composition (metal film), and axial package configuration. The substitute is mechanically and electrically compatible for direct substitution in circuit board layouts.

Q: What is the primary difference between these two resistors?

A: The CMF5548K700FHEB has a higher power rating (0.5W vs 0.25W), lower temperature coefficient (±50ppm/°C vs ±100ppm/°C), and wider operating temperature range (-55°C to 175°C vs -55°C to 155°C). The substitute also includes moisture-resistant features.

Q: Are there any packaging considerations when switching between these parts?

A: The main part is supplied in Tape & Reel format while the substitute is supplied in Cut Tape format. Both are axial through-hole components with comparable physical dimensions (0.093" vs 0.090" diameter; 0.250" vs 0.240" length). Packaging format does not affect circuit board compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FTD48K7 and CMF5548K700FHEB are ROHS3 Compliant and REACH Unaffected, meeting equivalent regulatory requirements.

Q: When should I select the substitute over the original part?

A: Select the CMF5548K700FHEB when applications require higher power dissipation capability, tighter temperature coefficient tolerance, or operation in extended temperature environments. Select the RNF14FTD48K7 when the original specification is explicitly required or when inventory availability of the original part is prioritized.