RNF14FTC174K Equivalent & Substitute Parts

Part Overview

The RNF14FTC174K is a 174 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component is currently in active production status with 643 units available in stock. The part features flame retardant coating and safety-grade construction suitable for applications requiring precision resistance values with tight tolerance specifications. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when design requirements permit higher power ratings or enhanced environmental protection.

Substiute Parts

RNF14FTC174K

Stackpole Electronics IncIn Stock: 704RNF14FTC174K Datasheet

Current PartRFQ

CMF55174K00FHEB

Vishay DaleIn Stock: 2456CMF55174K00FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC174K is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 174 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package type: Axial
• Temperature coefficient: ±50ppm/°C

Allowable Variation Parameters:

• Power rating: Equal or higher than 0.25W
• Operating temperature range: Equal or higher maximum temperature
• Physical dimensions: Minor variations acceptable within axial package constraints
• Packaging format: Different tape/reel configurations acceptable

The CMF55174K00FHEB from Vishay Dale meets all mandatory matching criteria and provides an upgrade path with increased power rating (0.5W vs 0.25W) and extended maximum operating temperature (175°C vs 155°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTC174K and CMF55174K00FHEB are active production components with full ROHS3 compliance and REACH unaffected status, making them suitable for regulated applications. The CMF55174K00FHEB provides enhanced specifications through increased power dissipation capability (0.5W vs 0.25W) and extended maximum operating temperature (175°C vs 155°C), while maintaining identical electrical characteristics for resistance value, tolerance, and temperature coefficient. The CMF55174K00FHEB additionally incorporates moisture-resistant features beyond the base flame retardant coating. Physical dimensions are comparable within axial package tolerances. Selection between these parts depends on circuit power dissipation requirements and thermal environment specifications.

Frequently Asked Questions (FAQ)

Q: Can CMF55174K00FHEB replace RNF14FTC174K in all applications?

A: The CMF55174K00FHEB is electrically and mechanically compatible as a direct substitute. The higher power rating (0.5W vs 0.25W) and extended operating temperature range (175°C vs 155°C) make it suitable for applications where the original part is specified, provided circuit board layout accommodates the slightly smaller physical dimensions (0.090" Dia x 0.240" L vs 0.093" Dia x 0.250" L).

Q: What are the key differences between these parts?

A: Both parts share identical resistance value (174 kOhms), tolerance (±1%), composition (metal film), and temperature coefficient (±50ppm/°C). The CMF55174K00FHEB offers increased power rating, extended maximum operating temperature, and moisture-resistant coating. Packaging format differs: RNF14FTC174K uses Tape & Reel while CMF55174K00FHEB uses Cut Tape.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance differences exist between the two components.

Q: Does the smaller physical size of CMF55174K00FHEB affect circuit board compatibility?

A: The dimensional difference is minimal (0.003" diameter reduction, 0.010" length reduction). Axial package hole spacing remains standard. Verify board layout accommodates the slightly shorter component length if space constraints are critical.

Q: What packaging considerations apply when switching between these parts?

A: RNF14FTC174K is supplied in Tape & Reel format while CMF55174K00FHEB is supplied in Cut Tape format. This affects procurement and assembly processes but does not impact electrical or mechanical performance in the final application.