RNF14FTD1K13 Equivalent & Substitute Parts

Part Overview

The RNF14FTD1K13 is a 1.13 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component is classified as Active product status with 4045 units currently in stock. Metal film resistors in this specification are used in precision analog circuits, signal conditioning, and measurement applications where tolerance and temperature stability are critical. Substitute parts may be required due to inventory constraints, supply chain disruptions, or application-specific performance requirements.

Substiute Parts

RNF14FTD1K13

Stackpole Electronics IncIn Stock: 4137RNF14FTD1K13 Datasheet

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CMF551K1300FHEB

Vishay DaleIn Stock: 1794CMF551K1300FHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RNF14FTD1K13 is permissible when the following electrical and mechanical parameters are maintained or exceeded:

• Resistance value: 1.13 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Power rating: Minimum 0.25W (higher ratings acceptable for thermal margin)
• Composition: Metal film (ensures stability and precision)
• Package: Axial through-hole (mechanical compatibility with PCB layout)
• Operating temperature range: Must encompass or exceed -55°C ~ 155°C
• Compliance: ROHS3 and REACH status must be maintained

The CMF551K1300FHEB qualifies as a direct substitute based on these criteria, with the additional benefit of enhanced power rating and improved temperature coefficient.

Parameter Comparison

Engineering Selection Recommendations

The CMF551K1300FHEB is a qualified substitute for the RNF14FTD1K13 based on the following engineering criteria:

Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment across supply chain transitions. The substitute part offers performance enhancements: the power rating increases from 0.25W to 0.5W, providing additional thermal margin in power dissipation scenarios. The temperature coefficient improves from ±100ppm/°C to ±50ppm/°C, delivering superior frequency stability and reduced drift over the extended operating temperature range of -55°C to 175°C.

Physical dimensions are comparable, with the substitute part slightly smaller in diameter and length, ensuring compatibility with standard PCB footprints designed for axial resistors. Both components are metal film construction with identical resistance and tolerance specifications, maintaining circuit performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can the CMF551K1300FHEB replace the RNF14FTD1K13 in existing designs?

A: Yes. Both components share identical resistance (1.13 kOhms) and tolerance (±1%) specifications. The substitute part is mechanically compatible with standard axial resistor footprints and electrically equivalent for circuit operation.

Q: What are the advantages of using the CMF551K1300FHEB?

A: The substitute offers a higher power rating (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). These enhancements provide greater design margin and stability.

Q: Are there any dimensional concerns when substituting?

A: The CMF551K1300FHEB is slightly smaller (0.090" Dia x 0.240" L) compared to the RNF14FTD1K13 (0.093" Dia x 0.250" L). This minor difference does not affect compatibility with standard axial resistor PCB layouts.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FTD1K13 and CMF551K1300FHEB are ROHS3 compliant and REACH unaffected, maintaining regulatory requirements for industrial and commercial applications.

Q: What is the temperature coefficient difference and why does it matter?

A: The CMF551K1300FHEB has a temperature coefficient of ±50ppm/°C compared to ±100ppm/°C for the RNF14FTD1K13. Lower temperature coefficient values indicate reduced resistance drift over temperature variations, improving circuit stability in precision measurement and analog signal processing applications.