RNF14FTC2K61 Equivalent & Substitute Parts

Part Overview

The RNF14FTC2K61 is a 2.61 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-grade construction, designed for applications requiring precision resistance values with reliable performance across industrial temperature ranges. The part maintains Active product status with 831 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary component becomes unavailable or when application requirements necessitate enhanced specifications such as increased power rating or extended operating temperature range.

Substiute Parts

RNF14FTC2K61

Stackpole Electronics IncIn Stock: 879RNF14FTC2K61 Datasheet

Current PartRFQ

CMF552K6100FHEB

Vishay DaleIn Stock: 6382CMF552K6100FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC2K61 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance Value: 2.61 kOhms (exact match required)
• Tolerance: ±1% (precision grade must be maintained)
• Composition: Metal Film (electrical characteristics and stability requirements)
• Package Type: Axial (mechanical and circuit board compatibility)
• Temperature Coefficient: ±50ppm/°C (frequency response and stability specifications)

Allowable Variation Parameters:

• Power Rating: May be equal or higher than 0.25W
• Operating Temperature Range: May be equal or extended beyond -55°C ~ 155°C
• Features: May include additional protective characteristics (moisture resistance, enhanced flame retardancy)
• Compliance Standards: Must maintain or exceed RoHS3 compliance level

The CMF552K6100FHEB qualifies as a direct substitute based on matching all mandatory parameters while providing enhanced power rating (0.5W vs. 0.25W) and extended maximum operating temperature (175°C vs. 155°C).

Parameter Comparison

Engineering Selection Recommendations

The CMF552K6100FHEB from Vishay Dale is a qualified substitute for the RNF14FTC2K61. Selection between these components should be based on the following engineering criteria:

Select RNF14FTC2K61 when:

• Exact physical dimensions are critical for circuit board layout
• Power dissipation is limited to 0.25W maximum
• Operating temperature does not exceed 155°C
• Stackpole Electronics Inc supply chain is preferred

Select CMF552K6100FHEB when:

• Higher power dissipation capability (0.5W) is beneficial for circuit margin
• Extended operating temperature range to 175°C is required
• Moisture-resistant construction is specified for the application environment
• Vishay Dale supply chain availability is advantageous
• Slightly reduced physical footprint is acceptable

Both components maintain ROHS3 compliance and identical electrical specifications for resistance value, tolerance, and temperature coefficient, ensuring functional equivalence in precision applications.

Frequently Asked Questions (FAQ)

Q: Can CMF552K6100FHEB be used as a direct replacement for RNF14FTC2K61 in existing circuit boards?

A: Yes. Both components are axial through-hole resistors with identical resistance values (2.61 kOhms), tolerance (±1%), and temperature coefficient (±50ppm/°C). The CMF552K6100FHEB has slightly smaller physical dimensions (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L), which presents no compatibility issues for standard through-hole mounting. The higher power rating (0.5W vs. 0.25W) and extended temperature range are backward-compatible enhancements.

Q: What is the significance of the power rating difference between these parts?

A: The RNF14FTC2K61 is rated at 0.25W (1/4W), while the CMF552K6100FHEB is rated at 0.5W (1/2W). This means the substitute can safely dissipate twice the power without exceeding its temperature limits. In applications where the original part operates near its power limit, the substitute provides additional thermal margin and reliability. If the circuit dissipates less than 0.25W through the resistor, both parts perform identically.

Q: Are there any compliance or certification differences between these parts?

A: Both components are ROHS3 compliant and feature flame retardant coating with safety-grade construction. The CMF552K6100FHEB includes additional moisture-resistant properties, which may be beneficial in humid or corrosive environments but does not affect substitution eligibility in standard applications.

Q: How do the operating temperature ranges affect substitution decisions?

A: The RNF14FTC2K61 operates from -55°C to 155°C, while the CMF552K6100FHEB extends to 175°C maximum. If your application requires operation above 155°C, the substitute is necessary. For applications within the -55°C to 155°C range, both parts are functionally equivalent. The extended range of the substitute does not introduce any compatibility issues.

Q: What packaging differences exist between these components?

A: The RNF14FTC2K61 is supplied in Tape & Reel (TR) packaging, while the CMF552K6100FHEB is supplied in Cut Tape (CT) packaging. These are different distribution formats but do not affect the component's electrical or mechanical performance. Selection between packaging types depends on assembly process requirements and inventory management preferences.