RNF14BAC2K87 Equivalent & Substitute Parts

Part Overview

The RNF14BAC2K87 is a 2.87 kOhms ±0.1% metal film axial resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component is designed for precision applications requiring tight tolerance specifications and flame retardant construction. The part maintains Active product status with 881 units currently in stock. Substitute parts are identified to address inventory availability, extended operating temperature ranges, or enhanced performance characteristics while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14BAC2K87

Stackpole Electronics IncIn Stock: 933RNF14BAC2K87 Datasheet

Current PartRFQ

CMF552K8700BEEB

Vishay DaleIn Stock: 1736CMF552K8700BEEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 2.87 kOhms
• Tolerance: ±0.1%
• Composition: Metal Film

Mechanical Parameters (Must Match):

• Package type: Axial
• Number of terminations: 2

Allowable Variations:

• Power rating: Equal or greater than 0.25W
• Operating temperature range: Equal or extended
• Temperature coefficient: Equal or lower absolute value
• Physical dimensions: Minor variations acceptable within axial package constraints

The CMF552K8700BEEB qualifies as a substitute based on matching resistance, tolerance, composition, and package type while offering enhanced specifications in power rating (0.5W vs 0.25W) and operating temperature range (-55°C ~ 175°C vs -55°C ~ 155°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14BAC2K87 and CMF552K8700BEEB maintain Active product status and full compliance with ROHS3 and REACH regulations. The CMF552K8700BEEB provides enhanced specifications including doubled power dissipation capacity (0.5W vs 0.25W), extended maximum operating temperature (175°C vs 155°C), improved temperature coefficient (±25ppm/°C vs ±50ppm/°C), and additional moisture resistance features. Selection between these parts should be based on application thermal requirements, power dissipation needs, and environmental exposure conditions. Both components are suitable for precision applications requiring ±0.1% tolerance metal film construction.

Frequently Asked Questions (FAQ)

Q: Can CMF552K8700BEEB replace RNF14BAC2K87 in all applications?

A: Yes, provided the application does not require the specific physical dimensions or packaging format of the original part. The CMF552K8700BEEB maintains identical electrical specifications (2.87 kOhms ±0.1%) and axial package configuration while offering enhanced thermal and power handling capabilities.

Q: What are the physical dimension differences?

A: RNF14BAC2K87 measures 0.093" Dia x 0.250" L (2.35mm x 6.35mm). CMF552K8700BEEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). Both are axial package types with minor dimensional variations.

Q: Why does the substitute have a lower temperature coefficient?

A: The CMF552K8700BEEB exhibits ±25ppm/°C compared to ±50ppm/°C for the RNF14BAC2K87. This represents improved temperature stability and is an enhancement for precision applications.

Q: Are both parts suitable for high-temperature applications?

A: The RNF14BAC2K87 operates to 155°C maximum. The CMF552K8700BEEB extends to 175°C maximum. Selection depends on specific application temperature requirements.

Q: What is the significance of the doubled power rating?

A: The CMF552K8700BEEB is rated at 0.5W versus 0.25W for the RNF14BAC2K87. This allows the substitute to dissipate twice the power without thermal stress, beneficial in applications with higher current demands or thermal environments.