RNF14BTC2K10 Equivalent & Substitute Parts

Part Overview

The RNF14BTC2K10 is a 2.1 kOhms ±0.1% 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 precision applications requiring tight tolerance specifications. The part is currently active in production with 936 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter ranges for this resistor category.

Substiute Parts

RNF14BTC2K10

Stackpole Electronics IncIn Stock: 980RNF14BTC2K10 Datasheet

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CMF552K1000BHEB

Vishay DaleIn Stock: 1164CMF552K1000BHEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14BTC2K10 is determined by the following critical parameters:

• Resistance value: 2.1 kOhms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The CMF552K1000BHEB qualifies as a substitute because it maintains all critical electrical parameters. The power rating upgrade from 0.25W to 0.5W represents an increase in thermal capability, which is acceptable in substitution scenarios. The extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C) provides additional environmental margin. Physical dimensions remain compatible with axial package specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14BTC2K10 and CMF552K1000BHEB maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The CMF552K1000BHEB provides equivalent electrical performance with enhanced thermal dissipation capability due to its higher power rating. The extended operating temperature range of the substitute part accommodates applications requiring operation at elevated temperatures up to 175°C. Physical dimensions are compatible with standard axial resistor footprints. Selection between these parts depends on application-specific thermal requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the CMF552K1000BHEB replace the RNF14BTC2K10 in existing designs?

A: Yes. Both parts maintain identical resistance (2.1 kOhms), tolerance (±0.1%), temperature coefficient (±50ppm/°C), and axial package configuration. The substitute part's higher power rating (0.5W versus 0.25W) and extended temperature range provide additional operational margin without affecting circuit performance.

Q: Are there physical compatibility concerns with the substitute part?

A: No. Both parts use axial through-hole packaging. The CMF552K1000BHEB dimensions (0.090" Dia x 0.240" L) are slightly smaller than the RNF14BTC2K10 (0.093" Dia x 0.250" L), ensuring compatibility with existing PCB layouts and component spacing.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14BTC2K10 and CMF552K1000BHEB are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial, commercial, and consumer applications.

Q: What is the significance of the moisture resistant feature on the substitute part?

A: The CMF552K1000BHEB includes moisture resistant construction as an additional feature. This provides enhanced reliability in humid or moisture-prone environments compared to the base RNF14BTC2K10 specification.

Q: Are there differences in packaging format between these parts?

A: Yes. The RNF14BTC2K10 is supplied in Tape & Reel (TR) format, while the CMF552K1000BHEB is supplied in Cut Tape (CT) format. Both formats are standard for axial resistor distribution and do not affect component functionality or performance.