RNF14CAC3K32 Equivalent & Substitute Parts

Part Overview

The RNF14CAC3K32 is a 3.32 kOhms ±0.25% 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 ROHS3 compliance. Substitute parts are identified when equivalent resistance values, compatible package types, and acceptable tolerance specifications are required for circuit design flexibility, inventory management, or supply chain optimization.

Substiute Parts

RNF14CAC3K32

Stackpole Electronics IncIn Stock: 879RNF14CAC3K32 Datasheet

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CMF553K3200BEEB

Vishay DaleIn Stock: 2605CMF553K3200BEEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14CAC3K32 are qualified based on the following criteria:

Resistance value must be identical at 3.32 kOhms. Package configuration must remain Axial to ensure mechanical and electrical compatibility with existing PCB layouts. Composition must be Metal Film to maintain performance characteristics. Tolerance specifications must be equal to or tighter than ±0.25% to preserve circuit accuracy. Power rating must be equal to or greater than 0.25W to ensure thermal performance. RoHS3 compliance is required for regulatory alignment. Operating temperature range must encompass the minimum specification of -55°C ~ 155°C.

Parameter Comparison

Engineering Selection Recommendations

The CMF553K3200BEEB qualifies as a direct substitute for the RNF14CAC3K32 based on matching resistance value, package configuration, and composition. The substitute part provides enhanced specifications: tighter tolerance (±0.1% versus ±0.25%), higher power rating (0.5W versus 0.25W), extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C), and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C). Both parts maintain ROHS3 compliance and metal film construction. The substitute part includes moisture-resistant features in addition to flame retardant coating. Selection between these parts depends on circuit requirements for tolerance precision, thermal dissipation capacity, and environmental operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the CMF553K3200BEEB replace the RNF14CAC3K32 in existing designs?

A: Yes. Both parts share identical resistance value (3.32 kOhms), metal film composition, and axial package configuration. The substitute part meets or exceeds all critical electrical parameters of the original part.

Q: What are the tolerance differences between these parts?

A: The RNF14CAC3K32 has ±0.25% tolerance, while the CMF553K3200BEEB has ±0.1% tolerance. The substitute part provides tighter tolerance, which may improve circuit accuracy in precision applications.

Q: Are there physical dimension differences?

A: The RNF14CAC3K32 measures 0.093" Dia x 0.250" L (2.35mm x 6.35mm). The CMF553K3200BEEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). Both are axial package format with minimal dimensional variation suitable for standard PCB layouts.

Q: What is the power rating difference?

A: The RNF14CAC3K32 is rated at 0.25W (1/4W), while the CMF553K3200BEEB is rated at 0.5W (1/2W). The substitute part can dissipate twice the thermal power, providing additional margin in applications with higher current or ambient temperature conditions.

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both the RNF14CAC3K32 and CMF553K3200BEEB are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing.

Q: What is the temperature coefficient difference?

A: The RNF14CAC3K32 has a temperature coefficient of ±50ppm/°C, while the CMF553K3200BEEB has ±25ppm/°C. The substitute part exhibits half the resistance change per degree Celsius, providing improved stability across temperature variations.