RNF14BAE3K32 Equivalent & Substitute Parts

Part Overview

The RNF14BAE3K32 is a 3.32 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 is currently in active production status with 1061 units available in inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

RNF14BAE3K32

Stackpole Electronics IncIn Stock: 1171RNF14BAE3K32 Datasheet

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CMF553K3200BEEB

Vishay DaleIn Stock: 2605CMF553K3200BEEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14BAE3K32 is determined by the following critical parameters:

• Resistance Value: Must be 3.32 kOhms
• Tolerance: Must be ±0.1% or tighter
• Composition: Must be Metal Film
• Package Type: Must be Axial
• Temperature Coefficient: Must be ±25ppm/°C or better
• Regulatory Compliance: Must maintain ROHS3 compliance

The CMF553K3200BEEB meets all substitution criteria. While it features a higher power rating (0.5W vs 0.25W) and extended operating temperature range (-55°C ~ 175°C vs -55°C ~ 155°C), these represent improvements that do not compromise circuit compatibility. The identical resistance, tolerance, composition, and temperature coefficient ensure functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14BAE3K32 and CMF553K3200BEEB are active production components with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The CMF553K3200BEEB provides enhanced specifications through increased power dissipation capability (0.5W vs 0.25W) and extended upper operating temperature limit (175°C vs 155°C). These characteristics make it suitable for applications where the original specification may be marginal or where thermal headroom is beneficial. The addition of moisture resistance in the CMF series provides supplementary environmental protection.

Selection between these parts should be based on application thermal requirements and packaging format availability. Both components maintain identical electrical performance through matching resistance, tolerance, and temperature coefficient specifications.

Frequently Asked Questions (FAQ)

Q: Can the CMF553K3200BEEB directly replace the RNF14BAE3K32 in existing designs?

A: Yes. Both components share identical resistance (3.32 kOhms), tolerance (±0.1%), composition (metal film), package type (axial), and temperature coefficient (±25ppm/°C). The higher power rating of the substitute represents a non-limiting improvement for circuit compatibility.

Q: What is the significance of the different power ratings?

A: The RNF14BAE3K32 is rated at 0.25W while the CMF553K3200BEEB is rated at 0.5W. In substitution scenarios, the higher power rating of the CMF part provides additional thermal margin and does not create compatibility issues. Power rating selection should be based on actual circuit dissipation requirements.

Q: Are there packaging differences between these parts?

A: Yes. The RNF14BAE3K32 is supplied in Tape & Box (TB) format, while the CMF553K3200BEEB is supplied in Cut Tape (CT) format. Both are axial through-hole components with compatible mechanical dimensions (RNF: 0.093" Dia x 0.250" L; CMF: 0.090" Dia x 0.240" L). Packaging format selection depends on assembly process requirements.

Q: Do both parts meet current regulatory standards?

A: Yes. Both the RNF14BAE3K32 and CMF553K3200BEEB are ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations for electronic component manufacturing and use.

Q: What is the temperature coefficient significance?

A: Both parts share an identical temperature coefficient of ±25ppm/°C, ensuring equivalent performance stability across the operating temperature range. This parameter is critical for precision applications requiring predictable resistance variation with temperature changes.