RNF14CTC33K2 Equivalent & Substitute Parts

Part Overview

The RNF14CTC33K2 is a 33.2 kOhms ±0.25% 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 in compact axial packages. The part maintains Active product status with full RoHS3 compliance and REACH unaffected certification. Substitute parts are identified when equivalent resistance values, tolerance specifications, and package configurations meet or exceed the electrical and mechanical requirements of the original design.

Substiute Parts

RNF14CTC33K2

Stackpole Electronics IncIn Stock: 949RNF14CTC33K2 Datasheet

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CMF5533K200BEEK

Vishay DaleIn Stock: 937CMF5533K200BEEK Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14CTC33K2 is determined by the following criteria:

Resistance value must equal 33.2 kOhms with no deviation. Tolerance must be equal to or tighter than ±0.25% to maintain circuit precision requirements. Power rating must be equal to or greater than 0.25W to ensure thermal performance. Package configuration must remain Axial to preserve mechanical compatibility with existing PCB layouts. Composition must be Metal Film to maintain electrical stability characteristics. Operating temperature range must encompass or exceed -55°C ~ 155°C. All substitute parts must maintain RoHS3 compliance and REACH unaffected status.

The CMF5533K200BEEK meets all substitution criteria through equivalent resistance, superior tolerance (±0.1%), increased power rating (0.5W), and compatible axial package configuration.

Parameter Comparison

Engineering Selection Recommendations

The CMF5533K200BEEK qualifies as a direct substitute for the RNF14CTC33K2 based on matched resistance value, superior tolerance specification, and compatible axial package configuration. Both components maintain Active product status with full RoHS3 compliance and REACH unaffected certification. The substitute part provides enhanced performance through increased power rating (0.5W versus 0.25W), improved temperature coefficient (±25ppm/°C versus ±50ppm/°C), and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). Moisture resistant coating on the substitute part provides additional environmental protection. Physical dimensions remain compatible with standard axial component footprints, with the substitute part featuring slightly reduced diameter and length specifications.

Frequently Asked Questions (FAQ)

Q: Can the CMF5533K200BEEK replace the RNF14CTC33K2 in existing designs?

A: Yes. Both components share identical 33.2 kOhms resistance values, compatible axial package configurations, and equivalent mechanical footprints. The substitute part meets or exceeds all electrical specifications of the original component.

Q: What is the tolerance difference between these parts?

A: The RNF14CTC33K2 specifies ±0.25% tolerance, while the CMF5533K200BEEK provides ±0.1% tolerance. The substitute part offers tighter tolerance, resulting in improved circuit precision.

Q: Does the increased power rating of the substitute part affect circuit operation?

A: No. The 0.5W rating of the CMF5533K200BEEK exceeds the 0.25W requirement of the original design. Higher power ratings do not negatively impact circuit function; they provide additional thermal margin and reliability.

Q: Are the physical dimensions compatible?

A: Yes. Both components use axial package configuration. The CMF5533K200BEEK features slightly reduced dimensions (0.090" Dia x 0.240" L versus 0.093" Dia x 0.250" L), which remain compatible with standard axial component PCB layouts.

Q: Do both parts meet regulatory compliance requirements?

A: Yes. Both the RNF14CTC33K2 and CMF5533K200BEEK maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory standards for electronic component manufacturing and use.

Q: What is the temperature coefficient difference?

A: The RNF14CTC33K2 has a temperature coefficient of ±50ppm/°C, while the CMF5533K200BEEK specifies ±25ppm/°C. The substitute part exhibits superior temperature stability across the operating range.