RNF14CTD33K2 Equivalent & Substitute Parts

Part Overview

The RNF14CTD33K2 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 is currently Active in product status and features flame retardant coating with safety certification. Equivalent and substitute parts are identified when circuit designs require component availability, inventory optimization, or performance parameter upgrades while maintaining functional compatibility in axial through-hole resistor applications.

Substiute Parts

RNF14CTD33K2

Stackpole Electronics IncIn Stock: 1132RNF14CTD33K2 Datasheet

Current PartRFQ

CMF5533K200BEEK

Vishay DaleIn Stock: 937CMF5533K200BEEK Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RNF14CTD33K2 is determined by the following critical parameters that must remain constant or improve:

Resistance value must equal 33.2 kOhms. Tolerance must be equal to or better (lower) than ±0.25%. Power rating must be equal to or greater than 0.25W. Package type must remain Axial for mechanical and electrical compatibility. Composition must be Metal Film. Operating temperature range must encompass or exceed -55°C ~ 155°C. RoHS3 compliance must be maintained.

The CMF5533K200BEEK from Vishay Dale qualifies as a substitute because it maintains the 33.2 kOhms resistance value, improves tolerance to ±0.1%, increases power rating to 0.5W (1/2W), retains axial package configuration, maintains metal film composition, extends operating temperature to -55°C ~ 175°C, and preserves ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14CTD33K2 and CMF5533K200BEEK are Active products with ROHS3 compliance and REACH Unaffected status, ensuring regulatory compliance for current and future applications. The CMF5533K200BEEK provides performance improvements including tighter tolerance (±0.1% versus ±0.25%), higher power dissipation capability (0.5W versus 0.25W), lower temperature coefficient (±25ppm/°C versus ±100ppm/°C), and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). Selection between these parts depends on circuit requirements for tolerance precision, thermal dissipation capacity, and temperature stability. Both components maintain identical resistance value and axial package configuration, ensuring direct mechanical and electrical interchangeability in through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can the CMF5533K200BEEK directly replace the RNF14CTD33K2 in existing designs?

A: Yes. Both components share identical 33.2 kOhms resistance value and axial package configuration. The substitute offers improved tolerance, higher power rating, and extended temperature range, making it functionally compatible for direct substitution in through-hole resistor applications.

Q: What are the physical dimension differences between these parts?

A: The RNF14CTD33K2 measures 0.093" Dia x 0.250" L (2.35mm x 6.35mm). The CMF5533K200BEEK measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). Both dimensions are within typical axial resistor tolerances and do not affect PCB layout compatibility.

Q: Does the substitute part maintain the same safety and flame retardant properties?

A: Yes. The CMF5533K200BEEK includes flame retardant coating and safety features equivalent to the main part, with the addition of moisture resistance. Both components meet ROHS3 compliance requirements.

Q: Why is the tolerance specification important for substitution?

A: Tolerance determines the acceptable resistance value range. The CMF5533K200BEEK's ±0.1% tolerance is tighter than the RNF14CTD33K2's ±0.25%, providing greater precision. Circuits requiring specific tolerance bands must verify compatibility with the substitute's tighter specification.

Q: Are there packaging differences between these parts?

A: The RNF14CTD33K2 is supplied in Tape & Reel (TR) packaging. The CMF5533K200BEEK is supplied in Bulk packaging. Packaging format does not affect component performance or interchangeability in circuit applications.