RNF14BTC33K2 Equivalent & Substitute Parts

Part Overview

The RNF14BTC33K2 is a 33.2 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 and stable performance across industrial temperature ranges. The part maintains Active product status with full RoHS3 compliance and REACH unaffected certification. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

RNF14BTC33K2

Stackpole Electronics IncIn Stock: 787RNF14BTC33K2 Datasheet

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CMF5533K200BEEK

Vishay DaleIn Stock: 937CMF5533K200BEEK Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14BTC33K2 are qualified based on the following electrical and mechanical parameters:

Core Compatibility Criteria:

• Resistance value: 33.2 kOhms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)

Allowable Parameter Variations:

• Power rating: Equal to or greater than 0.25W
• Temperature coefficient: Equal to or lower absolute value
• Operating temperature range: Equal to or exceeding -55°C to 155°C minimum
• Regulatory compliance: RoHS3 and REACH status maintained

The CMF5533K200BEEK qualifies as a substitute based on matching all core compatibility criteria while offering enhanced specifications in power rating (0.5W vs 0.25W) and improved temperature coefficient (±25ppm/°C vs ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14BTC33K2 and CMF5533K200BEEK maintain Active product status with full regulatory compliance (RoHS3 and REACH). The CMF5533K200BEEK provides enhanced thermal performance through a higher power rating (0.5W vs 0.25W) and superior temperature stability (±25ppm/°C vs ±50ppm/°C). Physical dimensions are comparable with the substitute slightly smaller in diameter and length. Selection between these parts should be based on application-specific thermal dissipation requirements and available board space. Both components are suitable for precision circuit applications requiring ±0.1% tolerance metal film resistors in axial configuration.

Frequently Asked Questions (FAQ)

Q: Can CMF5533K200BEEK replace RNF14BTC33K2 in existing designs? A: Yes. Both parts share identical resistance value (33.2 kOhms), tolerance (±0.1%), composition (metal film), and axial package configuration. The substitute offers equal or superior electrical characteristics across all specified parameters.

Q: What is the significance of the higher power rating in the substitute? A: The CMF5533K200BEEK is rated at 0.5W compared to the RNF14BTC33K2 at 0.25W. This provides greater thermal headroom and allows operation in higher dissipation environments without exceeding rated specifications.

Q: Are there physical compatibility concerns? A: The CMF5533K200BEEK is slightly smaller (0.090" Dia x 0.240" L vs 0.093" Dia x 0.250" L). Both maintain standard axial through-hole configuration with 2 terminations. Physical compatibility depends on specific PCB layout and mounting constraints.

Q: Do both parts meet the same regulatory requirements? A: Yes. Both RNF14BTC33K2 and CMF5533K200BEEK are RoHS3 compliant and REACH unaffected, meeting equivalent regulatory standards.

Q: What is the difference in temperature coefficient? A: The CMF5533K200BEEK has a temperature coefficient of ±25ppm/°C compared to ±50ppm/°C for the RNF14BTC33K2. Lower temperature coefficient indicates superior stability across temperature variations, beneficial for precision applications.

Q: What is the extended operating temperature range of the substitute? A: The CMF5533K200BEEK operates from -55°C to 175°C, compared to -55°C to 155°C for the RNF14BTC33K2, providing 20°C additional high-temperature capability.