RNF14FTC33K2 Equivalent & Substitute Parts

Part Overview

The RNF14FTC33K2 is a 33.2 kOhms ±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 construction with an operating temperature range of -55°C to 155°C. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent resistance values, tolerance specifications, and mechanical compatibility allow direct replacement in circuit applications.

Substiute Parts

RNF14FTC33K2

Stackpole Electronics IncIn Stock: 728RNF14FTC33K2 Datasheet

Current PartRFQ

CMF5533K200BEEK

Vishay DaleIn Stock: 937CMF5533K200BEEK Datasheet

UpgradeRFQ

CMF5533K200FHEB

Vishay DaleIn Stock: 2268CMF5533K200FHEB Datasheet

UpgradeRFQ

CMF5033K200FHEB

Vishay DaleIn Stock: 1999CMF5033K200FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC33K2 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 33.2 kOhms (exact match required)
• Composition: Metal Film
• Package type: Axial through-hole
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Tolerance: ±1% or tighter (±0.1% acceptable)
• Power rating: Equal to or greater than 0.25W
• Temperature coefficient: ±50ppm/°C or lower absolute value
• Operating temperature range: Must encompass or exceed -55°C to 155°C
• Packaging format: Tape & Reel, Cut Tape, or Bulk acceptable

Three substitute parts meet these criteria and are categorized by their relationship to the original specification.

Parameter Comparison

Engineering Selection Recommendations

CMF5033K200FHEB (Manufacturer Recommended Substitute)

This part is designated as the manufacturer-recommended substitute. It maintains identical power rating (0.25W) and tolerance (±1%) to the original RNF14FTC33K2, with extended operating temperature range (-55°C to 175°C). The Vishay Dale CMF50 series provides equivalent electrical performance with improved thermal stability. Physical dimensions are smaller (0.065" Dia x 0.150" L), which may require PCB layout verification for mechanical fit. ROHS3 compliance and Active product status confirm current availability and regulatory alignment.

CMF5533K200FHEB (Upgrade Option)

This upgrade substitute increases power rating to 0.5W (1/2W) while maintaining ±1% tolerance and ±50ppm/°C temperature coefficient. The extended operating temperature range (-55°C to 175°C) and moisture-resistant construction provide enhanced reliability margins. Physical dimensions (0.090" Dia x 0.240" L) are intermediate between the original and CMF50 series. Cut Tape packaging and 2240 Pcs inventory availability support production requirements. ROHS3 compliance confirmed.

CMF5533K200BEEK (Upgrade Option with Enhanced Tolerance)

This upgrade substitute combines 0.5W power rating with tighter ±0.1% tolerance and improved ±25ppm/°C temperature coefficient. Operating temperature range extends to -55°C to 175°C. Moisture-resistant construction and identical physical dimensions to CMF5533K200FHEB (0.090" Dia x 0.240" L) provide superior frequency stability and precision performance. Bulk packaging format available with 831 Pcs inventory. ROHS3 compliance confirmed.

Frequently Asked Questions (FAQ)

Q: Can CMF5033K200FHEB be used as a direct replacement for RNF14FTC33K2?

A: Yes. Both parts share identical resistance (33.2 kOhms), tolerance (±1%), power rating (0.25W), and temperature coefficient (±50ppm/°C). The CMF50 series has a smaller physical footprint (0.065" Dia x 0.150" L versus 0.093" Dia x 0.250" L), requiring PCB layout verification. Extended operating temperature range (-55°C to 175°C) provides additional margin.

Q: What is the difference between the two Vishay Dale upgrade options?

A: CMF5533K200FHEB maintains ±1% tolerance and ±50ppm/°C temperature coefficient with 0.5W power rating. CMF5533K200BEEK provides tighter ±0.1% tolerance and improved ±25ppm/°C temperature coefficient at the same 0.5W power rating. Both share identical physical dimensions (0.090" Dia x 0.240" L). Selection depends on circuit precision requirements.

Q: Are physical dimensions critical for substitution?

A: Yes. While all substitute parts are axial through-hole resistors with compatible lead spacing, dimensional variations affect PCB layout. CMF5033K200FHEB is smaller (0.065" Dia x 0.150" L). CMF5533K200FHEB and CMF5533K200BEEK are larger (0.090" Dia x 0.240" L) than the original RNF14FTC33K2 (0.093" Dia x 0.250" L). Verify clearance and routing before implementation.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All three substitute parts are ROHS3 compliant, matching the original RNF14FTC33K2 compliance status.

Q: What packaging formats are available for each substitute?

A: CMF5033K200FHEB is supplied in Cut Tape (CT) format. CMF5533K200FHEB is supplied in Cut Tape (CT) format. CMF5533K200BEEK is supplied in Bulk format. Original RNF14FTC33K2 is supplied in Tape & Reel (TR) format.