RNF14FTC33R2 Equivalent & Substitute Parts

Part Overview

The RNF14FTC33R2 is a 33.2 Ohm ±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, designed for applications requiring precision resistance in compact form factors. The part maintains Active product status with 1021 units in current inventory. Substitute parts are identified to address supply continuity, packaging preferences, or performance envelope requirements while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

RNF14FTC33R2

Stackpole Electronics IncIn Stock: 1074RNF14FTC33R2 Datasheet

Current PartRFQ

CMF5533R200FHEB

Vishay DaleIn Stock: 1932CMF5533R200FHEB Datasheet

UpgradeRFQ

CMF5033R200FHEB

Vishay DaleIn Stock: 1857CMF5033R200FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC33R2 are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 33.2 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Package Type: Axial (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Secondary Variation Parameters (allowed for substitution):

• Power Rating: 0.25W or higher
• Operating Temperature Range: -55°C minimum with upper limit of 155°C or higher
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT)
• Physical Dimensions: Variations within axial package constraints
• Manufacturer: Alternative qualified manufacturers

The identified substitutes maintain all primary criteria while offering enhanced specifications in power rating and operating temperature range, with alternative packaging formats for supply chain flexibility.

Parameter Comparison

Engineering Selection Recommendations

CMF5033R200FHEB (MFR Recommended): This substitute maintains identical electrical specifications and power rating to the RNF14FTC33R2 while offering extended operating temperature range (-55°C ~ 175°C) and enhanced moisture resistance. The part is manufactured by Vishay Dale, an established supplier with ROHS3 compliance and Active product status. Physical dimensions are reduced (0.065" Dia x 0.150" L versus 0.093" Dia x 0.250" L), which may provide layout advantages in space-constrained applications. Cut Tape packaging offers flexibility for automated assembly processes.

CMF5533R200FHEB (Upgrade): This substitute provides doubled power rating (0.5W versus 0.25W) while maintaining all other electrical parameters. The extended operating temperature range (-55°C ~ 175°C) and moisture-resistant construction offer enhanced environmental performance. This option is suitable for applications requiring thermal margin or higher dissipation capability. Physical dimensions are comparable to the main part (0.090" Dia x 0.240" L). Vishay Dale manufacturing and ROHS3 compliance ensure regulatory alignment.

Both substitutes are Active products with substantial inventory availability and meet all regulatory requirements specified for the original component.

Frequently Asked Questions (FAQ)

Q: Can CMF5033R200FHEB be used as a direct replacement for RNF14FTC33R2?

A: Yes. Both parts share identical resistance (33.2 Ohms), tolerance (±1%), power rating (0.25W), temperature coefficient (±50ppm/°C), and composition (metal film). The CMF5033R200FHEB offers extended operating temperature range and moisture resistance. Physical dimensions differ, but both are axial through-hole packages suitable for standard PCB mounting.

Q: What is the difference between the two substitute options?

A: CMF5033R200FHEB matches the original power rating (0.25W) with reduced physical size. CMF5533R200FHEB provides doubled power rating (0.5W) with slightly larger dimensions. Both maintain identical electrical specifications and offer enhanced environmental performance compared to the original part.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) packaging formats are logistics and assembly considerations only. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both CMF5533R200FHEB and CMF5033R200FHEB are ROHS3 Compliant, matching the compliance status of the RNF14FTC33R2.

Q: What is the temperature coefficient significance?

A: All three parts share ±50ppm/°C temperature coefficient, ensuring consistent resistance stability across temperature variations. This parameter is critical for precision applications and remains unchanged across all options.

Q: Can I use CMF5533R200FHEB in place of CMF5033R200FHEB?

A: Yes, with consideration for thermal design. CMF5533R200FHEB provides higher power dissipation capability (0.5W versus 0.25W) and is electrically compatible. Physical dimensions are slightly larger (0.090" Dia x 0.240" L versus 0.065" Dia x 0.150" L), which may require layout verification in space-constrained designs.