RNF14FTC20R0 Equivalent & Substitute Parts

Part Overview

The RNF14FTC20R0 is a 20 Ohms ±1% 0.25W through hole resistor manufactured by Stackpole Electronics Inc. This metal film axial resistor features flame retardant coating and safety characteristics, designed for applications requiring precision resistance in compact form factors. The part maintains active product status with 817 units in current inventory. Substitute parts are identified to address packaging format preferences, enhanced power ratings, or alternative sourcing requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTC20R0

Stackpole Electronics IncIn Stock: 879RNF14FTC20R0 Datasheet

Current PartRFQ

RNMF14FTC20R0

Stackpole Electronics IncIn Stock: 75794RNMF14FTC20R0 Datasheet

MFR RecommendedRFQ

CMF5520R000FHEB

Vishay DaleIn Stock: 4847CMF5520R000FHEB Datasheet

UpgradeRFQ

CMF5020R000FHEB

Vishay DaleIn Stock: 23433CMF5020R000FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC20R0 are qualified based on the following electrical and mechanical parameters:

Core Compatibility Criteria:

• Resistance value: 20 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 (maintained across all substitutes)

Allowable Variations:

• Power rating: Equal or greater than 0.25W
• Operating temperature range: Equal or greater than -55°C ~ 155°C
• Physical dimensions: Variation permitted within axial package constraints
• Packaging format: Tape & Reel (TR), Cut Tape (CT), or equivalent

The three qualified substitutes maintain all core electrical parameters while offering alternative packaging formats or enhanced thermal capabilities.

Parameter Comparison

Engineering Selection Recommendations

RNMF14FTC20R0 (Stackpole Electronics Inc - Mini Series) This substitute maintains identical electrical specifications and operating temperature range as the primary part. The primary distinction is the reduced physical size (0.070" Dia x 0.130" L versus 0.093" Dia x 0.250" L) and Cut Tape packaging format. Selection is appropriate for space-constrained applications where the smaller form factor provides layout advantages. All compliance certifications remain equivalent.

CMF5520R000FHEB (Vishay Dale - Enhanced Power Rating) This substitute provides a 0.5W power rating compared to the 0.25W primary specification, with extended operating temperature range to 175°C. Physical dimensions remain comparable to the primary part (0.090" Dia x 0.240" L). This upgrade option is suitable for applications requiring thermal margin or higher power dissipation capability. All electrical parameters and compliance certifications are maintained.

CMF5020R000FHEB (Vishay Dale - Compact Form Factor) This substitute matches the 0.25W power rating and extends operating temperature to 175°C. The compact axial dimensions (0.065" Dia x 0.150" L) provide the smallest footprint among qualified substitutes. Selection is appropriate for space-critical designs requiring the same power specification as the primary part. All compliance certifications are maintained.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC20R0 be used as a direct replacement for RNF14FTC20R0? A: Yes. Both parts share identical electrical specifications (20 Ohms ±1%, 0.25W, ±50ppm/°C, -55°C ~ 155°C). The primary difference is physical size and packaging format. RNMF14FTC20R0 is smaller and supplied in Cut Tape format versus Tape & Reel for the primary part.

Q: What is the advantage of CMF5520R000FHEB over the primary part? A: CMF5520R000FHEB provides double the power rating (0.5W versus 0.25W) and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). Electrical resistance and tolerance remain identical. This part is suitable for applications requiring additional thermal headroom.

Q: Are the Vishay Dale substitutes electrically equivalent to the Stackpole primary part? A: Yes. CMF5520R000FHEB and CMF5020R000FHEB maintain the same resistance value (20 Ohms), tolerance (±1%), composition (Metal Film), and temperature coefficient (±50ppm/°C). Both extend the operating temperature range to 175°C and include moisture-resistant features.

Q: Does physical size affect substitution compatibility? A: Physical size differences do not affect electrical compatibility. However, board layout and mechanical mounting considerations may require evaluation. RNMF14FTC20R0 and CMF5020R000FHEB offer compact form factors, while CMF5520R000FHEB maintains dimensions closer to the primary part.

Q: Are all substitutes RoHS3 compliant? A: Yes. All substitute parts maintain ROHS3 Compliant status and REACH Unaffected designation, matching the primary part's regulatory compliance.

Q: What packaging formats are available across these parts? A: RNF14FTC20R0 is supplied in Tape & Reel (TR) format. All three substitutes are available in Cut Tape (CT) format, which may affect procurement and assembly processes.