RNF14FTC165R Equivalent & Substitute Parts

Part Overview

The RNF14FTC165R is a 165 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 1045 units in current inventory. Substitute parts are identified to address availability constraints, extended temperature range requirements, or packaging format preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF14FTC165R

Stackpole Electronics IncIn Stock: 1129RNF14FTC165R Datasheet

Current PartRFQ

CMF55165R00FHEB

Vishay DaleIn Stock: 4636CMF55165R00FHEB Datasheet

UpgradeRFQ

CMF50165R00FHEB

Vishay DaleIn Stock: 673CMF50165R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC165R are qualified based on the following electrical and mechanical parameters:

Core Compatibility Criteria:

• Resistance value: 165 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Allowable Variations:

• Power rating: May be equal or higher than 0.25W
• Operating temperature range: May be equal or extended
• Physical dimensions: May vary within axial package constraints
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable for component selection
• Manufacturer: Different qualified manufacturers permitted

Two substitute parts meet these criteria: CMF55165R00FHEB (0.5W upgrade) and CMF50165R00FHEB (direct 0.25W equivalent).

Parameter Comparison

Engineering Selection Recommendations

CMF50165R00FHEB Selection: This part is the manufacturer-recommended direct equivalent. It maintains identical electrical specifications (165 Ohms ±1%, 0.25W, ±50ppm/°C) and meets all compliance requirements (ROHS3, REACH Unaffected). The extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C) provides additional thermal margin. Moisture-resistant construction offers enhanced environmental protection. Physical dimensions are smaller (0.065" Dia x 0.150" L) compared to the main part, suitable for space-constrained layouts. Cut Tape packaging format is standard for component procurement workflows.

CMF55165R00FHEB Selection: This upgrade option doubles the power rating to 0.5W (1/2W) while maintaining all other electrical parameters. Selection is appropriate for applications where thermal margin or power dissipation headroom is required. The extended operating temperature range (-55°C ~ 175°C) and moisture-resistant features provide additional environmental robustness. Larger physical dimensions (0.090" Dia x 0.240" L) require board layout verification. Highest current inventory (4555 units) ensures supply availability.

Both substitute parts are Active status products with full compliance documentation and are electrically and mechanically compatible with the RNF14FTC165R within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can CMF50165R00FHEB be used as a direct drop-in replacement for RNF14FTC165R?

A: Yes. Both parts share identical electrical specifications: 165 Ohms ±1%, 0.25W power rating, ±50ppm/°C temperature coefficient, and metal film composition. The smaller physical dimensions of the CMF50165R00FHEB (0.065" Dia x 0.150" L versus 0.093" Dia x 0.250" L) require verification of board layout clearances, but electrical performance is equivalent.

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

A: CMF50165R00FHEB is the direct electrical equivalent at 0.25W. CMF55165R00FHEB provides doubled power rating (0.5W) for applications requiring additional thermal capacity. Both extend the operating temperature range to -175°C and include moisture-resistant construction. Selection depends on thermal requirements and available board space.

Q: Are packaging format differences (Tape & Reel versus Cut Tape) significant?

A: Packaging format affects procurement and handling but not component performance. Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) is suitable for lower-volume or manual assembly workflows. Both formats contain identical components.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. Both CMF50165R00FHEB and CMF55165R00FHEB are ROHS3 Compliant and REACH Unaffected, matching the RNF14FTC165R compliance profile. All three parts carry EAR99 ECCN classification and 8533.21.0090 HTSUS code.

Q: What is the significance of the extended operating temperature range in the substitute parts?

A: The substitute parts operate to -55°C ~ 175°C compared to the main part's -55°C ~ 155°C range. This 20°C upper temperature extension provides additional thermal margin in high-temperature applications but does not affect electrical performance at standard operating conditions.