RNF12FTC165K Equivalent & Substitute Parts

Part Overview

The RNF12FTC165K is a 165 kOhms ±1% 0.5W 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 values with stable performance across industrial temperature ranges. The part is currently in active production status with 864 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and compliance certifications align with the original component requirements.

Substiute Parts

RNF12FTC165K

Stackpole Electronics IncIn Stock: 896RNF12FTC165K Datasheet

Current PartRFQ

CMF55165K00FHEB

Vishay DaleIn Stock: 1077CMF55165K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC165K is determined by the following critical parameters:

• Electrical Specifications: Resistance value (165 kOhms), tolerance (±1%), and power rating (0.5W) must be identical
• Composition & Construction: Metal film composition with axial package configuration
• Environmental Characteristics: Temperature coefficient (±50ppm/°C) and operating temperature range compatibility
• Safety & Compliance: Flame retardant coating, safety features, and RoHS3 compliance status
• Mechanical Compatibility: Axial through-hole termination with 2 leads

The CMF55165K00FHEB from Vishay Dale meets all substitution criteria, maintaining identical electrical performance while offering enhanced moisture resistance and extended upper operating temperature capability.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC165K and CMF55165K00FHEB are active production components with full RoHS3 compliance. Selection between these parts should be based on:

• Thermal Environment: The CMF55165K00FHEB supports operation to 175°C, providing 20°C additional margin above the RNF12FTC165K specification of 155°C
• Moisture Exposure: Applications requiring moisture resistance benefit from the CMF55165K00FHEB's enhanced moisture-resistant coating
• Physical Space Constraints: The CMF55165K00FHEB features a smaller axial body (0.090" Dia x 0.240" L) compared to the RNF12FTC165K (0.108" Dia x 0.344" L), enabling use in compact layouts
• Supply Continuity: Both parts maintain active inventory status, supporting long-term component availability

Frequently Asked Questions (FAQ)

Q: Can CMF55165K00FHEB directly replace RNF12FTC165K in existing designs?

A: Yes. Both components share identical electrical specifications (165 kOhms ±1%, 0.5W, ±50ppm/°C), metal film composition, and axial package configuration. The CMF55165K00FHEB is a direct functional equivalent with enhanced environmental protection.

Q: What is the significance of the smaller physical dimensions of the CMF55165K00FHEB?

A: The CMF55165K00FHEB measures 0.090" Dia x 0.240" L versus the RNF12FTC165K at 0.108" Dia x 0.344" L. This 28% reduction in length enables installation in space-constrained PCB layouts while maintaining identical electrical performance.

Q: Does the extended operating temperature range of the CMF55165K00FHEB affect circuit behavior?

A: No. Both components maintain the same temperature coefficient (±50ppm/°C). The CMF55165K00FHEB's extended range to 175°C provides additional thermal margin for high-temperature applications without altering resistance stability characteristics.

Q: Are both parts suitable for moisture-sensitive applications?

A: The CMF55165K00FHEB includes moisture-resistant coating, making it preferable for humid or corrosive environments. The RNF12FTC165K provides standard flame retardant protection suitable for general industrial use.

Q: What packaging formats are available for these parts?

A: The RNF12FTC165K is supplied in Tape & Reel (TR) format. The CMF55165K00FHEB is available in Cut Tape (CT) format, with TR packaging also available. Verify packaging requirements with your procurement specification.