RNF14FTC34K0 Equivalent & Substitute Parts

Part Overview

The RNF14FTC34K0 is a 34 kOhms ±1% 0.25W (1/4W) through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal film resistor features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values with tight tolerance specifications. The part is currently in active production status with 769 units in stock. Substitute parts may be required due to inventory availability, lead time constraints, or application-specific performance requirements such as higher power ratings or enhanced operating temperature ranges.

Substiute Parts

RNF14FTC34K0

Stackpole Electronics IncIn Stock: 800RNF14FTC34K0 Datasheet

Current PartRFQ

CMF5534K000FHEB

Vishay DaleIn Stock: 7019CMF5534K000FHEB Datasheet

UpgradeRFQ

CMF5034K000FHEB

Vishay DaleIn Stock: 2136CMF5034K000FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTC34K0 is determined by the following critical parameters:

• Resistance Value: Must be 34 kOhms
• Tolerance: Must be ±1% or tighter
• Composition: Must be metal film
• Package Type: Must be axial through-hole
• Temperature Coefficient: Must be ±50ppm/°C or better
• Compliance: Must maintain ROHS3 compliance

The substitute parts listed below meet these core electrical and mechanical requirements. Variations in power rating and maximum operating temperature are permissible when the application circuit design accommodates these differences.

Parameter Comparison

Engineering Selection Recommendations

CMF5034K000FHEB (MFR Recommended Substitute)

This part is the direct equivalent to the RNF14FTC34K0. It maintains identical electrical specifications including 34 kOhms resistance, ±1% tolerance, 0.25W power rating, and ±50ppm/°C temperature coefficient. The CMF5034K000FHEB offers an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C) and includes moisture-resistant features. Both parts are ROHS3 compliant and suitable for direct substitution in applications where the original part is specified. Inventory availability is higher at 2075 units.

CMF5534K000FHEB (Upgrade Substitute)

This part provides a higher power rating of 0.5W (1/2W) compared to the 0.25W rating of the main part. All other electrical parameters remain identical: 34 kOhms resistance, ±1% tolerance, ±50ppm/°C temperature coefficient, and -55°C ~ 175°C operating range. The CMF5534K000FHEB is suitable for applications where increased power dissipation capability is beneficial or required. This part maintains ROHS3 compliance and offers the highest inventory availability at 7009 units. Physical dimensions are slightly larger due to the increased power rating.

Frequently Asked Questions (FAQ)

Q: Can CMF5034K000FHEB be used as a direct replacement for RNF14FTC34K0?

A: Yes. The CMF5034K000FHEB is electrically and mechanically equivalent. Both parts share identical resistance (34 kOhms), tolerance (±1%), power rating (0.25W), temperature coefficient (±50ppm/°C), and axial package configuration. The CMF5034K000FHEB provides an extended operating temperature range and moisture-resistant features at no electrical performance cost.

Q: When should CMF5534K000FHEB be selected over CMF5034K000FHEB?

A: The CMF5534K000FHEB should be selected when the application circuit requires higher power dissipation capability. The 0.5W rating provides additional thermal margin compared to the 0.25W rating. All other electrical parameters remain identical, making this an upgrade option for designs where power handling is a consideration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. Both CMF5034K000FHEB and CMF5534K000FHEB are ROHS3 compliant, matching the compliance status of the RNF14FTC34K0.

Q: What is the difference in physical size between these parts?

A: The RNF14FTC34K0 measures 0.093" Dia x 0.250" L (2.35mm x 6.35mm). The CMF5034K000FHEB measures 0.065" Dia x 0.150" L (1.65mm x 3.81mm), making it physically smaller. The CMF5534K000FHEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm), which is comparable in size to the main part.

Q: Do the substitute parts maintain the same temperature coefficient?

A: Yes. All three parts maintain a temperature coefficient of ±50ppm/°C, ensuring consistent performance across the operating temperature range.

Q: What is the maximum operating temperature for each part?

A: The RNF14FTC34K0 operates from -55°C to 155°C. Both CMF5034K000FHEB and CMF5534K000FHEB extend this range to -55°C to 175°C, providing additional thermal headroom for high-temperature applications.