RNF14FTD34R8 Equivalent & Substitute Parts

Part Overview

The RNF14FTD34R8 is a 34.8 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-grade construction, designed for applications requiring precision resistance in compact form factors. The part maintains Active product status with 736 units in current inventory. Substitute parts are identified to address availability, performance upgrades, or specific application requirements while maintaining electrical and mechanical compatibility within defined parameters.

Substiute Parts

RNF14FTD34R8

Stackpole Electronics IncIn Stock: 836RNF14FTD34R8 Datasheet

Current PartRFQ

CMF5534R800FHEB

Vishay DaleIn Stock: 1984CMF5534R800FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FTD34R8 is determined by the following critical parameters:

Resistance value must remain 34.8 Ohms with tolerance maintained at ±1%. The axial package type is mandatory for mechanical compatibility in through-hole PCB applications. Metal film composition ensures stability and precision characteristics required for the application class.

The substitute part CMF5534R800FHEB meets these core electrical requirements. This part shares identical resistance, tolerance, composition, and package configuration. The substitute provides an upgraded power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C). Both parts maintain ROHS3 compliance and flame retardant safety features.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF14FTD34R8 and CMF5534R800FHEB maintain Active product status and full ROHS3 compliance. Selection between these parts depends on application thermal and power dissipation requirements.

The RNF14FTD34R8 is appropriate for applications operating within the -55°C ~ 155°C range with power dissipation not exceeding 0.25W. This part is suitable for standard precision resistor applications in consumer and industrial electronics.

The CMF5534R800FHEB substitute is applicable when higher power dissipation capacity (0.5W) is required, when operating temperatures extend to 175°C, or when improved temperature stability (±50ppm/°C) is necessary. The addition of moisture resistance features provides enhanced reliability in humid environments. Both parts are mechanically compatible in axial through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Can CMF5534R800FHEB replace RNF14FTD34R8 in existing designs?

Yes, provided the application does not require the specific packaging format (Tape & Reel versus Cut Tape) or depend on Stackpole-specific sourcing. The electrical parameters and axial package configuration ensure functional compatibility.

What is the primary difference between these parts?

The substitute part provides doubled power rating (0.5W versus 0.25W), improved temperature coefficient stability, and extended maximum operating temperature. Physical dimensions are similar but not identical.

Are both parts suitable for high-temperature applications?

The RNF14FTD34R8 operates to 155°C maximum. The CMF5534R800FHEB extends to 175°C, making it suitable for higher-temperature environments. Selection depends on specific application thermal requirements.

Do packaging differences affect PCB assembly?

Both parts use axial through-hole configuration and are mechanically compatible in standard PCB layouts. Tape & Reel (TR) and Cut Tape (CT) formats differ in supply presentation but not in component form factor or mounting requirements.

Are moisture resistance features necessary for my application?

Moisture resistance is beneficial in humid, corrosive, or outdoor environments. Standard applications in controlled environments do not require this feature. Evaluate based on specific deployment conditions.