PRNF14FTD39K2 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD39K2 is a 39.2 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial configuration, manufactured by Stackpole Electronics Inc. This component is part of the RNF series and maintains Active product status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and application-specific requirements where packaging or performance specifications differ from the primary part number.

Substiute Parts

PRNF14FTD39K2

Stackpole Electronics IncIn Stock: 942PRNF14FTD39K2 Datasheet

Current PartRFQ

RNF14FAD39K2

Stackpole Electronics IncIn Stock: 1143RNF14FAD39K2 Datasheet

DirectRFQ

RNF14FTD39K2

Stackpole Electronics IncIn Stock: 21410RNF14FTD39K2 Datasheet

DirectRFQ

CMF5539K200FHEB

Vishay DaleIn Stock: 6970CMF5539K200FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following critical parameters: resistance value (39.2 kOhms), tolerance (±1%), composition (metal film), package configuration (axial), and compliance certifications (ROHS3, REACH Unaffected). Parts are grouped into two categories:

Direct Equivalents: Parts maintaining identical electrical specifications and operating temperature range (-55°C to 155°C), differing only in packaging format (Tape & Reel, Tape & Box, or Cut Tape).

Upgrade Substitute: Parts with enhanced power rating (0.5W vs. 0.25W), improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), and extended operating temperature range (-55°C to 175°C), suitable for applications requiring higher thermal performance or power dissipation margin.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: RNF14FAD39K2 and RNF14FTD39K2 are functionally equivalent to PRNF14FTD39K2 with identical electrical performance. Selection between these three parts is determined by packaging requirements: Tape & Reel for automated assembly processes, Tape & Box for manual or mixed assembly, and Cut Tape for flexible quantity requirements. All three maintain Active product status and ROHS3 compliance.

Upgrade Substitute Selection: CMF5539K200FHEB (Vishay Dale) provides enhanced specifications with doubled power rating (0.5W vs. 0.25W), superior temperature coefficient (±50ppm/°C vs. ±100ppm/°C), and extended operating temperature range (-55°C to 175°C vs. -55°C to 155°C). This part is suitable for applications requiring higher thermal stability or operating in elevated temperature environments. CMF5539K200FHEB maintains ROHS3 compliance and Active product status.

Frequently Asked Questions (FAQ)

Q: Can RNF14FAD39K2 be used as a direct replacement for PRNF14FTD39K2?

A: Yes. Both parts share identical electrical specifications (39.2 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C operating range). The difference is packaging format: RNF14FAD39K2 is supplied in Tape & Box while PRNF14FTD39K2 is supplied in Tape & Reel. Selection depends on assembly process requirements.

Q: What is the difference between the Stackpole RNF series parts and the Vishay Dale CMF5539K200FHEB?

A: The CMF5539K200FHEB offers higher power dissipation capability (0.5W vs. 0.25W), better temperature stability (±50ppm/°C vs. ±100ppm/°C), and extended operating temperature range (up to 175°C vs. 155°C). Use CMF5539K200FHEB when applications require thermal margin or operate at elevated temperatures.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. PRNF14FTD39K2, RNF14FAD39K2, RNF14FTD39K2, and CMF5539K200FHEB are all ROHS3 compliant and REACH unaffected.

Q: What packaging formats are available for the 39.2 kOhms ±1% 0.25W resistor?

A: Stackpole Electronics Inc offers this value in three packaging formats: Tape & Reel (PRNF14FTD39K2), Tape & Box (RNF14FAD39K2), and Cut Tape (RNF14FTD39K2). All three are electrically identical.

Q: Can CMF5539K200FHEB be used in place of PRNF14FTD39K2 in all applications?

A: CMF5539K200FHEB is a suitable substitute with enhanced specifications. The higher power rating and improved temperature coefficient make it compatible with PRNF14FTD39K2 applications. Physical dimensions are similar (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L), maintaining axial package compatibility.