PRNF14FTD19K1 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD19K1 is a 19.1 kOhms ±1% 0.25W metal film through-hole resistor manufactured by Stackpole Electronics Inc in the RNF series. This axial-lead component features flame retardant coating and safety construction, designed for applications requiring precision resistance values with tight tolerance specifications. The part is active in production with ROHS3 compliance and is suitable for general-purpose electronic circuit applications where 1/4W power dissipation meets design requirements.

Equivalent and substitute parts are identified when they maintain the same resistance value, tolerance, and composition while accommodating variations in power rating, temperature coefficient, and operating temperature range within acceptable engineering parameters.

Substiute Parts

PRNF14FTD19K1

Stackpole Electronics IncIn Stock: 780PRNF14FTD19K1 Datasheet

Current PartRFQ

RNF14FTD19K1

Stackpole Electronics IncIn Stock: 982RNF14FTD19K1 Datasheet

DirectRFQ

CMF5519K100FHEB

Vishay DaleIn Stock: 4442CMF5519K100FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PRNF14FTD19K1 is determined by the following critical parameters:

Primary Matching Criteria (Non-Negotiable):

• Resistance value: 19.1 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package: Axial through-hole configuration

Secondary Compatibility Parameters (Allowable Variation):

• Power rating: Equal or greater than 0.25W
• Temperature coefficient: Equal or lower absolute value (tighter specification acceptable)
• Operating temperature range: Must encompass or exceed -55°C ~ 155°C
• Physical dimensions: Minor variations acceptable if board layout permits

The PRNF14FTD19K1 has one identified substitute: the CMF5519K100FHEB from Vishay Dale. This substitute maintains identical resistance, tolerance, and composition specifications while offering enhanced performance characteristics including higher power rating (0.5W vs 0.25W), improved temperature coefficient (±50ppm/°C vs ±100ppm/°C), and extended upper operating temperature (175°C vs 155°C).

Parameter Comparison

Engineering Selection Recommendations

PRNF14FTD19K1 (Primary Selection): Select this part when the application requires a 1/4W power dissipation specification and the circuit design has been validated for this exact power rating. This part maintains active production status with established supply availability and meets all ROHS3 compliance requirements.

CMF5519K100FHEB (Substitute Selection): The CMF5519K100FHEB from Vishay Dale serves as a direct functional substitute with performance enhancements. This part is suitable when:

• The circuit design permits a higher power rating (0.5W vs 0.25W)
• Improved temperature stability is beneficial (±50ppm/°C vs ±100ppm/°C)
• Extended operating temperature range to 175°C is required
• Moisture resistance is a design consideration

Both parts maintain ROHS3 compliance and are suitable for equivalent circuit applications. The CMF5519K100FHEB offers superior performance margins and is available in higher inventory quantities.

Frequently Asked Questions (FAQ)

Q: Can the CMF5519K100FHEB replace the PRNF14FTD19K1 in my circuit?

A: Yes. Both parts share identical resistance (19.1 kOhms) and tolerance (±1%) specifications. The CMF5519K100FHEB has a higher power rating (0.5W vs 0.25W), which is compatible with circuits designed for the lower 0.25W rating. The slightly smaller physical dimensions (0.090" Dia x 0.240" L vs 0.093" Dia x 0.250" L) are within acceptable tolerances for standard through-hole board layouts.

Q: What is the difference in temperature coefficient between these parts?

A: The PRNF14FTD19K1 has a temperature coefficient of ±100ppm/°C, while the CMF5519K100FHEB has ±50ppm/°C. A lower temperature coefficient indicates better resistance stability across temperature variations. The CMF5519K100FHEB provides tighter tolerance performance in this parameter.

Q: Are there packaging differences I should consider?

A: The PRNF14FTD19K1 is supplied in Tape & Reel (TR) format, while the CMF5519K100FHEB is supplied in Cut Tape (CT) format. Both are standard through-hole axial packages suitable for manual or automated assembly. Packaging format selection depends on your procurement and assembly process requirements.

Q: Do both parts meet compliance requirements?

A: Yes. Both the PRNF14FTD19K1 and CMF5519K100FHEB are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both meet the same regulatory and environmental standards.

Q: What is the operating temperature range difference?

A: The PRNF14FTD19K1 operates from -55°C to 155°C, while the CMF5519K100FHEB extends to 175°C. If your application requires operation above 155°C, the CMF5519K100FHEB is the appropriate selection.