PRNF14FTD1K00 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD1K00 is a 1 kOhms ±1% metal film axial resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component is part of the RNF series and is actively produced. The part features flame retardant coating and safety construction, with operating temperature range from -55°C to 155°C. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value and tolerance) and mechanical compatibility (axial package, through-hole configuration) while accounting for packaging format variations and performance upgrades available from alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	1 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Composition	Metal Film
Package Type	Axial
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Size/Dimension	0.093" Dia x 0.250" L (2.35mm x 6.35mm)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents (Same Electrical Specifications): Parts maintaining identical resistance (1 kOhms), tolerance (±1%), and power rating (0.25W/1/4W) with axial package configuration. These differ only in packaging format (Tape & Box, Cut Tape) and are interchangeable for circuit functionality.

Upgrade Alternatives (Enhanced Performance): Parts from Vishay Dale CMF series offering improved specifications while maintaining 1 kOhms resistance and axial package. These upgrades provide higher power ratings (0.5W/1/2W), tighter tolerances (±0.1% options), lower temperature coefficients (±25ppm/°C to ±50ppm/°C), and extended operating temperature range (-55°C to 175°C). Upgrade parts are electrically compatible but provide enhanced reliability margins.

Key Parameters Determining Substitution:

Resistance value: 1 kOhms (mandatory match)
Package type: Axial through-hole (mandatory match)
Tolerance: ±1% minimum (tighter tolerance acceptable)
Power rating: 0.25W minimum (higher rating acceptable)
Composition: Metal film (maintained across all alternatives)
Compliance: ROHS3 and REACH status (maintained across all alternatives)

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Temp Coeff	Operating Temp	Packaging	Inventory
PRNF14FTD1K00	Stackpole Electronics Inc	1 kOhms	±1%	0.25W	±100ppm/°C	-55°C to 155°C	Tape & Reel (TR)	994 Pcs
RNF14FAD1K00	Stackpole Electronics Inc	1 kOhms	±1%	0.25W	±100ppm/°C	-55°C to 155°C	Tape & Box (TB)	986 Pcs
RNF14FTD1K00	Stackpole Electronics Inc	1 kOhms	±1%	0.25W	±100ppm/°C	-55°C to 155°C	Cut Tape (CT)	170766 Pcs
CMF551K0000BEEB	Vishay Dale	1 kOhms	±0.1%	0.5W	±25ppm/°C	-55°C to 175°C	Cut Tape (CT)	9097 Pcs
CMF551K0000BEEK	Vishay Dale	1 kOhms	±0.1%	0.5W	±25ppm/°C	-55°C to 175°C	Bulk	1008 Pcs
CMF551K0000BHEB	Vishay Dale	1 kOhms	±0.1%	0.5W	±50ppm/°C	-55°C to 175°C	Cut Tape (CT)	3101 Pcs
CMF551K0000BHEB70	Vishay Dale	1 kOhms	±0.1%	0.5W	±50ppm/°C	-55°C to 175°C	Cut Tape (CT)	1901 Pcs
CMF551K0000FEEK	Vishay Dale	1 kOhms	±1%	0.5W	±25ppm/°C	-55°C to 175°C	Bulk	1207 Pcs
CMF551K0000FHEA	Vishay Dale	1 kOhms	±1%	0.5W	±50ppm/°C	-55°C to 175°C	Cut Tape (CT)	9367 Pcs
CMF551K0000FHEB	Vishay Dale	1 kOhms	±1%	0.5W	±50ppm/°C	-55°C to 175°C	Cut Tape (CT)	8020 Pcs
CMF551K0000FKEB	Vishay Dale	1 kOhms	±1%	0.5W	±100ppm/°C	-55°C to 175°C	Cut Tape (CT)	12513 Pcs

Engineering Selection Recommendations

Direct Equivalent Selection: RNF14FAD1K00 and RNF14FTD1K00 from Stackpole Electronics Inc provide identical electrical performance to PRNF14FTD1K00. Selection between these three Stackpole parts depends solely on packaging requirements: Tape & Reel (TR) for automated assembly, Tape & Box (TB) for mixed-volume applications, or Cut Tape (CT) for flexible quantity handling. All three maintain ROHS3 compliance and REACH unaffected status.

Upgrade Part Selection: Vishay Dale CMF series parts offer enhanced specifications suitable for applications requiring improved performance margins. CMF551K0000BEEB and CMF551K0000BEEK provide the tightest tolerance (±0.1%) with lowest temperature coefficient (±25ppm/°C), appropriate for precision measurement circuits. CMF551K0000BHEB, CMF551K0000BHEB70, CMF551K0000FHEA, and CMF551K0000FHEB offer ±0.1% or ±1% tolerance with ±50ppm/°C temperature coefficient and doubled power rating (0.5W), suitable for general-purpose applications requiring thermal margin. CMF551K0000FKEB maintains ±1% tolerance with ±100ppm/°C temperature coefficient matching the original specification while providing 0.5W power rating and extended temperature range to 175°C.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and axial through-hole package configuration. Physical dimensions of Vishay Dale parts (0.090" Dia x 0.240" L) are slightly smaller than Stackpole parts (0.093" Dia x 0.250" L), which does not affect circuit board layout compatibility for standard through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can CMF series parts directly replace PRNF14FTD1K00 in existing designs?

A: Yes. All CMF series parts maintain 1 kOhms resistance, axial through-hole package configuration, and metal film composition. The slightly smaller physical dimensions (0.090" Dia x 0.240" L versus 0.093" Dia x 0.250" L) do not affect standard PCB hole spacing or circuit functionality. Tighter tolerances and lower temperature coefficients in CMF parts provide improved performance without circuit modification.

Q: What is the difference between Stackpole RNF14FAD1K00 and RNF14FTD1K00?

A: Both parts are electrically identical with matching resistance, tolerance, power rating, and temperature specifications. The difference is packaging format: RNF14FAD1K00 uses Tape & Box (TB) packaging while RNF14FTD1K00 uses Cut Tape (CT) packaging. Selection depends on assembly process requirements and quantity handling preferences.

Q: Are Vishay Dale CMF parts suitable for high-temperature applications?

A: CMF series parts extend the operating temperature range to 175°C compared to 155°C for Stackpole RNF parts. This 20°C additional margin provides enhanced reliability in elevated-temperature environments. Temperature coefficient specifications (±25ppm/°C to ±100ppm/°C) remain stable across the extended range.

Q: Which substitute part offers the best tolerance specification?

A: CMF551K0000BEEB and CMF551K0000BEEK provide ±0.1% tolerance, which is ten times tighter than the original ±1% specification. These parts are appropriate for precision analog circuits, measurement instrumentation, and applications requiring tight resistance matching.

Q: Can I mix different substitute parts in the same circuit board assembly?

A: Yes. All substitute parts maintain identical resistance value (1 kOhms) and axial through-hole package configuration. Mixing parts with different tolerances or temperature coefficients is electrically valid; however, circuit performance uniformity may be affected if tolerance-sensitive applications require matched component sets.

Q: What packaging format should I select for high-volume production?

A: Tape & Reel (TR) packaging is standard for automated pick-and-place assembly. Cut Tape (CT) packaging provides flexibility for mixed-volume or manual assembly operations. Bulk packaging is suitable for hand-assembly or prototype applications where individual component handling is acceptable.

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