PRNF14FTD43K2 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD43K2 is a 43.2 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial configuration, manufactured by Stackpole Electronics Inc. The part is active and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and application-specific requirements such as tolerance upgrades or increased power ratings.

Key Parameters

Parameter	Value
Resistance	43.2 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Composition	Metal Film
Package Type	Axial
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Core Electrical Parameters (Must Match):

Resistance value: 43.2 kOhms
Tolerance: ±1% or tighter
Composition: Metal Film
Package configuration: Axial through-hole

Allowable Variations:

Power rating may be equal or higher (0.25W or greater)
Temperature coefficient may be equal or lower (±100ppm/°C or better)
Operating temperature range may be equal or extended
Packaging format (Tape & Reel or Cut Tape) does not affect electrical compatibility

Substitute Categories:

Direct Equivalent – Identical electrical and mechanical specifications with different packaging
Tolerance Upgrade – Tighter tolerance (±0.1%) with identical power rating
Power Upgrade – Higher power rating (0.5W) with identical tolerance
Cross-Manufacturer – Different manufacturer meeting all electrical and mechanical requirements

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Temp Coeff	Operating Temp	Packaging	Size (mm)
PRNF14FTD43K2	Stackpole Electronics Inc	43.2 kOhms	±1%	0.25W	±100ppm/°C	-55°C ~ 155°C	Tape & Reel	2.35 x 6.35
RNF14FTD43K2	Stackpole Electronics Inc	43.2 kOhms	±1%	0.25W	±100ppm/°C	-55°C ~ 155°C	Cut Tape	2.35 x 6.35
RNF14BTD43K2	Stackpole Electronics Inc	43.2 kOhms	±0.1%	0.25W	±100ppm/°C	-55°C ~ 155°C	Cut Tape	2.35 x 6.35
RNMF12FTD43K2	Stackpole Electronics Inc	43.2 kOhms	±1%	0.5W	±100ppm/°C	-55°C ~ 155°C	Tape & Reel	2.35 x 6.35
CMF5543K200FHEB	Vishay Dale	43.2 kOhms	±1%	0.5W	±50ppm/°C	-55°C ~ 175°C	Cut Tape	2.29 x 6.10

Engineering Selection Recommendations

RNF14FTD43K2 – Direct equivalent with identical electrical specifications. Differs only in packaging format (Cut Tape vs. Tape & Reel). Suitable for direct substitution in applications where packaging format is not a constraint.

RNF14BTD43K2 – Tolerance upgrade option. Provides ±0.1% tolerance versus ±1% of the main part, maintaining identical power rating and operating temperature. Select when circuit design requires tighter resistance tolerance.

RNMF12FTD43K2 – Power upgrade option. Rated at 0.5W versus 0.25W of the main part, with identical tolerance and temperature coefficient. Select for applications requiring higher power dissipation capability or thermal margin.

CMF5543K200FHEB – Cross-manufacturer substitute from Vishay Dale. Meets all core electrical requirements with enhanced specifications: ±50ppm/°C temperature coefficient (versus ±100ppm/°C), extended operating range to 175°C, and moisture-resistant coating. Dimensions vary slightly (2.29mm x 6.10mm). All parts maintain ROHS3 compliance and identical ECCN/HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD43K2 be used in place of PRNF14FTD43K2?

A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: RNF14FTD43K2 is supplied in Cut Tape while PRNF14FTD43K2 is supplied in Tape & Reel. Electrical performance is identical.

Q: What is the benefit of selecting RNF14BTD43K2?

A: RNF14BTD43K2 provides tighter tolerance at ±0.1% compared to ±1%. Select this part when circuit design requires higher resistance accuracy. Power rating and operating temperature remain unchanged.

Q: When should RNMF12FTD43K2 be selected?

A: Select RNMF12FTD43K2 when the application requires higher power dissipation. This part is rated at 0.5W versus 0.25W, providing greater thermal capability. Resistance value and tolerance remain identical.

Q: Is CMF5543K200FHEB compatible with the original part?

A: Yes. CMF5543K200FHEB meets all core electrical requirements: 43.2 kOhms ±1% metal film axial resistor. It offers enhanced specifications including lower temperature coefficient (±50ppm/°C), extended operating range to 175°C, and moisture-resistant coating. Physical dimensions are slightly smaller (2.29mm x 6.10mm versus 2.35mm x 6.35mm), which may affect board layout in space-constrained applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and are classified under identical ECCN (EAR99) and HTSUS (8533.21.0090) codes.

Q: What packaging formats are available?

A: PRNF14FTD43K2 and RNMF12FTD43K2 are supplied in Tape & Reel format. RNF14FTD43K2, RNF14BTD43K2, and CMF5543K200FHEB are supplied in Cut Tape format. Tape & Reel packaging is typically used for automated assembly, while Cut Tape is suitable for manual or mixed-volume applications.

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