RNF14FAD4K53 Equivalent & Substitute Parts

Part Overview

The RNF14FAD4K53 is a 4.53 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration. Manufactured by Stackpole Electronics Inc, this component features flame retardant coating and safety-rated construction suitable for industrial and consumer electronics applications. The part maintains Active product status with full RoHS3 compliance and REACH unaffected certification. Substitute parts are identified to address packaging format availability, inventory requirements, or enhanced performance specifications while maintaining core electrical compatibility.

Substiute Parts

RNF14FAD4K53

Stackpole Electronics IncIn Stock: 1084RNF14FAD4K53 Datasheet

Current PartRFQ

RNF14FTD4K53

Stackpole Electronics IncIn Stock: 18058RNF14FTD4K53 Datasheet

DirectRFQ

CMF554K5300FHEB

Vishay DaleIn Stock: 1490CMF554K5300FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAD4K53 are classified based on the following substitution criteria:

Direct Equivalent (Same Packaging Format): RNF14FTD4K53 maintains identical electrical specifications (4.53 kOhms ±1%, 0.25W, metal film composition, ±100ppm/°C temperature coefficient, -55°C ~ 155°C operating range) with variation only in packaging format (Cut Tape versus Tape & Box). This substitution is valid for applications where packaging format does not impose design constraints.

Upgrade Substitute (Enhanced Performance): CMF554K5300FHEB provides the same resistance value and tolerance (4.53 kOhms ±1%) with increased power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended upper operating temperature (175°C versus 155°C). This part is suitable for applications requiring higher thermal stability or power dissipation margin. Physical dimensions differ slightly (0.090" Dia x 0.240" L versus 0.093" Dia x 0.250" L), requiring verification of board layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD4K53 Selection: Choose this direct equivalent when packaging format flexibility is acceptable and inventory availability of the Tape & Box format is constrained. Both parts carry identical electrical performance and compliance certifications. This substitution introduces no technical risk to circuit performance.

CMF554K5300FHEB Selection: Select this upgrade substitute when circuit design permits higher power dissipation capability or when improved temperature stability (±50ppm/°C) is beneficial. The extended operating temperature range to 175°C provides additional thermal margin. Verify physical dimensions (0.090" Dia x 0.240" L) against PCB layout constraints before implementation. All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and consumer applications.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD4K53 be used as a direct replacement for RNF14FAD4K53?

A: Yes. Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications (4.53 kOhms ±1%, 0.25W, metal film, ±100ppm/°C, -55°C ~ 155°C). The only difference is packaging format (Cut Tape versus Tape & Box). Electrical performance and circuit behavior are equivalent.

Q: What are the advantages of using CMF554K5300FHEB over the original part?

A: CMF554K5300FHEB offers three performance enhancements: doubled power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), and extended upper operating temperature (175°C versus 155°C). These characteristics provide greater thermal stability and power dissipation margin in demanding applications.

Q: Are there physical dimension differences that affect PCB layout?

A: Yes. CMF554K5300FHEB dimensions are 0.090" Dia x 0.240" L compared to 0.093" Dia x 0.250" L for RNF14FAD4K53 and RNF14FTD4K53. The differences are minor but must be verified against PCB hole spacing and component clearance requirements before design implementation.

Q: Do all substitute parts maintain the same compliance certifications?

A: Yes. All three parts (RNF14FAD4K53, RNF14FTD4K53, and CMF554K5300FHEB) are ROHS3 compliant and REACH unaffected, ensuring regulatory compatibility for industrial and consumer electronics applications.

Q: Which substitute should be selected for high-temperature applications?

A: CMF554K5300FHEB is the appropriate choice for high-temperature environments, with operating range extending to 175°C compared to 155°C for the original part. This provides 20°C additional thermal margin and improved temperature coefficient stability.