RNF14FAD287K Equivalent & Substitute Parts

Part Overview

The RNF14FAD287K is a 287 kOhms ±1% 0.25W (1/4W) through-hole resistor manufactured by Stackpole Electronics Inc. This axial metal film resistor features flame retardant coating and safety characteristics, designed for general-purpose applications requiring precision resistance values in compact form factors. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

RNF14FAD287K

Stackpole Electronics IncIn Stock: 1144RNF14FAD287K Datasheet

Current PartRFQ

RNF14FTD287K

Stackpole Electronics IncIn Stock: 979RNF14FTD287K Datasheet

DirectRFQ

CMF55287K00FHEB

Vishay DaleIn Stock: 3778CMF55287K00FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAD287K are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Resistance value: 287 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial (exact match required)
• Compliance: ROHS3 Compliant (exact match required)

Direct Substitutes (Same Electrical Specifications): The RNF14FTD287K from Stackpole Electronics Inc maintains identical electrical parameters to the main part. The only difference is packaging format: Tape & Reel (TR) versus Tape & Box (TB). Both parts are rated 0.25W with ±100ppm/°C temperature coefficient and -55°C ~ 155°C operating range.

Upgrade Substitute (Enhanced Specifications): The CMF55287K00FHEB from Vishay Dale provides the same 287 kOhms ±1% resistance and tolerance but with enhanced 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 qualifies as an upgrade option for applications requiring higher power dissipation or tighter temperature stability.

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD287K Selection: Choose this direct substitute when procurement requires Tape & Reel packaging format for automated assembly processes. Electrical performance is identical to RNF14FAD287K. Both parts maintain active product status and full compliance certifications.

CMF55287K00FHEB Selection: Select this upgrade substitute for applications where power dissipation exceeds 0.25W or where improved temperature stability is required. The doubled power rating (0.5W) and superior temperature coefficient (±50ppm/°C) provide design margin for demanding environments. Extended operating temperature to 175°C supports high-temperature applications. All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD287K directly replace RNF14FAD287K in existing designs? A: Yes. Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications: 287 kOhms ±1%, 0.25W power rating, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. The only difference is packaging format (Tape & Reel versus Tape & Box), which does not affect circuit performance.

Q: What are the advantages of using CMF55287K00FHEB over the Stackpole parts? A: CMF55287K00FHEB offers three 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 upgrades benefit applications with higher power dissipation requirements or stricter temperature stability specifications.

Q: Are all three parts suitable for high-reliability applications? A: All three parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial and commercial applications. Selection depends on specific power and temperature requirements of the circuit design.

Q: Does packaging format affect electrical performance? A: No. Packaging format (Tape & Box, Tape & Reel, or Cut Tape) affects only procurement and assembly logistics, not electrical characteristics or circuit performance.

Q: Can CMF55287K00FHEB be used in applications originally designed for 0.25W resistors? A: Yes. The higher power rating of CMF55287K00FHEB (0.5W) is backward compatible with 0.25W designs. The part will operate safely at lower power levels while providing additional thermal margin.