RNF14FAD3R01 Equivalent & Substitute Parts

Part Overview

The RNF14FAD3R01 is a 3.01 Ohms ±1% 1/4W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values with reliable performance across industrial temperature ranges. The part is currently active in production with 1065 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to supply constraints, design optimization, or application-specific performance needs.

Substiute Parts

RNF14FAD3R01

Stackpole Electronics IncIn Stock: 1087RNF14FAD3R01 Datasheet

Current PartRFQ

CPF13R0100FKEE6

Vishay DaleIn Stock: 2961CPF13R0100FKEE6 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14FAD3R01 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Resistance value: 3.01 Ohms
• Tolerance: ±1%
• Composition: Metal Film
• Package: Axial through-hole configuration
• Temperature Coefficient: ±100ppm/°C
• RoHS Compliance: ROHS3 Compliant

Allowable Variation:

• Power rating may exceed the original specification (upgrade path)
• Operating temperature range may be extended (enhanced capability)
• Physical dimensions may vary within axial package constraints
• Packaging format may differ (Tape & Box vs. Cut Tape)

The CPF13R0100FKEE6 from Vishay Dale qualifies as a substitute because it maintains all mandatory electrical parameters while offering enhanced power rating (1W vs. 0.25W) and extended operating temperature range (-65°C ~ 230°C vs. -55°C ~ 155°C).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution Suitability:

The CPF13R0100FKEE6 is suitable for direct substitution in applications where the RNF14FAD3R01 is specified, provided the following conditions are met:

• Circuit design accommodates the higher power rating (1W vs. 0.25W). The substitute part dissipates more power without thermal stress, making it compatible with existing PCB layouts.
• Operating environment does not exceed the original temperature specification of -55°C ~ 155°C. The substitute's extended range (-65°C ~ 230°C) provides additional margin.
• Axial package footprint compatibility is confirmed. Dimensional differences (0.093" vs. 0.090" diameter; 0.250" vs. 0.240" length) are within typical through-hole component tolerances.
• Both parts maintain ROHS3 compliance and identical electrical characteristics (3.01 Ohms ±1%, ±100ppm/°C temperature coefficient).

Inventory and Availability:

The substitute part (CPF13R0100FKEE6) has higher stock availability (2890 units vs. 1065 units), supporting supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the CPF13R0100FKEE6 replace the RNF14FAD3R01 in my circuit?

A: Yes, provided the circuit design does not depend on the specific 0.25W power rating limitation. The substitute's 1W rating is a performance upgrade and will not cause functional issues in applications designed for the original part.

Q: What is the significance of the power rating difference (0.25W vs. 1W)?

A: Power rating indicates the maximum power dissipation the resistor can handle without exceeding temperature limits. The substitute can safely dissipate up to 1W, while the original is rated for 0.25W. In circuits where actual power dissipation is below 0.25W, both parts perform identically. Higher power ratings do not negatively affect circuit operation.

Q: Are the physical dimensions compatible with my PCB layout?

A: Both parts use axial through-hole packages with similar dimensions. The substitute (0.090" Dia x 0.240" L) is slightly smaller than the original (0.093" Dia x 0.250" L). Standard through-hole PCB designs accommodate this variation without modification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RNF14FAD3R01 and CPF13R0100FKEE6 are ROHS3 compliant and carry identical electrical specifications (3.01 Ohms ±1%, ±100ppm/°C temperature coefficient).

Q: What is the difference between Tape & Box and Cut Tape packaging?

A: Tape & Box (TB) provides resistors on tape with a protective box for storage. Cut Tape (CT) provides resistors on tape without the box. Both formats are suitable for automated assembly and manual placement. Selection depends on procurement and assembly process requirements.

Q: Can I use the substitute in high-temperature applications?

A: The substitute's operating range (-65°C ~ 230°C) exceeds the original specification (-55°C ~ 155°C). If your application operates within the original range, both parts are equivalent. If your application requires extended temperature performance, the substitute provides additional capability.