ERO-S2PHF2401 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF2401 is a 2.4 kOhms ±1% 0.25W through-hole resistor with axial metal film construction manufactured by Panasonic Electronic Components. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The part operates across a temperature range of -55°C to 150°C with a temperature coefficient of ±50ppm/°C, suitable for general-purpose analog and digital circuit applications requiring precision resistive elements.

Substiute Parts

ERO-S2PHF2401

Panasonic Electronic ComponentsIn Stock: 1252ERO-S2PHF2401 Datasheet

Current PartRFQ

RNMF14FTC2K40

Stackpole Electronics IncIn Stock: 19942RNMF14FTC2K40 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERO-S2PHF2401 is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance value: 2.4 kOhms (exact match required)
• Tolerance: ±1% (equivalent precision class)
• Power rating: 0.25W / 1/4W (identical dissipation capability)
• Composition: Metal film (same construction technology)
• Temperature coefficient: ±50ppm/°C (matching frequency stability)
• Operating temperature range: minimum -55°C to 150°C (equal or broader range)
• Package: Axial through-hole (identical form factor and pin configuration)

The RNMF14FTC2K40 from Stackpole Electronics Inc meets all substitution criteria, with an extended upper operating temperature limit of 155°C and additional flame retardant coating features.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC2K40 is the direct functional equivalent for the obsolete ERO-S2PHF2401. Selection of the Stackpole substitute is supported by:

• Identical electrical specifications across resistance, tolerance, power rating, and temperature coefficient
• Active product status ensuring continued availability and supply chain reliability
• ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement
• Extended upper operating temperature limit (155°C vs. 150°C), providing additional thermal margin in high-temperature applications
• Flame retardant coating and safety features providing enhanced reliability characteristics

Physical dimensions show minor variation (0.070" Dia x 0.130" L vs. 0.067" Dia x 0.126" L), remaining within standard axial resistor form factor tolerances and compatible with existing PCB layouts designed for 1/4W axial components.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC2K40 be used as a direct replacement for the ERO-S2PHF2401 in existing designs?

A: Yes. Both components share identical electrical specifications (2.4 kOhms, ±1%, 0.25W, metal film, ±50ppm/°C) and axial package configuration. The substitute meets or exceeds all functional requirements of the original part.

Q: What is the significance of the flame retardant coating on the RNMF14FTC2K40?

A: The flame retardant coating and safety features are additional characteristics of the Stackpole component. These do not affect electrical performance but provide enhanced reliability in applications subject to thermal stress or safety-critical requirements.

Q: Are there dimensional compatibility concerns between the two parts?

A: Physical dimensions differ slightly (0.070" Dia x 0.130" L for RNMF14FTC2K40 vs. 0.067" Dia x 0.126" L for ERO-S2PHF2401). Both remain within standard axial resistor form factor specifications and are compatible with PCB layouts designed for 1/4W axial through-hole components.

Q: Why is the ERO-S2PHF2401 classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Panasonic Electronic Components. The RNMF14FTC2K40 from Stackpole Electronics Inc provides equivalent functionality with active product status and current regulatory compliance.

Q: Does the extended operating temperature range of the RNMF14FTC2K40 affect circuit performance?

A: The extended upper temperature limit (155°C vs. 150°C) does not affect performance in applications operating within the original specification range (-55°C to 150°C). It provides additional thermal margin for designs operating near maximum temperature limits.