ERO-S2PHF2403 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF2403 is a 240 kOhms ±1% 0.25W through-hole resistor with axial metal film construction manufactured by Panasonic Electronic Components. This component is classified as obsolete, making substitute parts necessary for ongoing production and maintenance applications. The metal film composition provides stable performance across the operating temperature range of -55°C to 150°C with a temperature coefficient of ±50ppm/°C.

Substiute Parts

ERO-S2PHF2403

Panasonic Electronic ComponentsIn Stock: 762ERO-S2PHF2403 Datasheet

Current PartRFQ

RNMF14FTC240K

Stackpole Electronics IncIn Stock: 21679RNMF14FTC240K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERO-S2PHF2403 is determined by strict equivalence across the following critical parameters:

• Resistance value: 240 kOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Composition: Metal Film
• Package: Axial through-hole
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: minimum -55°C to 150°C

The RNMF14FTC240K from Stackpole Electronics Inc meets all these requirements and qualifies as a direct substitute. Both components share identical electrical specifications and package configuration, with compatible physical dimensions within acceptable assembly tolerances.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC240K is the qualified substitute for the obsolete ERO-S2PHF2403. Selection is based on the following factors:

• Electrical equivalence: Both components provide identical resistance, tolerance, power rating, and temperature coefficient specifications.
• Product availability: The RNMF14FTC240K is in active production with substantial inventory (21,667 pcs), whereas the ERO-S2PHF2403 is obsolete.
• Compliance status: The RNMF14FTC240K carries ROHS3 compliance and REACH unaffected certification, supporting modern regulatory requirements.
• Physical compatibility: Dimensional differences (0.070" vs 0.067" diameter; 0.130" vs 0.126" length) are within standard PCB assembly tolerances for axial through-hole components.
• Enhanced operating range: The RNMF14FTC240K supports -55°C to 155°C, providing 5°C additional upper temperature margin.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC240K be used as a direct replacement for the ERO-S2PHF2403 in existing designs?

A: Yes. Both components meet identical electrical specifications (240 kOhms ±1%, 0.25W, ±50ppm/°C). Physical dimensions are compatible with standard PCB assembly processes for axial through-hole resistors.

Q: What is the significance of the flame retardant coating on the RNMF14FTC240K?

A: The flame retardant coating and safety designation on the RNMF14FTC240K are additional features not present on the original ERO-S2PHF2403. These features do not affect electrical performance and provide enhanced safety characteristics in applications requiring flame retardancy.

Q: Are there any packaging differences between these components?

A: The ERO-S2PHF2403 is supplied in standard packaging, while the RNMF14FTC240K is available in Cut Tape (CT) packaging. Both are axial through-hole components suitable for automated and manual assembly processes.

Q: Does the extended operating temperature range of the RNMF14FTC240K affect compatibility?

A: No. The RNMF14FTC240K's extended upper temperature limit (155°C vs 150°C) provides additional margin without affecting performance in applications designed for the original component's temperature range.

Q: What compliance certifications should be considered for new designs?

A: The RNMF14FTC240K's ROHS3 compliance and REACH unaffected status align with current regulatory requirements for electronic components in most markets.