ERO-S2PHF3003 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF3003 is a 300 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 essential for ongoing system support and component procurement.

Substitute parts must maintain identical electrical specifications (resistance value, tolerance, power rating) and compatible physical form factors to ensure direct replacement capability in existing circuit designs.

Substiute Parts

ERO-S2PHF3003

Panasonic Electronic ComponentsIn Stock: 1047ERO-S2PHF3003 Datasheet

Current PartRFQ

RNMF14FTC300K

Stackpole Electronics IncIn Stock: 7367RNMF14FTC300K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERO-S2PHF3003 is determined by strict equivalence across the following critical parameters:

• Resistance value: 300 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)

The RNMF14FTC300K from Stackpole Electronics Inc meets all substitution criteria. Physical dimensions show minor variation within acceptable manufacturing tolerances for axial resistor form factors.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC300K is the qualified substitute for the obsolete ERO-S2PHF3003 based on the following factors:

• Electrical equivalence: All critical parameters (resistance, tolerance, power rating, temperature coefficient) are identical
• Physical compatibility: Axial form factor with minor dimensional variation (0.003" diameter and 0.004" length increase) remains compatible with standard through-hole PCB layouts
• Product status: Active manufacturing status ensures ongoing availability, addressing the obsolescence of the original part
• Regulatory compliance: ROHS3 compliance and REACH unaffected status meet current environmental and regulatory requirements
• Operating temperature: Extended upper limit (155°C vs 150°C) provides additional thermal margin

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC300K be used as a direct replacement for ERO-S2PHF3003?

A: Yes. Both components share identical electrical specifications (300 kOhms, ±1%, 0.25W, metal film, ±50ppm/°C). Physical dimensions are within acceptable tolerances for axial resistor form factors in standard through-hole applications.

Q: What is the significance of the flame retardant coating on the RNMF14FTC300K?

A: The flame retardant coating is an additional feature of the Stackpole component. It does not affect electrical performance or substitution eligibility. This feature may provide enhanced safety characteristics in specific application environments.

Q: Are there any packaging differences between these parts?

A: The main part (ERO-S2PHF3003) packaging information is not specified in available data. The substitute (RNMF14FTC300K) is supplied in Cut Tape (CT) packaging. Both components are axial through-hole resistors suitable for standard PCB assembly processes.

Q: Why is the ERO-S2PHF3003 listed as obsolete?

A: Panasonic has discontinued this product line. The RNMF14FTC300K from Stackpole Electronics Inc is an active product with equivalent electrical and mechanical specifications, making it suitable for new procurement and system support.

Q: What is the difference in operating temperature range?

A: The ERO-S2PHF3003 operates from -55°C to 150°C, while the RNMF14FTC300K operates from -55°C to 155°C. The substitute provides a 5°C higher upper temperature limit, which is beneficial for applications requiring extended thermal performance.