ERO-S2PHF4303 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF4303 is a 430 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 design support and production continuity. Substitute parts must maintain identical electrical specifications and compatible physical dimensions to ensure direct replacement capability in existing circuit designs.

Substiute Parts

ERO-S2PHF4303

Panasonic Electronic ComponentsIn Stock: 734ERO-S2PHF4303 Datasheet

Current PartRFQ

RNMF14FTC430K

Stackpole Electronics IncIn Stock: 16262RNMF14FTC430K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERO-S2PHF4303 is determined by strict equivalence across the following critical parameters:

• Resistance Value: 430 kOhms (exact match required)
• Tolerance: ±1% (precision specification)
• Power Rating: 0.25W / 1/4W (thermal dissipation capacity)
• Composition: Metal Film (electrical performance characteristics)
• Temperature Coefficient: ±50ppm/°C (frequency and temperature stability)
• Operating Temperature Range: Minimum -55°C ~ 150°C (environmental compatibility)
• Package Type: Axial (mechanical fit and PCB compatibility)
• Physical Dimensions: Compatible axial form factor (board layout constraints)

The RNMF14FTC430K from Stackpole Electronics Inc meets all substitution criteria and is classified as an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC430K is the qualified substitute for the ERO-S2PHF4303 based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters—resistance value, tolerance, power rating, temperature coefficient, and operating temperature range—are met or exceeded by the Stackpole component.

Product Status: The RNMF14FTC430K is an active product with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete ERO-S2PHF4303.

Compliance & Certifications: The RNMF14FTC430K carries RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. Both components share identical ECCN (EAR99) and HTSUS (8533.21.0090) classifications.

Physical Compatibility: Dimensional variance between the two components (0.070" vs 0.067" diameter; 0.130" vs 0.126" length) falls within standard axial resistor tolerance and does not preclude direct PCB substitution.

Enhanced Features: The Stackpole component includes flame retardant coating and safety-rated construction, providing additional protection without compromising electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC430K be used as a direct replacement for the ERO-S2PHF4303?

A: Yes. The RNMF14FTC430K meets all electrical and mechanical substitution criteria. The minor dimensional differences (0.003" diameter and 0.004" length variance) are within standard axial resistor tolerances and do not affect PCB fit or circuit performance.

Q: What is the primary reason for substitution?

A: The ERO-S2PHF4303 is classified as obsolete. The RNMF14FTC430K is an active product with current manufacturing support, ensuring reliable sourcing for new production and field replacements.

Q: Are the temperature operating ranges compatible?

A: Yes. The ERO-S2PHF4303 operates from -55°C to 150°C, while the RNMF14FTC430K extends to 155°C. The Stackpole component maintains full compatibility across the original operating range and provides additional margin at elevated temperatures.

Q: Does the flame retardant coating on the RNMF14FTC430K affect electrical performance?

A: No. The flame retardant coating is a safety enhancement that does not alter the electrical characteristics, temperature coefficient, or tolerance specifications of the resistor.

Q: Are there any compliance differences between the two parts?

A: The RNMF14FTC430K carries RoHS3 and REACH compliance certifications. Both components share identical ECCN and HTSUS classifications, ensuring equivalent regulatory treatment in export and procurement contexts.

Q: What packaging options are available for the RNMF14FTC430K?

A: The RNMF14FTC430K is supplied in Cut Tape (CT) packaging. Verify packaging requirements for your procurement process, as the original ERO-S2PHF4303 packaging specification was not provided.