ERO-S2PHF3012 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF3012 is a 30.1 kOhms ±1% 0.25W through-hole resistor with axial metal film construction manufactured by Panasonic Electronic Components. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across a temperature range of -55°C to 150°C and features a temperature coefficient of ±50ppm/°C, suitable for precision analog circuits requiring stable resistance values.

Substiute Parts

ERO-S2PHF3012

Panasonic Electronic ComponentsIn Stock: 829ERO-S2PHF3012 Datasheet

Current PartRFQ

CMF5030K100FHEB

Vishay DaleIn Stock: 3690CMF5030K100FHEB Datasheet

SimilarRFQ

MFR-25FRF52-30K1

YAGEOIn Stock: 14471MFR-25FRF52-30K1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERO-S2PHF3012 is determined by strict equivalence across the following parameters:

• Resistance value: 30.1 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)
• Number of terminations: 2 (exact match required)

The substitute parts CMF5030K100FHEB and MFR-25FRF52-30K1 meet all mandatory electrical and mechanical parameters. Variations in temperature coefficient, operating temperature range, physical dimensions, and product status are secondary considerations that do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both CMF5030K100FHEB and MFR-25FRF52-30K1 are functionally equivalent substitutes for the obsolete ERO-S2PHF3012 based on core electrical specifications.

CMF5030K100FHEB offers the closest thermal performance match with an identical ±50ppm/°C temperature coefficient and extended operating range to 175°C. This part carries ROHS3 compliance and REACH unaffected status, with flame retardant coating and moisture-resistant features. Physical dimensions are comparable to the original part.

MFR-25FRF52-30K1 provides an active, readily available alternative with ROHS3 compliance and REACH unaffected status. The temperature coefficient is ±100ppm/°C, which represents a 2x increase in temperature sensitivity. Physical dimensions are larger than both the original and CMF5030K100FHEB variant.

Selection between these substitutes depends on application thermal stability requirements and available board space. Both parts are actively manufactured and stocked, ensuring long-term procurement availability.

Frequently Asked Questions (FAQ)

Q: Can CMF5030K100FHEB and MFR-25FRF52-30K1 be used interchangeably with ERO-S2PHF3012?

A: Both parts meet the core electrical requirements: 30.1 kOhms ±1% at 0.25W with metal film axial construction. Interchangeability is determined by application-specific thermal and spatial constraints. The CMF5030K100FHEB maintains the original temperature coefficient specification, while MFR-25FRF52-30K1 has a higher temperature coefficient that may affect precision circuits.

Q: What are the physical dimension differences, and do they matter?

A: ERO-S2PHF3012 measures 0.067" Dia x 0.126" L. CMF5030K100FHEB is 0.065" Dia x 0.150" L, and MFR-25FRF52-30K1 is 0.094" Dia x 0.248" L. Dimension differences affect PCB layout and component density. Verify available board space before selection, particularly for the larger MFR variant.

Q: Are there compliance or regulatory differences between the substitutes?

A: CMF5030K100FHEB and MFR-25FRF52-30K1 are both ROHS3 compliant and REACH unaffected. The original ERO-S2PHF3012 compliance status is not specified. All three parts carry EAR99 export classification.

Q: Which substitute should be selected for temperature-sensitive applications?

A: CMF5030K100FHEB maintains the ±50ppm/°C temperature coefficient of the original part and extends the operating range to 175°C. For applications requiring the original thermal stability specification, CMF5030K100FHEB is the preferred selection.

Q: What is the availability status of these substitutes?

A: CMF5030K100FHEB and MFR-25FRF52-30K1 are both active products with current manufacturing and distribution. The original ERO-S2PHF3012 is obsolete and no longer manufactured.