ERO-S2PHF3000 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF3000 is a 300 Ohm ±1% 0.25W through-hole axial metal film resistor manufactured by Panasonic Electronic Components. This part is classified as obsolete, making equivalent substitute components necessary for ongoing production, maintenance, and repair applications. The ERO series represents a legacy product line, and active alternatives with identical electrical specifications are available from current manufacturers.

Substiute Parts

ERO-S2PHF3000

Panasonic Electronic ComponentsIn Stock: 938ERO-S2PHF3000 Datasheet

Current PartRFQ

RNMF14FTC300R

Stackpole Electronics IncIn Stock: 13880RNMF14FTC300R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERO-S2PHF3000 is determined by strict equivalence across the following parameters:

• Resistance value: 300 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Composition: Metal Film (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Package type: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)

The RNMF14FTC300R from Stackpole Electronics Inc meets all substitution criteria. Physical dimensions show minor variations within acceptable tolerances for axial resistor form factors. The substitute part maintains electrical equivalence while offering active product status and enhanced features including flame retardant coating.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC300R is the direct equivalent substitute for the ERO-S2PHF3000. Selection is based on the following engineering criteria:

• Electrical equivalence: All core parameters (resistance, tolerance, power rating, temperature coefficient) are identical
• Product status: The substitute is an active product with current manufacturing support, addressing the obsolescence of the original part
• Regulatory compliance: ROHS3 compliance and REACH unaffected status provide regulatory alignment for modern applications
• Enhanced features: Flame retardant coating and safety designation provide additional material properties beyond the original specification
• Operating temperature: The substitute supports an extended upper temperature limit (155°C vs. 150°C), providing additional thermal margin
• Physical compatibility: Axial package form factor and termination count ensure mechanical and electrical compatibility in existing circuit designs

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC300R be used as a direct replacement for the ERO-S2PHF3000 in existing designs?

A: Yes. Both parts are 300 Ohm ±1% metal film axial resistors with 0.25W power rating and identical temperature coefficients. The substitute maintains full electrical equivalence and physical compatibility for through-hole PCB applications.

Q: What are the physical dimension differences between these parts?

A: The ERO-S2PHF3000 measures 0.067" diameter × 0.126" length (1.70mm × 3.20mm). The RNMF14FTC300R measures 0.070" diameter × 0.130" length (1.78mm × 3.30mm). These minor variations are within standard tolerances for axial resistor form factors and do not affect PCB layout compatibility.

Q: Does the RNMF14FTC300R offer any additional benefits?

A: The substitute includes flame retardant coating and safety designation features not specified in the original part. It also provides ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for modern applications. The operating temperature range extends to 155°C compared to 150°C for the original part.

Q: What packaging options are available for the RNMF14FTC300R?

A: The RNMF14FTC300R is supplied in Cut Tape (CT) packaging format. Inventory availability is 13,863 pieces in new original stock.

Q: Are there any compatibility concerns when substituting this part?

A: No compatibility concerns exist. Both parts share identical electrical specifications, axial package configuration, and two-terminal design. The substitute is suitable for direct replacement in all applications where the ERO-S2PHF3000 was originally specified.