ERO-S2PHF5100 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF5100 is a 510 Ohm ±1% 0.25W (1/4W) 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 design support, maintenance, 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-S2PHF5100

Panasonic Electronic ComponentsIn Stock: 856ERO-S2PHF5100 Datasheet

Current PartRFQ

RNMF14FTC510R

Stackpole Electronics IncIn Stock: 12754RNMF14FTC510R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERO-S2PHF5100 is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance Value: 510 Ohms (exact match required)
• Tolerance: ±1% (no deviation permitted)
• Power Rating: 0.25W / 1/4W (exact match required)
• Composition: Metal Film (required for performance equivalence)
• Temperature Coefficient: ±50ppm/°C (maximum allowed variance)
• Operating Temperature Range: Minimum -55°C ~ 150°C (substitute must meet or exceed)
• Package Type: Axial (physical form factor requirement)
• Termination Count: 2 (standard for axial resistors)

The RNMF14FTC510R from Stackpole Electronics Inc meets all mandatory electrical parameters and maintains compatible physical dimensions within acceptable manufacturing tolerances for axial resistors.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC510R is a direct functional equivalent for the obsolete ERO-S2PHF5100. Both components share identical electrical specifications: 510 Ohm resistance, ±1% tolerance, 0.25W power rating, metal film composition, and ±50ppm/°C temperature coefficient. The substitute operates across an extended temperature range (-55°C ~ 155°C versus -55°C ~ 150°C), providing additional thermal margin.

Physical dimensions differ marginally within standard manufacturing tolerances for axial resistors. The RNMF14FTC510R measures 0.070" diameter × 0.130" length compared to 0.067" diameter × 0.126" length for the original part. These dimensional variations remain within acceptable limits for standard PCB through-hole layouts and do not require design modification.

The RNMF14FTC510R carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The substitute is currently in active production with substantial inventory availability (12,678 pieces), ensuring supply continuity for ongoing applications.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC510R be used as a direct replacement for the ERO-S2PHF5100?

A: Yes. Both components meet identical electrical specifications: 510 Ohms ±1%, 0.25W power rating, metal film construction, and ±50ppm/°C temperature coefficient. Physical dimensions are compatible with standard axial resistor PCB layouts.

Q: What are the dimensional differences between these parts?

A: The RNMF14FTC510R is marginally larger: 0.070" diameter × 0.130" length versus 0.067" diameter × 0.126" length for the ERO-S2PHF5100. These differences fall within standard manufacturing tolerances for axial resistors and do not require PCB redesign.

Q: Does the RNMF14FTC510R meet current compliance standards?

A: Yes. The RNMF14FTC510R is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the operating temperature range for the substitute part?

A: The RNMF14FTC510R operates from -55°C to 155°C, which exceeds the original part's range of -55°C to 150°C, providing additional thermal margin.

Q: Is the RNMF14FTC510R currently available?

A: Yes. The RNMF14FTC510R is in active production status with 12,678 pieces in current inventory, ensuring supply availability for production and maintenance applications.

Q: Are there any differences in moisture sensitivity between these parts?

A: The ERO-S2PHF5100 specifies MSL 1 (Unlimited). The RNMF14FTC510R lists moisture sensitivity as Not Applicable, indicating no moisture-related restrictions for either component in standard storage and handling conditions.