ERO-S2PHF5101 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF5101 is a 5.1 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 is suitable for applications requiring precision metal film resistor performance in axial package configurations.

Substiute Parts

ERO-S2PHF5101

Panasonic Electronic ComponentsIn Stock: 1120ERO-S2PHF5101 Datasheet

Current PartRFQ

RNMF14FTC5K10

Stackpole Electronics IncIn Stock: 29674RNMF14FTC5K10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERO-S2PHF5101 is determined by strict equivalence across the following critical parameters:

• Resistance value: 5.1 kOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Composition: Metal Film
• Package: Axial through-hole
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: minimum -55°C to 150°C

The RNMF14FTC5K10 from Stackpole Electronics Inc meets all substitution criteria. Both parts share identical electrical specifications and axial package configuration, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC5K10 is the direct substitute for the obsolete ERO-S2PHF5101. Selection is based on the following factors:

• Electrical equivalence: Both parts deliver identical resistance, tolerance, power rating, and temperature coefficient specifications.
• Product status: The RNMF14FTC5K10 is active production, ensuring long-term availability and supply chain continuity.
• Compliance: The Stackpole part carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.
• Physical compatibility: Axial package configuration and lead termination count are identical. Dimensional variance (0.070" vs 0.067" diameter; 0.130" vs 0.126" length) is within standard PCB layout tolerances for through-hole axial components.
• Temperature performance: The substitute part extends the upper operating temperature limit to 155°C, providing additional thermal margin.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC5K10 be used as a direct replacement for the ERO-S2PHF5101?

A: Yes. Both parts are 5.1 kOhms ±1% metal film resistors with 0.25W power rating, ±50ppm/°C temperature coefficient, and axial through-hole package configuration. Electrical and mechanical compatibility is confirmed.

Q: What is the significance of the dimensional difference between the two parts?

A: The ERO-S2PHF5101 measures 0.067" diameter x 0.126" length, while the RNMF14FTC5K10 measures 0.070" diameter x 0.130" length. These variations are within standard tolerances for axial resistor packages and do not affect PCB layout compatibility for typical through-hole designs.

Q: Why is the ERO-S2PHF5101 listed as obsolete?

A: Panasonic has discontinued this part number. The RNMF14FTC5K10 provides functional and electrical equivalence for new designs and replacement applications.

Q: Does the RNMF14FTC5K10 meet current regulatory standards?

A: Yes. The Stackpole part is ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations.

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

A: No performance differences exist in the specified electrical parameters. The RNMF14FTC5K10 includes flame retardant coating and safety features, and extends the upper operating temperature to 155°C compared to 150°C for the original part.