ERO-S2PHF4300 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF4300 is a 430 Ohm ±1% metal film axial resistor rated at 0.25W (1/4W) for through-hole applications. Manufactured by Panasonic Electronic Components, this part operates across -55°C to 150°C with a temperature coefficient of ±50ppm/°C. The product is currently obsolete, making equivalent substitutes necessary for ongoing system maintenance, repairs, and new designs requiring this specific resistance value and tolerance class.

Substiute Parts

ERO-S2PHF4300

Panasonic Electronic ComponentsIn Stock: 1043ERO-S2PHF4300 Datasheet

Current PartRFQ

RNMF14FTC430R

Stackpole Electronics IncIn Stock: 30813RNMF14FTC430R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERO-S2PHF4300 is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance value: 430 Ohms (exact match required)
• Tolerance: ±1% (maintains precision class)
• Power rating: 0.25W / 1/4W (thermal capability)
• Composition: Metal Film (electrical characteristics and stability)
• Package: Axial through-hole (mechanical fit and PCB compatibility)
• Temperature coefficient: ±50ppm/°C (frequency and temperature stability)
• Operating temperature range: minimum -55°C to 150°C (environmental compatibility)

The RNMF14FTC430R from Stackpole Electronics Inc meets all these criteria and qualifies as a direct electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC430R is the qualified substitute for the obsolete ERO-S2PHF4300. Both parts share identical electrical specifications (430 Ohms, ±1%, 0.25W, ±50ppm/°C) and axial through-hole packaging. The Stackpole part offers an extended upper operating temperature limit of 155°C versus 150°C on the original, providing additional thermal margin. The RNMF14FTC430R is currently in active production with 30,720 units in stock, ensuring supply continuity. Both parts carry identical ECCN (EAR99) and HTSUS (8533.21.0090) classifications. Physical dimensions differ slightly (0.070" vs 0.067" diameter; 0.130" vs 0.126" length), but remain within standard axial resistor tolerances and are compatible with existing through-hole PCB layouts. The Stackpole part includes flame retardant coating and safety features, meeting ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC430R be used as a direct replacement for the ERO-S2PHF4300?

A: Yes. Both parts are 430 Ohm ±1% metal film axial resistors rated at 0.25W with identical temperature coefficients and overlapping operating ranges. Electrical performance is equivalent. Physical dimensions are within standard tolerances for axial through-hole applications.

Q: What is the difference in physical size between these parts?

A: The ERO-S2PHF4300 measures 0.067" diameter x 0.126" length, while the RNMF14FTC430R measures 0.070" diameter x 0.130" length. These differences are minor and do not affect PCB layout compatibility for standard through-hole designs.

Q: Why is the ERO-S2PHF4300 marked as obsolete?

A: The ERO-S2PHF4300 is no longer manufactured by Panasonic. The RNMF14FTC430R from Stackpole Electronics Inc is the active equivalent, ensuring long-term supply availability.

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

A: Both parts share the same ECCN (EAR99) and HTSUS (8533.21.0090) classifications. The RNMF14FTC430R is ROHS3 compliant and REACH unaffected. The original part's compliance status was not specified in available data.

Q: What is the temperature operating range difference?

A: The ERO-S2PHF4300 operates from -55°C to 150°C. The RNMF14FTC430R extends the upper limit to 155°C, providing 5°C additional thermal headroom without affecting lower temperature performance.

Q: Is the axial package compatible with my existing PCB design?

A: Yes, provided your design uses standard through-hole axial resistor footprints. The minor dimensional differences between the two parts fall within normal manufacturing tolerances for this package type.