ERO-S2PHF4302 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF4302 is a 43 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 metal film composition provides stable performance across the operating temperature range of -55°C to 150°C with a temperature coefficient of ±50ppm/°C.

Substiute Parts

ERO-S2PHF4302

Panasonic Electronic ComponentsIn Stock: 1149ERO-S2PHF4302 Datasheet

Current PartRFQ

RNMF14FTC43K0

Stackpole Electronics IncIn Stock: 20547RNMF14FTC43K0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ERO-S2PHF4302 is determined by strict equivalence across the following critical parameters:

• Resistance value: 43 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)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Operating temperature range: minimum -55°C to 150°C (substitute must meet or exceed)

The RNMF14FTC43K0 from Stackpole Electronics Inc meets all substitution criteria. Both components share identical electrical specifications and package configuration, with the substitute offering an extended upper operating temperature limit of 155°C and active product status.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC43K0 is the direct functional equivalent for the obsolete ERO-S2PHF4302. Selection of this substitute is supported by:

• Identical electrical specifications (resistance, tolerance, power rating, temperature coefficient)
• Matching package configuration (axial through-hole)
• Active product status ensuring long-term availability
• ROHS3 compliance certification
• Extended upper operating temperature limit (155°C vs. 150°C)
• Flame retardant coating and safety features in the substitute provide additional material properties

Physical dimensions show minor variation (0.070" vs. 0.067" diameter; 0.130" vs. 0.126" length), which remains within typical PCB layout tolerances for axial through-hole components.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC43K0 directly replace the ERO-S2PHF4302 in existing designs?

A: Yes. Both components share identical electrical specifications and axial package configuration. The minor physical dimension differences (approximately 0.003" diameter and 0.004" length) are within standard PCB design tolerances for through-hole resistors.

Q: What is the significance of the flame retardant coating on the RNMF14FTC43K0?

A: The flame retardant coating is a material property of the Stackpole substitute that provides additional safety characteristics. This does not affect electrical performance or substitution compatibility.

Q: Why is the operating temperature range different between the two parts?

A: The RNMF14FTC43K0 extends to 155°C maximum, compared to 150°C for the ERO-S2PHF4302. This represents an improvement in the substitute and does not create compatibility issues.

Q: Are there any compliance differences between these parts?

A: The RNMF14FTC43K0 carries ROHS3 compliance certification and REACH unaffected status. The original ERO-S2PHF4302 compliance information is not specified in available documentation.

Q: What packaging options are available for the RNMF14FTC43K0?

A: The substitute is supplied in Cut Tape (CT) packaging, suitable for automated assembly processes.