ERO-S2PHF3303 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF3303 is a 330 kOhms ±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 and production continuity. Substitute parts must maintain identical electrical specifications and compatible physical dimensions to ensure direct circuit board compatibility.

Substiute Parts

ERO-S2PHF3303

Panasonic Electronic ComponentsIn Stock: 957ERO-S2PHF3303 Datasheet

Current PartRFQ

RNMF14FTC330K

Stackpole Electronics IncIn Stock: 8677RNMF14FTC330K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERO-S2PHF3303 is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance Value: 330 kOhms (exact match required)
• Tolerance: ±1% (no deviation permitted)
• Power Rating: 0.25W / 1/4W (minimum requirement)
• Composition: Metal Film (maintains performance characteristics)
• Temperature Coefficient: ±50ppm/°C (ensures stability equivalence)
• Operating Temperature Range: Minimum -55°C ~ 150°C (substitute must meet or exceed)
• Package Type: Axial (physical form factor compatibility)
• Physical Dimensions: Compatible with 0.067" Dia x 0.126" L footprint (minor dimensional variance acceptable within standard manufacturing tolerances)

The RNMF14FTC330K from Stackpole Electronics Inc meets all substitution criteria and is classified as an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC330K is a direct functional equivalent to the ERO-S2PHF3303. Selection of this substitute is supported by:

• Electrical Equivalence: All critical electrical parameters (resistance, tolerance, power rating, temperature coefficient) are identical.
• Physical Compatibility: Axial package dimensions are within standard manufacturing tolerances and compatible with existing PCB layouts designed for the original component.
• Product Status: The substitute is an active product with current manufacturing support, ensuring long-term availability and supply chain continuity.
• Regulatory Compliance: The RNMF14FTC330K carries ROHS3 compliance certification, meeting modern environmental and safety standards.
• Enhanced Operating Range: The substitute provides an extended upper operating temperature limit (155°C vs. 150°C), offering additional thermal margin.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC330K be used as a direct replacement for the ERO-S2PHF3303?

A: Yes. Both components share identical electrical specifications (330 kOhms, ±1%, 0.25W, ±50ppm/°C) and compatible axial package dimensions. The substitute meets all functional requirements for direct circuit board substitution.

Q: Are there dimensional differences between these components?

A: Minor dimensional variance exists. The ERO-S2PHF3303 measures 0.067" Dia x 0.126" L, while the RNMF14FTC330K measures 0.070" Dia x 0.130" L. These differences fall within standard manufacturing tolerances for axial resistors and do not affect PCB compatibility or circuit performance.

Q: What is the significance of the flame retardant coating on the RNMF14FTC330K?

A: The flame retardant coating and safety designation on the Stackpole component provide enhanced safety characteristics. This feature does not alter electrical performance and is compatible with applications requiring the original component.

Q: Does the extended operating temperature range of the substitute affect compatibility?

A: No. The RNMF14FTC330K operating range of -55°C ~ 155°C exceeds the original specification of -55°C ~ 150°C. This provides additional thermal margin and does not compromise compatibility with designs specified for the original component.

Q: Is the RNMF14FTC330K RoHS compliant?

A: Yes. The RNMF14FTC330K is ROHS3 compliant, meeting current environmental and regulatory requirements. The original ERO-S2PHF3303 RoHS status was not specified in available documentation.