ERO-S2PHF33R0 Equivalent & Substitute Parts

Part Overview

The ERO-S2PHF33R0 is a 33 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 and production continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

ERO-S2PHF33R0

Panasonic Electronic ComponentsIn Stock: 842ERO-S2PHF33R0 Datasheet

Current PartRFQ

RNMF14FTC33R0

Stackpole Electronics IncIn Stock: 75265RNMF14FTC33R0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERO-S2PHF33R0 is based on strict equivalence across the following critical parameters:

• Resistance Value: 33 Ohms (exact match required)
• Tolerance: ±1% (maintains circuit accuracy specifications)
• Power Rating: 0.25W / 1/4W (thermal and current handling capability)
• Composition: Metal Film (electrical performance characteristics)
• Package: Axial (mechanical fit and PCB compatibility)
• Temperature Coefficient: ±50ppm/°C (frequency and temperature stability)
• Operating Temperature Range: Minimum -55°C ~ 150°C (environmental suitability)

The RNMF14FTC33R0 from Stackpole Electronics Inc meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RNMF14FTC33R0 is the qualified substitute for the obsolete ERO-S2PHF33R0 based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters match exactly—resistance value, tolerance, power rating, composition, and temperature coefficient. The substitute's operating temperature range of -55°C ~ 155°C exceeds the original specification of -55°C ~ 150°C, providing enhanced thermal margin.

Mechanical Compatibility: Physical dimensions are within acceptable tolerance for axial through-hole resistor applications. The substitute's slightly larger diameter (0.070" vs 0.067") and length (0.130" vs 0.126") remain compatible with standard PCB hole spacing and component placement.

Compliance and Availability: The RNMF14FTC33R0 is an active product with substantial inventory availability (75,187 pcs), ensuring long-term supply continuity. Both parts share identical ECCN (EAR99) and HTSUS (8533.21.0090) classifications. The substitute carries RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.

Additional Features: The Stackpole component includes flame retardant coating and safety-rated construction, providing enhanced reliability characteristics beyond the original specification.

Frequently Asked Questions (FAQ)

Q: Can the RNMF14FTC33R0 be used as a direct replacement for the ERO-S2PHF33R0?

A: Yes. The RNMF14FTC33R0 meets all critical electrical and mechanical parameters required for direct substitution. Resistance, tolerance, power rating, composition, package type, and temperature coefficient are identical. Physical dimensions are compatible with standard PCB layouts for axial resistors.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer (Panasonic vs Stackpole), product status (obsolete vs active), and minor physical dimensions. The substitute offers an extended operating temperature range (+5°C additional maximum), flame retardant coating, and modern compliance certifications (RoHS3, REACH).

Q: Are there any compatibility concerns with PCB assembly?

A: No. Both components use identical axial through-hole packaging. The RNMF14FTC33R0's slightly larger dimensions (0.070" diameter, 0.130" length vs 0.067" diameter, 0.126" length) remain within standard PCB hole spacing tolerances and do not require design modifications.

Q: Does the substitute meet current regulatory requirements?

A: Yes. The RNMF14FTC33R0 is RoHS3 compliant and REACH unaffected, meeting current environmental and safety regulations. Both parts share the same ECCN and HTSUS classifications for export control purposes.

Q: What is the availability status of the substitute?

A: The RNMF14FTC33R0 is an active product with 75,187 pieces in current inventory, ensuring reliable long-term supply compared to the obsolete ERO-S2PHF33R0.