Equivalent & Substitute Parts for Ohmite 14FPR010E

Part Overview

The Ohmite 14FPR010E is a 10 mOhms ±1% 4.5W through-hole axial resistor designed for current sense applications with non-inductive metal element construction. This part is classified as obsolete, making identification of suitable substitute components necessary for ongoing procurement and design continuity. The 14FPR010E operates across a wide temperature range of -55°C to 200°C and maintains ROHS3 compliance.

Substiute Parts

14FPR010E

OhmiteIn Stock: 84614FPR010E Datasheet

Current PartRFQ

17FPR010E

OhmiteIn Stock: 77117FPR010E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 14FPR010E is determined by the following critical parameters:

• Resistance Value: 10 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Composition: Metal Element (exact match required)
• Features: Current Sense, Non-Inductive (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 200°C (exact match required)
• Package Type: Axial (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The Ohmite 17FPR010E meets all these criteria and is qualified as a direct substitute. The primary difference is an increased power rating of 7W compared to the original 4.5W, along with corresponding dimensional changes to accommodate the higher power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

The Ohmite 17FPR010E is the qualified substitute for the obsolete 14FPR010E. Both components maintain identical electrical specifications for resistance, tolerance, temperature coefficient, and operating temperature range. The 17FPR010E carries active product status, ensuring continued availability and supply chain reliability.

The increased power rating of the 17FPR010E (7W versus 4.5W) provides enhanced thermal margin in current sense applications. The larger physical dimensions accommodate this increased power capability. Both components maintain ROHS3 compliance and identical non-inductive metal element construction suitable for precision current sensing circuits.

Frequently Asked Questions (FAQ)

Q: Can the 17FPR010E directly replace the 14FPR010E in existing designs?

A: Yes. The 17FPR010E is electrically and functionally equivalent to the 14FPR010E across all critical parameters: resistance value, tolerance, temperature coefficient, operating temperature range, and package type. The higher power rating provides additional thermal capability without affecting circuit performance.

Q: Are there dimensional compatibility concerns with the 17FPR010E?

A: The 17FPR010E has larger physical dimensions (0.375" Dia x 1.500" L) compared to the 14FPR010E (0.335" Dia x 1.059" L). PCB layout and mechanical clearance must be verified to accommodate these dimensional changes. Both components use axial packaging and standard through-hole terminations.

Q: What is the significance of the higher power rating on the 17FPR010E?

A: The 7W rating on the 17FPR010E, compared to 4.5W on the 14FPR010E, indicates increased power dissipation capability. This provides thermal margin in current sense applications and reduces operating temperature rise under load. The electrical characteristics remain identical.

Q: Are both components RoHS compliant?

A: Yes. Both the 14FPR010E and 17FPR010E are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Why is the 14FPR010E classified as obsolete?

A: The 14FPR010E is no longer in active production. The 17FPR010E represents the current active product offering from Ohmite for this resistance and tolerance specification, providing improved thermal performance and continued supply availability.