Ohmite 14FPR090E Equivalent & Substitute Parts

Part Overview

The Ohmite 14FPR090E is a 90 mOhms ±1% 4.5W axial through-hole resistor designed for current sense applications with non-inductive metal element construction. This part is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement planning. The 14FPR090E operates across a wide temperature range of -55°C to 200°C and maintains ROHS3 compliance.

Substiute Parts

14FPR090E

OhmiteIn Stock: 87014FPR090E Datasheet

Current PartRFQ

17FPR090E

OhmiteIn Stock: 89817FPR090E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 17FPR090E qualifies as a direct substitute based on the following matching parameters:

• Resistance value: 90 mOhms (identical)
• Tolerance: ±1% (identical)
• Composition: Metal Element (identical)
• Features: Current Sense, Non-Inductive (identical)
• Temperature Coefficient: ±50ppm/°C (identical)
• Operating Temperature Range: -55°C to 200°C (identical)
• Package Type: Axial (identical)
• RoHS Status: ROHS3 Compliant (identical)

The primary difference is the power rating increase from 4.5W to 7W, which represents an enhancement in thermal capability while maintaining all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The Ohmite 17FPR090E is the manufacturer-recommended substitute for the obsolete 14FPR090E. Both parts maintain identical electrical specifications including resistance, tolerance, temperature coefficient, and operating temperature range. The 17FPR090E is currently in active production status, ensuring long-term availability and supply chain continuity.

The increased power rating of 7W versus 4.5W provides enhanced thermal margin without compromising any electrical or mechanical compatibility. Both parts carry ROHS3 compliance certification. The physical size increase from 0.335" to 0.375" diameter and 1.059" to 1.500" length must be verified against PCB layout constraints and mechanical clearances in the target application.

Frequently Asked Questions (FAQ)

Q: Can the 17FPR090E directly replace the 14FPR090E in existing designs?

A: Yes, the 17FPR090E is electrically and mechanically compatible. The higher power rating provides additional thermal capability. Physical dimensions must be confirmed to fit the available PCB space.

Q: What is the significance of the power rating difference?

A: The 17FPR090E's 7W rating versus the 14FPR090E's 4.5W rating indicates improved thermal dissipation capability. This allows the substitute to handle higher current loads or ambient temperatures without exceeding maximum junction temperature limits.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant. No compliance disadvantages exist when substituting the 17FPR090E for the 14FPR090E.

Q: Why is the 14FPR090E obsolete?

A: The 14FPR090E is classified as obsolete by the manufacturer. The 17FPR090E represents the active production alternative with superior thermal performance.

Q: What physical constraints should be considered?

A: The 17FPR090E is larger in both diameter (0.375" vs 0.335") and length (1.500" vs 1.059"). PCB layout and mechanical clearances must accommodate these increased dimensions.