14FPR005E Equivalent & Substitute Parts

Part Overview

The 14FPR005E is a 5 mOhms ±1% 4.5W axial through-hole resistor manufactured by Ohmite, designed for current sense applications with non-inductive metal element construction. This part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement planning. The part operates across a temperature range of -55°C to 200°C and meets ROHS3 compliance requirements.

Substiute Parts

14FPR005E

OhmiteIn Stock: 83914FPR005E Datasheet

Current PartRFQ

17FPR005E

OhmiteIn Stock: 121017FPR005E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 17FPR005E qualifies as a direct substitute for the 14FPR005E based on the following critical parameters:

• Resistance Value: Both parts specify 5 mOhms
• Tolerance: Both maintain ±1% tolerance
• Composition: Both use metal element construction
• Features: Both provide current sense and non-inductive characteristics
• Temperature Coefficient: Both rated at ±100ppm/°C
• Operating Temperature Range: Both support -55°C to 200°C
• Package Type: Both are axial configuration
• RoHS Compliance: Both meet ROHS3 requirements

The primary difference is the power rating: the 17FPR005E provides 7W versus the 14FPR005E's 4.5W. This represents a higher power capability within the same electrical and mechanical specifications, making it suitable for applications requiring equal or greater thermal dissipation capacity.

Parameter Comparison

Engineering Selection Recommendations

The 17FPR005E is the recommended substitute for the obsolete 14FPR005E. Both parts maintain identical electrical specifications for resistance, tolerance, temperature coefficient, and operating range. The 17FPR005E carries active product status with ROHS3 compliance, ensuring continued availability and regulatory alignment.

The increased power rating of 7W in the 17FPR005E provides enhanced thermal margin compared to the 4.5W rating of the 14FPR005E. This upgrade is compatible with applications designed for the original part and offers improved reliability in current sense circuits operating at or near maximum power dissipation limits.

Physical dimensions differ between the two parts. The 17FPR005E has a larger diameter (0.375" versus 0.335") and greater length (1.500" versus 1.059"). PCB layout and mechanical clearance must be verified before implementation to ensure the substitute fits within the available space.

Frequently Asked Questions (FAQ)

Q: Can the 17FPR005E directly replace the 14FPR005E in existing designs?

A: The 17FPR005E is electrically equivalent to the 14FPR005E across all critical parameters: resistance, tolerance, temperature coefficient, and operating range. Physical dimensions are larger, requiring verification of PCB layout and mechanical clearance before substitution.

Q: What is the primary advantage of using the 17FPR005E over the 14FPR005E?

A: The 17FPR005E provides a higher power rating of 7W compared to 4.5W, offering greater thermal dissipation capacity. Additionally, the 17FPR005E maintains active product status, ensuring long-term availability and supply chain continuity.

Q: Are there any compliance differences between these parts?

A: Both parts meet ROHS3 compliance requirements. The 17FPR005E additionally carries REACH Unaffected status, providing expanded regulatory coverage.

Q: How do the physical dimensions affect substitution?

A: The 17FPR005E measures 0.375" diameter by 1.500" length, compared to the 14FPR005E's 0.335" diameter by 1.059" length. PCB footprint spacing and component clearance must accommodate the larger axial resistor body.

Q: Is the 17FPR005E suitable for current sense applications?

A: Yes. Both parts feature non-inductive metal element construction specifically designed for current sense applications. The 17FPR005E maintains these characteristics while providing enhanced power handling.