Ohmite 14FPR030E Equivalent & Substitute Parts

Part Overview

The Ohmite 14FPR030E is a 30 mOhms ±1% 4.5W through-hole axial resistor designed for current sense applications with non-inductive metal element construction. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The 14FPR030E operates across a wide temperature range of -55°C to 200°C and maintains ROHS3 compliance.

Substiute Parts

14FPR030E

OhmiteIn Stock: 86914FPR030E Datasheet

Current PartRFQ

17FPR030E

OhmiteIn Stock: 108217FPR030E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 14FPR030E is determined by the following critical parameters:

• Resistance value: 30 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: ±50ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 200°C (exact match required)
• Package Type: Axial (exact match required)

The Ohmite 17FPR030E 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, which provides enhanced thermal capability while maintaining identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The Ohmite 17FPR030E is the qualified substitute for the obsolete 14FPR030E. Both components maintain identical electrical specifications including resistance value, tolerance, temperature coefficient, and operating temperature range. The 17FPR030E carries Active product status, ensuring long-term availability and supply chain continuity.

The 17FPR030E features a higher power rating of 7W versus the original 4.5W, providing improved thermal performance without compromising electrical characteristics. This upgrade is compatible with applications designed for the 14FPR030E where thermal margins are acceptable.

Both parts maintain ROHS3 compliance and identical non-inductive metal element construction suitable for current sense applications. The slightly larger physical dimensions of the 17FPR030E (0.375" Dia x 1.500" L versus 0.335" Dia x 1.059" L) must be evaluated for PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 17FPR030E directly replace the 14FPR030E in existing designs?

A: Yes, the 17FPR030E is electrically and mechanically compatible. The higher 7W power rating provides additional thermal capability. Physical dimensions are slightly larger and must be verified for PCB layout fit.

Q: What is the primary reason for substitution?

A: The 14FPR030E is classified as obsolete. The 17FPR030E is an active product from the same manufacturer with identical electrical specifications.

Q: Are there any compliance differences between these parts?

A: Both components are ROHS3 compliant. No compliance differences exist between the 14FPR030E and 17FPR030E.

Q: How do the physical dimensions differ?

A: The 14FPR030E measures 0.335" Dia x 1.059" L (8.51mm x 26.90mm). The 17FPR030E measures 0.375" Dia x 1.500" L (9.53mm x 38.10mm). The substitute is slightly larger in both diameter and length.

Q: Is the increased power rating of the 17FPR030E a concern?

A: No. The higher 7W rating of the 17FPR030E compared to the 4.5W original provides enhanced thermal performance while maintaining all electrical parameters. This is a beneficial upgrade for current sense applications.

Q: What parameters must remain identical for substitution?

A: Resistance (30 mOhms), tolerance (±1%), composition (Metal Element), features (Current Sense, Non-Inductive), temperature coefficient (±50ppm/°C), operating temperature range (-55°C to 200°C), and package type (Axial) must all match exactly.