FIT68-7 Equivalent & Substitute Parts Reference

Part Overview

The FIT68-7 is a 18.64 µH unshielded toroidal inductor manufactured by Triad Magnetics, designed for applications requiring fixed inductance with high current handling capability. This component features an iron powder core, rated for 8.1 A continuous current, and operates across the temperature range of -40°C to 85°C. The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when identical electrical specifications, mechanical dimensions, and compliance certifications are maintained across alternative part numbers within the same manufacturer series.

Substiute Parts

FIT68-7
Triad MagneticsIn Stock: 1110FIT68-7 Datasheet
FIT68-7
Current Part
FIT68-7-B
Triad MagneticsIn Stock: 1084FIT68-7-B Datasheet
FIT68-7-B
Direct

Key Parameters

Parameter Value
Inductance 18.64 µH
Current Rating 8.1 A
DC Resistance (DCR) 14.8 mOhm Max
Core Material Iron Powder
Shielding Unshielded
Mounting Type Through Hole
Package Type Radial, Vertical (Open)
Operating Temperature Range -40°C to 85°C
Inductance Test Frequency 10 kHz
Physical Dimensions 0.875" L x 0.475" W (22.22 mm x 12.07 mm)
Height (Seated Max) 0.950" (24.13 mm)
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FIT68-7 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part FIT68-7-B maintains identical specifications in the following key areas:

Electrical Parameters:

  • Inductance value: 18.64 µH
  • Current rating: 8.1 A
  • DC resistance: 14.8 mOhm Max
  • Core material: Iron Powder
  • Shielding configuration: Unshielded
  • Operating temperature range: -40°C to 85°C
  • Test frequency: 10 kHz

Mechanical Parameters:

  • Mounting type: Through Hole
  • Package configuration: Radial, Vertical (Open)
  • Physical dimensions: 0.875" L x 0.475" W (22.22 mm x 12.07 mm)
  • Seated height: 0.950" (24.13 mm)

Compliance & Status:

  • Product status: Active
  • RoHS compliance: ROHS3 Compliant
  • REACH status: REACH Unaffected

The FIT68-7-B is classified as a direct manufacturer equivalent within the Triad Magnetics FIT series, differing only in part number designation while maintaining complete functional and physical interchangeability.

Parameter Comparison

Parameter FIT68-7 FIT68-7-B Match Status
Inductance 18.64 µH 18.64 µH Identical
Current Rating (Amps) 8.1 A 8.1 A Identical
DC Resistance (DCR) 14.8 mOhm Max 14.8 mOhm Max Identical
Core Material Iron Powder Iron Powder Identical
Shielding Unshielded Unshielded Identical
Mounting Type Through Hole Through Hole Identical
Package / Case Radial, Vertical (Open) Radial, Vertical (Open) Identical
Operating Temperature -40°C to 85°C -40°C to 85°C Identical
Inductance Test Frequency 10 kHz 10 kHz Identical
Physical Dimensions 0.875" L x 0.475" W (22.22 mm x 12.07 mm) 0.875" L x 0.475" W (22.22 mm x 12.07 mm) Identical
Height (Seated Max) 0.950" (24.13 mm) 0.950" (24.13 mm) Identical
RoHS Status ROHS3 Compliant ROHS3 Compliant Identical
REACH Status REACH Unaffected REACH Unaffected Identical

Engineering Selection Recommendations

Both FIT68-7 and FIT68-7-B are Active status products manufactured by Triad Magnetics within the FIT series. Selection between these parts is based on availability and supply chain considerations rather than technical differentiation. Both components maintain full ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The FIT68-7 currently maintains 1049 pieces in stock inventory, while the FIT68-7-B maintains 1034 pieces. Either part number is suitable for direct substitution in circuit designs requiring 18.64 µH inductance at 8.1 A current rating with 14.8 mOhm maximum DC resistance in through-hole toroidal configuration.

Frequently Asked Questions (FAQ)

Q: Can FIT68-7-B be used as a direct replacement for FIT68-7 in existing designs?

A: Yes. The FIT68-7-B is a direct equivalent with identical electrical specifications (18.64 µH inductance, 8.1 A current rating, 14.8 mOhm DCR), core material (iron powder), shielding (unshielded), and mechanical dimensions (0.875" L x 0.475" W, 0.950" seated height). Both are through-hole mounted in radial vertical configuration and operate across -40°C to 85°C.

Q: Are there any compliance differences between FIT68-7 and FIT68-7-B?

A: No. Both parts maintain identical compliance certifications: ROHS3 Compliant and REACH Unaffected status. No design modifications are required when substituting between these part numbers.

Q: What determines substitution eligibility for this inductor?

A: Substitution is determined by equivalence across inductance value, current rating, DC resistance, core material, shielding type, operating temperature range, mounting configuration, and physical dimensions. The FIT68-7-B meets all these criteria for the FIT68-7.

Q: Are the physical footprints identical between these parts?

A: Yes. Both components share identical dimensions: 0.875" length x 0.475" width (22.22 mm x 12.07 mm) with 0.950" maximum seated height. PCB layout and mechanical clearances require no modification when substituting between part numbers.

Q: What is the inductance test frequency for these components?

A: Both FIT68-7 and FIT68-7-B are tested at 10 kHz for inductance value verification.

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