74F106AP-RC Equivalent & Substitute Parts

Part Overview

The 74F106AP-RC is a 1 µH unshielded wirewound inductor manufactured by Bourns Inc., rated for 1 A continuous current with a maximum DC resistance of 200mOhm. This through-hole axial component operates across -55°C to 125°C and features a phenolic core with ±20% inductance tolerance. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

74F106AP-RC

Bourns Inc.In Stock: 114274F106AP-RC Datasheet

Current PartRFQ

1944R-14M

API Delevan Inc.In Stock: 7731944R-14M Datasheet

SimilarRFQ

B82144A2102K000

EPCOS - TDK ElectronicsIn Stock: 6838B82144A2102K000 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74F106AP-RC is determined by the following critical parameters: inductance value (1 µH nominal), current rating capability (minimum 1 A), DC resistance within acceptable operating margins, through-hole axial mounting configuration, unshielded construction, and compliance with RoHS3 standards. The ±20% inductance tolerance establishes the acceptable range for substitute parts. Operating temperature range (-55°C ~ 125°C) and package form factor must remain consistent with the original design footprint.

Two substitute parts meet these criteria with documented equivalency:

B82144A2102K000 (EPCOS - TDK Electronics): Matches the 1 µH inductance specification exactly with improved current rating (2.2 A vs. 1 A) and superior DC resistance (80mOhm vs. 200mOhm). Ferrite drum core construction provides enhanced performance characteristics while maintaining axial through-hole mounting and identical operating temperature range.

1944R-14M (API Delevan Inc.): Provides 1.2 µH inductance (within ±20% tolerance band), maintains 1 A current rating, and operates across the same temperature range. Molded construction with 280mOhm DCR represents a functional alternative for applications where the inductance tolerance and resistance parameters are acceptable.

Parameter Comparison

Engineering Selection Recommendations

B82144A2102K000 is the primary substitute for direct replacement applications. This part maintains exact inductance matching (1 µH), operates within identical temperature specifications, and provides superior electrical performance through lower DC resistance (80mOhm vs. 200mOhm) and higher current capacity (2.2 A vs. 1 A). The ferrite drum core construction and tighter tolerance (±10%) offer improved stability. Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance is confirmed; however, REACH status is listed as affected, requiring verification against specific regulatory requirements for your application region.

1944R-14M serves as an alternative where inductance tolerance of ±20% is acceptable and the 1.2 µH value falls within circuit design margins. This part maintains the original 1 A current rating and phenolic core material characteristics. Active product status and ROHS3 compliance support procurement viability. The higher DC resistance (280mOhm) must be evaluated against circuit performance requirements, particularly in applications sensitive to resistive losses.

Both substitutes maintain through-hole axial mounting compatibility and unshielded construction, ensuring mechanical and electrical interchangeability within the specified parameter envelope.

Frequently Asked Questions (FAQ)

Q: Can B82144A2102K000 replace 74F106AP-RC in all applications? A: B82144A2102K000 provides direct inductance equivalency (1 µH) with superior electrical characteristics. The higher current rating (2.2 A vs. 1 A) and lower DC resistance (80mOhm vs. 200mOhm) make it suitable for applications where the original part operated within design margins. Verify that the ferrite core material does not introduce unacceptable frequency response changes in your specific circuit topology.

Q: Is 1944R-14M acceptable as a substitute? A: 1944R-14M is acceptable where the inductance tolerance of ±20% permits the 1.2 µH value. The 200 nH difference (20% above nominal) must be evaluated against circuit tuning requirements and frequency response specifications. The higher DC resistance (280mOhm) increases resistive losses compared to the original part.

Q: What are the physical compatibility considerations? A: All three parts feature axial through-hole mounting in identical package form. Verify PCB hole spacing and lead diameter compatibility. B82144A2102K000 dimensions (5.20mm Dia x 12.00mm L) and 1944R-14M dimensions (4.90mm Dia x 11.35mm L) differ slightly from the original 74F106AP-RC (5.08mm Dia x 12.70mm L), but remain within standard through-hole component tolerances.

Q: Are there compliance differences between the substitutes? A: Both substitutes are ROHS3 compliant. B82144A2102K000 carries REACH Affected status, while 1944R-14M is REACH Unaffected. Confirm REACH compliance requirements for your end-use application and geographic market before final selection.

Q: How do core material differences affect performance? A: The original 74F106AP-RC uses phenolic core construction; B82144A2102K000 employs ferrite core technology. Ferrite cores typically provide better high-frequency performance and lower losses. 1944R-14M retains phenolic core material, offering closer material equivalency to the original design. Evaluate frequency response and Q-factor requirements for your application.