74F225AI-RC Equivalent & Substitute Parts

Part Overview

The 74F225AI-RC is a 22 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 500 mA maximum current with 2Ohm maximum DC resistance. This component is designed for through-hole axial mounting applications requiring fixed inductance in the 22 µH range. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

74F225AI-RC

Bourns Inc.In Stock: 89974F225AI-RC Datasheet

Current PartRFQ

B82144A2223K000

EPCOS - TDK ElectronicsIn Stock: 5064B82144A2223K000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74F225AI-RC is based on the following critical parameters:

• Inductance Value: Must be 22 µH ±10% to maintain circuit functionality
• Mounting Type: Must be through-hole axial to ensure mechanical compatibility
• Core Configuration: Drum core wirewound construction with unshielded design
• Current Handling: Minimum 500 mA rating required for circuit operation
• DC Resistance: Maximum 2Ohm to prevent excessive power dissipation
• Operating Temperature Range: Must support -55°C ~ 105°C minimum

The substitute part B82144A2223K000 meets these core substitution criteria while offering improved specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

The B82144A2223K000 is a direct functional substitute for the 74F225AI-RC based on matching inductance value, tolerance, and mounting configuration. The substitute part offers superior electrical performance with lower DC resistance (350mOhm vs 2Ohm) and higher current rating (1.1 A vs 500 mA), providing design margin for the same circuit application.

Both parts maintain ROHS3 compliance. The substitute part is currently in active production status, ensuring long-term availability compared to the obsolete 74F225AI-RC. The extended operating temperature range of the substitute (-55°C ~ 125°C vs -55°C ~ 105°C) provides additional thermal margin for demanding applications.

The core material difference (ferrite vs iron) and self-resonant frequency variation (12 MHz vs 28 MHz) should be evaluated for high-frequency circuit applications where these characteristics impact performance.

Frequently Asked Questions (FAQ)

Q: Can B82144A2223K000 directly replace 74F225AI-RC in existing designs?

A: Yes, for applications operating within the 74F225AI-RC specifications. The substitute maintains identical inductance (22 µH ±10%), tolerance, and axial through-hole mounting. The lower DC resistance and higher current rating of the substitute provide improved performance margins.

Q: What are the key differences between these parts?

A: The primary differences are core material (iron vs ferrite), DC resistance (2Ohm vs 350mOhm), current rating (500 mA vs 1.1 A), and self-resonant frequency (28 MHz vs 12 MHz). These differences may affect performance in high-frequency or high-current applications.

Q: Are both parts RoHS compliant?

A: Yes, both 74F225AI-RC and B82144A2223K000 are ROHS3 compliant.

Q: What is the physical size compatibility?

A: Both parts use axial through-hole packaging with similar dimensions (0.200" Dia x 0.500" L vs 0.205" Dia x 0.472" L). Physical fit should be verified for space-constrained applications.

Q: Why is the 74F225AI-RC obsolete?

A: The 74F225AI-RC is listed as obsolete by the manufacturer. The B82144A2223K000 is an active product from EPCOS - TDK Electronics, ensuring continued availability and supply chain reliability.