DC1390R-224K Equivalent & Substitute Parts

Part Overview

The DC1390R-224K is a 220 µH fixed unshielded inductor manufactured by API Delevan Inc., rated for 6.9 A continuous current with a maximum DC resistance of 50 mOhm. This through-hole radial component operates across the temperature range of -55°C to 125°C and is designed for applications requiring stable inductance at 1 kHz test frequency. The part is currently active in production with 1044 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

DC1390R-224K

API Delevan Inc.In Stock: 1128DC1390R-224K Datasheet

Current PartRFQ

1140-221K-RC

Bourns Inc.In Stock: 12961140-221K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DC1390R-224K are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Electrical Parameters (Must Match):

• Inductance value: 220 µH
• Inductance tolerance: ±10%
• DC resistance: 50 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Parameters (Must Match):

• Mounting type: Through hole
• Package configuration: Radial, vertical cylinder
• Physical compatibility with board layout

Compliance Parameters (Must Match):

• RoHS3 compliance status
• REACH unaffected status

The substitute part 1140-221K-RC from Bourns Inc. meets all these criteria. While the current rating differs (7.4 A versus 6.9 A), this represents an enhanced capability rather than a limitation, as the substitute can handle the same or greater current loads. The saturation current specification (14 A versus 9.09 A) similarly indicates improved performance headroom. Operating temperature range differs slightly (-55°C to 105°C versus -55°C to 125°C), which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the DC1390R-224K and 1140-221K-RC are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Selection Criteria:

The DC1390R-224K remains the primary choice when the extended upper operating temperature limit of 125°C is required. Applications operating consistently above 105°C must use the original part number.

The 1140-221K-RC from Bourns Inc. is suitable as a substitute when operating temperatures remain within -55°C to 105°C. The higher current rating (7.4 A) and saturation current (14 A) provide additional performance margin in applications where the DC1390R-224K current specifications are adequate. Physical dimensions are compatible with standard through-hole board layouts, with the substitute measuring slightly larger in diameter (0.020" difference) and slightly shorter in height (0.034" difference).

Both parts maintain identical inductance values, tolerances, and DC resistance specifications, ensuring equivalent circuit performance in filtering, energy storage, and impedance matching applications.

Frequently Asked Questions (FAQ)

Q: Can the 1140-221K-RC directly replace the DC1390R-224K in all applications?

A: Direct replacement is possible when the application operating temperature does not exceed 105°C. The DC1390R-224K must be retained for applications requiring operation up to 125°C. All other electrical and mechanical specifications are equivalent or superior in the substitute part.

Q: What is the significance of the higher current rating in the substitute part?

A: The 1140-221K-RC is rated for 7.4 A continuous current compared to 6.9 A for the DC1390R-224K. This represents enhanced current-handling capability and does not create compatibility issues. The substitute can safely operate at the original part's rated current with additional margin.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: Yes. The substitute part measures 1.500" diameter (versus 1.480") and 1.030" height (versus 1.064"). These differences of 0.020" and 0.034" respectively are within standard through-hole component tolerance ranges and compatible with radial lead spacing on printed circuit boards.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the DC1390R-224K and 1140-221K-RC are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance regulations for electronic components.

Q: What is the impact of the different saturation current specifications?

A: The 1140-221K-RC has a saturation current of 14 A compared to 9.09 A for the DC1390R-224K. This indicates the substitute part maintains inductance stability at higher current levels, providing additional design margin without affecting performance at the original part's rated current.

Q: How should I verify compatibility for a specific application?

A: Confirm that your application's operating temperature range falls within -55°C to 105°C. Verify that the inductance value of 220 µH and DC resistance of 50 mOhm maximum meet circuit requirements. Confirm that through-hole radial mounting is compatible with your PCB layout. If all conditions are met, the substitute part is electrically and mechanically equivalent.