DC1390-223K Equivalent & Substitute Parts Reference

Part Overview

The DC1390-223K is a 22 µH fixed unshielded inductor manufactured by API Delevan Inc., designed for through-hole mounting applications. This component features a ferrite core with a current rating of 16.3 A, maximum DC resistance of 9 mOhm, and operates across a temperature range of -55°C to 125°C. The part is currently active in production with 1075 units available in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. This reference provides engineering data for component selection and procurement decisions.

Key Parameters

Parameter	Value	Unit
Inductance	22	µH
Inductance Tolerance	±10%	—
Current Rating	16.3	A
DC Resistance (Max)	9	mOhm
Saturation Current	28	A
Core Material	Ferrite	—
Shielding	Unshielded	—
Mounting Type	Through Hole	—
Package Type	Radial, Vertical Cylinder	—
Operating Temperature Range	-55°C to 125°C	—
Inductance Test Frequency	1	kHz

Substitute Part Grouping Explanation

Substitute parts for the DC1390-223K are identified based on the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Inductance value: 22 µH at 1 kHz test frequency
Inductance tolerance: ±10%
DC resistance: 9 mOhm maximum
Current rating: minimum 16.2 A (within 1% of primary part)
Core material: Ferrite
Shielding configuration: Unshielded

Mechanical Compatibility Criteria:

Mounting type: Through hole
Package configuration: Radial orientation
Physical dimensions: compatible with standard PCB footprints

The substitute part 1140-220K-RC meets these criteria with equivalent inductance, matching DC resistance specification, and compatible through-hole radial mounting. Dimensional variations remain within acceptable tolerances for standard PCB assembly processes.

Parameter Comparison

Parameter	DC1390-223K (API Delevan)	1140-220K-RC (Bourns)	Match Status
Inductance	22 µH	22 µH	Equivalent
Inductance Tolerance	±10%	±10%	Equivalent
Current Rating	16.3 A	16.2 A	Equivalent
DC Resistance (Max)	9 mOhm	9 mOhm	Equivalent
Saturation Current	28 A	43.7 A	Substitute exceeds specification
Core Material	Ferrite	Ferrite	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Package Type	Radial, Vertical Cylinder	Radial	Compatible
Operating Temperature Range	-55°C to 125°C	-55°C to 105°C	Substitute has narrower range
Inductance Test Frequency	1 kHz	1 kHz	Equivalent
Diameter	1.480" (37.60 mm)	1.500" (38.10 mm)	Within tolerance
Height (Seated Max)	1.064" (27.03 mm)	1.030" (26.16 mm)	Within tolerance

Engineering Selection Recommendations

Primary Part Status: The DC1390-223K is an active production component with established supply availability (1075 units in stock). This part is RoHS non-compliant and carries REACH Unaffected status.

Substitute Part Status: The 1140-220K-RC is an active production component from Bourns Inc. with 850 units in stock. This substitute is ROHS3 compliant, providing regulatory advantage in applications requiring RoHS certification.

Selection Basis:

For applications requiring RoHS3 compliance, the 1140-220K-RC provides equivalent electrical performance with improved regulatory status. The substitute maintains all critical electrical parameters: 22 µH inductance, 9 mOhm DC resistance, and 16.2 A current rating.

For applications operating at maximum temperature limits above 105°C, the DC1390-223K is required due to its extended operating range to 125°C. The 1140-220K-RC is limited to 105°C maximum.

Both parts are suitable for standard through-hole PCB assembly with radial mounting orientation. Physical dimensions are compatible within manufacturing tolerances.

Frequently Asked Questions (FAQ)

Q: Can the 1140-220K-RC directly replace the DC1390-223K in all applications?

A: The 1140-220K-RC provides electrical equivalence for inductance, current rating, and DC resistance. However, applications requiring operation above 105°C must use the DC1390-223K due to its extended temperature range to 125°C. RoHS compliance requirements should also be evaluated for your specific application.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution is based on: inductance value (22 µH ±10%), DC resistance (9 mOhm maximum), current rating (minimum 16.2 A), core material (ferrite), and shielding configuration (unshielded). All these parameters must match within specified tolerances.

Q: Are there dimensional differences between these parts?

A: Yes. The DC1390-223K has a diameter of 1.480" (37.60 mm) and height of 1.064" (27.03 mm). The 1140-220K-RC has a diameter of 1.500" (38.10 mm) and height of 1.030" (26.16 mm). These differences are within standard PCB assembly tolerances for radial through-hole components.

Q: What is the difference in saturation current between these parts?

A: The DC1390-223K has a saturation current of 28 A, while the 1140-220K-RC has a saturation current of 43.7 A. The substitute part provides higher saturation margin. Both exceed the rated current of approximately 16 A.

Q: Which part should I select for new designs?

A: Selection depends on regulatory and thermal requirements. For RoHS3-compliant applications with operating temperatures up to 105°C, use the 1140-220K-RC. For applications requiring operation to 125°C or where RoHS non-compliance is acceptable, use the DC1390-223K.

Q: Are both parts available in the same packaging format?

A: Both parts use through-hole radial mounting with bulk packaging. The DC1390-223K uses a vertical cylinder package configuration, while the 1140-220K-RC uses a radial drum core configuration. Both are compatible with standard PCB footprints for radial inductors.

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