DC1050R-334K Equivalent & Substitute Parts

Part Overview

The DC1050R-334K is a 330 µH fixed unshielded inductor manufactured by API Delevan Inc., rated for 4 A continuous current with a maximum DC resistance of 122 mOhm. This component is in Active product status and fully complies with RoHS3 and REACH requirements. Alternative equivalent parts become necessary when the primary part experiences extended lead times, inventory constraints, or when system design flexibility permits the use of functionally compatible devices from other manufacturers.

Substiute Parts

DC1050R-334K

API Delevan Inc.In Stock: 989DC1050R-334K Datasheet

Current PartRFQ

1130-331K-RC

Bourns Inc.In Stock: 13701130-331K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the DC1050R-334K is determined by strict adherence to the following critical electrical and mechanical parameters:

Electrical Parameters:

• Inductance value of 330 µH at ±10% tolerance
• DC resistance maximum of 122 mOhm
• Current rating of 4 A or greater
• Unshielded configuration
• Test frequency at 1 kHz

Mechanical Parameters:

• Through-hole mounting type
• Radial package orientation with maximum height of 0.840" (21.34 mm)
• Physical footprint compatibility with radial form factor

The substitute part 1130-331K-RC from Bourns Inc. meets all mandatory electrical and mechanical criteria, enabling direct functional substitution within this application category.

Parameter Comparison

Engineering Selection Recommendations

Both the DC1050R-334K and 1130-331K-RC are Active status components with full RoHS3 and REACH compliance. The 1130-331K-RC offers a higher current rating of 4.5 A compared to 4 A on the primary part, supporting applications with greater current margin. The DC1050R-334K operates to 125°C maximum temperature, while the 1130-331K-RC operates to 105°C. Selection between these devices is based on specific thermal and current requirements within the application circuit. Both parts feature identical inductance value, DC resistance, and mounting height, ensuring mechanical compatibility within standard PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the 1130-331K-RC be used as a direct replacement for DC1050R-334K?

A: Yes. The 1130-331K-RC meets all critical electrical specifications including 330 µH inductance, 122 mOhm maximum DC resistance, and unshielded configuration. Both parts share identical mounting height of 0.840" and through-hole radial mounting. Physical footprint is compatible within standard circuit board spacing.

Q: What are the differences in current rating between these parts?

A: The DC1050R-334K is rated for 4 A continuous current, while the 1130-331K-RC is rated for 4.5 A. The higher current rating of the Bourns device provides increased current margin without affecting inductance or DC resistance specifications.

Q: Are there temperature range differences that affect selection?

A: Yes. The DC1050R-334K operates from -55°C to 125°C, while the 1130-331K-RC operates from -55°C to 105°C. Applications requiring operation above 105°C require the primary DC1050R-334K part.

Q: Do both parts meet regulatory compliance requirements?

A: Both parts are RoHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and are suitable for applications with these regulatory requirements.

Q: Are there physical size differences that require PCB layout consideration?

A: The DC1050R-334K has a diameter of 1.180" (29.98 mm), while the 1130-331K-RC has a diameter of 1.100" (27.94 mm). Both share the same maximum seated height of 0.840" (21.34 mm). The substitute part is physically smaller in diameter, requiring verification of PCB hole spacing and clearance within the target application.