DC1050R-395K Equivalent & Substitute Parts

Part Overview

The DC1050R-395K is a fixed unshielded inductor manufactured by API Delevan Inc., rated at 3.9 mH inductance with 1 A current capacity and 1.86 Ohm maximum DC resistance. This component is designed for through-hole radial mounting in vertical cylinder configuration. The part maintains Active product status with full RoHS3 compliance and operates across the temperature range of -55°C to 125°C.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining mechanical compatibility and compliance certifications. The DC1050R-395K has one qualified substitute that meets these criteria.

Substiute Parts

DC1050R-395K

API Delevan Inc.In Stock: 1060DC1050R-395K Datasheet

Current PartRFQ

1130-392K-RC

Bourns Inc.In Stock: 16691130-392K-RC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DC1050R-395K is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value must be 3.9 mH within ±10% tolerance
• Current rating must be rated for minimum 1 A
• DC resistance must not exceed 1.86 Ohm maximum
• Unshielded configuration required for electromagnetic compatibility

Mechanical Compatibility Criteria:

• Through-hole mounting type required
• Radial package configuration required
• Physical dimensions must accommodate standard PCB hole spacing

Compliance Requirements:

• RoHS3 compliance mandatory
• REACH Unaffected status required
• Operating temperature range must encompass -55°C to 125°C or be compatible with application requirements

The substitute part 1130-392K-RC from Bourns Inc. meets all electrical and mechanical criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: DC1050R-395K

The DC1050R-395K is recommended as the primary selection when the full operating temperature range of -55°C to 125°C is required. This part maintains Active product status with established supply availability (985 pcs in stock) and meets all regulatory requirements including RoHS3 compliance and REACH Unaffected status.

Substitute Part: 1130-392K-RC

The 1130-392K-RC from Bourns Inc. is a qualified substitute when the operating temperature requirement does not exceed 105°C. This substitute provides electrical equivalence with identical inductance and current rating specifications. The DC resistance of 1.67 Ohm maximum is lower than the primary part specification, resulting in reduced power dissipation. The physical diameter is 0.080" (2.04 mm) smaller, which may provide layout advantages in space-constrained applications while maintaining the same seated height. Supply availability is higher (1641 pcs in stock). Both parts maintain Active product status and full compliance certifications.

Selection Criteria:

• Use DC1050R-395K when operating temperature must reach 125°C
• Use 1130-392K-RC when maximum operating temperature is 105°C or lower and reduced DCR is beneficial
• Both parts are suitable for standard through-hole PCB assembly processes
• Both parts maintain equivalent electrical performance within specified tolerances

Frequently Asked Questions (FAQ)

Q: Can the 1130-392K-RC replace the DC1050R-395K in all applications?

A: The 1130-392K-RC is a qualified substitute for applications where the maximum operating temperature does not exceed 105°C. The DC1050R-395K operates to 125°C. If your application requires operation at temperatures between 105°C and 125°C, the DC1050R-395K must be used.

Q: What is the difference in DC resistance between these parts?

A: The DC1050R-395K has a maximum DC resistance of 1.86 Ohm, while the 1130-392K-RC has a maximum of 1.67 Ohm. The substitute part has lower resistance, which reduces power dissipation and heat generation in the inductor.

Q: Are the physical dimensions compatible with the same PCB footprint?

A: Both parts have identical seated height of 0.840" (21.34 mm). The 1130-392K-RC has a slightly smaller diameter of 1.100" compared to 1.180" for the DC1050R-395K. Both use radial through-hole mounting. Verify that your PCB layout accommodates the smaller diameter of the substitute if space is critical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the DC1050R-395K and 1130-392K-RC are RoHS3 compliant and REACH Unaffected. Both carry EAR99 ECCN classification.

Q: What is the inductance tolerance for both parts?

A: Both parts have ±10% inductance tolerance at 1 kHz test frequency. This means the actual inductance value will fall within the range of 3.51 mH to 4.29 mH for either part.

Q: Can I use these parts interchangeably in production?

A: These parts are electrically equivalent within specified tolerances and mechanically compatible for through-hole assembly. However, verify your application's temperature requirements before selecting between them. If your design operates only at temperatures up to 105°C, either part is suitable. If operation above 105°C is required, use only the DC1050R-395K.