DFKF-18-0005 Equivalent & Substitute Parts

Part Overview

The DFKF-18-0005 is a 2-line common mode choke (CMC) designed for through-hole mounting applications. Manufactured by SCHURTER Inc., this component is rated for 2A maximum current with a DC resistance of 60mOhm and operates across a temperature range of -25°C to 100°C. The part maintains Active product status and is ROHS3 compliant, making it suitable for modern electronic filtering applications requiring EMI suppression in two-line configurations.

Equivalent substitute parts may be required due to inventory constraints, design revisions, or procurement optimization while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

DFKF-18-0005

SCHURTER Inc.In Stock: 882DFKF-18-0005 Datasheet

Current PartRFQ

DFKH-14-0003

SCHURTER Inc.In Stock: 1121DFKH-14-0003 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DFKF-18-0005 is determined by the following critical parameters:

• Number of Lines: Must equal 2
• Current Rating (Max): Must equal or exceed 2A
• Mounting Type: Must be Through Hole
• Package / Case: Must be Radial - 4 Leads
• Voltage Rating - AC: Must equal or exceed 440V
• Operating Temperature Range: Must encompass -25°C ~ 100°C
• RoHS Status: Must maintain ROHS3 compliance

The DFKH-14-0003 qualifies as a parametric equivalent substitute. While the DC Resistance (DCR) specification differs slightly (65mOhm versus 60mOhm), all critical electrical and mechanical parameters remain within acceptable substitution criteria. The physical dimensions are reduced, but the radial 4-lead package configuration and through-hole mounting remain identical.

Parameter Comparison

Engineering Selection Recommendations

Both the DFKF-18-0005 and DFKH-14-0003 maintain Active product status from SCHURTER Inc. and satisfy ROHS3 compliance requirements. Selection between these parts should be based on:

DFKF-18-0005: Primary selection when original specification dimensions (18.20mm x 17.80mm) are required or when the lower DCR specification (60mOhm) is critical to circuit performance.

DFKH-14-0003: Suitable substitute when board space constraints favor the smaller footprint (15.00mm x 10.50mm) and the marginal increase in DCR (65mOhm maximum) is acceptable within circuit design tolerances. Both parts support identical current ratings, voltage specifications, and temperature operating ranges.

Frequently Asked Questions (FAQ)

Q: Can DFKH-14-0003 replace DFKF-18-0005 in existing designs?

A: Yes, provided the reduced physical dimensions (15.00mm x 10.50mm versus 18.20mm x 17.80mm) accommodate PCB layout requirements and the increased DCR specification (65mOhm versus 60mOhm) remains within acceptable circuit performance parameters.

Q: Are the lead configurations identical between these parts?

A: Yes. Both parts use Radial - 4 Leads package configuration and through-hole mounting, ensuring identical lead spacing and PCB hole compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both DFKF-18-0005 and DFKH-14-0003 are ROHS3 compliant and maintain Active product status.

Q: What is the significance of the DCR difference?

A: The DC Resistance difference (60mOhm versus 65mOhm) represents a 5mOhm increase. This parameter affects power dissipation and insertion loss characteristics. Verify that circuit design tolerances accommodate this variance before substitution.

Q: Are temperature operating ranges equivalent?

A: Yes. Both parts operate across -25°C to 100°C, ensuring identical thermal performance specifications.