DFK-33-0001 Equivalent & Substitute Parts

Part Overview

The DFK-33-0001 is a 2-line common mode choke (CMC) designed for through-hole mounting applications. This component provides electromagnetic interference (EMI) filtering for two-conductor circuits with a maximum current rating of 2A and a DC resistance of 250mOhm. The part is currently active in production status with ROHS3 compliance and REACH unaffected classification. Substitute parts may be required due to inventory availability, lead time constraints, or specific application space limitations where alternative package dimensions are acceptable.

Substiute Parts

DFK-33-0001

SCHURTER Inc.In Stock: 980DFK-33-0001 Datasheet

Current PartRFQ

DFK-25-0002

SCHURTER Inc.In Stock: 994DFK-25-0002 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The DFK-25-0002 qualifies as a parametric equivalent to the DFK-33-0001 based on the following matching electrical and mechanical criteria:

Matching Parameters:

• Number of Lines: 2
• Current Rating (Max): 2A
• DC Resistance (DCR) (Max): 250mOhm
• Operating Temperature Range: -25°C ~ 100°C
• Mounting Type: Through Hole
• Series: DFK
• Product Status: Active
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Differing Parameter:

• Size / Dimension: 0.984" L x 0.984" W (25.00mm x 25.00mm) versus 1.299" L x 1.299" W (33.00mm x 33.00mm)

The DFK-25-0002 maintains identical electrical performance specifications and compliance certifications. The primary distinction is the reduced package footprint, which may be advantageous in space-constrained applications while maintaining full functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the DFK-33-0001 and DFK-25-0002 are active production components manufactured by SCHURTER Inc. and carry identical ROHS3 compliance and REACH unaffected certifications. Selection between these parts should be based on printed circuit board layout requirements and available mounting space. The DFK-25-0002 provides a more compact footprint while maintaining all specified electrical performance parameters. Both parts are suitable for applications requiring 2-line common mode filtering at 2A current capacity with 250mOhm DC resistance.

Frequently Asked Questions (FAQ)

Q: Can the DFK-25-0002 be used as a direct replacement for the DFK-33-0001?

A: Yes, the DFK-25-0002 is electrically equivalent. The primary consideration is physical package size. The DFK-25-0002 measures 25.00mm x 25.00mm compared to the DFK-33-0001 at 33.00mm x 33.00mm. Verify that your PCB layout accommodates the smaller footprint before substitution.

Q: Are there any compliance differences between these parts?

A: No. Both parts carry identical RoHS3 compliance and REACH unaffected status, making them suitable for the same regulatory environments.

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

A: Substitution is based on matching: number of lines (2), current rating (2A maximum), DC resistance (250mOhm maximum), operating temperature range (-25°C to 100°C), and mounting type (through hole). Both parts meet these criteria.

Q: Does the smaller package size affect performance?

A: No. The DFK-25-0002 maintains identical electrical specifications including current rating, DC resistance, and temperature operating range as the DFK-33-0001.

Q: Are both parts currently available?

A: Yes. The DFK-33-0001 has 902 pieces in stock, and the DFK-25-0002 has 966 pieces in stock as new original inventory.