DKIL-0346-1002 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The DKIL-0346-1002 is a 3-line common mode choke (CMC) manufactured by SCHURTER Inc., rated for 10A maximum current with 15mOhm DC resistance. This through-hole component is designed for power line filtering applications in three-phase systems. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing procurement and system maintenance. Active alternatives from both SCHURTER Inc. and Schaffner EMC Inc. are available to support continued production and field replacement requirements.

Substiute Parts

DKIL-0346-1002

SCHURTER Inc.In Stock: 1035DKIL-0346-1002 Datasheet

Current PartRFQ

DKIH-3352-102J

SCHURTER Inc.In Stock: 831DKIH-3352-102J Datasheet

SimilarRFQ

RD5132-10-3M0

Schaffner EMC Inc.In Stock: 1891RD5132-10-3M0 Datasheet

SimilarRFQ

RD8137-25-2M5

Schaffner EMC Inc.In Stock: 1101RD8137-25-2M5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DKIL-0346-1002 is determined by the following critical parameters:

• Number of Lines: Must be 3 (three-phase common mode filtering)
• Current Rating: Must support minimum 10A operation
• Mounting Type: Must be through-hole configuration
• Voltage Ratings: Must meet or exceed DC 760V and AC 540V requirements
• DC Resistance: Lower values are acceptable; higher values require evaluation against thermal and loss specifications
• Operating Temperature: Must support the -25°C to 100°C range or broader
• RoHS Compliance: ROHS3 compliance required for regulatory alignment

Three substitute parts meet these criteria with varying performance characteristics and dimensional footprints.

Parameter Comparison

Engineering Selection Recommendations

DKIH-3352-102J (SCHURTER Inc.) is the primary substitute for direct replacement applications. This part maintains the same manufacturer lineage, supports identical 10A current rating, and offers improved DC resistance (7.5mOhm versus 15mOhm). The active product status ensures long-term availability. AC voltage rating increases to 600V, exceeding the original 540V specification. Operating temperature range extends to -40°C, providing broader environmental coverage. Dimensional differences (53.00mm diameter versus 50.00mm square) require PCB layout verification for mechanical fit.

RD5132-10-3M0 (Schaffner EMC Inc.) provides an alternative from a different manufacturer while maintaining identical current rating and footprint dimensions (50.00mm x 50.00mm). DC resistance is slightly higher at 17.6mOhm (typical), and voltage ratings increase to 600V AC and 850V DC. This part is suitable for applications where footprint compatibility is critical and manufacturer diversification is acceptable. Active product status supports procurement continuity.

RD8137-25-2M5 (Schaffner EMC Inc.) is applicable only when the circuit design permits higher current capacity (25A typical). This part offers the lowest DC resistance (6.4mOhm typical) and highest voltage ratings (850V DC, 600V AC). The significantly larger footprint (80.00mm x 80.00mm) requires substantial PCB layout modifications and is suitable only for applications with available board space and no current constraints limiting to 10A.

All three substitutes maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can DKIH-3352-102J be used as a direct drop-in replacement for DKIL-0346-1002?

A: DKIH-3352-102J meets all electrical specifications and current ratings. However, the dimensional change from 50.00mm square to 53.00mm diameter requires PCB layout verification. The 6-pin radial configuration remains compatible with through-hole mounting. Mechanical fit must be confirmed before implementation.

Q: What is the primary difference between the SCHURTER and Schaffner substitute options?

A: DKIH-3352-102J maintains SCHURTER manufacturing with improved DC resistance and extended temperature range. RD5132-10-3M0 and RD8137-25-2M5 are Schaffner products offering higher voltage ratings and different inductance characteristics. Selection depends on manufacturer preference, footprint constraints, and voltage/current requirements.

Q: Is RD8137-25-2M5 suitable for 10A applications?

A: RD8137-25-2M5 is rated for 25A (typical) and can operate at 10A. However, the significantly larger footprint (80.00mm x 80.00mm) and higher cost make it unnecessary for 10A-only designs. Use this part only when circuit requirements exceed 10A or when the larger form factor is acceptable.

Q: Do all substitute parts support the original operating temperature range of -25°C to 100°C?

A: Yes. DKIH-3352-102J extends the range to -40°C to 100°C. RD5132-10-3M0 and RD8137-25-2M5 both support -25°C to 110°C, exceeding the original specification.

Q: Are there DC voltage rating differences I should consider?

A: The original DKIL-0346-1002 specifies 760V DC. DKIH-3352-102J does not specify DC voltage. RD5132-10-3M0 and RD8137-25-2M5 both support 850V DC, exceeding the original requirement. Verify DC voltage requirements in your application before selection.

Q: What packaging formats are available for these substitutes?

A: DKIL-0346-1002 is packaged in standard format. DKIH-3352-102J uses Box packaging. RD5132-10-3M0 and RD8137-25-2M5 are supplied in Tray packaging. Confirm packaging compatibility with your procurement and assembly processes.