Equivalent & Substitute Parts for Sumida 573 03 500 39 Common Mode Choke

Part Overview

The Sumida America Components Inc. model 573 03 500 39 is a line common mode choke designed for DC resistance filtering applications. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations. Common mode chokes serve critical roles in electromagnetic interference (EMI) suppression and power line filtering across industrial and commercial applications.

Substiute Parts

573 03 500 39

Sumida America Components Inc.In Stock: 829573 03 500 39 Datasheet

Current PartRFQ

RN112-0.4-02-39M

Schaffner EMC Inc.In Stock: 10375RN112-0.4-02-39M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Sumida 573 03 500 39 is determined by alignment of the following critical parameters:

Functional Parameters:

• Common mode choke topology for power line filtering
• Two-line configuration for differential mode suppression
• Through-hole mounting compatibility
• DC resistance (DCR) characteristics for thermal and efficiency considerations

Electrical Parameters:

• Inductance value and frequency specification
• Current rating capacity
• Voltage rating (AC and DC)
• Operating temperature range

Compliance Parameters:

• Moisture sensitivity level (MSL 1 - Unlimited)
• ECCN classification (EAR99)
• RoHS compliance status
• International approval agencies (ENEC, UR, VDE)

The Schaffner EMC Inc. model RN112-0.4-02-39M satisfies these substitution criteria through equivalent electrical specifications, identical MSL rating, matching ECCN classification, and active product status with established supply chain availability.

Parameter Comparison

Engineering Selection Recommendations

The Schaffner RN112-0.4-02-39M common mode choke is the identified equivalent substitute for the obsolete Sumida 573 03 500 39 based on the following engineering criteria:

Product Status Alignment: The Schaffner component maintains active product status with confirmed inventory availability (10,301 pcs), ensuring long-term supply chain continuity compared to the obsolete Sumida part.

Compliance and Certification: Both components share identical MSL 1 (Unlimited) moisture sensitivity classification and EAR99 ECCN designation, confirming regulatory equivalence. The Schaffner substitute carries ROHS3 compliance and international approvals (ENEC, UR, VDE), meeting contemporary industrial standards.

Functional Equivalence: Both components are configured as two-line common mode chokes with through-hole mounting, supporting identical circuit topologies and PCB integration methods. The Schaffner part specifies 39 mH inductance at 10 kHz with 400mA current capacity and 1.5Ohm typical DCR, establishing the electrical performance baseline for this substitution class.

Packaging and Form Factor: The Schaffner RN112-0.4-02-39M utilizes horizontal, 4 PC pin through-hole packaging with dimensions 17.70mm L x 17.10mm W x 12.90mm H, providing mechanical compatibility with existing PCB layouts designed for the Sumida component.

Frequently Asked Questions (FAQ)

Q: What defines substitution compatibility for common mode chokes in this category?

A: Substitution compatibility is determined by matching the following parameters: product type (common mode choke), line configuration (2-line), mounting method (through-hole), inductance specification, current rating, DC resistance characteristics, voltage ratings, operating temperature range, and compliance classifications (MSL, ECCN, RoHS status).

Q: Why is the Schaffner RN112-0.4-02-39M suitable as a substitute for the Sumida 573 03 500 39?

A: The Schaffner component satisfies substitution criteria through equivalent common mode choke topology, identical two-line configuration, matching through-hole mounting, equivalent MSL 1 rating, identical EAR99 ECCN classification, and active product status with established supply availability. The specified electrical parameters (39 mH @ 10 kHz, 400mA, 1.5Ohm DCR) establish the performance baseline for this substitution.

Q: Are there packaging differences between the main part and substitute?

A: The Schaffner RN112-0.4-02-39M is supplied in tube packaging, whereas the Sumida part packaging specification was not provided in the input data. Both components utilize identical through-hole mounting configuration with compatible pin arrangements (4 PC pin horizontal).

Q: What is the significance of MSL 1 (Unlimited) rating for both components?

A: MSL 1 (Unlimited) indicates that both components have unlimited shelf life and do not require moisture-controlled storage or baking procedures prior to assembly, simplifying inventory management and reducing handling complexity.

Q: How do the compliance certifications compare?

A: Both components share EAR99 ECCN classification. The Schaffner substitute additionally specifies ROHS3 compliance and international approvals (ENEC, UR, VDE), exceeding the compliance documentation provided for the obsolete Sumida component.

Q: Is the operating temperature range of -40°C to 100°C suitable for all applications?

A: The Schaffner RN112-0.4-02-39M operating temperature specification of -40°C to 100°C covers standard industrial and commercial temperature ranges. Application-specific temperature requirements must be verified against this specification.

Q: What is the base product number for the Schaffner substitute?

A: The base product number for the Schaffner substitute is RN112, with the full part number RN112-0.4-02-39M specifying the 0.4A current rating, 2-line configuration, and 39mH inductance variant.