RN242-6-02 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The RN242-6-02 is a 1.8 mH common mode choke designed for two-line power line filtering applications. Manufactured by Schaffner EMC Inc., this through-hole component is rated for 6A typical current with 20mOhm DC resistance and operates across -40°C to 125°C. The part carries obsolete product status, making identification of suitable substitutes essential for ongoing system support and procurement.

Substiute Parts

RN242-6-02

Schaffner EMC Inc.In Stock: 695RN242-6-02 Datasheet

Current PartRFQ

RN242-6-02-1M8

Schaffner EMC Inc.In Stock: 3522RN242-6-02-1M8 Datasheet

DirectRFQ

B82725A2103N001

EPCOS - TDK ElectronicsIn Stock: 1446B82725A2103N001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN242-6-02 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1.8 mH @ 10 kHz
• Number of lines: 2-line configuration
• Mounting type: Through Hole
• Filter type: Power Line
• Package configuration: 4 PC Pin

Secondary Compatibility Factors:

• Current rating must meet or exceed 6A
• DC resistance should not significantly exceed 20mOhm to maintain filtering performance
• AC voltage rating must be at least 250V
• Operating temperature range must encompass -40°C to 125°C or be compatible with application requirements
• Approval agencies (UR, VDE) certification required

Two substitute parts meet these criteria with varying degrees of parameter alignment.

Parameter Comparison

Engineering Selection Recommendations

RN242-6-02-1M8 (Direct Substitute - Preferred)

This part is the primary substitute for the obsolete RN242-6-02. Manufactured by the same supplier (Schaffner EMC Inc.), it maintains identical electrical specifications: 1.8 mH inductance, 6A current rating, 20mOhm DCR, and vertical 4 PC Pin configuration. The part carries Active product status with expanded certifications (ENEC, UR, VDE) and ROHS3 compliance. The AC voltage rating increases to 300V, providing enhanced margin. The operating temperature range is -40°C to 100°C, which is 25°C narrower at the upper limit compared to the original part. This substitution is direct for applications operating within this temperature window.

B82725A2103N001 (Alternative Substitute - Conditional)

This EPCOS - TDK Electronics part maintains the same 1.8 mH inductance and 2-line configuration with Active product status and full certifications (ENEC, UR, VDE). It offers superior electrical performance with 10A current rating and lower 14mOhm DCR. The operating temperature range matches the original (-40°C to 125°C). However, the package configuration differs: horizontal orientation versus vertical, and physical dimensions are larger (44.00mm x 42.40mm x 25.00mm versus 31.00mm x 18.00mm x 34.60mm). This substitution requires verification of PCB layout compatibility and mounting space availability.

Frequently Asked Questions (FAQ)

Q: Can RN242-6-02-1M8 be used as a direct replacement for RN242-6-02?

A: Yes, for applications operating within -40°C to 100°C. Both parts share identical inductance (1.8 mH @ 10 kHz), current rating (6A), DC resistance (20mOhm), and package configuration (Vertical, 4 PC Pin). The substitute carries Active status with enhanced certifications and higher AC voltage rating (300V versus 250V).

Q: What are the limitations of using B82725A2103N001?

A: The B82725A2103N001 differs in package orientation (horizontal versus vertical) and physical dimensions. PCB layout and mounting space must accommodate the larger footprint (44.00mm x 42.40mm versus 31.00mm x 18.00mm). Mechanical integration verification is required before implementation.

Q: Does the higher current rating of B82725A2103N001 affect compatibility?

A: No. A higher current rating (10A versus 6A) is compatible with applications designed for 6A operation. The lower DC resistance (14mOhm versus 20mOhm) provides improved performance characteristics.

Q: Are there temperature range considerations for substitution?

A: RN242-6-02-1M8 operates to 100°C maximum, while the original and B82725A2103N001 operate to 125°C. Applications requiring operation above 100°C must use B82725A2103N001, subject to package compatibility verification.

Q: What certifications apply to substitute parts?

A: RN242-6-02-1M8 carries ENEC, UR, and VDE certifications with ROHS3 compliance. B82725A2103N001 carries identical certifications (ENEC, UR, VDE) with ROHS3 compliance. Both meet the original part's UR and VDE requirements.

Q: How do packaging differences affect procurement?

A: RN242-6-02-1M8 is supplied in Tube packaging; B82725A2103N001 is supplied in Tray packaging. Inventory availability differs: RN242-6-02-1M8 has 3431 pcs in stock; B82725A2103N001 has 1380 pcs in stock. Packaging format may influence order quantities and handling procedures.