RN242-2-02 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The RN242-2-02 is a 6.8 mH, 2-line common mode choke manufactured by Schaffner EMC Inc., designed for power line filtering applications in through-hole mounting configurations. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The RN242-2-02 operates at 2A typical current with 190mOhm DC resistance and is rated for 250V AC operation across an operating temperature range of -40°C to 125°C.

Substiute Parts

RN242-2-02

Schaffner EMC Inc.In Stock: 1118RN242-2-02 Datasheet

Current PartRFQ

RN242-2-02-6M8

Schaffner EMC Inc.In Stock: 1659RN242-2-02-6M8 Datasheet

DirectRFQ

B82724J2202N001

EPCOS - TDK ElectronicsIn Stock: 2158B82724J2202N001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RN242-2-02 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 6.8 mH (measured at specified frequency)
• Number of lines: 2-line configuration
• Current rating: 2A or greater
• Mounting type: Through hole
• Package configuration: Vertical, 4 PC pin
• DC resistance: Within acceptable operating range for power line filtering
• Voltage rating: Minimum 250V AC
• Operating temperature range: Minimum -40°C to 100°C

Substitute Categories:

Direct Manufacturer Substitute: RN242-2-02-6M8 is manufactured by the same supplier (Schaffner EMC Inc.) within the same RN series. This part maintains identical mechanical dimensions and electrical specifications with the exception of inductance measurement frequency (10 kHz vs. 1 kHz) and slightly elevated AC voltage rating (300V vs. 250V). Product status is active.

Similar Manufacturer Substitute: B82724J2202N001 is manufactured by EPCOS - TDK Electronics and meets all critical electrical parameters. Mechanical dimensions show minor variations within acceptable tolerances for through-hole mounting. DC resistance is lower (170mOhm vs. 190mOhm), providing improved thermal performance. Product status is active.

Parameter Comparison

Engineering Selection Recommendations

RN242-2-02-6M8 (Direct Manufacturer Substitute): This part is the preferred substitute for the obsolete RN242-2-02. It is manufactured by Schaffner EMC Inc. within the same product series and maintains identical mechanical dimensions and mounting characteristics. The part carries active product status with enhanced compliance certifications (ENEC, UR, VDE). The inductance measurement frequency differs (10 kHz vs. 1 kHz), and AC voltage rating is elevated to 300V, providing additional design margin. DC resistance remains within 2mOhm of the original specification. Operating temperature range is reduced to -40°C to 100°C; applications requiring operation above 100°C should be evaluated against specific thermal requirements.

B82724J2202N001 (Similar Manufacturer Substitute): This EPCOS - TDK Electronics part meets all critical electrical parameters and maintains the full operating temperature range (-40°C to 125°C) of the original part. Mechanical dimensions show minor variations (approximately 0.3% length and width increase, 3.9% height reduction), which remain compatible with standard through-hole PCB layouts. DC resistance is 20mOhm lower than the original specification, resulting in reduced power dissipation. This part carries active product status with ENEC, UR, and VDE certifications. REACH status is affected, requiring compliance verification for applications subject to REACH regulations.

Frequently Asked Questions (FAQ)

Q: Can RN242-2-02-6M8 be used as a direct replacement for RN242-2-02?

A: Yes. Both parts are manufactured by Schaffner EMC Inc., share identical mechanical dimensions, and maintain the same 6.8 mH inductance value and 2A current rating. The primary differences are inductance measurement frequency (10 kHz vs. 1 kHz), elevated AC voltage rating (300V vs. 250V), and reduced maximum operating temperature (100°C vs. 125°C). For applications operating below 100°C, this part is a direct substitute.

Q: What are the mechanical compatibility considerations for B82724J2202N001?

A: The B82724J2202N001 has slightly larger length and width dimensions (31.30mm x 18.50mm vs. 31.00mm x 18.00mm) and reduced height (33.20mm vs. 34.60mm). These variations are within standard PCB layout tolerances for through-hole components. Verify PCB footprint clearances, particularly for height-constrained applications.

Q: How do DC resistance differences affect circuit performance?

A: The RN242-2-02-6M8 has 192mOhm DCR (2mOhm higher than original), while B82724J2202N001 has 170mOhm DCR (20mOhm lower). Lower DCR reduces power dissipation and heat generation. Higher DCR increases power loss proportionally to I²R. For 2A operation, the difference between 190mOhm and 170mOhm represents approximately 0.08W additional dissipation in the original part. Select based on thermal budget requirements.

Q: Are both substitute parts RoHS compliant?

A: Yes. RN242-2-02-6M8 is ROHS3 compliant. B82724J2202N001 is ROHS3 compliant. Both meet current RoHS requirements for new designs.

Q: What certifications should I verify for regulatory compliance?

A: The original RN242-2-02 carries UR and VDE approvals. RN242-2-02-6M8 carries ENEC, UR, and VDE approvals. B82724J2202N001 carries ENEC, UR, and VDE approvals. Verify that selected substitute certifications meet application-specific regulatory requirements (IEC, UL, CE marking, etc.).

Q: Does operating temperature range affect part selection?

A: The RN242-2-02 and B82724J2202N001 both support -40°C to 125°C operation. RN242-2-02-6M8 supports -40°C to 100°C. For applications requiring operation above 100°C, use RN242-2-02 or B82724J2202N001.

Q: What is the significance of REACH status differences?

A: RN242-2-02 and RN242-2-02-6M8 are REACH unaffected. B82724J2202N001 is REACH affected, requiring compliance verification for applications subject to REACH regulations. Consult supplier documentation for substance of very high concern (SVHC) declarations if REACH compliance is required.