RN114-1-02 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The RN114-1-02 is a 2-line common mode choke (CMC) designed for power line filtering applications. Manufactured by Schaffner EMC Inc., this through-hole component provides 15 mH inductance at 1 kHz with a 1A typical current rating and 375 mOhm DC resistance. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement continuity. The RN114-1-02-15M serves as a direct manufacturer substitute, offering improved product status and enhanced compliance certifications while maintaining core electrical and mechanical compatibility.

Substiute Parts

RN114-1-02

Schaffner EMC Inc.In Stock: 778RN114-1-02 Datasheet

Current PartRFQ

RN114-1-02-15M

Schaffner EMC Inc.In Stock: 2126RN114-1-02-15M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RN114-1-02-15M qualifies as a direct substitute based on the following substitution criteria:

Electrical Compatibility:

• Inductance value: 15 mH (maintained at different measurement frequency: 10 kHz vs. 1 kHz)
• Current rating: 1A (equivalent)
• DC resistance: 370 mOhm (5 mOhm reduction, within acceptable tolerance)
• Voltage rating - AC: 300V (higher rating, backward compatible)
• Number of lines: 2 (identical)

Mechanical Compatibility:

• Mounting type: Through Hole (identical)
• Physical dimensions: 0.886" L x 0.846" W x 0.531" H (identical)
• Package / Case: Horizontal, 4 PC Pin (identical)

Compliance & Status:

• RoHS Status: ROHS3 Compliant (upgraded from RoHS Compliant)
• Approval Agency: ENEC, UR, VDE (expanded certifications)
• Product Status: Active (vs. Obsolete)

Parameter Comparison

Engineering Selection Recommendations

The RN114-1-02-15M is the direct manufacturer substitute for the obsolete RN114-1-02. Selection of the RN114-1-02-15M is supported by:

Product Status: The RN114-1-02-15M maintains Active product status, ensuring long-term availability and manufacturing support compared to the Obsolete RN114-1-02.

Compliance Certifications: The RN114-1-02-15M carries expanded regulatory approvals (ENEC, UR, VDE) and upgraded RoHS3 compliance, meeting current environmental and safety standards.

Electrical Parameters: Core electrical specifications remain equivalent. The 15 mH inductance value is maintained, current rating and DC resistance are within acceptable tolerance, and the AC voltage rating is increased to 300V, providing additional design margin.

Mechanical Compatibility: Identical through-hole mounting, physical dimensions, and pin configuration ensure direct PCB compatibility without layout modifications.

Thermal Consideration: The RN114-1-02-15M operating temperature range (-40°C ~ 100°C) is a subset of the original part (-40°C ~ 125°C). Applications requiring operation above 100°C must be evaluated against specific thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can the RN114-1-02-15M be used as a direct replacement for the RN114-1-02?

A: Yes. The RN114-1-02-15M is a direct manufacturer substitute with identical mechanical dimensions, pin configuration, and equivalent electrical performance. No PCB modifications are required.

Q: What is the difference in inductance measurement frequency between the two parts?

A: The RN114-1-02 specifies 15 mH @ 1 kHz, while the RN114-1-02-15M specifies 15 mH @ 10 kHz. Both parts deliver 15 mH inductance at their respective measurement frequencies. The inductance value remains functionally equivalent for power line filtering applications.

Q: Is the RN114-1-02-15M suitable for applications requiring operation above 100°C?

A: The RN114-1-02-15M is rated for -40°C ~ 100°C operation. Applications requiring sustained operation above 100°C must be evaluated against specific thermal and performance requirements. The original RN114-1-02 supports -40°C ~ 125°C; however, its obsolete status limits procurement viability.

Q: What are the packaging differences between these parts?

A: The RN114-1-02 is supplied in standard packaging, while the RN114-1-02-15M is supplied in Tube packaging. Both use identical Horizontal, 4 PC Pin package / case configuration suitable for through-hole assembly.

Q: Are there compliance or certification differences?

A: The RN114-1-02-15M carries expanded certifications (ENEC, UR, VDE) compared to the RN114-1-02 (UR, VDE) and meets ROHS3 compliance versus RoHS Compliant. These enhancements support current regulatory requirements.

Q: What is the DC resistance difference, and does it affect circuit performance?

A: The RN114-1-02-15M has 370 mOhm DCR compared to 375 mOhm for the RN114-1-02, a 5 mOhm reduction. This minimal difference is within typical component tolerance and does not affect circuit performance in power line filtering applications.