RN114-4-02 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The RN114-4-02 is a 1.5 mH, 2-line common mode choke designed for power line filtering applications in through-hole mounting configurations. Rated for 4A typical current with 35mOhm typical DC resistance, this component is classified as obsolete. Due to its discontinued status, identifying functionally equivalent active alternatives is essential for ongoing design support and procurement continuity.

Substiute Parts

RN114-4-02

Schaffner EMC Inc.In Stock: 1269RN114-4-02 Datasheet

Current PartRFQ

RN114-4-02-1M5

Schaffner EMC Inc.In Stock: 1569RN114-4-02-1M5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RN114-4-02-1M5 qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance value: 1.5 mH (measured at different frequencies: 1 kHz vs 10 kHz, both within the same inductance specification)
• Number of lines: 2-line configuration
• Current rating: 4A
• DC resistance: 34mOhm (Typ), functionally equivalent to 35mOhm (Typ)
• Mounting type: Through Hole
• Package configuration: Horizontal, 4 PC Pin
• Physical dimensions: Identical footprint (22.50mm x 21.50mm x 14.60mm)
• Filter type: Power Line

Acceptable Parameter Variations:

• Voltage rating increased from 250V AC to 300V AC (higher rating provides greater margin)
• Operating temperature range adjusted from -40°C ~ 125°C to -40°C ~ 100°C (subset of original range, acceptable for most applications)
• Compliance upgraded to ROHS3 and ENEC certification added (enhanced regulatory status)

Parameter Comparison

Engineering Selection Recommendations

The RN114-4-02-1M5 is the appropriate substitute for the obsolete RN114-4-02. Selection is based on:

Product Status: The RN114-4-02-1M5 maintains active production status with 1538 pcs in stock, ensuring procurement availability and long-term supply chain stability compared to the discontinued RN114-4-02.

Regulatory Compliance: The substitute part carries enhanced certifications (ENEC, UR, VDE) and ROHS3 compliance, meeting current regulatory requirements. Both parts maintain REACH Unaffected status.

Electrical Equivalence: Inductance, current rating, and DC resistance specifications are functionally identical. The increased AC voltage rating (300V vs 250V) provides additional safety margin without affecting circuit performance.

Mechanical Compatibility: Identical footprint, pin configuration, and mounting type ensure direct PCB compatibility without layout modifications.

Temperature Consideration: The substitute operates within -40°C ~ 100°C. Applications requiring operation above 100°C must be evaluated against specific system requirements.

Frequently Asked Questions (FAQ)

Q: Can RN114-4-02-1M5 be used as a direct replacement for RN114-4-02 without PCB modifications?

A: Yes. Both parts share identical physical dimensions (22.50mm x 21.50mm x 14.60mm), pin configuration (Horizontal, 4 PC Pin), and through-hole mounting type. No PCB layout changes are required.

Q: What is the difference between the inductance measurements at 1 kHz versus 10 kHz?

A: Both parts specify 1.5 mH inductance value. The measurement frequency difference (1 kHz vs 10 kHz) reflects different test conditions but does not affect the functional inductance specification for power line filtering applications.

Q: Is the operating temperature range reduction from -40°C ~ 125°C to -40°C ~ 100°C a limitation?

A: The substitute part operates within -40°C ~ 100°C. If your application requires sustained operation above 100°C, verify that system thermal management maintains component temperature within this range. For most power line filtering applications, this range is sufficient.

Q: Does the increased AC voltage rating (300V vs 250V) affect circuit design?

A: No. The higher voltage rating provides additional safety margin and does not require circuit modifications. The component remains suitable for 250V AC applications and is also rated for higher voltage systems up to 300V AC.

Q: What packaging differences exist between these parts?

A: RN114-4-02 is supplied in standard packaging, while RN114-4-02-1M5 is supplied in Tube packaging. Both are through-hole components suitable for automated or manual assembly processes.

Q: Are there compliance differences between the two parts?

A: RN114-4-02-1M5 includes ENEC certification in addition to UR and VDE approvals, and carries ROHS3 compliance versus RoHS Compliant status. These enhancements reflect current regulatory standards and do not affect functional compatibility.