FE2X03-3-2NL Common Mode Choke Equivalent & Substitute Parts

Part Overview

The FE2X03-3-2NL is a 2-line common mode choke manufactured by Pulse Electronics, designed for through-hole mounting applications requiring EMI filtering at 1.5A maximum current. This component is classified as Active product status with full RoHS compliance and REACH unaffected designation. Substitute parts are identified when inventory constraints, lead time requirements, or application-specific current rating needs necessitate alternative sourcing within the FE2X series.

Substiute Parts

FE2X03-3-2NL

Pulse ElectronicsIn Stock: 989FE2X03-3-2NL Datasheet

Current PartRFQ

FE2X10-6-2NL

Pulse ElectronicsIn Stock: 1026FE2X10-6-2NL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FE2X03-3-2NL is determined by the following mandatory parameters:

• Series Alignment: Both main and substitute parts must belong to the FE2X series
• Line Configuration: 2-line common mode choke topology required
• Mounting Type: Through-hole vertical orientation with 4 PC pin package
• Voltage Rating: AC 250V minimum
• Temperature Range: -40°C ~ 125°C operating window
• Compliance: RoHS compliant, REACH unaffected status
• Current Rating: Substitute parts must equal or exceed 1.5A maximum current rating
• DC Resistance: Substitute parts must not exceed 215mOhm DCR specification

The FE2X10-6-2NL qualifies as a parametric equivalent substitute based on meeting all mandatory criteria while providing enhanced current handling capability (1.8A vs. 1.5A) and acceptable DCR tolerance (240mOhm vs. 215mOhm).

Parameter Comparison

Engineering Selection Recommendations

Both FE2X03-3-2NL and FE2X10-6-2NL maintain Active product status with identical RoHS compliance and REACH unaffected certifications, ensuring regulatory continuity in design implementations. The FE2X10-6-2NL provides increased current margin (1.8A vs. 1.5A) suitable for applications requiring higher transient current handling or thermal headroom. DC resistance differential (240mOhm vs. 215mOhm) remains within acceptable engineering tolerance for common mode filtering applications. Physical dimension increase in the substitute part (32.41mm L x 18.39mm W vs. 18.39mm L x 13.41mm W) requires PCB layout verification for spatial constraints. Selection between these parts depends on available inventory, lead time requirements, and application current demand specifications.

Frequently Asked Questions (FAQ)

Q: Can FE2X10-6-2NL directly replace FE2X03-3-2NL in existing designs?

A: Direct substitution is electrically valid provided PCB layout accommodates the larger physical dimensions (32.41mm L x 18.39mm W vs. 18.39mm L x 13.41mm W). All electrical parameters, mounting configuration, and compliance certifications align with the original specification.

Q: What is the significance of the current rating difference (1.8A vs. 1.5A)?

A: The FE2X10-6-2NL supports higher maximum continuous current, providing design margin for applications with variable or peak current demands. This does not affect compatibility with circuits designed for 1.5A operation.

Q: Does the DC resistance increase (240mOhm vs. 215mOhm) impact performance?

A: The 25mOhm differential represents approximately 11.6% increase in DCR. For common mode choke applications, this variance remains within typical engineering tolerance and does not compromise EMI filtering effectiveness in standard 250V AC circuits.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both FE2X03-3-2NL and FE2X10-6-2NL operate across -40°C to 125°C, ensuring thermal compatibility across industrial and commercial application environments.

Q: What packaging considerations apply to substitution?

A: Both parts utilize identical through-hole vertical mounting with 4 PC pin configuration. PCB footprint compatibility is confirmed; however, vertical clearance must accommodate the FE2X10-6-2NL height of 35.40mm versus 20.40mm for the original part.