FE2X47-3-2 Equivalent & Substitute Parts

Part Overview

The FE2X47-3-2 is a 2-line common mode choke (CMC) designed for power line filtering applications with a through-hole mounting configuration. This component features a 300mA current rating and 2.9Ohm maximum DC resistance, operating across a temperature range of -40°C to 125°C with 250V AC voltage rating. The part is classified as obsolete, necessitating identification of equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

FE2X47-3-2

Pulse ElectronicsIn Stock: 1190FE2X47-3-2 Datasheet

Current PartRFQ

FE2X39-3-2NL

Pulse ElectronicsIn Stock: 3455FE2X39-3-2NL Datasheet

Parametric EquivalentRFQ

SU9H-03050

KEMETIn Stock: 2025SU9H-03050 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FE2X47-3-2 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Number of Lines: 2 (mandatory match)
• Mounting Type: Through Hole (mandatory match)
• Package / Case: Vertical, 4 PC Pin (mandatory match)
• Voltage Rating - AC: 250V (mandatory match)
• Current Rating (Max): Equal to or greater than 300mA
• DC Resistance (DCR) (Max): Equal to or less than 2.9Ohm
• Operating Temperature Range: Must encompass or exceed -40°C ~ 125°C
• Filter Type: Power Line (mandatory match)

Substitute Classification:

Parametric Equivalent: FE2X39-3-2NL (Pulse Electronics) — Identical electrical and mechanical specifications with improved current rating (350mA) and lower DCR (2.6Ohm), maintaining all dimensional and functional requirements.

Similar Substitute: SU9H-03050 (KEMET) — Meets core electrical requirements with matching current rating (300mA) and voltage specifications. Dimensional variations exist (0.669" L x 0.610" W, 0.492" height) but maintains identical pin configuration and through-hole mounting. Includes specified inductance parameter (5 mH @ 1 kHz) not provided for the main part.

Parameter Comparison

Engineering Selection Recommendations

FE2X39-3-2NL (Recommended Primary Substitute): This Pulse Electronics component is the optimal replacement for the obsolete FE2X47-3-2. It maintains identical physical dimensions, pin configuration, and operating temperature range while providing superior electrical performance through increased current rating (350mA vs. 300mA) and reduced DC resistance (2.6Ohm vs. 2.9Ohm). The part is active in production with RoHS compliance and REACH unaffected status, ensuring long-term availability and regulatory alignment.

SU9H-03050 (Alternative Substitute): The KEMET SU9H-03050 provides functional equivalence with matching current rating and voltage specifications. This option is suitable when dimensional constraints permit the reduced height profile (0.492" vs. 0.803"). The part is active with ROHS3 compliance and REACH unaffected status. The operating temperature range (-25°C ~ 120°C) is narrower than the original specification and should be evaluated against application requirements.

Frequently Asked Questions (FAQ)

Q: Can FE2X39-3-2NL be used as a direct replacement for FE2X47-3-2?

A: Yes. The FE2X39-3-2NL maintains identical physical dimensions (0.724" L x 0.528" W, 0.803" height), pin configuration (Vertical, 4 PC Pin), and operating temperature range (-40°C ~ 125°C). Electrical performance is superior with higher current rating and lower DC resistance, making it functionally compatible for all applications requiring the original part.

Q: What are the dimensional differences between FE2X47-3-2 and SU9H-03050?

A: The SU9H-03050 has a smaller footprint and significantly reduced height. Length is 0.669" vs. 0.724", width is 0.610" vs. 0.528", and height is 0.492" vs. 0.803". Both maintain identical pin configuration and through-hole mounting. PCB layout and clearance requirements must be verified before substitution.

Q: Are there compliance differences between the substitute parts?

A: FE2X39-3-2NL carries RoHS compliance and REACH unaffected status. SU9H-03050 carries ROHS3 compliance and REACH unaffected status. The original FE2X47-3-2 has vendor-undefined REACH status. Both substitutes meet current regulatory requirements for power line filtering applications.

Q: Does the operating temperature range differ between substitutes?

A: FE2X39-3-2NL maintains the original range of -40°C ~ 125°C. SU9H-03050 operates across -25°C ~ 120°C, which is narrower at the lower temperature limit. Applications requiring operation below -25°C must use FE2X39-3-2NL.

Q: What is the DC resistance impact of using SU9H-03050?

A: The SU9H-03050 has a maximum DC resistance of 3Ohm compared to 2.9Ohm for the original part. This 0.1Ohm difference represents approximately 3.4% higher resistance and should be evaluated in power dissipation and filtering performance calculations for the specific application.