ALFT-04-6 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ALFT-04-6 is a 3 mH, 2-line common mode choke manufactured by Abracon LLC, designed for signal line filtering applications in through-hole configurations. This component operates at a maximum current rating of 3.7A with a DC resistance of 16mOhm and is rated for operating temperatures between -25°C and 85°C. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for this product category while maintaining mechanical compatibility and compliance certifications.

Substiute Parts

ALFT-04-6

Abracon LLCIn Stock: 1001ALFT-04-6 Datasheet

Current PartRFQ

ALFT-04-5

Abracon LLCIn Stock: 876ALFT-04-5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALFT-04-6 is determined by the following critical parameters:

Mechanical Compatibility: Mounting type (Through Hole), package configuration (Vertical, 4 PC Pin), and physical dimensions (34.00mm L x 18.00mm W x 31.80mm H max) must remain identical to ensure direct board-level replacement without layout modifications.

Electrical Performance: The substitute must operate within the same series (ALFT-04), maintain 2-line common mode choke functionality for signal line filtering, and support the operating temperature range of -25°C to 85°C.

Compliance & Certification: RoHS3 compliance, REACH Unaffected status, and MSL rating of 1 (Unlimited) must be maintained across all substitute parts.

Functional Parameters: While inductance and current rating may vary within the allowed tolerance band for this product category, the substitute must be rated for applications requiring common mode filtering in signal line circuits. The ALFT-04-5 qualifies as a parametric equivalent based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

Both the ALFT-04-6 and ALFT-04-5 maintain Active product status with full RoHS3 compliance and REACH Unaffected certification. Selection between these parts should be based on circuit requirements for inductance and current handling capacity. The ALFT-04-6 provides 3 mH inductance at 3.7A maximum current, while the ALFT-04-5 provides 2 mH inductance at 4A maximum current with lower DC resistance. Both parts are suitable for direct substitution in through-hole signal line filtering applications where mechanical and thermal requirements align with the specified operating temperature range of -25°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can the ALFT-04-5 be used as a direct replacement for the ALFT-04-6?

A: Yes, the ALFT-04-5 is mechanically and electrically compatible for direct board-level substitution. Both parts share identical mounting type (Through Hole), package configuration (Vertical, 4 PC Pin), and physical dimensions (34.00mm x 18.00mm x 31.80mm max height). Both maintain the same operating temperature range (-25°C to 85°C) and compliance certifications (RoHS3, REACH Unaffected).

Q: What are the key electrical differences between ALFT-04-6 and ALFT-04-5?

A: The ALFT-04-6 is rated for 3 mH inductance at 3.7A maximum current with 16mOhm DC resistance. The ALFT-04-5 is rated for 2 mH inductance at 4A maximum current with 13mOhm DC resistance. Circuit design requirements for inductance value and current capacity should determine which part is appropriate for your application.

Q: Are both parts available in the same packaging?

A: Yes. Both the ALFT-04-6 and ALFT-04-5 are supplied in Tray packaging with Vertical, 4 PC Pin configuration, enabling direct substitution without packaging or handling modifications.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both parts are RoHS3 compliant, REACH Unaffected, and carry MSL rating of 1 (Unlimited). Both maintain Active product status with identical environmental and regulatory certifications.

Q: What is the primary consideration when selecting between these substitute parts?

A: The primary consideration is circuit-level inductance and current requirements. The ALFT-04-6 provides higher inductance (3 mH) at lower maximum current (3.7A), while the ALFT-04-5 provides lower inductance (2 mH) at higher maximum current (4A) with improved DC resistance characteristics. Selection should be based on the specific filtering and current-handling demands of your signal line application.