ALFT-04-2 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The ALFT-04-2 is a 350 µH common mode choke manufactured by Abracon LLC, designed for signal line filtering applications. This through-hole component operates at 6A maximum current with 6mOhm DC resistance and is rated for -25°C to 85°C operating temperature. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified when design requirements allow for variations in inductance or DC resistance while maintaining compatibility with the same mounting footprint, pin configuration, and electrical ratings.

Substiute Parts

ALFT-04-2

Abracon LLCIn Stock: 1095ALFT-04-2 Datasheet

Current PartRFQ

ALFT-04-3

Abracon LLCIn Stock: 1024ALFT-04-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ALFT-04-2 are identified based on the following criteria:

Mandatory Matching Parameters:

• Series: ALFT-04
• Number of Lines: 2
• Current Rating (Max): 6A
• Mounting Type: Through Hole
• Package / Case: Vertical, 4 PC Pin
• Size / Dimension: 34.00mm L x 18.00mm W
• Height (Max): 31.80mm
• Operating Temperature: -25°C ~ 85°C
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Inductance @ Frequency: May vary within the ALFT-04 series specifications
• DC Resistance (Max): May vary within acceptable limits for the series

The ALFT-04-3 qualifies as a substitute because it maintains identical mechanical compatibility, electrical ratings, and compliance certifications while offering a higher inductance value (500 µH @ 1 kHz) and marginally higher DC resistance (7mOhm).

Parameter Comparison

Engineering Selection Recommendations

Both ALFT-04-2 and ALFT-04-3 are active production parts from Abracon LLC with identical ROHS3 compliance and REACH unaffected status. Selection between these parts depends on circuit inductance requirements. The ALFT-04-2 provides 350 µH inductance with 6mOhm DCR, while the ALFT-04-3 provides 500 µH inductance with 7mOhm DCR. Both parts share identical mechanical footprints, pin configurations, current ratings, and operating temperature ranges, ensuring direct board-level compatibility. The choice between these substitutes is determined by the specific filtering frequency response and attenuation characteristics required by the application.

Frequently Asked Questions (FAQ)

Q: Can ALFT-04-3 be used as a direct replacement for ALFT-04-2?

A: Yes, the ALFT-04-3 is mechanically and electrically compatible with the ALFT-04-2 for through-hole PCB applications. Both parts use identical 4-pin vertical packages with 34.00mm x 18.00mm footprints and 31.80mm maximum height. The primary difference is inductance value (500 µH vs. 350 µH) and DC resistance (7mOhm vs. 6mOhm). Substitution is valid when circuit design permits the higher inductance specification.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by matching series designation (ALFT-04), number of lines (2), current rating (6A), mounting type (through hole), package configuration (vertical 4-pin), physical dimensions (34.00mm x 18.00mm x 31.80mm max), operating temperature range (-25°C to 85°C), and compliance certifications (ROHS3). Inductance and DC resistance may vary within the series.

Q: Are there inventory considerations for these parts?

A: Both ALFT-04-2 and ALFT-04-3 are listed as new original stock. ALFT-04-2 has 1044 pieces available, while ALFT-04-3 has 1001 pieces available. Availability should be confirmed at time of procurement.

Q: Do these parts require any special handling or storage?

A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling.