ACM-31-261M-T Equivalent & Substitute Parts

Part Overview

The ACM-31-261M-T is a 2-line common mode choke (CMC) manufactured by Abracon LLC, designed for signal line filtering in surface mount applications. This component provides 260 Ohms impedance at 100 MHz with a maximum current rating of 310mA and DC resistance of 500mOhm. The part is Active status and RoHS3 compliant, making it suitable for modern electronic assemblies requiring electromagnetic interference (EMI) suppression on signal lines.

Equivalent substitute parts are identified when they maintain identical electrical performance specifications and compatible mechanical characteristics, ensuring direct replacement capability in circuit designs.

Substiute Parts

ACM-31-261M-T

Abracon LLCIn Stock: 899ACM-31-261M-T Datasheet

Current PartRFQ

DLW31SN261SQ2L

Murata ElectronicsIn Stock: 3419DLW31SN261SQ2L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ACM-31-261M-T are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters (Must Match Exactly):

• Impedance: 260 Ohms @ 100 MHz
• Current Rating: 310mA maximum
• DC Resistance: 500mOhm maximum
• Voltage Rating: 50V DC
• Operating Temperature Range: -40°C ~ 85°C
• Filter Type: Signal Line
• Number of Lines: 2

Mechanical Parameters (Must Be Compatible):

• Mounting Type: Surface Mount
• Package Configuration: Horizontal, 4 PC Pad
• Physical dimensions within acceptable tolerance for PCB footprint compatibility

Compliance Requirements:

• RoHS3 Compliant
• MSL Rating: 1 (Unlimited)

The DLW31SN261SQ2L from Murata Electronics meets all specified electrical parameters and maintains compatible mechanical characteristics, qualifying it as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the ACM-31-261M-T and DLW31SN261SQ2L are Active status components with identical electrical specifications and full RoHS3 compliance. Selection between these parts should be based on:

Availability and Lead Time: Verify current inventory status with your supplier, as stock levels may vary between manufacturers.

PCB Layout Considerations: The DLW31SN261SQ2L has slightly larger physical dimensions (0.126" L vs 0.118" L and 0.083" H vs 0.079" H). Confirm that PCB footprint and clearance requirements accommodate the Murata part before substitution.

Supply Chain Strategy: Both parts are from established manufacturers with Active product status, ensuring long-term availability and consistent quality.

Compliance Verification: Both parts meet ROHS3 and MSL 1 requirements for modern manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can DLW31SN261SQ2L be used as a direct replacement for ACM-31-261M-T?

A: Yes, the DLW31SN261SQ2L is a parametric equivalent with identical electrical specifications (260 Ohms @ 100 MHz, 310mA, 500mOhm DCR, 50V DC). Both use the same Horizontal 4 PC Pad package configuration. Physical dimensions differ slightly; verify PCB layout compatibility before substitution.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution eligibility is determined by: impedance value and frequency (260 Ohms @ 100 MHz), current rating (310mA), DC resistance (500mOhm), voltage rating (50V DC), operating temperature range (-40°C ~ 85°C), filter type (Signal Line), number of lines (2), and package configuration (Horizontal, 4 PC Pad).

Q: Are there any dimensional constraints I should consider?

A: The Murata DLW31SN261SQ2L is slightly larger in length (3.20mm vs 3.00mm) and height (2.10mm vs 2.00mm). Confirm that your PCB layout, solder mask openings, and component clearances accommodate these dimensions.

Q: Do both parts have the same compliance certifications?

A: Yes, both the ACM-31-261M-T and DLW31SN261SQ2L are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for standard surface mount assembly processes.

Q: What packaging options are available for these parts?

A: The ACM-31-261M-T is available in Cut Tape (CT) packaging. The DLW31SN261SQ2L is available in both Cut Tape (CT) and Digi-Reel® packaging options.