ACML-0805-310-T Ferrite Bead Equivalent & Substitute Parts

Part Overview

The ACML-0805-310-T is a single-line ferrite bead manufactured by Abracon LLC in 0805 (2012 Metric) surface mount package. This component provides 31 Ohms impedance at 100 MHz with a maximum current rating of 1.5A and 50mOhm DC resistance. The part is currently in Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are necessary when the original part reaches end-of-life status, inventory constraints occur, or when alternative manufacturers' components offer improved electrical characteristics within acceptable tolerance ranges.

Substiute Parts

ACML-0805-310-T

Abracon LLCIn Stock: 4460ACML-0805-310-T Datasheet

Current PartRFQ

2508053007Y3

Fair-Rite Products Corp.In Stock: 1708462508053007Y3 Datasheet

Parametric EquivalentRFQ

74279206

Würth ElektronikIn Stock: 1675374279206 Datasheet

Parametric EquivalentRFQ

MH2029-300Y

Bourns Inc.In Stock: 66370MH2029-300Y Datasheet

Parametric EquivalentRFQ

MMZ2012R300AT000

TDK CorporationIn Stock: 69124MMZ2012R300AT000 Datasheet

Parametric EquivalentRFQ

MMZ2012Y300BT000

TDK CorporationIn Stock: 844855MMZ2012Y300BT000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACML-0805-310-T is determined by the following critical parameters:

Mechanical Compatibility: Package type (0805/2012 Metric), mounting type (Surface Mount), and physical dimensions must match or be within acceptable PCB assembly tolerances.

Electrical Compatibility: Impedance at 100 MHz must be within ±5% of the original specification (31 Ohms). Current rating must equal or exceed 1.5A. DC resistance must not exceed 50mOhm to maintain equivalent performance characteristics.

Environmental & Compliance: Operating temperature range must encompass -55°C to 125°C. RoHS3 compliance and MSL 1 rating are required for equivalent substitution.

All five substitute parts listed meet these criteria with impedance values of 30 Ohms at 100 MHz (approximately 3.2% deviation from the original 31 Ohms specification), identical package dimensions, and equivalent environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

Active Status Preference: The Fair-Rite Products Corp. part 2508053007Y3, Würth Elektronik part 74279206, and Bourns Inc. part MH2029-300Y maintain Active product status, ensuring long-term availability and supply chain stability compared to the Last Time Buy status of TDK Corporation parts MMZ2012R300AT000 and MMZ2012Y300BT000.

Electrical Performance: Parts 74279206 and MH2029-300Y offer reduced DC resistance (25mOhm versus 50mOhm), providing lower insertion loss. Part 2508053007Y3 provides intermediate DC resistance (30mOhm) with higher current capacity (3A versus 1.5A).

Current Capacity Consideration: For applications requiring headroom above the 1.5A specification, parts 2508053007Y3, 74279206, and MH2029-300Y provide 3A maximum current rating. For applications with strict current requirements at 1.5A, MMZ2012R300AT000 and MMZ2012Y300BT000 maintain identical electrical characteristics to the original part.

Compliance & Certifications: All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature range (-55°C to 125°C), ensuring equivalent environmental performance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can MMZ2012R300AT000 or MMZ2012Y300BT000 be used as direct replacements despite Last Time Buy status?

A: Yes, both TDK parts are electrically and mechanically equivalent to ACML-0805-310-T with identical impedance (30 Ohms @ 100 MHz), current rating (1.5A), and DC resistance (50mOhm). However, Last Time Buy status indicates limited future availability. Active status alternatives should be prioritized for new designs.

Q: What is the impedance tolerance between the original part and substitutes?

A: The original ACML-0805-310-T specifies 31 Ohms at 100 MHz. All substitute parts specify 30 Ohms at 100 MHz, representing a 3.2% deviation. This falls within typical ferrite bead impedance tolerance ranges for equivalent substitution.

Q: Are there dimensional differences between substitute parts?

A: All parts use the 0805 (2012 Metric) package. Height specifications range from 1.05mm to 1.10mm maximum. Length and width dimensions are 2.00mm x 1.25mm or 2.00mm x 1.20mm, all compatible with standard 0805 PCB footprints.

Q: Which substitute offers the best performance improvement?

A: Parts 74279206 (Würth Elektronik) and MH2029-300Y (Bourns Inc.) provide the lowest DC resistance at 25mOhm (50% reduction from original 50mOhm) while maintaining 3A current capacity. These parts reduce insertion loss and heat generation in signal and power line applications.

Q: Can higher current-rated substitutes be used in applications designed for 1.5A?

A: Yes. Parts rated for 3A (2508053007Y3, 74279206, MH2029-300Y) are backward compatible with 1.5A applications. Higher current rating provides design margin without affecting performance at lower current levels.

Q: Are all substitutes suitable for both signal line and power line applications?

A: The MH2029-300Y is specified for Power, Signal Line applications. Fair-Rite 2508053007Y3, Würth Elektronik 74279206, and TDK parts are specified for Signal Line applications. Confirm application requirements before selection.