MMZ2012Y301BTD25 Equivalent & Substitute Parts

Part Overview

The MMZ2012Y301BTD25 is a 0805 (2012 Metric) single-line ferrite bead manufactured by TDK Corporation, rated for 300 Ohms impedance at 100 MHz with a maximum current rating of 600mA and 150mOhm DC resistance. This component is designated as Last Time Buy, indicating discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring signal line filtering in 0805 package form factor.

Substiute Parts

MMZ2012Y301BTD25

TDK CorporationIn Stock: 844MMZ2012Y301BTD25 Datasheet

Current PartRFQ

MMZ1608Y301BTD25

TDK CorporationIn Stock: 3250MMZ1608Y301BTD25 Datasheet

MFR RecommendedRFQ

MMZ2012R301ATD25

TDK CorporationIn Stock: 2650MMZ2012R301ATD25 Datasheet

Parametric EquivalentRFQ

ABBK00201209301Y00

Pulse ElectronicsIn Stock: 1026ABBK00201209301Y00 Datasheet

MFR RecommendedRFQ

ABGK00201209301Y00

Pulse ElectronicsIn Stock: 800ABGK00201209301Y00 Datasheet

MFR RecommendedRFQ

MH2029-301Y

Bourns Inc.In Stock: 12956MH2029-301Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMZ2012Y301BTD25 is determined by the following critical parameters: impedance specification (300 Ohms @ 100 MHz), package form factor (0805/2012 Metric), filter type (signal line), and single-line configuration. Current rating and DC resistance are secondary parameters that define performance boundaries within the same package class.

Substitute parts are grouped into two categories:

Category 1: Same Package, Same Core Specifications — Parts maintaining 0805 package, 300 Ohms @ 100 MHz impedance, and single-line signal filtering. These parts differ in current rating, DC resistance, or packaging format (Tape & Reel vs. Cut Tape).

Category 2: Smaller Package Alternative — The MMZ1608Y301BTD25 (0603/1608 Metric) maintains identical impedance and filter type but operates in a reduced footprint with lower current rating (500mA vs. 600mA).

Parameter Comparison

Engineering Selection Recommendations

MMZ2012R301ATD25 (TDK Corporation) — Parametric equivalent with identical electrical specifications and package. Differs only in packaging format (Cut Tape vs. Tape & Reel). Suitable for direct substitution where packaging format is not a constraint. Maintains Last Time Buy status.

ABGK00201209301Y00 (Pulse Electronics) — Active product with 0805 package and 300 Ohms @ 100 MHz impedance. Exceeds current rating requirement (700mA vs. 600mA) and maintains comparable DC resistance (180mOhm). Operating temperature range reduced to -40°C ~ 125°C. Automotive-qualified. Suitable for applications not requiring -55°C minimum temperature.

MH2029-301Y (Bourns Inc.) — Active product with highest current rating (1A) and lowest DC resistance (200mOhm) among 0805 alternatives. Supports both power and signal line filtering. Maintains full -55°C ~ 125°C operating range. Suitable for high-current applications requiring enhanced performance margin.

MMZ1608Y301BTD25 (TDK Corporation) — Active product with identical impedance and filter type in reduced 0603 package. Current rating reduced to 500mA; DC resistance increased to 300mOhm. Suitable only where board space constraints justify reduced current capacity and increased losses.

ABBK00201209301Y00 (Pulse Electronics) — Active product with 0805 package and 300 Ohms @ 100 MHz impedance. Current rating reduced to 300mA; DC resistance increased to 300mOhm. Operating temperature range -40°C ~ 125°C. Automotive-qualified. Suitable only for low-current applications within reduced temperature range.

Frequently Asked Questions (FAQ)

Q: Can MMZ2012R301ATD25 replace MMZ2012Y301BTD25 directly?

A: Yes. Both parts are TDK Corporation ferrite beads with identical electrical specifications (300 Ohms @ 100 MHz, 600mA, 150mOhm). The only difference is packaging format: MMZ2012R301ATD25 is supplied in Cut Tape format while MMZ2012Y301BTD25 is Tape & Reel. Electrical performance and PCB footprint are identical.

Q: What is the primary constraint when selecting a substitute for the 0805 package?

A: The 300 Ohms @ 100 MHz impedance specification and single-line signal filtering function are the primary constraints. All 0805 substitutes maintain these parameters. Secondary constraints include current rating (600mA nominal), DC resistance (150mOhm nominal), and operating temperature range (-55°C ~ 125°C for full compatibility).

Q: Can ABBK00201209301Y00 be used in place of MMZ2012Y301BTD25?

A: ABBK00201209301Y00 maintains the 0805 package and 300 Ohms @ 100 MHz impedance but has reduced current rating (300mA vs. 600mA) and increased DC resistance (300mOhm vs. 150mOhm). Substitution is valid only if circuit current requirements do not exceed 300mA and increased signal loss is acceptable. Operating temperature range is also reduced to -40°C ~ 125°C.

Q: Is MMZ1608Y301BTD25 a suitable substitute?

A: MMZ1608Y301BTD25 is a smaller package alternative (0603 vs. 0805) with identical impedance and filter type. It is suitable only if board space constraints justify accepting reduced current rating (500mA vs. 600mA) and increased DC resistance (300mOhm vs. 150mOhm). PCB layout modifications are required due to different footprint dimensions.

Q: What advantage does MH2029-301Y offer?

A: MH2029-301Y is an active Bourns product with the highest current rating (1A) and lowest DC resistance (200mOhm) among available 0805 substitutes. It supports both power and signal line filtering and maintains the full -55°C ~ 125°C operating temperature range. It is suitable for applications requiring enhanced current capacity and reduced insertion loss.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of MMZ2012Y301BTD25.