MMZ2012D800BT000 Equivalent & Substitute Parts

Part Overview

The MMZ2012D800BT000 is a 1-line signal ferrite bead manufactured by TDK Corporation in 0805 (2012 Metric) surface mount package. This component provides 80 Ohms impedance at 100 MHz with a maximum current rating of 500mA and 300mOhm DC resistance. The part is classified as Last Time Buy, indicating limited future availability. Equivalent and substitute parts are necessary to ensure design continuity and supply chain flexibility for applications requiring ferrite bead filtering in signal line circuits.

Substiute Parts

MMZ2012D800BT000

TDK CorporationIn Stock: 25489MMZ2012D800BT000 Datasheet

Current PartRFQ

MMZ1608D800BTA00

TDK CorporationIn Stock: 4862MMZ1608D800BTA00 Datasheet

MFR RecommendedRFQ

MMZ2012S800AT000

TDK CorporationIn Stock: 2618MMZ2012S800AT000 Datasheet

Parametric EquivalentRFQ

742792062

Würth ElektronikIn Stock: 8348742792062 Datasheet

Parametric EquivalentRFQ

BBBK00201209800Y00

Pulse ElectronicsIn Stock: 1119BBBK00201209800Y00 Datasheet

Parametric EquivalentRFQ

BLM21BB750SN1D

Murata ElectronicsIn Stock: 20155BLM21BB750SN1D Datasheet

Parametric EquivalentRFQ

EMI0805R-90

API Delevan Inc.In Stock: 1043EMI0805R-90 Datasheet

Parametric EquivalentRFQ

FB201209T-800Y-S-1

Cal-Chip Electronics, Inc.In Stock: 100962FB201209T-800Y-S-1 Datasheet

Parametric EquivalentRFQ

WLBD2012K2U800TP

Walsin Technology CorporationIn Stock: 800WLBD2012K2U800TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMZ2012D800BT000 is determined by the following criteria:

Primary Substitution Parameters:

• Impedance @ 100 MHz: 80 Ohms (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Number of Lines: 1 (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)
• Mounting Type: Surface Mount (exact match required)

Secondary Compatibility Parameters:

• Current Rating (Max): 500mA or higher
• DC Resistance (Max): 300mOhm or lower
• RoHS Status: ROHS3 Compliant or equivalent

Substitute parts are grouped into two categories: MFR Recommended (different package size but same electrical performance) and Parametric Equivalents (same package with matching or superior electrical characteristics).

Parameter Comparison

Engineering Selection Recommendations

Direct Parametric Equivalents (0805 Package, 80 Ohms @ 100 MHz):

MMZ2012S800AT000, BBBK00201209800Y00, FB201209T-800Y-S-1, and WLBD2012K2U800TP are direct parametric equivalents in the same 0805 package with identical impedance. These parts feature improved DC resistance characteristics (100–150mOhm) and higher current ratings (800mA) compared to the main part. All are ROHS3 compliant and suitable for direct substitution where board space and thermal performance are not constrained.

Active Status Advantage:

742792062 (Würth Elektronik) and BBBK00201209800Y00 (Pulse Electronics) maintain Active product status, ensuring long-term availability and supply chain stability. Both provide superior DC resistance (200mOhm and 150mOhm respectively) while maintaining the 80 Ohms impedance and 0805 package specification.

Size-Reduced Alternative:

MMZ1608D800BTA00 is a MFR-recommended alternative in the smaller 0603 (1608 Metric) package with identical electrical performance (80 Ohms, 500mA). This option is suitable only for applications where PCB space reduction is acceptable and mechanical constraints permit the smaller footprint.

Impedance Tolerance Considerations:

BLM21BB750SN1D (75 Ohms) and EMI0805R-90 (90 Ohms) deviate from the 80 Ohms specification and are listed as parametric equivalents only. These parts are suitable for applications with impedance tolerance specifications that permit ±10% or greater deviation from the nominal 80 Ohms value.

Frequently Asked Questions (FAQ)

Q: Can MMZ2012S800AT000 replace MMZ2012D800BT000 directly?

A: Yes. Both parts share identical impedance (80 Ohms @ 100 MHz), package (0805), and operating temperature range. MMZ2012S800AT000 provides superior DC resistance (100mOhm vs. 300mOhm) and higher current rating (800mA vs. 500mA), making it a direct upgrade. The only difference is packaging format (Cut Tape vs. Tape & Reel).

Q: What is the difference between the 0805 and 0603 package options?

A: The 0603 (1608 Metric) package is physically smaller than 0805 (2012 Metric). MMZ1608D800BTA00 in 0603 package is suitable only if PCB layout permits the reduced footprint. Electrical performance remains equivalent at 80 Ohms impedance and 500mA current rating.

Q: Are parts with different impedance values (75 Ohms or 90 Ohms) acceptable substitutes?

A: BLM21BB750SN1D (75 Ohms) and EMI0805R-90 (90 Ohms) are parametric equivalents only. Substitution is acceptable only if the application circuit design permits impedance deviation. Verify circuit performance requirements before selecting these alternatives.

Q: Which substitute part offers the best long-term availability?

A: BBBK00201209800Y00 (Pulse Electronics) and FB201209T-800Y-S-1 (Cal-Chip Electronics) maintain Active product status, indicating ongoing production and supply availability. MMZ2012D800BT000 and MMZ2012S800AT000 are both Last Time Buy, limiting future procurement options.

Q: Does DC resistance affect circuit performance?

A: DC resistance impacts thermal dissipation and insertion loss. Lower DC resistance (100–150mOhm) reduces heat generation and signal attenuation. The main part's 300mOhm specification is higher than most substitutes, which may be relevant in high-current or thermally constrained applications.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts are ROHS3 compliant or RoHS compliant, meeting environmental and regulatory requirements equivalent to the main part.