MMZ2012Y601BT000 Equivalent & Substitute Parts

Part Overview

The MMZ2012Y601BT000 is a 600 Ohm ferrite bead signal line filter in 0805 (2012 Metric) surface mount package manufactured by TDK Corporation. This component operates across -55°C to 125°C with a maximum current rating of 500mA and DC resistance of 200mOhm. The part is designated as Last Time Buy, indicating production discontinuation. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring signal line EMI suppression at this impedance level.

Substiute Parts

MMZ2012Y601BT000

TDK CorporationIn Stock: 165444MMZ2012Y601BT000 Datasheet

Current PartRFQ

MMZ1608Y601BTA00

TDK CorporationIn Stock: 69418MMZ1608Y601BTA00 Datasheet

MFR RecommendedRFQ

MMZ2012R601AT000

TDK CorporationIn Stock: 9397MMZ2012R601AT000 Datasheet

Parametric EquivalentRFQ

MH2029-601Y

Bourns Inc.In Stock: 746708MH2029-601Y Datasheet

DirectRFQ

BLM21BD601SN1D

Murata ElectronicsIn Stock: 3156BLM21BD601SN1D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MMZ2012Y601BT000 are classified based on the following substitution criteria:

Primary Substitution Criteria:

• Impedance @ Frequency: 600 Ohms @ 100 MHz (mandatory match)
• Filter Type: Signal Line (mandatory match)
• Number of Lines: 1 (mandatory match)
• Operating Temperature Range: -55°C ~ 125°C (mandatory match)
• RoHS Status: ROHS3 Compliant (mandatory match)

Secondary Compatibility Parameters:

• Current Rating (Max): Equal to or greater than 500mA
• DC Resistance (DCR) (Max): Equal to or less than 200mOhm
• Package / Case: 0805 (2012 Metric) or smaller form factor (0603)
• Mounting Type: Surface Mount

Substitution Categories:

1. Parametric Equivalent – MMZ2012R601AT000: Identical electrical specifications and package, same manufacturer (TDK), different product variant within same series.

2. Direct Manufacturer Equivalent – MH2029-601Y: Same impedance, frequency, package, and operating temperature. Manufactured by Bourns Inc. Higher current rating (1A vs 500mA) and identical DCR provide enhanced capability margin.

3. MFR Recommended Equivalent – BLM21BD601SN1D: Same impedance, frequency, package, and operating temperature. Manufactured by Murata Electronics. Lower current rating (300mA) and higher DCR (350mOhm) represent reduced performance margin.

4. MFR Recommended Smaller Package – MMZ1608Y601BTA00: Same impedance, frequency, and operating temperature. Smaller 0603 (1608 Metric) package from TDK. Higher DCR (400mOhm) and identical current rating. Suitable where space constraints permit package reduction.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Design Changes): Select MMZ2012R601AT000 or MH2029-601Y. Both maintain identical package footprint (0805), operating temperature range, and impedance specifications. MMZ2012R601AT000 provides same-manufacturer continuity within the TDK MMZ series. MH2029-601Y offers active product status and higher current rating (1A), providing additional design margin for signal line applications.

For Space-Constrained Designs: MMZ1608Y601BTA00 enables package reduction to 0603 form factor while maintaining core electrical specifications (600 Ohms @ 100 MHz, 500mA current rating). Accept higher DCR (400mOhm vs 200mOhm) and verify thermal performance in target application. Active product status ensures long-term availability.

For Current-Limited Applications: BLM21BD601SN1D is suitable only where circuit current does not exceed 300mA. Higher DCR (350mOhm) increases insertion loss. Active product status and Murata manufacturing provide alternative supply source.

Avoid: Parts with product status "Last Time Buy" (MMZ2012Y601BT000, MMZ2012R601AT000) should not be selected for new designs. Prioritize active status parts (MH2029-601Y, BLM21BD601SN1D, MMZ1608Y601BTA00) for long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can MMZ1608Y601BTA00 replace MMZ2012Y601BT000 in existing PCB layouts?

A: No. MMZ1608Y601BTA00 uses 0603 (1608 Metric) package versus 0805 (2012 Metric) for the main part. PCB footprint modification is required. Verify board space availability before design change.

Q: What is the impact of higher DCR in substitute parts?

A: DC Resistance (DCR) directly affects insertion loss and heat generation. BLM21BD601SN1D (350mOhm) and MMZ1608Y601BTA00 (400mOhm) produce greater voltage drop and power dissipation than the main part (200mOhm). Calculate power loss (P = I²R) for your circuit current to confirm thermal acceptability.

Q: Is MH2029-601Y suitable for 500mA applications?

A: Yes. MH2029-601Y has 1A current rating, exceeding the 500mA requirement of MMZ2012Y601BT000. This provides 2x safety margin and is suitable for direct replacement in 500mA designs.

Q: Why does BLM21BD601SN1D have lower current rating than the main part?

A: BLM21BD601SN1D is rated for 300mA maximum current. This part is suitable only for applications where circuit current remains below 300mA. Exceeding this rating risks component damage and circuit failure.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (MMZ2012R601AT000, MH2029-601Y, BLM21BD601SN1D, MMZ1608Y601BTA00) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the main part specifications.

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

A: MH2029-601Y, BLM21BD601SN1D, and MMZ1608Y601BTA00 all have Active product status, ensuring continued manufacturing and supply. MMZ2012Y601BT000 and MMZ2012R601AT000 are Last Time Buy and should not be selected for new designs.