MMZ2012Y202BT000 Equivalent & Substitute Parts

Part Overview

The MMZ2012Y202BT000 is a 1-line signal ferrite bead manufactured by TDK Corporation in 0805 (2012 Metric) package format. This component provides 2 kOhms impedance at 100 MHz with a maximum current rating of 400mA and 500mOhm DC resistance. The part is classified as Last Time Buy, indicating production discontinuation. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring ferrite bead filtering in signal line circuits.

Key Parameters

Parameter	Value
Impedance @ 100 MHz	2 kOhms
Package / Case	0805 (2012 Metric)
Current Rating (Max)	400mA
DC Resistance (Max)	500mOhm
Filter Type	Signal Line
Number of Lines	1
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MMZ2012Y202BT000 is determined by the following critical parameters: impedance value at 100 MHz, package dimensions (0805 metric), filter type classification, number of signal lines, and compliance certifications. Substitute parts must maintain electrical compatibility within the specified operating temperature range and meet RoHS requirements.

The substitute parts are categorized as follows:

MFR Recommended Substitutes: Parts meeting or exceeding the primary electrical specifications with active product status.

Parametric Equivalents: Parts matching core electrical parameters with equivalent performance characteristics.

Acceptable variations include current rating adjustments (provided the substitute meets or exceeds application requirements), minor impedance tolerance differences within the 2 kOhm range, and package height variations within surface mount assembly constraints.

Parameter Comparison

Parameter	MMZ2012Y202BT000	MMZ1608A222BTA00	HZ0805C202R-10	FB201209T-202Y-S
Manufacturer	TDK Corporation	TDK Corporation	Laird-Signal Integrity Products	Cal-Chip Electronics, Inc.
Impedance @ 100 MHz	2 kOhms	2.2 kOhms	2 kOhms	2 kOhms
Package / Case	0805 (2012 Metric)	0603 (1608 Metric)	0805 (2012 Metric)	0805 (2012 Metric)
Current Rating (Max)	400mA	200mA	300mA	500mA
DC Resistance (Max)	500mOhm	800mOhm	500mOhm	500mOhm
Filter Type	Signal Line	Signal Line	Power, Signal Line	Signal Line
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 125°C	-55°C ~ 125°C
Product Status	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

HZ0805C202R-10 (Laird-Signal Integrity Products) provides the closest electrical match with identical impedance (2 kOhms @ 100 MHz), DC resistance (500mOhm), and package dimensions (0805 metric). This part maintains active product status and ROHS3 compliance. The current rating of 300mA is lower than the original 400mA specification; selection of this substitute requires verification that application current demands do not exceed 300mA.

FB201209T-202Y-S (Cal-Chip Electronics, Inc.) matches all primary electrical parameters with identical impedance, DC resistance, and package format. This part offers the highest current rating (500mA) among available substitutes and maintains the full operating temperature range (-55°C ~ 125°C). Active product status and RoHS compliance support long-term supply continuity.

MMZ1608A222BTA00 (TDK Corporation) is a same-manufacturer alternative with active product status. The 0603 package represents a size reduction from the original 0805 format, requiring PCB layout modification. The impedance specification (2.2 kOhms) and current rating (200mA) differ from the original part; this substitute is suitable only for applications with reduced current requirements and where impedance tolerance permits the 0.2 kOhm increase.

Frequently Asked Questions (FAQ)

Q: Can MMZ1608A222BTA00 be used as a direct replacement for MMZ2012Y202BT000?

A: No. While both are TDK ferrite beads with signal line filtering, the MMZ1608A222BTA00 uses a smaller 0603 package requiring PCB redesign. The impedance specification (2.2 kOhms vs. 2 kOhms) and current rating (200mA vs. 400mA) differ. This part is suitable only for applications tolerating these parameter changes and where physical space permits package downsizing.

Q: What is the primary difference between HZ0805C202R-10 and FB201209T-202Y-S?

A: Both parts match the original impedance and DC resistance specifications in the same 0805 package. HZ0805C202R-10 has a reduced current rating (300mA vs. 400mA original) and narrower operating temperature range (-40°C to 125°C vs. -55°C to 125°C). FB201209T-202Y-S provides higher current capacity (500mA) and maintains the full temperature range. Selection depends on application current and temperature requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitutes meet RoHS compliance requirements. MMZ1608A222BTA00, HZ0805C202R-10, and FB201209T-202Y-S are ROHS3 compliant or RoHS compliant, ensuring regulatory compatibility with the original MMZ2012Y202BT000 specification.

Q: Can HZ0805C202R-10 be used in high-current applications?

A: HZ0805C202R-10 has a maximum current rating of 300mA. Applications requiring the original 400mA specification or higher must use FB201209T-202Y-S (500mA rating) or verify that circuit current demands remain below 300mA.

Q: Does package size affect circuit performance?

A: Package dimensions affect PCB layout and thermal characteristics. HZ0805C202R-10 and FB201209T-202Y-S maintain the original 0805 package format, requiring no layout modification. MMZ1608A222BTA00 uses a smaller 0603 package, necessitating PCB redesign and potentially affecting thermal performance in high-current applications.

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