MMZ2012S151AT000 Equivalent & Substitute Parts

Part Overview

The MMZ2012S151AT000 is a ferrite bead signal line filter manufactured by TDK Corporation, rated at 150 Ohms @ 100 MHz in a 0805 (2012 Metric) surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. Ferrite beads serve as passive EMI suppression elements in signal line applications, attenuating high-frequency noise while maintaining signal integrity. Identifying equivalent and substitute parts is essential for design continuity, long-term supply chain planning, and production sustainability when original inventory becomes unavailable.

Substiute Parts

MMZ2012S151AT000

TDK CorporationIn Stock: 1116MMZ2012S151AT000 Datasheet

Current PartRFQ

MMZ1608S181ATA00

TDK CorporationIn Stock: 8395MMZ1608S181ATA00 Datasheet

MFR RecommendedRFQ

MFBW1V2012-151-R

Eaton - Electronics DivisionIn Stock: 987MFBW1V2012-151-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for ferrite bead signal line filters is determined by the following critical parameters:

Primary Substitution Criteria:

• Impedance @ Frequency: Must match 150 Ohms @ 100 MHz
• Package / Case: Must be compatible with 0805 (2012 Metric) footprint
• Filter Type: Must be Signal Line configuration
• Number of Lines: Must be 1 (single line)
• Mounting Type: Must be Surface Mount

Secondary Compatibility Factors:

• Operating Temperature range must encompass or match the application requirement
• RoHS and REACH compliance status must meet regulatory requirements
• Moisture Sensitivity Level (MSL) must be acceptable for assembly processes

The substitute parts listed below satisfy the primary substitution criteria. Secondary parameters may vary within acceptable engineering tolerances for signal line ferrite bead applications.

Parameter Comparison

Engineering Selection Recommendations

MFBW1V2012-151-R (Eaton - Electronics Division) is the primary substitute for MMZ2012S151AT000. Both components share identical impedance (150 Ohms @ 100 MHz), package footprint (0805 / 2012 Metric), and single-line signal configuration. The Eaton part maintains the same physical dimensions and mounting compatibility. The operating temperature range of the Eaton part (-40°C ~ 85°C) is narrower than the TDK original (-55°C ~ 125°C); this substitution is suitable for applications within the Eaton temperature specification. The Eaton part offers superior current handling (2A vs. unspecified) and lower DC resistance (100mOhm), providing enhanced performance margins. Both parts are ROHS3 compliant with MSL 1 rating and active product status, ensuring long-term availability.

MMZ1608S181ATA00 (TDK Corporation) is an alternative substitute with the same manufacturer as the original part. This component maintains TDK quality and the full operating temperature range (-55°C ~ 125°C). However, the package footprint differs (0603 / 1608 Metric vs. 0805 / 2012 Metric), requiring PCB layout modification. The impedance is 180 Ohms @ 100 MHz, representing a 20% increase from the original 150 Ohms specification. This part is suitable only when PCB redesign is feasible and the higher impedance value is acceptable for the application. The MMZ1608S181ATA00 is currently in active production with substantial inventory availability.

Frequently Asked Questions (FAQ)

Q: Can MFBW1V2012-151-R be used as a direct drop-in replacement for MMZ2012S151AT000?

A: Yes. Both parts share identical impedance (150 Ohms @ 100 MHz), package footprint (0805 / 2012 Metric), and physical dimensions. No PCB layout changes are required. The substitution is valid provided the application operating temperature remains within -40°C ~ 85°C.

Q: What is the key difference between the two substitute parts?

A: MFBW1V2012-151-R maintains the original impedance and package size, requiring no design changes. MMZ1608S181ATA00 offers the same manufacturer and full temperature range but requires PCB redesign due to different package size (0603 vs. 0805) and has higher impedance (180 Ohms vs. 150 Ohms).

Q: Why does MMZ1608S181ATA00 have different impedance (180 Ohms vs. 150 Ohms)?

A: Ferrite bead impedance is determined by core material composition and geometry. The 0603 package geometry results in different electromagnetic characteristics, producing 180 Ohms @ 100 MHz. This part is suitable only when the application can tolerate the impedance variation.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both MFBW1V2012-151-R and MMZ1608S181ATA00 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current regulatory requirements.

Q: What is the current handling capability of the original MMZ2012S151AT000?

A: The current rating is not specified in the component datasheet. The substitute MFBW1V2012-151-R is rated for 2A maximum current, providing a reference for typical 0805 ferrite bead current handling in this impedance class.

Q: Can I use MMZ1608S181ATA00 if my PCB layout cannot be modified?

A: No. The 0603 (1608 Metric) package footprint is physically incompatible with 0805 (2012 Metric) PCB pads. PCB redesign is mandatory for this substitution.