Z0805C152DSMST Ferrite Bead Equivalent & Substitute Parts

Part Overview

The Z0805C152DSMST is a signal line ferrite bead manufactured by KEMET, designed for electromagnetic interference (EMI) suppression in 0805 (2012 Metric) surface mount applications. This component provides 1.5 kOhms impedance at 100 MHz with a maximum current rating of 400mA and 350mOhm DC resistance. The part is classified as Obsolete, necessitating identification of equivalent alternatives for ongoing production and repair applications. Substitute parts must maintain identical electrical performance characteristics and package specifications to ensure direct compatibility in existing circuit designs.

Substiute Parts

Z0805C152DSMST

KEMETIn Stock: 971Z0805C152DSMST Datasheet

Current PartRFQ

MMZ2012Y152BT000

TDK CorporationIn Stock: 5354MMZ2012Y152BT000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Z0805C152DSMST ferrite bead is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Impedance value: 1.5 kOhms @ 100 MHz (exact match required)
• Filter type: Signal Line (single line configuration)
• Operating temperature range: -55°C to 125°C minimum

Mechanical Equivalence Requirements:

• Package designation: 0805 (2012 Metric)
• Mounting type: Surface Mount
• Physical dimensions: 0.079" L × 0.049" W (2.00mm × 1.25mm)
• Maximum height: 0.041" (1.05mm)

Compliance Requirements:

• RoHS3 Compliant status
• Moisture Sensitivity Level 1 (Unlimited)

Substitute parts must satisfy all electrical and mechanical parameters simultaneously. Current rating and DC resistance may vary within acceptable ranges provided the substitute part meets or exceeds the original specifications. The MMZ2012Y152BT000 from TDK Corporation qualifies as a direct substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The Z0805C152DSMST is classified as Obsolete, making the MMZ2012Y152BT000 the appropriate substitute for new designs and production continuity. The TDK substitute maintains full electrical and mechanical compatibility while offering improved current handling capacity (500mA versus 400mA) and acceptable DC resistance variance (400mOhm versus 350mOhm).

Both components carry ROHS3 Compliance and Moisture Sensitivity Level 1 (Unlimited) certifications, ensuring regulatory and environmental compatibility. The substitute part is classified as Last Time Buy status, indicating continued availability with defined procurement windows.

Selection between these parts should be based on supply chain availability and lead time requirements. The MMZ2012Y152BT000 is suitable for direct replacement in all applications where the Z0805C152DSMST was originally specified, provided circuit design accommodates the slightly higher DC resistance value.

Frequently Asked Questions (FAQ)

Q: Can the MMZ2012Y152BT000 be used as a direct replacement for the Z0805C152DSMST in existing designs?

A: Yes. The MMZ2012Y152BT000 meets all electrical and mechanical equivalence requirements. Both components share identical impedance (1.5 kOhms @ 100 MHz), package dimensions (0805 / 2012 Metric), and operating temperature range (-55°C to 125°C). The substitute part exceeds the original current rating and maintains acceptable DC resistance variance.

Q: What is the significance of the 0805 (2012 Metric) package designation?

A: The 0805 designation refers to the physical dimensions in imperial units (0.080" × 0.050"), while 2012 Metric indicates the equivalent metric dimensions (2.00mm × 1.25mm). Both the original and substitute parts conform to this standard surface mount package, ensuring PCB footprint compatibility and automated assembly compatibility.

Q: How do the current ratings differ between these parts, and does this affect selection?

A: The Z0805C152DSMST is rated for 400mA maximum current, while the MMZ2012Y152BT000 is rated for 500mA. The substitute part's higher current rating provides additional design margin and does not create compatibility issues. Selection should be based on actual circuit current requirements; if the original design operated below 400mA, the substitute is fully suitable.

Q: What does RoHS3 Compliance indicate for these ferrite beads?

A: RoHS3 Compliance certifies that both components meet Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, hexavalent chromium, and specified brominated flame retardants. This certification is required for products sold into European markets and many other regulated regions.

Q: Are there any PCB layout or thermal considerations when substituting these parts?

A: Both components share identical physical dimensions and thermal characteristics. No PCB layout modifications are required. The slightly higher DC resistance (400mOhm versus 350mOhm) in the substitute part results in negligible additional heat dissipation at rated current levels and does not require thermal design changes.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. These ferrite beads do not require special moisture-controlled storage, handling, or baking procedures prior to soldering. Standard warehouse storage conditions are acceptable.