Z0805C182DSMST Equivalent & Substitute Parts

Part Overview

The Z0805C182DSMST is a single-line signal ferrite bead manufactured by KEMET in the 0805 (2012 Metric) surface mount package. This component provides 1.8 kOhms impedance at 100 MHz with a maximum current rating of 300mA and 450mOhm DC resistance. The part is classified as Obsolete, making identification of equivalent and substitute components necessary for ongoing design support and procurement continuity. Ferrite beads in this category are used for electromagnetic interference (EMI) suppression and signal line filtering in electronic circuits.

Substiute Parts

Z0805C182DSMST

KEMETIn Stock: 1100Z0805C182DSMST Datasheet

Current PartRFQ

Z0805C152DSMST

KEMETIn Stock: 971Z0805C152DSMST Datasheet

Parametric EquivalentRFQ

BBGK00201209152Y00

Pulse ElectronicsIn Stock: 1169BBGK00201209152Y00 Datasheet

Parametric EquivalentRFQ

MMZ2012Y152BT000

TDK CorporationIn Stock: 5354MMZ2012Y152BT000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Z0805C182DSMST ferrite bead is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Package / Case: 0805 (2012 Metric)
• Mounting Type: Surface Mount
• Filter Type: Signal Line
• Number of Lines: 1
• Operating Temperature Range: -55°C ~ 125°C
• Physical Dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)

Functional Performance Parameters:

• Impedance @ 100 MHz: Substitute parts must provide impedance values within the operational range of the circuit design
• Current Rating (Max): Substitute parts must support the maximum current requirements of the application
• DC Resistance (DCR): Substitute parts must maintain acceptable DC resistance characteristics

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute parts meet all mandatory compatibility parameters and maintain compliance certifications. Variations in impedance, current rating, and DC resistance are acceptable when the substitute part specifications remain within the functional requirements of the target application.

Parameter Comparison

Engineering Selection Recommendations

Z0805C152DSMST (KEMET)

This substitute maintains the same series lineage (Z-SMS) and manufacturer as the main part. It provides lower impedance (1.5 kOhms vs. 1.8 kOhms) with improved current handling (400mA vs. 300mA) and reduced DC resistance (350mOhm vs. 450mOhm). The part is classified as Obsolete, consistent with the main part's status. All compliance certifications (ROHS3, MSL 1) are maintained. Physical dimensions and mounting characteristics are identical.

BBGK00201209152Y00 (Pulse Electronics)

This substitute provides equivalent impedance (1.5 kOhms @ 100 MHz) and current rating (400mA) with slightly higher DC resistance (400mOhm). The part is classified as Active, providing superior long-term availability compared to the Obsolete main part. All compliance certifications are maintained. Height specification is 0.043" (1.10mm), which is 0.002" higher than the main part but remains within typical PCB assembly tolerances for 0805 components.

MMZ2012Y152BT000 (TDK Corporation)

This substitute offers the lowest impedance (1.5 kOhms @ 100 MHz) with the highest current rating (500mA) and equivalent DC resistance (400mOhm). The part is classified as Last Time Buy, indicating limited future availability. All compliance certifications are maintained. Physical dimensions and height specifications match the main part exactly. This option provides the greatest performance margin for current-limited applications.

Frequently Asked Questions (FAQ)

Q: Can the Z0805C152DSMST be used as a direct replacement for the Z0805C182DSMST?

A: The Z0805C152DSMST is a parametric equivalent within the same manufacturer series. It shares identical package, mounting type, and physical dimensions. The primary difference is impedance (1.5 kOhms vs. 1.8 kOhms @ 100 MHz). Substitution is valid when the circuit design accommodates the lower impedance value and the higher current rating (400mA vs. 300mA) is acceptable.

Q: What is the significance of the impedance difference between the main part and substitute parts?

A: The main part provides 1.8 kOhms impedance at 100 MHz, while all identified substitutes provide 1.5 kOhms at the same frequency. Impedance determines the filtering and attenuation characteristics of the ferrite bead. Lower impedance results in reduced signal attenuation. Substitution is appropriate when the circuit design does not require the specific 1.8 kOhms impedance value.

Q: Are all substitute parts compatible with the same PCB layout and assembly process?

A: All substitute parts use the 0805 (2012 Metric) surface mount package with identical length and width dimensions (0.079" L x 0.049" W). Height variations are minimal (0.041" to 0.043"), which do not affect standard PCB assembly processes. All parts are compatible with existing 0805 footprints and reflow soldering profiles.

Q: What is the difference between Obsolete, Last Time Buy, and Active product status?

A: Obsolete status indicates the part is no longer manufactured and existing inventory is limited. Last Time Buy status indicates the manufacturer has announced final production and set a cutoff date for orders. Active status indicates the part is currently in production with ongoing availability. For long-term design support, Active status parts (BBGK00201209152Y00) provide superior procurement continuity.

Q: How do DC resistance differences affect circuit performance?

A: DC resistance (DCR) determines the resistive losses in the ferrite bead during signal transmission. The main part specifies 450mOhm maximum DCR, while substitutes range from 350mOhm to 400mOhm. Lower DCR reduces signal attenuation and power dissipation. All specified values are within typical operating ranges for 0805 ferrite beads and do not introduce incompatibility.

Q: Are all substitute parts RoHS3 compliant?

A: All identified substitute parts are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), matching the main part's compliance certifications. This ensures compatibility with environmental and regulatory requirements for electronic component procurement and assembly.