Z0805C470ASMST Ferrite Bead Equivalent & Substitute Parts

Part Overview

The Z0805C470ASMST is a signal line ferrite bead manufactured by KEMET, designed for electromagnetic interference (EMI) suppression in surface mount applications. This component provides 47 Ohms of impedance at 100 MHz with a maximum current rating of 1A and is housed in a 0805 (2012 Metric) package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

Z0805C470ASMST

KEMETIn Stock: 825Z0805C470ASMST Datasheet

Current PartRFQ

ACML-0805-500-T

Abracon LLCIn Stock: 1173ACML-0805-500-T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Z0805C470ASMST is determined by the following critical parameters:

Mechanical Compatibility: Package type (0805/2012 Metric), mounting type (Surface Mount), physical dimensions (0.079" L x 0.049" W), and maximum height (0.041") must be identical to ensure PCB layout and assembly compatibility.

Electrical Compatibility: Impedance at 100 MHz, current rating, and DC resistance must fall within acceptable operating ranges for the application circuit. The substitute part ACML-0805-500-T provides 50 Ohms @ 100 MHz, which represents a 6.4% variance from the original 47 Ohms specification. This variance remains within typical ferrite bead tolerance bands and maintains equivalent filtering characteristics for signal line applications.

Environmental & Compliance: Operating temperature range (-55°C ~ 125°C), RoHS3 compliance, and MSL rating (1 - Unlimited) must be maintained to ensure regulatory conformance and reliability across production and field conditions.

Product Status: The original part is obsolete; the substitute is active, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The ACML-0805-500-T from Abracon LLC is a direct substitute for the obsolete Z0805C470ASMST. Both components share identical mechanical specifications, package dimensions, and environmental operating ranges. The impedance variance of 3 Ohms (47 Ohms to 50 Ohms) is within standard ferrite bead manufacturing tolerances and does not compromise signal line filtering performance in typical EMI suppression applications.

Selection of the ACML-0805-500-T is supported by:

Compliance Alignment: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory conformance and manufacturing process compatibility.

Supply Chain Continuity: The substitute part is in active production status with confirmed inventory availability (1095 Pcs), eliminating obsolescence risk associated with the original KEMET component.

Electrical Equivalence: Matching current ratings (1A), DC resistance (50mOhm), and operating temperature range (-55°C ~ 125°C) ensure functional interchangeability in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the ACML-0805-500-T replace the Z0805C470ASMST in existing designs without PCB modification?

A: Yes. Both components use identical 0805 (2012 Metric) packages with matching physical dimensions (0.079" L x 0.049" W) and maximum height (0.041"). No PCB layout changes are required.

Q: What is the significance of the 3-Ohm impedance difference between 47 Ohms and 50 Ohms?

A: The 6.4% variance falls within standard ferrite bead impedance tolerances. Both values provide equivalent EMI suppression for signal line applications at 100 MHz. Circuit performance remains unchanged.

Q: Are there packaging differences between the original and substitute part?

A: The original Z0805C470ASMST is supplied in standard packaging, while the ACML-0805-500-T is supplied in Tape & Reel (TR) format. Both are surface mount compatible and suitable for automated assembly processes.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both components are ROHS3 compliant, have identical moisture sensitivity levels (MSL 1 - Unlimited), and operate across the same temperature range (-55°C ~ 125°C).

Q: Is the substitute part suitable for new production designs?

A: Yes. The ACML-0805-500-T is in active production status, ensuring long-term availability and supply chain stability for new designs and ongoing production requirements.