Z0201C601ASMST Ferrite Bead Equivalent & Substitute Parts

Part Overview

The Z0201C601ASMST is a 600 Ohm ferrite bead manufactured by KEMET, designed for single-line signal filtering applications in 0201 (0603 Metric) surface mount packages. This component operates at 100 MHz impedance with a maximum current rating of 150mA and DC resistance of 1.2 Ohm. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical performance characteristics while meeting current manufacturing and compliance standards.

Substiute Parts

Z0201C601ASMST

KEMETIn Stock: 911Z0201C601ASMST Datasheet

Current PartRFQ

MMZ0603Y601CTD25

TDK CorporationIn Stock: 35067MMZ0603Y601CTD25 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Z0201C601ASMST ferrite bead is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Impedance value of 600 Ohms at 100 MHz frequency
• Single signal line filter configuration
• Operating temperature range of -55°C to 125°C

Mechanical Equivalence Criteria:

• 0201 (0603 Metric) package designation
• Surface mount mounting type
• Physical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Maximum height of 0.013" (0.33mm)

Compliance Equivalence Criteria:

• ROHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected status

Substitute parts may exceed the original specifications in current rating and DC resistance without compromising circuit functionality, provided all other parameters remain equivalent or superior.

Parameter Comparison

Engineering Selection Recommendations

The MMZ0603Y601CTD25 from TDK Corporation is a direct electrical and mechanical substitute for the obsolete Z0201C601ASMST. Both components share identical impedance characteristics at 100 MHz, matching package dimensions, and equivalent operating temperature ranges.

The TDK substitute offers the following advantages:

Product Status: The MMZ0603Y601CTD25 maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete KEMET part.

Performance Enhancement: The substitute provides increased current rating capacity (200mA versus 150mA), allowing operation in applications with higher signal line current demands without component degradation.

Compliance Certification: The TDK part carries AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components. Both parts maintain ROHS3 compliance and REACH Unaffected status.

DC Resistance: The substitute exhibits slightly elevated DC resistance (1.5 Ohm maximum versus 1.2 Ohm), which remains within acceptable limits for signal line filtering applications and does not compromise impedance performance at the specified 100 MHz frequency.

Frequently Asked Questions (FAQ)

Q: Can the MMZ0603Y601CTD25 be used as a direct replacement for the Z0201C601ASMST in existing designs?

A: Yes. Both components share identical impedance values at 100 MHz, matching package designations (0201/0603 Metric), and equivalent operating temperature ranges (-55°C to 125°C). Physical dimensions and mounting characteristics are identical, enabling direct substitution in surface mount applications.

Q: What is the significance of the higher current rating on the TDK substitute?

A: The MMZ0603Y601CTD25 supports 200mA maximum current compared to 150mA on the original part. This increased capacity provides design margin for applications operating near the original current limit and accommodates potential future design modifications without component replacement.

Q: Does the increased DC resistance of the substitute affect circuit performance?

A: The DC resistance increase from 1.2 Ohm to 1.5 Ohm on the substitute does not alter the impedance characteristic at 100 MHz, which remains 600 Ohms. DC resistance affects signal insertion loss and heat dissipation; the 0.3 Ohm difference is negligible for single-line ferrite bead applications.

Q: Are there packaging differences between these components?

A: The original KEMET part is supplied in Cut Tape (CT) and Digi-Reel® packaging, while the TDK substitute uses standard Tape & Reel (TR) packaging. Both formats are compatible with automated assembly equipment; packaging selection depends on procurement and production workflow requirements.

Q: What does AEC-Q200 certification on the TDK part indicate?

A: AEC-Q200 is an automotive industry qualification standard for passive components. This certification indicates the TDK part meets automotive reliability and performance requirements, providing additional assurance for applications in automotive or mission-critical environments.

Q: Are both components RoHS compliant?

A: Yes. Both the Z0201C601ASMST and MMZ0603Y601CTD25 are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.