Z0201C800ASMST Ferrite Bead 80 OHM 0201 Equivalent & Substitute Parts

Part Overview

The Z0201C800ASMST is a single-line ferrite bead manufactured by KEMET, designed for signal line filtering applications in 0201 (0603 Metric) surface mount packages. This component provides 80 Ohms of impedance at 100 MHz with a maximum current rating of 200mA and operates across the temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Impedance @ 100 MHz	80 Ohms
Current Rating (Max)	200mA
DC Resistance (Max)	400mOhm
Package / Case	0201 (0603 Metric)
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 125°C
Number of Lines	1
Filter Type	Signal Line
Height (Max)	0.013" (0.33mm)
Size / Dimension	0.024" L x 0.012" W (0.60mm x 0.30mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the Z0201C800ASMST ferrite bead is determined by the following critical parameters:

Primary Matching Criteria:

Impedance @ 100 MHz: 80 Ohms (exact match required for primary substitutes)
Package / Case: 0201 (0603 Metric) (mandatory for mechanical compatibility)
Mounting Type: Surface Mount (required for PCB assembly compatibility)
Number of Lines: 1 (single signal line configuration)
Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Secondary Compatibility Parameters:

Current Rating (Max): 200mA or higher (equal or greater capacity acceptable)
DC Resistance (Max): 400mOhm or lower (lower values acceptable)
Height (Max): 0.013" (0.33mm) or lower (dimensional constraint for board layout)
RoHS3 Compliance: Required for regulatory alignment

Impedance Tolerance Substitutes: Parts with impedance values of 70 Ohms or 75 Ohms at 100 MHz are classified as parametric equivalents when all other mechanical and electrical parameters align. These substitutes are suitable for applications where impedance variation within ±6% to ±12% is acceptable.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DC Resistance (Max)	Package / Case	Height (Max)	Product Status	RoHS Status
Z0201C800ASMST	KEMET	80 Ohms	200mA	400mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Obsolete	ROHS3 Compliant
BLM03AG800SN1D	Murata Electronics	80 Ohms	200mA	400mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant
FB060303T-800Y-S	Cal-Chip Electronics, Inc.	80 Ohms	300mA	350mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	RoHS Compliant
GZ0603D800CTF	Shenzhen Sunlord Electronics Co., Ltd.	80 Ohms	200mA	400mOhm	0201 (0603 Metric)	0.014" (0.35mm)	Active	ROHS3 Compliant
MMZ0603S800CT000	TDK Corporation	80 Ohms	200mA	300mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant
BLM03AG700SN1D	Murata Electronics	70 Ohms	200mA	400mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant
BLM03BD750SN1D	Murata Electronics	75 Ohms	300mA	400mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant
BBSJ00060303750Y00	Pulse Electronics	75 Ohms	300mA	400mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant
BMC1HY0070AN	TE Connectivity Passive Product	70 Ohms	300mA	350mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant
FB060303T-700Y-S	Cal-Chip Electronics, Inc.	70 Ohms	300mA	350mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	RoHS Compliant
MMZ0603Y750CT000	TDK Corporation	75 Ohms	300mA	350mOhm	0201 (0603 Metric)	0.013" (0.33mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Replacement (80 Ohm @ 100 MHz):

The following parts provide direct electrical and mechanical equivalence to the Z0201C800ASMST:

BLM03AG800SN1D (Murata Electronics): Active product with identical impedance, current rating, and DC resistance specifications. ROHS3 compliant. Available in Tape & Reel packaging with 81,528 units in stock. Recommended as primary replacement due to high inventory availability and established supply chain reliability.
MMZ0603S800CT000 (TDK Corporation): Active product with 80 Ohms impedance and 200mA current rating. DC resistance of 300mOhm provides superior performance compared to the original 400mOhm specification. ROHS3 compliant. Available in Tape & Reel packaging with 43,436 units in stock.
FB060303T-800Y-S (Cal-Chip Electronics, Inc.): Active product with 80 Ohms impedance. Offers enhanced current rating of 300mA and reduced DC resistance of 350mOhm. RoHS compliant. Available in Tape & Reel packaging with 30,756 units in stock.
GZ0603D800CTF (Shenzhen Sunlord Electronics Co., Ltd.): Active product with matching impedance and current specifications. Height specification of 0.014" (0.35mm) exceeds the original 0.013" (0.33mm) maximum by 0.002". ROHS3 compliant. Limited inventory of 633 units.

Parametric Equivalents (70-75 Ohm @ 100 MHz):

The following parts provide functional equivalence with impedance variation:

BLM03BD750SN1D (Murata Electronics): 75 Ohms impedance with enhanced 300mA current rating. ROHS3 compliant. 35,100 units in stock.
MMZ0603Y750CT000 (TDK Corporation): 75 Ohms impedance with 300mA current rating and 350mOhm DC resistance. ROHS3 compliant. 110,300 units in stock.
BBSJ00060303750Y00 (Pulse Electronics): 75 Ohms impedance with 300mA current rating. ROHS3 compliant. 901 units in stock.
BLM03AG700SN1D (Murata Electronics): 70 Ohms impedance with matching 200mA current rating. ROHS3 compliant. 16,940 units in stock.
BMC1HY0070AN (TE Connectivity Passive Product): 70 Ohms impedance with enhanced 300mA current rating and 350mOhm DC resistance. ROHS3 compliant. 30,202 units in stock.
FB060303T-700Y-S (Cal-Chip Electronics, Inc.): 70 Ohms impedance with 300mA current rating and 350mOhm DC resistance. RoHS compliant. 30,943 units in stock.

All substitute parts maintain the 0201 (0603 Metric) package, surface mount configuration, single signal line topology, and -55°C to 125°C operating temperature range. Selection should prioritize product status (active), regulatory compliance (ROHS3 preferred), inventory availability, and impedance requirements specific to the application circuit.

Frequently Asked Questions (FAQ)

Q: Can BLM03AG800SN1D be used as a direct replacement for Z0201C800ASMST?

A: Yes. BLM03AG800SN1D provides identical electrical specifications (80 Ohms @ 100 MHz, 200mA current rating, 400mOhm DC resistance) and mechanical compatibility (0201 package, surface mount, -55°C to 125°C operating range). The part is active and ROHS3 compliant.

Q: What is the difference between 80 Ohm and 75 Ohm ferrite beads in this package?

A: The impedance value determines the filtering characteristics at 100 MHz. An 80 Ohm bead provides higher impedance than a 75 Ohm bead, resulting in greater attenuation of high-frequency signals. The 5 Ohm difference represents a 6.25% variation. Selection depends on circuit requirements for signal line filtering performance.

Q: Are 70 Ohm ferrite beads suitable substitutes?

A: 70 Ohm ferrite beads are parametric equivalents when impedance tolerance of ±12.5% is acceptable in the application. These parts maintain identical package dimensions, mounting type, and operating temperature range. Circuit validation is required to confirm acceptable filtering performance at the reduced impedance level.

Q: Why does GZ0603D800CTF have a maximum height of 0.014" instead of 0.013"?

A: GZ0603D800CTF has a height specification of 0.014" (0.35mm), which exceeds the original Z0201C800ASMST specification of 0.013" (0.33mm) by 0.002". This 0.002" difference may impact PCB layout clearance in space-constrained applications. Verify board design tolerances before selection.

Q: What is the advantage of MMZ0603S800CT000 over the original part?

A: MMZ0603S800CT000 maintains the 80 Ohm impedance and 200mA current rating but provides reduced DC resistance of 300mOhm compared to the original 400mOhm specification. Lower DC resistance reduces power dissipation and heat generation in the component during operation.

Q: Can I use a ferrite bead with higher current rating than the original 200mA?

A: Yes. Parts with current ratings of 300mA or higher are backward compatible with applications designed for 200mA. The higher current rating provides additional design margin and thermal headroom. All other electrical and mechanical parameters must remain compatible.

Q: What does ROHS3 compliance mean for this component?

A: ROHS3 compliance indicates the ferrite bead meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, hexavalent chromium, and specific brominated flame retardants. ROHS3 compliant parts are suitable for applications requiring regulatory compliance in electronics manufacturing.

Q: Are all substitute parts available in the same packaging options?

A: No. Packaging options vary by manufacturer. The original Z0201C800ASMST is supplied in Cut Tape (CT). Substitute parts are available in Cut Tape (CT), Tape & Reel (TR), or Digi-Reel® formats. Verify packaging compatibility with assembly equipment and procurement requirements.

Q: What is the Moisture Sensitivity Level (MSL) for these ferrite beads?

A: All listed parts have MSL 1 (Unlimited), indicating no moisture sensitivity. These components do not require special moisture control during storage, handling, or assembly, simplifying supply chain management and manufacturing processes.

Q: How do I determine which substitute is best for my application?

A: Selection criteria include: (1) impedance requirement (80 Ohm for direct replacement, 70-75 Ohm for parametric equivalents), (2) current rating (200mA minimum, higher acceptable), (3) product status (active preferred over obsolete), (4) regulatory compliance (ROHS3 preferred), (5) inventory availability, and (6) packaging format compatibility with assembly equipment.

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