ACML-0402-800-T Ferrite Bead Equivalent & Substitute Parts

Part Overview

The ACML-0402-800-T is a 0402 (1005 Metric) surface mount ferrite bead manufactured by Abracon LLC. This component provides 80 Ohms of impedance at 100 MHz with a maximum current rating of 200mA and 350mOhm DC resistance. The part is Active status and ROHS3 compliant, designed for single-line signal filtering applications in compact form factors. Equivalent and substitute parts are identified based on matching package dimensions, impedance characteristics, frequency response, and thermal operating range.

Key Parameters

Parameter	Value
Impedance @ 100 MHz	80 Ohms
Package / Case	0402 (1005 Metric)
Current Rating (Max)	200mA
DC Resistance (Max)	350mOhm
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
Number of Lines	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the ACML-0402-800-T are grouped based on the following critical parameters:

Exact Match (80 Ohm @ 100 MHz):

7427927280 (Würth Elektronik WE-CBF series)
GZ1005D800TF (Shenzhen Sunlord Electronics GZ series)

These parts maintain identical impedance at 100 MHz, matching current rating of 200mA, and identical package dimensions (0402/1005 Metric). Both are ROHS3 compliant and operate within the same temperature range.

Parametric Equivalent (75 Ohm @ 100 MHz):

7427927170 (Würth Elektronik WE-CBF series)
BBNQ00100505750Y00 (Pulse Electronics BBNQ series)

These parts provide 75 Ohms impedance at 100 MHz with higher current ratings (400mA) and lower DC resistance values (310mOhm and 300mOhm respectively). Both maintain 0402 package compatibility and ROHS3 compliance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DC Resistance (Max)	Package / Case	Height (Max)	Operating Temperature	RoHS Status	Product Status
ACML-0402-800-T	Abracon LLC	80 Ohms	200mA	350mOhm	0402 (1005 Metric)	0.026" (0.65mm)	-55°C ~ 125°C	ROHS3 Compliant	Active
7427927280	Würth Elektronik	80 Ohms	200mA	250mOhm	0402 (1005 Metric)	0.022" (0.55mm)	-55°C ~ 125°C	ROHS3 Compliant	Active
GZ1005D800TF	Shenzhen Sunlord Electronics	80 Ohms	200mA	350mOhm	0402 (1005 Metric)	0.026" (0.65mm)	-55°C ~ 125°C	ROHS3 Compliant	Active
7427927170	Würth Elektronik	75 Ohms	400mA	310mOhm	0402 (1005 Metric)	0.022" (0.55mm)	-55°C ~ 125°C	ROHS3 Compliant	Active
BBNQ00100505750Y00	Pulse Electronics	75 Ohms	400mA	300mOhm	0402 (1005 Metric)	0.024" (0.60mm)	-55°C ~ 125°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Direct Substitutes (Impedance Match): Parts 7427927280 and GZ1005D800TF are direct substitutes for ACML-0402-800-T, maintaining 80 Ohms impedance at 100 MHz and 200mA current rating. Both are Active status products with ROHS3 compliance. The 7427927280 offers reduced DC resistance (250mOhm vs 350mOhm) and lower profile height (0.022" vs 0.026"), while GZ1005D800TF matches the original DC resistance specification exactly.

Parametric Alternatives (Impedance Variation): Parts 7427927170 and BBNQ00100505750Y00 provide 75 Ohms impedance with enhanced current handling (400mA vs 200mA) and improved DC resistance characteristics. These are suitable for applications where the 5 Ohm impedance reduction is acceptable and higher current capacity is beneficial. Both maintain 0402 package compatibility and ROHS3 compliance.

All substitute parts operate within the identical temperature range (-55°C ~ 125°C) and maintain surface mount compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can 7427927280 replace ACML-0402-800-T directly? A: Yes. Both parts provide 80 Ohms impedance at 100 MHz with 200mA current rating and 0402 package dimensions. The 7427927280 has lower DC resistance (250mOhm) and reduced height (0.022"), making it a direct electrical and mechanical substitute.

Q: What is the difference between 80 Ohm and 75 Ohm ferrite beads? A: The impedance value determines the filtering characteristics at 100 MHz. The 80 Ohm parts (ACML-0402-800-T, 7427927280, GZ1005D800TF) provide higher impedance, while 75 Ohm parts (7427927170, BBNQ00100505750Y00) offer slightly lower impedance with higher current capacity (400mA vs 200mA).

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and maintain the same environmental compliance as the original ACML-0402-800-T.

Q: Does package height variation affect PCB layout? A: The height differences are minimal (0.022" to 0.026"). All parts fit the 0402 (1005 Metric) footprint. Height variation may be relevant only in extremely space-constrained applications with fixed clearance requirements.

Q: Can I use the 400mA rated parts in a 200mA application? A: Yes. The 7427927170 and BBNQ00100505750Y00 are rated for 400mA maximum current, making them suitable for applications requiring only 200mA. The higher current rating provides additional design margin.

Q: What is the significance of DC resistance differences? A: DC resistance affects power dissipation and insertion loss. Lower DC resistance (250mOhm in 7427927280 vs 350mOhm in ACML-0402-800-T) results in reduced heat generation and lower signal attenuation, beneficial for high-frequency signal integrity applications.

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