Z1206C800APWST Ferrite Bead 80 Ohm 1206 Equivalent & Substitute Parts

Part Overview

The Z1206C800APWST is a 1206 (3216 Metric) surface mount ferrite bead manufactured by KEMET, designed for single-line power line filtering applications. This component provides 80 Ohms impedance at 100 MHz with a maximum current rating of 4A and 10mOhm DC resistance. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design continuity. Ferrite beads in this specification are used in power distribution circuits to suppress high-frequency noise and electromagnetic interference.

Key Parameters

Parameter	Value
Impedance @ Frequency	80 Ohms @ 100 MHz
Current Rating (Max)	4A
DC Resistance (DCR) (Max)	10mOhm
Package / Case	1206 (3216 Metric)
Number of Lines	1
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the Z1206C800APWST ferrite bead is determined by strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Impedance: 80 Ohms @ 100 MHz (exact match required)
Current Rating: Minimum 4A
DC Resistance: Maximum 10mOhm
Package: 1206 (3216 Metric) surface mount
Number of Lines: Single line (1LN)
Operating Temperature: -40°C to 125°C minimum
RoHS3 Compliance and MSL 1 rating

Substitution Categories:

Category A - Parametric Equivalents (Identical Electrical Specifications): Parts with identical impedance, current rating, and DCR specifications. These parts are direct functional replacements with matching electrical performance.

Category B - Enhanced Performance Substitutes (Higher Current Rating): Parts with identical impedance and DCR but higher current rating capability. These parts provide superior performance margin in the same package footprint.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DCR (Max)	Operating Temp	Height (Max)	Product Status	Packaging
Z1206C800APWST	KEMET	80 Ohms	4A	10mOhm	-40°C ~ 125°C	0.071" (1.80mm)	Obsolete	Cut Tape (CT)
BBUP00321611800Y00	Pulse Electronics	80 Ohms	6A	12mOhm	-55°C ~ 125°C	0.051" (1.30mm)	Active	Tape & Reel (TR)
FBMJ3216HS800-T	Taiyo Yuden	80 Ohms	4A	10mOhm	-40°C ~ 125°C	0.051" (1.30mm)	Not For New Designs	Cut Tape (CT) & Digi-Reel®
LBMCC321611T800RG	Taiyo Yuden	80 Ohms	4A	10mOhm	-40°C ~ 125°C	0.051" (1.30mm)	Active	Tape & Reel (TR)
LLMCC321611T800RG	Taiyo Yuden	80 Ohms	4A	10mOhm	-40°C ~ 125°C	0.051" (1.30mm)	Active	Tape & Reel (TR)
LMMCC321611T800RG	Taiyo Yuden	80 Ohms	4A	10mOhm	-40°C ~ 125°C	0.051" (1.30mm)	Active	Tape & Reel (TR)
LSMCC321611T800RG	Taiyo Yuden	80 Ohms	4A	10mOhm	-40°C ~ 125°C	0.051" (1.30mm)	Active	Tape & Reel (TR)

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Mitigation):

The LBMCC321611T800RG, LLMCC321611T800RG, LMMCC321611T800RG, and LSMCC321611T800RG from Taiyo Yuden are parametric equivalents with identical electrical specifications (80 Ohms @ 100 MHz, 4A, 10mOhm DCR) and matching operating temperature range. All four parts carry Active product status and ROHS3 compliance. These parts are suitable for direct substitution in existing designs. The primary difference is packaging format (Tape & Reel versus Cut Tape) and reduced maximum height (0.051" versus 0.071"), which provides improved PCB assembly compatibility.

For Enhanced Performance Applications:

The BBUP00321611800Y00 from Pulse Electronics provides higher current rating capability (6A versus 4A) while maintaining the required 80 Ohms impedance. This part is Active and ROHS3 compliant. The extended operating temperature range (-55°C to 125°C) provides additional thermal margin. Note that DCR is specified at 12mOhm maximum, which exceeds the original 10mOhm specification.

For Legacy Design Continuity:

The FBMJ3216HS800-T from Taiyo Yuden is a parametric equivalent with identical electrical specifications. However, this part carries "Not For New Designs" status, making it suitable only for sustaining production of existing designs where component qualification has been completed.

Frequently Asked Questions (FAQ)

Q: Can BBUP00321611800Y00 be used as a direct replacement for Z1206C800APWST?

A: BBUP00321611800Y00 meets the core impedance requirement (80 Ohms @ 100 MHz) and exceeds the current rating (6A versus 4A). However, the DCR specification is 12mOhm maximum compared to the original 10mOhm. This higher DCR may result in increased power dissipation in high-current applications. Electrical validation is required if DCR-sensitive filtering performance is critical to the circuit design.

Q: What is the difference between the Taiyo Yuden LBMCC, LLMCC, LMMCC, and LSMC series parts?

A: All four Taiyo Yuden series (LBMCC321611T800RG, LLMCC321611T800RG, LMMCC321611T800RG, LSMCC321611T800RG) provide identical electrical performance with 80 Ohms impedance, 4A current rating, and 10mOhm DCR. The series designation reflects internal product line organization within Taiyo Yuden. All are Active status parts with ROHS3 compliance and Tape & Reel packaging. Selection among these four parts is based on inventory availability and supply chain considerations.

Q: Does the reduced height of substitute parts (0.051" versus 0.071") affect PCB assembly?

A: The reduced maximum height of Taiyo Yuden parts (1.30mm versus 1.80mm) is compatible with standard 1206 package footprints and does not create assembly conflicts. The lower profile may provide benefits for applications with height constraints or improved solder joint reliability in automated assembly processes.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the original Z1206C800APWST component.

Q: What is the significance of "Not For New Designs" status for FBMJ3216HS800-T?

A: "Not For New Designs" indicates that Taiyo Yuden has designated this part for sustaining production only. This part is suitable for replacement in existing designs where component qualification has been completed, but should not be selected for new product development. Active status parts (LBMCC, LLMCC, LMMCC, LSMCC series) are recommended for new designs.

Q: Can packaging format (Cut Tape versus Tape & Reel) affect substitution compatibility?

A: Packaging format affects supply chain logistics and automated assembly processes but does not impact electrical or mechanical compatibility. Cut Tape packaging is suitable for manual assembly or small-volume production. Tape & Reel packaging is optimized for high-volume automated assembly. Selection should align with manufacturing process requirements.

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