LSMCC451611T111RG Equivalent & Substitute Parts

Part Overview

The LSMCC451611T111RG is a 110 Ohm power line ferrite bead manufactured by Taiyo Yuden in the 1806 (4516 Metric) surface mount package. This component operates at 100 MHz impedance with a maximum current rating of 4A and DC resistance of 14 mOhm. The part is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or alternative packaging formats are required for manufacturing processes. The substitute parts listed maintain electrical and mechanical compatibility within defined parameter tolerances.

Key Parameters

Parameter	Value	Unit
Impedance @ 100 MHz	110	Ohms
Current Rating (Max)	4	A
DC Resistance (Max)	14	mOhm
Package / Case	1806 (4516 Metric)	—
Operating Temperature Range	-40°C to 125°C	—
Mounting Type	Surface Mount	—
Height (Max)	0.051	inches (1.30 mm)
Size / Dimension	0.177" L x 0.063" W	(4.50 mm x 1.60 mm)
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution logic for the LSMCC451611T111RG is based on the following critical parameters:

Electrical Parameters:

Impedance @ 100 MHz: 110 Ohms (primary specification)
Current Rating: 4A maximum
DC Resistance: 14 mOhm maximum

Mechanical Parameters:

Package / Case: 1806 (4516 Metric) surface mount
Height: 0.051 inches (1.30 mm) maximum
Physical dimensions: 0.177" L x 0.063" W

Environmental & Compliance Parameters:

Operating Temperature: -40°C to 125°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories based on impedance specification:

Category 1: 110 Ohm Impedance (Direct Electrical Equivalents) Parts maintaining the exact 110 Ohm impedance specification at 100 MHz. These provide direct functional replacement without circuit performance alteration.

Category 2: 90 Ohm Impedance (Parametric Alternatives) Parts with 90 Ohm impedance at 100 MHz. These maintain all other electrical and mechanical parameters but operate at a different impedance value. Selection of these parts requires circuit-level evaluation of impedance tolerance requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Impedance @ 100 MHz (Ohms)	Current Rating (A)	DCR (mOhm)	Package	Packaging Format	Product Status	RoHS Status
LSMCC451611T111RG	Taiyo Yuden	LSMC	110	4	14	1806 (4516 Metric)	Cut Tape (CT) & Digi-Reel®	Active	ROHS3 Compliant
FBMJ4516HS111-T	Taiyo Yuden	FB	110	4	14	1806 (4516 Metric)	Cut Tape (CT) & Digi-Reel®	Not For New Designs	ROHS3 Compliant
Z1806C111APWST	KEMET	Z-PWS	110	4	14	1806 (4516 Metric)	Cut Tape (CT)	Obsolete	ROHS3 Compliant
FBMJ4516HM900-T	Taiyo Yuden	FB	90	4	14	1806 (4516 Metric)	Tape & Reel (TR)	Not For New Designs	ROHS3 Compliant
LSMCA451611T900RG	Taiyo Yuden	LSMC	90	4	14	1806 (4516 Metric)	Tape & Reel (TR)	Active	ROHS3 Compliant
Z1806C900BPWST	KEMET	Z-PWS	90	4	14	1806 (4516 Metric)	Cut Tape (CT)	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Electrical Replacement (110 Ohm Impedance):

FBMJ4516HS111-T is a Taiyo Yuden equivalent with identical electrical specifications and mechanical dimensions. However, this part carries "Not For New Designs" status, limiting its use to legacy system support or existing inventory management. The part remains ROHS3 compliant and maintains the same operating temperature range and moisture sensitivity level.

Z1806C111APWST is a KEMET alternative with matching 110 Ohm impedance and all electrical parameters. This part is classified as Obsolete, indicating discontinued manufacturing and limited availability. Use is restricted to applications where existing inventory exists or where cross-manufacturer qualification has been completed.

For Active Product Status with Identical Electrical Parameters:

LSMCC451611T111RG maintains Active product status, ensuring continued availability and manufacturing support. This is the primary recommendation for new designs and ongoing production.

For Alternative Impedance Selection (90 Ohm Impedance):

LSMCA451611T900RG is an Active product from Taiyo Yuden with 90 Ohm impedance specification. This part maintains all other electrical and mechanical parameters identical to the primary part. Selection of this alternative requires circuit-level confirmation that 90 Ohm impedance meets application requirements.

FBMJ4516HM900-T and Z1806C900BPWST are 90 Ohm alternatives with "Not For New Designs" and Obsolete status respectively. These parts are not recommended for new applications.

Packaging Format Considerations:

The primary part LSMCC451611T111RG is supplied in Cut Tape (CT) & Digi-Reel® format. FBMJ4516HS111-T and Z1806C111APWST maintain identical packaging. LSMCA451611T900RG is supplied in Tape & Reel (TR) format, requiring manufacturing process compatibility verification.

Frequently Asked Questions (FAQ)

Q: Can FBMJ4516HS111-T be used as a direct replacement for LSMCC451611T111RG?

A: FBMJ4516HS111-T provides electrical and mechanical equivalence with identical 110 Ohm impedance, 4A current rating, 14 mOhm DCR, and 1806 package dimensions. However, this part carries "Not For New Designs" status. Use is limited to legacy system support or existing inventory applications where continued Taiyo Yuden support is not required.

Q: What is the difference between the 110 Ohm and 90 Ohm substitute options?

A: The 110 Ohm parts (LSMCC451611T111RG, FBMJ4516HS111-T, Z1806C111APWST) provide identical impedance specification. The 90 Ohm parts (LSMCA451611T900RG, FBMJ4516HM900-T, Z1806C900BPWST) operate at a lower impedance value. All other electrical parameters (current rating, DCR, temperature range) remain identical. Circuit-level evaluation is required to determine if 90 Ohm impedance is acceptable for the application.

Q: Are there packaging format differences between substitute parts?

A: Yes. LSMCC451611T111RG, FBMJ4516HS111-T, and Z1806C111APWST are supplied in Cut Tape (CT) & Digi-Reel® or Cut Tape (CT) formats. LSMCA451611T900RG is supplied in Tape & Reel (TR) format. Manufacturing equipment compatibility with the selected packaging format must be confirmed before part selection.

Q: Why are some substitute parts marked "Not For New Designs" or "Obsolete"?

A: "Not For New Designs" indicates the manufacturer has discontinued active support but inventory may remain available. "Obsolete" indicates the part is no longer manufactured. These designations reflect manufacturer lifecycle status and do not indicate functional deficiency. Use of these parts is appropriate for legacy system maintenance or where existing inventory is available.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 compliant. All parts maintain Moisture Sensitivity Level 1 (Unlimited) and operate within the -40°C to 125°C temperature range.

Q: What is the primary recommendation for new designs?

A: LSMCC451611T111RG is the recommended selection for new designs. This part maintains Active product status, ensuring continued manufacturing support, availability, and design lifecycle compatibility. The part provides 110 Ohm impedance specification with all required electrical and mechanical parameters.

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