LLMGA201208T800RG Equivalent & Substitute Parts

Part Overview

The LLMGA201208T800RG is a power line ferrite bead manufactured by Taiyo Yuden, designed for electromagnetic interference suppression in electronic circuits. This component operates at 80 Ohms impedance at 100 MHz with a maximum current rating of 2.7A and is housed in a 0805 (2012 Metric) surface mount package. The part maintains Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer improved specifications, or when design requirements necessitate enhanced performance characteristics such as higher current ratings or lower DC resistance values.

Key Parameters

Parameter	Value
Impedance @ Frequency	80 Ohms @ 100 MHz
Current Rating (Max)	2.7A
DC Resistance (DCR) (Max)	25mOhm
Operating Temperature Range	-40°C ~ 125°C
Package / Case	0805 (2012 Metric)
Mounting Type	Surface Mount
Number of Lines	1
Filter Type	Power Line
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LLMGA201208T800RG is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

Impedance @ 100 MHz: 80 Ohms (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Number of Lines: 1 (exact match required)
Mounting Type: Surface Mount (exact match required)

Compatible Parameters for Substitution:

Current Rating (Max): Equal to or greater than 2.7A
DC Resistance (DCR) (Max): Equal to or less than 25mOhm
Operating Temperature Range: Must encompass -40°C ~ 125°C minimum
RoHS Status: ROHS3 Compliant (required)
Moisture Sensitivity Level (MSL): 1 (Unlimited) or equivalent

Acceptable Variations:

Filter Type: Power Line or Power, Signal Line (broader application scope acceptable)
Manufacturer: Different manufacturers permitted if all critical parameters match
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (both acceptable for surface mount assembly)

Parts that deviate from critical parameters or fail to meet compliance requirements are not suitable substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DCR (Max)	Operating Temperature	Package / Case	Product Status	RoHS Status
LLMGA201208T800RG	Taiyo Yuden	80 Ohms	2.7A	25mOhm	-40°C ~ 125°C	0805 (2012 Metric)	Active	ROHS3 Compliant
FBMH2012HM800-T	Taiyo Yuden	80 Ohms	2.7A	25mOhm	-40°C ~ 125°C	0805 (2012 Metric)	Not For New Designs	ROHS3 Compliant
LSMGA201208T800RG	Taiyo Yuden	80 Ohms	2.7A	25mOhm	-40°C ~ 125°C	0805 (2012 Metric)	Active	ROHS3 Compliant
74279220800	Würth Elektronik	80 Ohms	4A	18mOhm	-55°C ~ 125°C	0805 (2012 Metric)	Active	ROHS3 Compliant
HI0805R800R-10	Laird-Signal Integrity Products	80 Ohms	5A	10mOhm	-40°C ~ 125°C	0805 (2012 Metric)	Active	ROHS3 Compliant
ILHB0805ER900V	Vishay Dale	90 Ohms	5A	25mOhm	-55°C ~ 125°C	0805 (2012 Metric)	Active	ROHS3 Compliant
Z0805C800BPWZT	KEMET	80 Ohms	2.7A	25mOhm	-40°C ~ 125°C	0805 (2012 Metric)	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications):

LSMGA201208T800RG (Taiyo Yuden) is a direct substitute with identical electrical and mechanical specifications. This part maintains Active product status and is recommended for new designs requiring the exact performance profile of the LLMGA201208T800RG.

Z0805C800BPWZT (KEMET) matches all critical electrical and mechanical parameters but carries Obsolete product status. This part is suitable only for legacy system maintenance or when existing inventory is available.

FBMH2012HM800-T (Taiyo Yuden) provides identical specifications but is designated Not For New Designs. This part is acceptable for replacement in existing applications but should not be selected for new product development.

Enhanced Performance Substitutes (Superior Specifications):

74279220800 (Würth Elektronik) exceeds the current rating requirement (4A versus 2.7A) and provides superior DC resistance (18mOhm versus 25mOhm). This part extends the operating temperature range to -55°C ~ 125°C and maintains Active product status. Selection of this part provides design margin for current-limited applications.

HI0805R800R-10 (Laird-Signal Integrity Products) offers the highest current rating (5A) and lowest DC resistance (10mOhm) among all substitutes. This part maintains Active product status and is suitable for applications requiring maximum thermal performance and current capacity.

Non-Recommended Substitutes:

ILHB0805ER900V (Vishay Dale) deviates from the critical impedance specification (90 Ohms versus 80 Ohms). Although this part offers superior current rating and lower DC resistance, the impedance variance disqualifies it as a direct substitute for circuits designed around 80 Ohm impedance characteristics.

Frequently Asked Questions (FAQ)

Q: Can LSMGA201208T800RG be used as a direct replacement for LLMGA201208T800RG?

A: Yes. LSMGA201208T800RG is a direct substitute with identical impedance (80 Ohms @ 100 MHz), current rating (2.7A), DC resistance (25mOhm), operating temperature range (-40°C ~ 125°C), and package specification (0805 2012 Metric). Both parts are Active status and RoHS3 compliant.

Q: What is the difference between the Taiyo Yuden FBMH2012HM800-T and LLMGA201208T800RG?

A: Electrical and mechanical specifications are identical. The primary difference is product status: FBMH2012HM800-T is designated Not For New Designs, while LLMGA201208T800RG maintains Active status. FBMH2012HM800-T is acceptable for replacement in existing applications only.

Q: Why is ILHB0805ER900V not recommended as a substitute?

A: ILHB0805ER900V operates at 90 Ohms impedance at 100 MHz, compared to the required 80 Ohms specification. This 10 Ohm variance represents a 12.5% deviation from the design specification and will alter circuit performance characteristics. Impedance is a critical parameter that cannot be varied without circuit redesign and validation.

Q: Which substitute offers the best performance improvement?

A: HI0805R800R-10 provides the most significant performance enhancement with 5A current rating (versus 2.7A), 10mOhm DC resistance (versus 25mOhm), and Active product status. This part is suitable for applications requiring maximum thermal efficiency and current capacity while maintaining the required 80 Ohm impedance specification.

Q: Are there packaging differences between substitute parts?

A: Yes. LLMGA201208T800RG, LSMGA201208T800RG, FBMH2012HM800-T, and ILHB0805ER900V are supplied in Tape & Reel (TR) format. 74279220800 and HI0805R800R-10 are supplied in Cut Tape (CT) & Digi-Reel® format. Both packaging formats are compatible with standard surface mount assembly equipment. Z0805C800BPWZT is supplied in Cut Tape (CT) format.

Q: Can 74279220800 be used in applications with lower current requirements?

A: Yes. 74279220800 is rated for 4A maximum current, which exceeds the 2.7A requirement of LLMGA201208T800RG. The higher current rating does not prevent use in lower-current applications. The superior DC resistance (18mOhm versus 25mOhm) provides additional thermal performance margin.

Q: What is the moisture sensitivity level (MSL) requirement for substitution?

A: LLMGA201208T800RG specifies MSL 1 (Unlimited). All recommended substitutes maintain MSL 1 (Unlimited) or equivalent ratings, ensuring compatibility with standard PCB assembly and storage procedures without additional moisture control requirements.

Q: Is the operating temperature range critical for substitution?

A: The LLMGA201208T800RG operates from -40°C ~ 125°C. Substitute parts must encompass this range as a minimum. 74279220800 and ILHB0805ER900V extend the lower temperature limit to -55°C, providing additional margin for extreme environment applications. This extended range does not prevent use in standard -40°C ~ 125°C applications.

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