LLMGA160808T151RG Equivalent & Substitute Parts

Part Overview

The LLMGA160808T151RG is a 150 Ohm ferrite bead manufactured by Taiyo Yuden, designed for power line filtering applications in 0603 (1608 Metric) surface mount packages. This component operates at 100 MHz impedance with a maximum current rating of 2.1A and 50mOhm DC resistance. The part is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, manufacturer discontinuation, or specific performance optimization within the same functional category.

Key Parameters

Parameter	Value
Impedance @ Frequency	150 Ohms @ 100 MHz
Current Rating (Max)	2.1A
DC Resistance (DCR) (Max)	50mOhm
Package / Case	0603 (1608 Metric)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Number of Lines	1
Filter Type	Power Line
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LLMGA160808T151RG are categorized based on electrical and mechanical compatibility within the ferrite bead component class. The primary substitution criteria are:

Exact Electrical Match (150 Ohms @ 100 MHz): Parts maintaining identical impedance at 100 MHz with compatible current ratings and DC resistance specifications are classified as direct parametric equivalents. These include FBMH1608HM151-T and LSMGA160808T151RG from Taiyo Yuden, and FBH160808T-151Y-S from Cal-Chip Electronics.

Compatible Electrical Match (120 Ohms @ 100 MHz): Parts with 120 Ohm impedance at 100 MHz represent functional alternatives when circuit design permits impedance variation within acceptable tolerance bands. These include components from Pulse Electronics (BBHV00160808121Y00, BBUP00160805121Y00, BBUP00160808121Y00), Murata Electronics (BLM18KG121TN1D, BLM18SG121TN1D), Central Technologies (CTCB0603F-121P), and Laird-Signal Integrity Products (MI0603M121R-10).

All substitute parts maintain the 0603 (1608 Metric) package footprint, single-line configuration, surface mount capability, and ROHS3 compliance. Substitution validity depends on circuit impedance tolerance specifications and current delivery requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz	Current Rating (Max)	DCR (Max)	Operating Temperature	Product Status	Height (Max)
LLMGA160808T151RG	Taiyo Yuden	150 Ohms	2.1A	50mOhm	-40°C ~ 125°C	Active	0.035" (0.90mm)
FBMH1608HM151-T	Taiyo Yuden	150 Ohms	2.1A	50mOhm	-40°C ~ 125°C	Not For New Designs	0.035" (0.90mm)
LSMGA160808T151RG	Taiyo Yuden	150 Ohms	2.1A	50mOhm	-40°C ~ 125°C	Active	0.035" (0.90mm)
FBH160808T-151Y-S	Cal-Chip Electronics, Inc.	150 Ohms	3A	40mOhm	-55°C ~ 125°C	Active	0.037" (0.95mm)
BBHV00160808121Y00	Pulse Electronics	120 Ohms	3A	40mOhm	-55°C ~ 125°C	Active	0.037" (0.95mm)
BBUP00160805121Y00	Pulse Electronics	120 Ohms	3A	25mOhm	-55°C ~ 125°C	Active	0.026" (0.65mm)
BBUP00160808121Y00	Pulse Electronics	120 Ohms	3A	30mOhm	-55°C ~ 125°C	Active	0.037" (0.95mm)
BLM18KG121TN1D	Murata Electronics	120 Ohms	3A	30mOhm	-55°C ~ 125°C	Active	0.030" (0.75mm)
BLM18SG121TN1D	Murata Electronics	120 Ohms	3A	25mOhm	-55°C ~ 125°C	Active	0.026" (0.65mm)
CTCB0603F-121P	Central Technologies	120 Ohms	2.5A	50mOhm	-40°C ~ 125°C	Active	0.039" (1.00mm)
MI0603M121R-10	Laird-Signal Integrity Products	120 Ohms	2.5A	50mOhm	-40°C ~ 125°C	Active	0.031" (0.80mm)

Engineering Selection Recommendations

Tier 1 - Direct Electrical Equivalents (150 Ohms @ 100 MHz):

LSMGA160808T151RG (Taiyo Yuden) is the primary recommended substitute. This part maintains identical electrical specifications (150 Ohms @ 100 MHz, 2.1A, 50mOhm DCR) with Active product status and ROHS3 compliance. Inventory availability is 8715 units.

FBH160808T-151Y-S (Cal-Chip Electronics) provides an alternative with enhanced current capacity (3A) and lower DCR (40mOhm), with extended operating temperature range (-55°C to 125°C). This part is suitable for applications requiring higher current margins. Inventory availability is 40982 units.

FBMH1608HM151-T (Taiyo Yuden) matches all electrical parameters but carries "Not For New Designs" status. This part is suitable only for legacy system maintenance or existing design continuity.

Tier 2 - Compatible Electrical Alternatives (120 Ohms @ 100 MHz):

Parts with 120 Ohm impedance are applicable when circuit design specifications permit impedance variation. These components offer enhanced current ratings (3A) and improved DC resistance characteristics in many cases.

BLM18SG121TN1D (Murata Electronics) and BBUP00160805121Y00 (Pulse Electronics) both provide 120 Ohms @ 100 MHz with 3A current rating and 25mOhm DCR, representing optimal performance within the 120 Ohm category. Both maintain Active status and ROHS3 compliance with extended temperature range (-55°C to 125°C).

BLM18KG121TN1D (Murata Electronics) and BBUP00160808121Y00 (Pulse Electronics) provide 120 Ohms @ 100 MHz with 3A current rating and 30mOhm DCR, suitable for applications with moderate impedance tolerance.

CTCB0603F-121P (Central Technologies) and MI0603M121R-10 (Laird-Signal Integrity Products) maintain 120 Ohms @ 100 MHz with 2.5A current rating and 50mOhm DCR, matching the original part's current specification while offering impedance alternatives.

BBHV00160808121Y00 (Pulse Electronics) provides 120 Ohms @ 100 MHz with 3A current rating and 40mOhm DCR, with extended temperature range capability.

All recommended substitutes maintain 0603 (1608 Metric) package compatibility, single-line configuration, surface mount mounting type, and ROHS3 compliance status.

Frequently Asked Questions (FAQ)

Q: Can LSMGA160808T151RG be used as a direct replacement for LLMGA160808T151RG?

A: Yes. LSMGA160808T151RG maintains identical electrical specifications (150 Ohms @ 100 MHz, 2.1A maximum current, 50mOhm DCR), operating temperature range (-40°C to 125°C), package footprint (0603), and compliance certifications (ROHS3). Both parts are Active status products. The substitution is electrically and mechanically valid.

Q: What is the difference between 150 Ohm and 120 Ohm ferrite beads in this package?

A: The impedance value determines the filtering attenuation at 100 MHz. A 150 Ohm bead provides greater impedance and higher attenuation compared to a 120 Ohm bead. Substitution from 150 Ohms to 120 Ohms is valid only when circuit design specifications permit impedance variation within acceptable tolerance bands. The 120 Ohm alternatives typically offer higher current ratings (3A versus 2.1A) and lower DC resistance in many cases.

Q: Are all substitute parts compatible with the 0603 package footprint?

A: Yes. All listed substitute parts use the 0603 (1608 Metric) package case, ensuring mechanical compatibility with existing PCB layouts. Height variations exist (ranging from 0.026" to 0.039"), which may affect clearance in space-constrained applications. Verify height specifications against board design constraints.

Q: What does "Not For New Designs" status mean for FBMH1608HM151-T?

A: "Not For New Designs" indicates the manufacturer has designated this part for legacy support only. While electrically equivalent to LLMGA160808T151RG, this part should be used only for maintaining existing designs or systems already in production. New circuit designs should utilize Active status alternatives such as LSMGA160808T151RG or FBH160808T-151Y-S.

Q: Which substitute offers the lowest DC resistance?

A: BLM18SG121TN1D and BBUP00160805121Y00 both provide 25mOhm maximum DC resistance, representing the lowest values among listed substitutes. These parts are suitable for applications where minimizing resistive losses is critical.

Q: Can I use FBH160808T-151Y-S if my circuit requires exactly 150 Ohms @ 100 MHz?

A: Yes. FBH160808T-151Y-S maintains 150 Ohms @ 100 MHz impedance matching the original specification. This part additionally provides 3A current capacity (versus 2.1A) and 40mOhm DCR (versus 50mOhm), offering performance enhancement. Extended operating temperature range (-55°C to 125°C) provides additional margin compared to the original part's -40°C to 125°C range.

Q: What is the inventory status of recommended substitutes?

A: LSMGA160808T151RG has 8715 units in stock. FBH160808T-151Y-S has 40982 units available. Among 120 Ohm alternatives, BLM18SG121TN1D has 95100 units, BBUP00160808121Y00 has 72531 units, and BLM18KG121TN1D has 17800 units in stock. Inventory levels support immediate procurement for production requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, ensuring regulatory compatibility with environmental and hazardous substance restrictions. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all recommended substitutes.

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