LLMGA160808T331RG Equivalent & Substitute Parts

Part Overview

The LLMGA160808T331RG is a 330 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 1.2A and DC resistance of 130mOhm. The part is classified as 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 design requirements necessitate alternative electrical characteristics, or when supply chain optimization requires sourcing from multiple manufacturers. Substitute parts in this reference maintain compatibility with the original application through matching or superior electrical and mechanical parameters within the 0603 package form factor.

Key Parameters

Parameter	Value	Unit
Impedance @ 100 MHz	330	Ohms
Current Rating (Maximum)	1.2	A
DC Resistance (Maximum)	130	mOhm
Package / Case	0603 (1608 Metric)	—
Operating Temperature Range	-40°C to 125°C	—
Mounting Type	Surface Mount	—
Filter Type	Power Line	—
Number of Lines	1	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the LLMGA160808T331RG is determined by the following critical parameters:

Primary Matching Criteria:

Impedance @ 100 MHz: 330 Ohms (exact match required for frequency response characteristics)
Package / Case: 0603 (1608 Metric) (mandatory for PCB layout compatibility)
Number of Lines: 1 (single-line configuration)
Mounting Type: Surface Mount (assembly process compatibility)

Secondary Compatibility Criteria:

Current Rating (Maximum): Equal to or greater than 1.2A (ensures thermal and electrical performance)
DC Resistance (Maximum): Equal to or less than 130mOhm (maintains insertion loss characteristics)
Operating Temperature Range: Must encompass -40°C to 125°C or provide equivalent coverage
RoHS Status: ROHS3 Compliant (regulatory requirement)
Moisture Sensitivity Level: MSL 1 or equivalent (handling and storage compatibility)

Substitute parts meeting all primary criteria and maintaining or improving secondary parameters are classified as direct equivalents. Parts with impedance values of 300 Ohms at 100 MHz are included as parametric alternatives where current rating or DC resistance improvements may benefit circuit performance, though impedance deviation requires application-level verification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Impedance @ 100 MHz (Ohms)	Current Rating Max (A)	DC Resistance Max (mOhm)	Operating Temperature (°C)	Product Status	Height Max (mm)
LLMGA160808T331RG	Taiyo Yuden	330	1.2	130	-40 to 125	Active	0.90
FBMH1608HM331-T	Taiyo Yuden	330	1.2	130	-40 to 125	Not For New Designs	0.90
BBHV00160808331Y00	Pulse Electronics	330	2.0	80	-55 to 125	Active	0.95
BBHV00160808301Y00	Pulse Electronics	300	2.0	80	-55 to 125	Active	0.95
BBPY00160808331Y00	Pulse Electronics	330	1.5	120	-55 to 125	Active	0.95
BBPY00160808301Y00	Pulse Electronics	300	1.5	120	-55 to 125	Active	0.95
BBUP00160805331Y00	Pulse Electronics	330	1.5	70	-55 to 125	Active	0.65
BLM18KG331SN1D	Murata Electronics	330	1.7	80	-55 to 125	Active	0.95
BLM18SG331TN1D	Murata Electronics	330	1.5	70	-55 to 125	Active	0.65
CTCB0603F-331P	Central Technologies	330	1.5	120	-40 to 125	Active	1.00
CTCB0603F-301P	Central Technologies	300	2.0	100	-40 to 125	Active	1.00

Engineering Selection Recommendations

Direct Equivalents (330 Ohms @ 100 MHz, Active Status):

BBHV00160808331Y00 (Pulse Electronics) and BLM18KG331SN1D (Murata Electronics) are primary direct substitutes. Both maintain 330 Ohm impedance at 100 MHz, support equal or greater current ratings, and hold Active product status. BBHV00160808331Y00 provides superior DC resistance (80mOhm versus 130mOhm) and extended temperature range (-55°C to 125°C). BLM18KG331SN1D offers 1.7A current rating with 80mOhm DC resistance and Active status designation.

BBPY00160808331Y00 (Pulse Electronics) and CTCB0603F-331P (Central Technologies) are secondary direct equivalents with 330 Ohm impedance and Active status. Both provide reduced DC resistance (120mOhm) compared to the original specification. BBPY00160808331Y00 extends operating temperature to -55°C.

Low-Profile Alternatives (330 Ohms @ 100 MHz, Reduced Height):

BBUP00160805331Y00 (Pulse Electronics) and BLM18SG331TN1D (Murata Electronics) provide 330 Ohm impedance with significantly reduced height (0.65mm versus 0.90mm original). Both maintain Active status and offer improved DC resistance (70mOhm). These parts are suitable for space-constrained applications where height reduction is beneficial.

Parametric Alternatives (300 Ohms @ 100 MHz):

BBHV00160808301Y00 (Pulse Electronics) and CTCB0603F-301P (Central Technologies) provide 300 Ohm impedance at 100 MHz with improved current ratings (2.0A) and reduced DC resistance (80mOhm and 100mOhm respectively). These parts are suitable where impedance tolerance permits 300 Ohm operation and enhanced current handling is required.

Not Recommended for New Designs:

FBMH1608HM331-T (Taiyo Yuden) matches all electrical parameters but carries "Not For New Designs" product status. This designation indicates manufacturer discontinuation trajectory and should be avoided for new circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can BBHV00160808331Y00 directly replace LLMGA160808T331RG?

A: Yes. BBHV00160808331Y00 maintains identical impedance (330 Ohms @ 100 MHz), package (0603), and exceeds current rating (2.0A versus 1.2A) and temperature range (-55°C to 125°C versus -40°C to 125°C). DC resistance is superior at 80mOhm versus 130mOhm. Both are Active status products with ROHS3 compliance.

Q: What is the difference between 330 Ohm and 300 Ohm ferrite beads?

A: Impedance at 100 MHz differs by 30 Ohms, affecting frequency response and attenuation characteristics. The 330 Ohm specification provides greater impedance at the specified frequency. Substitution with 300 Ohm parts requires application-level verification that the reduced impedance does not compromise filtering performance.

Q: Why do some substitute parts have lower DC resistance?

A: DC resistance (DCR) represents insertion loss in the circuit. Lower DCR values (70mOhm to 80mOhm versus 130mOhm) reduce power dissipation and heat generation, improving efficiency. Parts with lower DCR are generally preferred when current ratings support the application.

Q: Are height differences significant for PCB assembly?

A: Height differences between 0.65mm and 1.00mm are significant for space-constrained designs. Parts with reduced height (0.65mm: BBUP00160805331Y00, BLM18SG331TN1D) are suitable for applications requiring minimal component profile. Standard height parts (0.90mm to 1.00mm) are suitable for conventional PCB layouts.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates the manufacturer is discontinuing the part and recommends against use in new circuit designs. Existing designs may continue using available inventory, but new implementations should select Active status alternatives to ensure long-term supply availability.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed in this reference are ROHS3 compliant. Compliance status is mandatory for regulatory requirements and is consistent across all recommended alternatives.

Q: Can I use a 1.5A-rated part in place of a 1.2A-rated part?

A: Yes, provided the application current does not exceed 1.2A. The 1.5A rating indicates the part can safely handle higher current if needed. Using a higher-rated component does not degrade performance in lower-current applications.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture exposure controls. The component does not require special drying or moisture-barrier packaging. All parts in this reference maintain MSL 1 or equivalent, ensuring consistent handling requirements.

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