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LLMGA453232L681RG Equivalent & Substitute Parts
Part Overview
The LLMGA453232L681RG is a power line ferrite bead manufactured by Taiyo Yuden, designed for electromagnetic interference (EMI) suppression in electronic circuits. This 680 Ohm ferrite bead operates at 100 MHz and is housed in a 1812 (4532 Metric) surface mount package. The component is rated for 4A maximum current with a DC resistance of 28 milliohms and operates across the temperature range of -40°C to 125°C.
The LLMGA453232L681RG maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are necessary when the primary part experiences supply constraints, when alternative packaging formats are required, or when design flexibility across multiple manufacturers is needed while maintaining identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Impedance @ Frequency | 680 Ohms @ 100 MHz |
| Current Rating (Max) | 4A |
| DC Resistance (DCR) (Max) | 28 mOhm |
| Package / Case | 1812 (4532 Metric) |
| Operating Temperature Range | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Filter Type | Power Line |
| Number of Lines | 1 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the LLMGA453232L681RG is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for a part to function as a direct substitute:
- Impedance specification: 680 Ohms @ 100 MHz
- Current rating: 4A maximum
- DC resistance: 28 mOhm maximum
- Package type: 1812 (4532 Metric)
- Operating temperature range: -40°C to 125°C
- Mounting configuration: Surface mount
- Filter classification: Power line
- Number of lines: Single line (1LN)
All identified substitute parts meet these requirements. Variations in packaging format (Tape & Reel versus Cut Tape) and product lifecycle status do not affect electrical or mechanical compatibility. Manufacturer differences (Taiyo Yuden versus KEMET) are acceptable provided all parametric specifications align.
Parameter Comparison
| Parameter | LLMGA453232L681RG | FBMH4532HM681-T | LSMGA453232L681RG | Z1812C681BPWZT |
|---|---|---|---|---|
| Manufacturer | Taiyo Yuden | Taiyo Yuden | Taiyo Yuden | KEMET |
| Series | LLMG | FB | LSMG | Z-PWZ |
| Impedance @ Frequency | 680 Ohms @ 100 MHz | 680 Ohms @ 100 MHz | 680 Ohms @ 100 MHz | 680 Ohms @ 100 MHz |
| Current Rating (Max) | 4A | 4A | 4A | 4A |
| DC Resistance (DCR) (Max) | 28 mOhm | 28 mOhm | 28 mOhm | 28 mOhm |
| Package / Case | 1812 (4532 Metric) | 1812 (4532 Metric) | 1812 (4532 Metric) | 1812 (4532 Metric) |
| Size / Dimension | 0.177" L x 0.126" W (4.50mm x 3.20mm) | 0.177" L x 0.126" W (4.50mm x 3.20mm) | 0.177" L x 0.126" W (4.50mm x 3.20mm) | 0.177" L x 0.126" W (4.50mm x 3.20mm) |
| Height (Max) | 0.138" (3.50mm) | 0.138" (3.50mm) | 0.138" (3.50mm) | 0.138" (3.50mm) |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Filter Type | Power Line | Power Line | Power Line | Power Line |
| Number of Lines | 1 | 1 | 1 | 1 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Not For New Designs | Active | Obsolete |
| Packaging Format | Tape & Reel (TR) | Cut Tape (CT) & Digi-Reel® | Tape & Reel (TR) | Cut Tape (CT) |
Engineering Selection Recommendations
All four parts are electrically and mechanically equivalent and function as direct substitutes based on parametric specifications. Selection among these alternatives should be based on the following factors:
Primary Selection (Active Status): The LLMGA453232L681RG and LSMGA453232L681RG both maintain Active product status and are suitable for new designs. Both are manufactured by Taiyo Yuden and available in Tape & Reel packaging. The LSMGA453232L681RG represents an alternative Taiyo Yuden series option with higher current inventory availability (4,600 units versus 817 units).
Secondary Selection (Restricted Status): The FBMH4532HM681-T is designated as Not For New Designs but remains electrically equivalent. This part is available in Cut Tape and Digi-Reel packaging formats and carries substantial inventory (21,048 units). Use is limited to legacy system support or replacement applications where design changes are not feasible.
Tertiary Selection (Obsolete Status): The Z1812C681BPWZT from KEMET is classified as Obsolete. While electrically and mechanically equivalent, this part should be selected only when no other alternatives satisfy supply or packaging requirements. Inventory availability is limited (3,955 units).
All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and identical operating temperature specifications. Packaging format differences (Tape & Reel versus Cut Tape) do not affect electrical performance and should be selected based on assembly process requirements.
Frequently Asked Questions (FAQ)
Q: Can FBMH4532HM681-T replace LLMGA453232L681RG in new product designs?
A: The FBMH4532HM681-T is electrically and mechanically equivalent to the LLMGA453232L681RG. However, the FBMH4532HM681-T carries a "Not For New Designs" status. For new designs, select either the LLMGA453232L681RG or LSMGA453232L681RG, both of which maintain Active product status.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape packaging provides components on tape segments cut to specific lengths, typically used for lower-volume or manual assembly processes. Electrical and mechanical specifications remain identical regardless of packaging format.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All four parts (LLMGA453232L681RG, FBMH4532HM681-T, LSMGA453232L681RG, and Z1812C681BPWZT) are ROHS3 compliant and carry unlimited moisture sensitivity rating (MSL 1).
Q: Can I use Z1812C681BPWZT as a substitute despite its Obsolete status?
A: The Z1812C681BPWZT is electrically and mechanically equivalent and remains available in inventory. However, its Obsolete classification indicates discontinued manufacturing. Use this part only when other Active or Not For New Designs alternatives are unavailable and supply chain risk is acceptable.
Q: Do all substitute parts operate across the same temperature range?
A: Yes. All four parts operate across the identical temperature range of -40°C to 125°C and are rated for 4A maximum current with 28 milliohm DC resistance.
Q: Which substitute part offers the best inventory availability?
A: The FBMH4532HM681-T offers the highest inventory availability with 21,048 units in stock. The LSMGA453232L681RG provides the second-highest availability at 4,600 units. For Active status parts, the LSMGA453232L681RG is the preferred alternative when LLMGA453232L681RG inventory is constrained.
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