ELC18B121L Panasonic Inductor (Other) In Stock
The ELC18B121L is a Panasonic wirewound ferrite core power inductor rated at 120 µH, 10% tolerance, with a 3 A rated current and 65 mΩ DC resistance. Cylindrical RDL construction with 1 mm lead diameter is designed for low-frequency power filtering at 10 kHz. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- ELC18B121L Datasheet PDF
- Category
- Inductor
- Price
- From $1.3300(MOQ 125)
- Temp Range
- -20.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ELC18B121L?
- 120 µH inductance at 10 kHz with ferrite core construction delivering effective EMI suppression and power line filtering
- 3 A rated current handling with only 65 mΩ DC resistance (DCR), minimizing power dissipation in power supply filter stages
- Cylindrical wirewound RDL package with 1 mm lead diameter for reliable through-hole mounting in power conversion circuits
What is ELC18B121L used for?
The ELC18B121L is commonly used in DC-DC converter input/output filtering, power line choke applications, and low-frequency EMI suppression circuits where a 120 µH ferrite inductor with 3 A current capacity is needed. It is also suitable for industrial power supplies, motor drive input filters, and energy storage circuits operating at frequencies up to 10 kHz.
What are the specifications of ELC18B121L?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Construction | Cylindrical |
| Core Material | FERRITE |
| DC Resistance | 0.065Ω |
| Inductance-Nom (L) | 120 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e2 |
| Lead Diameter | 1mm |
| Lead Length | 5mm |
| Lead Spacing | 7.5mm |
| Number of Functions | 1 |
| Package Diameter | 16mm |
| Package Length | 27mm |
| Package Style | Radial |
| Rated Current-Max | 3A |
| Shape/Size Description | CYLINDRICAL PACKAGE |
| Shielded | NO |
| Special Feature | DC RESISTANCE IS MEASURED AT 20% TOLERANCE |
| Surface Mount | NO |
| Terminal Finish | Tin/Copper (Sn/Cu) |
| Terminal Placement | RADIAL |
| Terminal Shape | WIRE |
| Test Frequency | 0.01MHz |
| Tolerance | 10% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
Where can I find the ELC18B121L datasheet?
ELC18B121L Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ELC18B121L?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the inductance and current ratings of the ELC18B121L?
The ELC18B121L offers 120 µH inductance at 10 kHz with a 10% tolerance and a rated DC current of 3 A. Its DC resistance is only 65 mΩ, keeping power losses minimal in power supply filtering and choke applications across operating temperatures.
For which power supply filter configurations is the ELC18B121L best suited?
The ELC18B121L is optimized for low-frequency power line filtering and DC-DC converter input/output chokes, particularly at frequencies around 10 kHz. The 120 µH ferrite core provides significant impedance to ripple current at these frequencies, supporting stable voltage rail performance in industrial and consumer power systems.
How does the ELC18B121L's 65 mΩ DCR benefit designs with tight efficiency requirements?
At 3 A full rated current, the 65 mΩ DCR of the ELC18B121L results in only 585 mW of conduction loss, which is relatively low for a 120 µH wirewound inductor. This makes it suitable for efficiency-sensitive power supplies where inductor losses directly affect overall system efficiency and thermal management.
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Why Buy from FindMyChip
About Panasonic
Panasonic is a leading electronic component manufacturer. FindMyChip sources Panasonic ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 125+ | $1.5900 | $198.75 |
| 500+ | $1.4500 | $725.00 |
| 1000+ | $1.3300 | $1330.00 |
In Stock · 24h Response · Worldwide Shipping
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