LB2518T331K TAIYO YUDEN Inductor (Inductors Chip) In Stock
Taiyo Yuden LB2518T331K is a 330 µH ferrite chip power inductor in a 1007 (2518 metric) case size with 9.1 Ω DC resistance. Designed for general-purpose power filtering and energy storage in compact SMD applications. Available from authorized distributors with worldwide shipping.
- Manufacturer
- TAIYO YUDEN
- Package
- Inductors Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- LB2518T331K Datasheet PDF
- Category
- Inductor
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 330 µH nominal inductance in a compact 1007 (2518 metric) chip package for power filtering and energy storage
- Ferrite core construction provides stable inductance across a wide frequency range with low core loss
- DC resistance of 9.1 Ω ensures predictable power dissipation characteristics for circuit design calculations
- RoHS-compliant (Pb-free) construction meets international environmental regulations for consumer and industrial electronics
Applications
The LB2518T331K is used in DC-DC converter output filters, EMI suppression circuits, and power supply energy storage stages in portable consumer electronics, IoT devices, and industrial sensor modules where compact 1007-size SMD inductors are required. Its 330 µH inductance value provides effective low-frequency noise filtering and energy buffering in switching power supplies operating at frequencies below 1 MHz. Engineers specify this ferrite chip inductor in designs that demand reliable SMT-compatible inductors with predictable electrical characteristics at moderate DC resistance levels.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 10Weeks |
| YTEOL | 5 |
| Case/Size Code | 1007 |
| Construction | Rectangular |
| Core Material | FERRITE |
| DC Resistance | 9.1Ω |
| Inductance-Nom (L) | 330 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Height | 1.8mm |
| Package Length | 2.5mm |
| Package Style | SMT |
| Package Width | 1.8mm |
| Packing Method | TR, EMBOSSED, 7 INCH |
| Rated Current-Max | 0.03A |
| Self Resonance Frequency | 4.5MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | NO |
| Special Feature | DCR IS MEASURED AT 30% TOLERANCE |
| Surface Mount | YES |
| Terminal Finish | Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Test Frequency | 0.796MHz |
| Tolerance | 10% |
| Package | Inductors Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What inductance value and DC resistance does the LB2518T331K provide for power circuit design?
The LB2518T331K provides a nominal inductance of 330 µH with a DC resistance of 9.1 Ω. These parameters are important for calculating power dissipation and efficiency in DC-DC converter output filters; at a given load current, the 9.1 Ω DCR will determine the voltage drop and heat generation across the inductor, which designers must account for in thermal and efficiency budgets.
What package size does the LB2518T331K use and how does it benefit compact PCB designs?
The LB2518T331K uses a 1007 case size (2.5 x 1.8 mm metric footprint), which is a compact SMD chip package well-suited for space-constrained PCB layouts. This small form factor allows placement in dense power management circuits on portable devices, wearable electronics, and IoT sensor nodes where PCB area is limited and a 330 µH inductor must be accommodated within a tight component budget.
For which switching frequency ranges is the LB2518T331K 330 µH ferrite inductor most effective?
The LB2518T331K ferrite core inductor is most effective in switching power supply applications operating at frequencies typically below 500 kHz, where the 330 µH inductance provides significant impedance to ripple currents. At higher switching frequencies, inductance may decrease due to ferrite core characteristics, so engineers should verify the inductance-vs-frequency curve in the Taiyo Yuden datasheet to confirm suitability above 100 kHz operating points.
How does the LB2518T331K compare to wire-wound inductors for general-purpose power filtering?
As a ferrite chip inductor, the LB2518T331K offers the advantage of automated SMT assembly compatibility and a self-contained rectangular 1007 package versus wire-wound inductors that may require larger footprints or manual placement. The 9.1 Ω DC resistance is higher than many low-DCR wire-wound alternatives, so it is better suited for low-current filtering applications rather than high-current power rails above 50 mA where I²R losses would be significant.
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