ELL8TP680MB Panasonic Inductor (Other) In Stock
Panasonic ELL8TP680MB is a shielded wire-wound SMD power inductor with 68 µH inductance, 1300 mA rated current, and 0.14 Ω DCR in a compact 3131 case size. Available from stock worldwide.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- ELL8TP680MB 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
- 68 µH inductance with ±20% tolerance and 1300 mA rated DC current for power conversion stages
- Ultra-low 0.14 Ω DC resistance minimizing conduction losses in DC-DC converter output filters
- Shielded ferrite-core wire-wound construction in 3131 SMD case for low EMI and stable inductance
Applications
The ELL8TP680MB is suited for output filter inductors in DC-DC buck or boost converters, energy storage chokes in portable power supplies, and EMI filtering stages in industrial and consumer electronics. Its 1300 mA current rating and 68 µH inductance make it effective in low-frequency switching regulators and battery-powered devices requiring compact, low-loss energy storage elements.
Specifications
| YTEOL | 0 |
| Case/Size Code | 3131 |
| Construction | Rectangular |
| Core Material | FERRITE |
| DC Resistance | 0.14Ω |
| Inductance-Nom (L) | 68 µ H |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Height | 4.7mm |
| Package Length | 8mm |
| Package Style | SMT |
| Package Width | 8mm |
| Packing Method | TR, Embossed |
| Rated Current-Max | 1.3A |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Special Feature | DCR MEASURED AT 20 % TOLERANCE |
| Surface Mount | YES |
| Terminal Finish | Tin (Sn) |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Test Frequency | 0.1MHz |
| Tolerance | 20% |
| Package | Other |
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 is the inductance and current rating of the ELL8TP680MB, and what switching applications does it target?
The ELL8TP680MB provides 68 µH inductance with ±20% tolerance and supports a rated DC current of 1300 mA. These specifications make it well suited for output chokes in DC-DC buck converters operating at switching frequencies between 50 kHz and 500 kHz, as well as energy storage inductors in boost regulators for LED drivers and portable consumer electronics.
How does the 0.14 Ω DCR of ELL8TP680MB affect efficiency in a 5V DC-DC converter design?
With a DC resistance of 0.14 Ω at 1300 mA rated current, the ELL8TP680MB dissipates approximately 0.24 mW of conduction loss at full load, keeping inductor I2R losses minimal in a 5V converter. This low DCR is achievable because of the wire-wound construction on a ferrite core, which maintains high inductance density without sacrificing efficiency compared to higher-resistance alternatives.
Does the shielded construction of ELL8TP680MB reduce radiated EMI in sensitive analog circuits nearby?
Yes, the ELL8TP680MB uses a shielded ferrite-core construction that contains the magnetic flux within the core body, significantly reducing stray magnetic field radiation compared to an unshielded inductor of the same 68 µH value. This is especially important in mixed-signal PCB layouts where a power inductor operating at 100 kHz to 300 kHz would otherwise induce noise into adjacent ADC or audio signal paths.
What SMD case size does ELL8TP680MB use, and how does that compare to a through-hole 68 µH inductor in board space?
The ELL8TP680MB uses a 3131 SMD case (approximately 3.1 mm x 3.1 mm footprint), enabling reflow soldering and occupying a fraction of the PCB area required by an equivalent through-hole 68 µH inductor. In designs targeting miniaturized power modules or multi-layer PCBs with components on both sides, this compact footprint allows placement closer to the switching regulator IC, reducing parasitic inductance in the power loop.
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