Overview
The PII66NL Series of SMT (Surface Mount Technology) Power Inductors, presented by Pulse YAGEO Company, are shielded drum core inductors designed for compact, high-current applications. Featuring a maximum height of 3.8mm and a footprint size of 7.5mm x 7.5mm, these inductors are ideal for space-sensitive designs.
Features
Key features of the PII66NL Series include a wide inductance range of 0.44pH to 750uH, a current rating of up to 5.5A, and certification to the AEC-Q200 automotive standard. The operating temperature range is extensive, spanning from -40°C to +130°C, accommodating various environments and conditions.
Electrical Specifications
Electrical characteristics are detailed in an extensive table, which includes part numbers such as P1166.681NL through to P1166.1O5NL, indicating different inductance values, saturation currents, heating currents, DCR, and inductance tolerance. Note that inductance is measured at OAdc, and the inductance tolerance on indicated part numbers is ±30%; it is ±20% on all other parts. The SRF (Self-Resonant Frequency) of most inductors in this series exceeds 40MHz.
Physical Characteristics
Each inductor has a weight of 0.7 grams and is available in Tape & Reel packaging, with standard quantities of 1200 reels. Mechanical specifications and a suggested pad layout for the P1166.XXXNL parts are also provided, with dimensions in inches and standard tolerances. Additionally, optional Tape & Reel packaging can be ordered by adding a “T” suffix to the part number.
Compliance and Testing
All inductors in the PII66NL Series comply with the RoHS standard, indicated by the “NL” suffix in their part numbers. For non-RoHS-compliant equivalents, contact Pulse for availability. The components are tested at 100kHz and 0.1VAC unless specified otherwise. The rated current is determined by either the saturation current or the heating current, whichever is lower.
Thermal Considerations and Loss Calculations
Specific notes on handling high-voltage or ripple current applications are provided, where additional heating may necessitate current derating. Formulas for estimating temperature rise, total loss, copper loss, and core loss are detailed. Constants KO & KI, which are dependent on platform and material, are provided in the supporting tables for accurate loss calculations.
References:
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