Overview of P11ZO/P1171 Series Power Inductors
The datasheet presents information on the P11ZO/P1171 Series of SMT Power Inductors designed by Pulse, a Technitrol company. These inductors are characterized by their shielded drum core design, ensuring minimal electromagnetic interference and a robust performance. This series complies with RoHS standards and features a compact footprint of 12.2mm x 12.2mm maximum with a height of up to 6.0mm.
Performance and Specifications
Electrical characteristics of these inductors are detailed, with inductance values ranging from 0.32µH to 750µH. The current rating for the series can reach up to 13A, indicating their capability to handle high power levels. Inductors’ operating temperatures are specified to range from -40°C to +130°C, allowing their use in varied environmental conditions.
Key parameters presented in the datasheet include Self-resonance Frequency (SRF) reaching up to 2.3MHz, DCR with typical and maximum values, Saturation Current (I_sat), and Core Loss measured at +40°C. Supplementary information includes critical notes on Mechanical Layout, Inductance Tolerance, and Suggested Pad Layout, relevant for the physical integration of the inductors into circuit designs.
Application and Usage Notes
The document provides essential notes that discuss operation in high voltage/time (Et) or ripple current applications, highlighting potential additional heating due to core losses. To estimate the temperature rise and ensure proper operation, both copper and core losses must be calculated. These losses influence the Temperature Rise and Core Loss Factors, denoted by ‘K0’ and ‘K1’ respectively, crucial for designing with these inductors.
Dedicated parts of the datasheet discuss methods to compute the rated current (I_rated), which represents the lower of the saturation current or the heating current figures identified through standardized testing. Saturation current (I_sat) is determined through pulse testing, while heating current (I_dc) is estimated based on a controlled temperature rise during a 30-minute endurance test.
Packaging and Ordering Information
Packaging options include standard and optional Tape & Reel packaging, with industry-standard Tape & Reel specification EIA-481 followed for convenience and compatibility. To comply with RoHS requirements, a ‘NL’ suffix can be added to the part number during ordering. Furthermore, diverse international contact points are provided for customer support, including offices in the USA, Germany, Singapore, Shanghai, China, and Taiwan.
Conclusions and Additional Documentation
The P11ZO/P1171 series is suitable for high-powered applications where shielded components are preferred or required. Engineers and designers are advised to review the detailed tables and notes, spanning pages 27 to 42, for comprehensive information on testing and individual part specifications. It is also recommended to test components within the actual system to ensure compatibility and proper temperature management during operation.
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