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Planar Cores

Product catalog summary

Overview: This document provides detailed specifications for various ferrite cores used in switching power supplies. The cores are categorized into different types such as EL, ELT, PQI, EIR, ER, and EI cores, each with specific dimensions and electrical characteristics.

Specifications: The document lists dimensions and electrical parameters for each core type. The AL-value, which is a measure of inductance, is specified at 1kHz, 0.5mA, and 100Ts. The document emphasizes that all specifications are subject to change without notice.

Core Types and Dimensions:

EL Cores: Dimensions range from 11x4 mm to 25x8.6 mm. Key parameters include AL-values and effective parameters like Ae (effective cross-sectional area) and Ve (effective volume).
ELT Cores: Similar to EL cores but with additional dimensions B1 and B2. They range from 11x3 mm to 25x8.6 mm.
PQI Cores: These cores have a cylindrical shape with dimensions specified for A1, A2, B, øC, D, E min., H, and I. They range from 16/7.8 mm to 26/12 mm.
EIR Cores: These are rectangular cores with dimensions specified for A1, B, C1, øD, E, F, H, A2, C2, and I. They range from 14/4.5/9 mm to 22/5.5/15 mm.
ER Cores: Similar to EIR cores but with different dimensions and configurations. They range from 14/4.5/9 mm to 25/5.5/18 mm.
EI Cores: These cores have a more complex shape with dimensions specified for A, B, C, D, E, F, H, I, and J. They range from 14/5/5 mm to 22/8/16 mm.

Electrical Characteristics: Each core type has specific electrical characteristics, including AL-values with and without air gaps. The document provides detailed tables for each core type, listing parameters such as C1 (core constant), e (effective length), Ae, Ve, Amin (minimum cross-sectional area), Acw (window area), and Wt (weight).

Material: The document specifies that only PC95 material is used for certain AL-values, indicating a focus on high-performance applications.

Conclusion: This technical document serves as a comprehensive guide for selecting ferrite cores for switching power supplies, providing essential specifications and parameters for various core types.

Catalog excerpts

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