Ring iron core
Functional features：
High saturation magnetic induction intensity
High permeability
Low leakage, low noise
Low iron loss and low process coefficient
| Limit size | Minimum width（b-min） | Maximum width（b-max） | Minimum inner diameter（r-min） | Maximum inner diameter（r-max） | Maximum outer diameter（R-max） |
| 5mm | 30mm | 5mm | 1000mm | 1400mm | |
| Dimensional tolerance | Outer diameter（mm） | Inner diameter（mm） | Film width（mm） | ||
| R | △R | r | △r | △b | |
| 10-25 | ±0.1 | 10-25 | ±0.1 | 0.05 | |
| 25-100 | ±0.1 | 25-100 | ±0.1 | 0.05 | |
| 10.0-150 | ±0.2 | 10.0-150 | ±0.2 | 0.1 | |
| 150-320 | ±0.25 | 150-320 | ±0.25 | 0.1 | |
| 320-500 | ±0.25 | 320-500 | ±0.25 | 0.2 | |
| 500-800 | ±0.3 | 500-800 | ±0.3 | 0.2 | |
| 800以上 | ±0.3 | 800以上 | ±0.3 | 0.3 | |
Application area
Widely used in power transformers, current transformers, voltage transformers, voltage regulators, chokes
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