Description
The U-Shield is a soft ferromagnetic shield featuring superior material characteristics such as high linearity and very low hysteresis.
The shield is designed for planar current sensing in combination with a magnetic field sensor, i.e. Hall sensor, AMR sensor and a bus-bar conductor.
The “U” Shield protects the sensor from parasitic magnetic fields caused by nearby conductors or other magnetic field sources while at the same time it enhances sensitivity and signal-to-offset ratio of the sensor.
PML collaborates for current sensor applications with Maglab and Melexis GmbH.
| Standard Sizes of U-shields | |||||
|---|---|---|---|---|---|
| Part Name | Drawing No. | Width [mm] |
Length [mm] |
Height [mm] |
Thickness [mm] |
| U12-13-12.5-0.8 | C-SH-007-R0 | 12 | 13 | 12.5 | 0.8 |
| U12-13-12.5-1.5 | C-SH-014-R0 | 12 | 13 | 12.5 | 1.5 |
| U20-13-15-1.5 | Z-C-SH-124-R0 | 20 | 13 | 15 | 1.5 |
| U20.5-10-12-1.5 | Z-C-SH-180-R0 | 20.5 | 10 | 12 | 1.5 |
| U25-15-15-1.5 | C-SH-009-R0 | 25 | 15 | 15 | 1.5 |
| U30-15-15-1.5 | Z-C-SH-125-R0 | 30 | 15 | 15 | 1.5 |
Magnetic Characteristics
| Magnetic Characteristics of U-shields | ||
|---|---|---|
| Parameter | Typical Value | Unit |
| Relative Permeability | 100,000 | a.u. |
| Initial Relative Permeability | 7000 | a.u. |
| Saturation Flux Density | 1 | T |
| Hysteresis | 2.8 | A/m |
| Curie Temperature | 450 | ºC |
Manufacturer:Electronic Components
Datasheet:C-SH-014-R0.pdf
