U-Shield
Soft Ferromagnetic U-Shield
Designed for planar current sensing in combination with a Hall sensor, AMR sensor, and a busbar conductor. The U-Shield protects the sensor from parasitic magnetic fields caused by magnetic field sources.
U-Shield
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 Hall sensor, AMR sensor and a busbar 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.
What are Soft Ferromagnetic Shields?
Shields are additional components in a current sensor that protect the sensor from external magnetic field sources that disrupt operations. Made up of soft ferromagnetic materials to help magnetize flux frequencies that are desired while blocking the frequencies that are not inside the shield.
Some CTS shield designs utilize laminated materials. Our lamination designs use stacks of tightly bonded materials like iron, effectively preventing external flux from disrupting current operations.
Product Options
Core Material Options
- Nickel 48%
- Silicon <3.5%
- Amorphous Iron
- More Options with Customization
Laminate Options
- Material: Iron
- Thickness: 0.35mm
- More Options with Customization
Shield Specifications
| Parameter | Material | Value |
|---|---|---|
| Relative Permeability | Ni-Fe Si-Fe |
100'000 a.u. 40'000 a.u. |
| Initial Relative Permeability | Ni-Fe Si-Fe |
7000 a.u. 2500 a.u. |
| Saturation Flux Density | Ni-Fe Si-Fe |
1 T 1.5 T |
| Hysteresis | Ni-Fe Si-Fe |
2.8 A/m n/a |
| Curie Temperature | Ni-Fe Si-Fe |
450°C 700°C |
Example Dimensions
| Parameter | Value |
|---|---|
| Width | 12 - 25mm |
| Length | 13 - 26mm |
| Height | 12 - 15mm |
| Thickness | 0.8 - 1.5mm |
| Lamination Thickness | 0.5 - 1.5mm |
- Features
- Applications
- Technical Resources
- Designed for high-speed contactless current sensing
- Designed for high linearity and low hysteresis
- Soft ferromagnetic materials
- Enhances sensitivity and signal-to-offset ratio of the sensor
- Protects the sensor from parasitic magnetic
fields caused by nearby magnetic field sources - Many Shapes and Sizes
- Mounting with pins, SMD, screw, or crimping assemblies
- Laminated and amorphous shields
Current Sensors
Advanced Sensing Modules
Custom Electrified Systems
Automotive and Industrial Electrical Systems
Battery Monitoring
Collaborate With a Product Expert
CTS can design and deliver products that meet the unique requirements of your project. Work with a technical expert to begin your design today.
