3M 1170 CIRCLE-0.5"-250

RFI and EMI shielding and absorbing materials are used in countless ways to protect sensitive electronics from the damaging effects of electromagnetic interference. 3M 1170 CIRCLE-0.5"-250 is one such material, and it is widely used for radiofrequency interference (RFI) and electromagnetic interference (EMI) shielding and absorption. It offers excellent EMI and RFI protection and performs in a wide range of temperatures, making it an ideal choice for many applications.

3M 1170 CIRCLE-0.5"-250 is a single-ply electrically conductive copperized polyester film. It comprises of two to four layers of high-efficiency copper film, polymer backing, adhesive, and plastic liner. Its electrical properties are maintained over a temperature range of -55°C to +125°C. Some of the best features of this material are its low cost, mechanical stability, and low-friction surface finish.

3M 1170 CIRCLE-0.5"-250 has a high shielding effectiveness of greater than 95dB in the frequency range of 0 to 15GHz, making it an incredibly effective material for suppressing EMI and RFI. Its extremely low resistance offers excellent electrical conductivity which provides effective paths for grounding. It also has an effective shielding against both radiated and conducted emissions, providing superior protection against the damaging effects of EMI and RFI.

The primary application field of 3M 1170 CIRCLE-0.5"-250 is in the fields of electronics and communications where shielding against EMI and RFI is of utmost importance. It is ideal for use in aerospace, military, automotive, communications, and medical applications because of its lightweight yet durable construction and excellent shielding effectiveness. It can also be used in shielded cables, modules for computers and phones, RF shielding enclosures, and even in aircraft structures. Its diverse applications, combined with its high shielding effectiveness, make it an ideal choice for many industrial applications.

The working principle of 3M 1170 CIRCLE-0.5"-250 is based on its electrical conductivity. The material is composed of two-to-four layers of excellent conductivity copper film which provide shielding to the EMI and RFI signals and allow them to be grounded. Its copperized polyester film further enhances its effective shielding effectiveness. When EMI and RFI signals come in contact with the material, they are either reflected or absorbed, thus preventing them from having any damaging effects on the sensitive electronics. The high shielding effectiveness of the material makes it suitable for use in a wide range of applications. Furthermore, its low resistance ensures that it is maintenance-free and offers superior protection.

In conclusion, 3M 1170 CIRCLE-0.5"-250 is a highly effective, low cost, and low maintenance RFI and EMI shielding and absorbing material. Its effectiveness in a broad temperature range makes it suitable for all kinds of industrial and electronic applications. It provides excellent shielding against both radiated and conducted emissions of EMI and RFI signals, thus preventing damage to any sensitive electronics. Its high shielding effectiveness and low resistance ensure that it is one of the best materials for shielding and absorption purposes.