EMI / RFI Shielding Elastomer and Rubber Shapes

Description

EMI/RFI shielding elastomer and rubber shapes are designed to block electromagnetic interference (EMI) and radio frequency interference (RFI) from affecting electronic devices. These materials are typically used to create a barrier that prevents unwanted electromagnetic signals from entering or exiting a device, thereby protecting sensitive electronic components from interference.

Working Principle

EMI/RFI shielding elastomers and rubber shapes work by providing a conductive path that absorbs and dissipates electromagnetic energy. These materials are often filled with conductive particles, such as metal or carbon, which allow them to conduct electricity and create a shield against electromagnetic fields. The conductive particles within the elastomer or rubber matrix form a continuous conductive path that blocks EMI/RFI by reflecting or absorbing the electromagnetic waves. This shielding is crucial for maintaining the integrity and performance of electronic devices, as it prevents interference that can lead to data loss, signal degradation, or malfunction.

Applications

EMI/RFI shielding elastomer and rubber shapes are used in a variety of applications where electromagnetic interference needs to be controlled. Specific examples include:

Electronic Enclosures: These materials are used to line the seams and openings of electronic enclosures to prevent EMI/RFI from entering or exiting the enclosure, protecting the internal components.
Communication Devices: In compact handheld electronics and communication devices, these materials help reduce interference at high frequencies, ensuring clear signal transmission.
Automotive Sensors: They are used in automotive camera sensors to minimize EMI noise and crosstalk, ensuring accurate sensor processing and communication.

Advantages over other Elastomer and Rubber Shapes

EMI/RFI shielding elastomers and rubber shapes offer several advantages over non-shielding elastomers and rubber materials:

Conductivity: The inclusion of conductive particles provides these materials with the ability to block electromagnetic interference, a feature not present in standard elastomers.
Durability: These materials are designed to withstand environmental conditions such as sunlight, water, and temperature variations, making them suitable for a wide range of applications.
Flexibility: They can conform to complex surfaces and shapes, providing effective shielding without compromising the design of the electronic device.

Limitations

Despite their advantages, EMI/RFI shielding elastomers and rubber shapes have some limitations:

Conductivity Limitations: While they offer good shielding capabilities, they may not provide complete protection against all frequencies of EMI/RFI, especially in applications requiring very high levels of shielding.
Material Degradation: Over time, exposure to harsh environmental conditions can degrade the material, potentially reducing its effectiveness in blocking EMI/RFI.

Considerations

When selecting EMI/RFI shielding elastomers and rubber shapes, several factors should be considered:

Initial Costs: The cost of these materials can be higher than standard elastomers due to the inclusion of conductive particles and specialized manufacturing processes.
Durability: Consider the environmental conditions the material will be exposed to, as this can affect its longevity and performance.
Replacement and Maintenance Costs: Over time, the material may need to be replaced due to wear and tear, so it's important to factor in potential maintenance costs.
Accuracy: Ensure that the material provides the necessary level of shielding for the specific application to avoid interference issues.

27 Results

Custom Silicon Rubber Coextrusions - Image

View Datasheet

Custom Silicon Rubber Coextrusions
from Fujipoly® America Corp.

Applications: RFI/EMI gaskets and shielding. Electrostatic discharge (ESD). Electrical and Electronic parts used in: - cameras - computers - switches - instrumentation - displays - controls. Complex shapes of silicone rubber consisting of different properties such as conductive and non-conductive... [See More]

Features: EMI / RFI Shielding Material
Form / Shape: Profile or Structural Shape

Chemical System: Silicone

High Performance, Fluorinated Synthetic Rubber Film, 16 Mil -- Viton - Image

High Performance, Fluorinated Synthetic Rubber Film, 16 Mil -- Viton
from Zippertubing Co. (The)

Viton is an extremely flexible Fluorinated Synthetic Rubber jacket material that has a soft rubber-like texture, outstanding fluid resistance and an operational temperature range from -29 to +200 ºC. Viton is an extremely rugged material that meets the requirements of Mil-R83248C, Type II,... [See More]

Features: EMI / RFI Shielding Material; Flame Retardant
Thickness: 0.0160

Form / Shape: Sheet or Film
Use Temperature: -20 to 392

MR11-0002-01 with PSA Backing
from MAST Technologies

MAST Technologies ’ Tuned Frequency Absorber product series is a thin magnetically loaded sheet stock. Tuned Frequency Absorbers, also known as resonant frequency absorbers, provide great reflection loss at a discrete frequency, typically offering 20dB of attenuation. Tuned Frequency Absorbers... [See More]

Features: EMI / RFI Shielding Material
Filler: Metal or MIM; 1