What is the difference between conductive foam and conductive sponge?

What is the difference between conductive foam and conductive sponge?

 

conductive foam

The conductive foam wraps the conductive cloth on the flame-retardant sponge. After a series of treatments, it has good surface conductivity and can be easily fixed on the device to be shielded with adhesive tape. Shielding materials with different cross-sectional shapes, installation methods, UL ratings and shielding effectiveness are available.

 

Introduction to the role of conductive foam

Conductive foam can be divided into: aluminum foil cloth foam, conductive fiber cloth foam, gold-plated cloth foam, carbon-plated cloth foam, etc.

 

Conductive Foam Features and Benefits

• RoHS Compliant

• Improved Z-axis resistivity increases shielding effectiveness to over 90dB over a wide frequency range

•Applicable thickness 0.039"(1mm), 0.060"(1.5mm), 0.079"(2mm), 0.098"(2.5mm), 0.125"(3.2mm), •width can reach 0.250"(6.4mm)

• Wide range of compression, up to 60% of the original thickness

• Also has UL94 HB and V0 flame retardant grades

• Available in a variety of standard configurations, including D-subs, USB port, IEEE 1394, SCSI and RJ 11. (Also suitable for sheet and rectangular form factors)

• Can be die cut to desired shape

•Die cut I/O, rectangular pads and panel pads are available with or without conductive adhesive backing

• Low residual deformation ensures long-term performance of the product

 

Conductive foam is widely used in PDP TVs, LCD monitors, LCD TVs, mobile phones, notebook computers, MP3, communication cabinets, medical equipment and other electronic products, as well as military, aerospace, etc.

Conductive sponge

The conductive sponge is produced by polymer composite foaming technology, and the foaming pore size is uniform. soft. Flexible. The uniform distribution of the non-desquaking conductive sponge can protect the pins of the device, and at the same time has corrosion resistance, it is an ideal dielectric material for long-term storage of devices.

At the same time, the conductive sponge has the characteristics of long conduction period, and the conductive sponge is not affected by temperature and humidity, and the surface resistance value can be customized according to the actual use. There are two types of high density and low density.

High density: used for testing, inserting integrated circuits, and can be used as conductive and antistatic packaging materials with high requirements

Low density: used for electronic product packaging with shock-proof and anti-static requirements

Conductive sponge surface resistance: ≤103-5Ω

Anti-static sponge surface resistance: ≤1011Ω

 

Classification by product use

Conductive foam board, conductive foam strip, conductive foam tube, conductive foam die-cutting punch

 

Scope of application

Conductive sponge is widely used in: computers, LCD monitors, LCD TVs, laser printers, high-speed copiers, communication equipment, mobile phones, satellite communications, medical equipment, etc.

High pressure machine test. Instrumentation. Gaskets / partitions. Plug-in electronic products. Shockproof conductive packaging.