Ablefilm Sheet 5025e
At NEDC we die-cut and laser-cut many types of adhesives films. These films are often referred to as assembly films. This is because they are one part films that aid in the assistance of assembling larger assemblies such as circuit cards to heat sinks. One adhesive that stands apart is Ablefilm® 5025E™. This film is one of the most common converted at NEDC via laser-cutting or die-cutting. 5025E is an unsupported electrically/thermally conductive heat cured epoxy film that is used for bonding circuit boards to heat-sinks or other components. The epoxy film is used as a binder to hold the silver particles in place. The silver particles imparts its high level of electrical (X,Y, Z directions) conductivity. As a demonstration of this films high level of electrical conductivity, its volume resistivity reaches lower than .0005 ohms/cm.
Uses and Benefits of LOCTITE Ablefilm® 5025E™ Adhesive Film
Adhesive Films are used because of their inherent ability to control thickness, and cost per unit. The uses of 5025E™ is complemented by its benefits. The benefits of Ablefilm® 5025E™ include:
-Thin Uniform Bondline
-Providing EMI/RFI shielding
-Great thermal and electrical conductivity
-Quick cleanup/Ease of assembly
-Each adhesive preform is certified to MIL-STD-883, Method 5011
What is Military Specification MIL-STD-883 Method 5011?
Outgassing is a problem with adhesive films. To pass testing for MIL-STD-883, the product must produce less than 1% for outgassing when exposed to 200°C. Ablefilm® 5025E™ passes this tough requirement. Often, customers are looking for this requirement when selecting an adhesive preform material for their application when bonding PCBs, or other applications.
Availability of LOCTITE Ablefilm® 5025E™
These films are supplied in a neat format of sheeted goods. Sheets available depend on the thickness. This material is available in a few different thicknesses ranging from .002” to .006”. The thickness tolerance on this material is +/- .0005” below .003” and above is +/- .001”:
Nomenclature for LOCTITE Ablefilm® 5025E™
5025E has a number of thicknesses available so typically we see customers describe it as:
5025E-002
5025E-003
5025E-004
5025E-005
5025E-006
circuit card assembly
circuit card assembly
Cutting Options of Epoxy Adhesive Preforms
NEDC laser-cuts, and die-cuts Ablefilm® 5025E™ material. The shape of the preform is limited by the size of the sheet provided. NEDC oftentimes can hold tolerances as close as +/- .001’’-.002’’ on preforms of this material. In addition, NEDC commonly has stock of this material to sell full sheets, or completed epoxy preforms. Storage temperature of this film is 0° C. Its important to be cautious when storing this material that it isn’t materially lower than 0° C as the material will crack from being excessively cold. The color for this material is a dark tan. For more information on Ablefilm® 5025E™ or you believe you would have an application that 5025E™ would fit well in, please contact sales@nedc.com.