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LOCTITE ABLESTIK 5025E

Harmonization Code : 3920.99.28.90 | Other plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials ; Of other plastics ; Other; Other

Main features

Thin, uniform bondline control
Electrically conductive in x,y,z axes
Excellent electrical and thermal conductivity

Product Description

LOCTITE ABLESTIK 5025E unsupported epoxy adhesive film is ideal for bonding "hot" devices and printed circuits onto heat sinks in applications where electrical insulation is not required. By leveraging a precise heat and pressure process it achieves a void free connection.

LOCTITE ABLESTIK 5025E passes NASA outgassing standards. It is available in die cut preforms or sheet stock and is only available with 5011 certification.

Directions for use

LOCTITE ABLESTIK 5025E adhesive film is unsupported.
Handle carefully to avoid any stretching or flexing when frozen.
It may be helpful during handling to keep at least one sheet of release paper attached.
Preheat surface to be bonded to approximately 45°C.
Remove release paper from one side of the adhesive film.
Apply film to one of the bonding surfaces.
Remove any trapped air by pressing on the surface
Allow device to cool to room temperature.
Remove the release paper from the other side of the adhesive film. Attach the remaining adherent.
Apply spring loaded clamp or dead weight to provide continuous pressure of at least 2 to 10 psi during cure cycle.
Place assembly in a preheated oven and cure at the recommended cure schedule.

Technical Specifications

General Properties

Shelf Life Shelf Life Shelf life is the amount of time after manufacturing that a product is guaranteed to retain its properties. It differs vastly per product and it is based on temperature and storage conditions. The properties can be guaranteed for the temperature and time range indicated on the TDS since those are the ones tested to be the best for the product.
Shelf Life @ 5°C	183 days

Work life @25°C

Work life @25°C
Work life is the amount of time we have to work with a material until it is no longer able to be easily worked and applied on a substrate.

It is based on the change in viscosity and it can rely on the application requirements.

2184 hours

Chemical Properties

Extractable Ionic Content, after 20 hours
Chloride (Cl-) Chloride (Cl-) The amount of Chloride (Cl-) ion extracted from the product in parts per million (ppm)	50 ppm
Sodium (Na+) Sodium (Na+) The amount of Sodium (Na+) ion extracted from the product in parts per million (ppm)	30 ppm
Potassium (K+) Potassium (K+) The amount of Potassium (K+) ion extracted from the product in parts per million (ppm)	5 ppm

Mechanical Properties

Tensile Modulus Tensile Modulus Tensile modulus is a mechanical property that measures the stiffness of an elastic material. It is the slope of stress / strain curve of a material under direct tensile loading. It can be used to predict the elongation or elastic deformation of an object as long as the stress is less than the tensile strength of the material. Elastic deformation is caused by stretching the bonds between atoms and the deformation can be reversed when the load is removed. Tensile modulus is affected by temperature and is an important engineering attribute since we generally want to keep elastic deformation as small as possible.
Tensile Modulus @25°C	3,700 N/mm2
Tensile Modulus @150°C	49 N/mm2
Tensile Modulus @250°C	28 N/mm2
Tensile Modulus @-65°C	5,400 N/mm2

Die Shear Strength Die Shear Strength Die Shear Strength is the force that has to be applied to the side of the semiconductor die before it shears from its mounting. Shear strength is measured for various die sizes, substrates and operating temperatures so check the Technical data sheet for your intended usage.
2x2mm @25°C	13 kg-f

Electrical Properties

Volume Resistivity

Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.

5.0x10^-4 Ohms⋅cm

Thermal Properties

Glass Transition Temperature (Tg)

Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.

The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.

90 °C

Thermal Conductivity

Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance.

Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.

6.5 W/m.K

Coefficient of Thermal Expansion (CTE) Coefficient of Thermal Expansion (CTE) CTE (Coefficient of thermal expansion) is a material property that is indicative of the extent to which a material expands with a change in temperature. This can be a change in length, area or volume, depending on the material. Knowing the CTE of the layers is helpful in analyzing stresses that might occur when a system consists of an adhesive plus some other solid component.
Coefficient of Thermal Expansion (CTE), α1 Coefficient of Thermal Expansion (CTE), α1 CTE α1 (alpha 1) is the slope of the Coefficient of thermal expansion in a temperature range below the Glass transition temperature (Tg). It explains how much a material will expand until it reaches Tg.	65 ppm/°C
Coefficient of Thermal Expansion (CTE), α2 Coefficient of Thermal Expansion (CTE), α2 CTE α2 (alpha 2) is the slope of the Coefficient of thermal expansion in a temperature range above the Glass transition temperature (Tg). It explains the extent to which a material will expand after it passes Tg.	150 ppm/°C

Additional Information

Pricing & Availability

Pricing for LOCTITE ABLESTIK 5025E
Volume Price Breaks can be seen for each product by clicking on its respective link under the DESCRIPTION column and looking to the volume price break table to the right of the product image. Price per unit is reflected in this table and used during checkout. CAPLINQ lists all its prices without taxes, shipping payment charges or discounts. CAPLINQ has entities in Canada and the Netherlands, and if your shipping address is one of these two countries, applicable taxes will be applied. If your shipping address is to the United States, we request your company?s Employer Identification Number (EIN) or Tax Identification Number (TIN). This is a unique 9-digit number assigned by the IRS and is required for all cross-border shipments. Failure to provide this number could result in delays to your order. If your shipping address is within the EU, but outside the Netherlands, then we are required to request your company's Value Added Tax (VAT, BTW, MwSt) number to be able to ship the goods tax-free. For all other countries, no taxes are levied on your orders. DON'T LIKE THESE PRICES? Tell us what you will pay for what order quantity. Shipping Charges for LOCTITE ABLESTIK 5025E All prices shown are ex-works CAPLINQ, but during the checkout process, you will be given several shipping options including Canada Post, TNT, UPS or the choice of using your own freight forwarder. Depending on your shipping address, the shipping charges will be calculated as follows: Europe, Middle East, Asia and Africa: Shipping from CAPLINQ Netherlands (Amsterdam) Canada, USA, Mexico and South America: Shipping from CAPLINQ Canada (Ottawa) Payment option for LOCTITE ABLESTIK 5025E During the checkout process, you will be presented with several payment options including: Credit Card (We accept VISA and Mastercard) Bank Transfer (You will be given the payment instructions at the time of order placement) PayPal (Where you can also pay with American Express Cards) Purchase Order (You must be preapproved first. See our Online Credit Application) Availability for LOCTITE ABLESTIK 5025E To the right of the product is a small icon that lets you know the availability and leadtime of the product. This leadtime is the time to ship the product and delivery times vary based on the method of delivery you select at the time you place your order. Contact us if anything is unclear or you need more assistance.

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