EPO-TEK¬Æ EJ2189-LV is a two-component, electrically conductive epoxy that is silver-filled and designed for low-temperature curing. It has a recommended cure temperature of 150¬8C for one hour, with alternative curing options available at lower temperatures. The mix ratio by weight is 10:1, and it has a pot life of four hours at room temperature. The product exhibits a specific gravity of 3.07 for Part A and 0.94 for Part B, and it is characterized by a smooth flowing paste consistency. Its viscosity at 23¬8C ranges from 25,000 to 45,000 cPs, with a thixotropic index of 3.3. The epoxy has a glass transition temperature of at least 40¬8C and a degradation temperature of 340¬8C. It demonstrates a volume resistivity of ,⧠0.0005 Ohm-cm when cured at 150¬8C for one hour. EJ2189-LV adheres well to various substrates, including metals, ceramics, glass, and engineering plastics. It is suitable for applications such as EMI and RF shielding, ITO interconnections in LCDs, and low-temperature die-attach in hybrids and IC packages. The product is packaged with a shelf life of one year at room temperature for bulk and six months at -40¬8C for syringe packaging.
EPO-TEK® offers a full suite of electrically and thermally conductive epoxy adhesives. Our extensive product line allows users from a wide range of industries to easily select the optimal adhesive for their specific application, based on the best combination of physical, electrical, and mechanical characteristics. We are the pioneer of Electrically Conductive Adhesives (ECA) since 1966.
Electrically conductive adhesives (ECAs) are typically based on silver-filled epoxy formulations; however, our product lines also include gold, platinum , nickel and copper. These materials are used as conductive interconnects instead of soldering. Processing at much lower temperatures while being lead-free and less brittle, ECAs are most commonly used for semiconductor packaging, microwave and RF (radio frequency) hermetic enclosures, photonics, PCB assembly and medical devices. Our EPO-TEK® ECAs are also known for being high reliability (HI-REL) die attachment adhesives and are commonly used in military applications (MIL-STD).
| Epoxy Technology | |
|---|---|
| Product Category | Polymers and Plastic Resins |
| Product Number | EPO-TEK® EJ2189-LV |
| Product Name | Electrically Conductive Epoxy |
| Type | CastingResin; Thermally cured |
| Form / Shape | Liquid |
| Chemical System | Epoxy |
| Filler | Metal or MIM; Silver |
| Industry | Electronics; Electrical Power or High Voltage; Semiconductors or IC Packaging |
