LOCTITE ECCOBOND UF4550HTC

Harmonization Code : 3907.30.00.85 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms : Epoxide resins : Other

LOCTITE ECCOBOND UF4550HTC

Main features

  • Thermally conductive
  • Low ionics
  • Alumina filled

Product Description

LOCTITE ECCOBOND UF 4550HTC is a board level capillary underfill designed to provide enhanced thermal properties and adhesion to integrated circuit passivation material and flex circuits. LOCTITE ECCOBOND UF 4550HTC is designed to quickly underfill at elevated substrate temperature of 90 to 110°C.

LOCTITE ECCOBOND UF 4550HTC provides thermal conductivity for applications where thermal management is required. This material is also engineered to provide good thermal cycle reliability for PCBAs.

Cure Schedule

  • 15 minutes @ 160°C
Product Family

UF4550HTC

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Product availability
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TDS, SDS & Technical Documents
  • ECCOBOND UF 4550HTC-EN
    English (Technical Data Sheet (TDS))
  • CAPLINQ Underfill Material Handling Guide
    English (Technical documents)

Technical Specifications

General Properties
Specific Gravity Specific Gravity
2.47
Thermal Properties
Glass Transition Temperature (Tg) Glass Transition Temperature (Tg)
143 °C
Thermal Conductivity Thermal Conductivity
1 W/m.K
Chemical Properties
Moisture absorption Moisture absorption
0.5 %
Physical Properties
Thixotropic index Thixotropic index
0.9
Viscosity Viscosity
12,000 mPa.s

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