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Tflex UT20000

Ultra-thin Thermal Gap Filler

Product Description

Ultra-thin gap filler offering great thermal performance and handling. Tflex UT20000 is a specially formulated ultra-thin gap filler thermal interface material designed for thin interfaces that offers excellent thermal performance and high compliancy. It is designed without embedded reinforcing fiberglass to minimize contact resistance, yet still allows easy material handling and durability during assembly. The elastomeric property of Tflex UT20000 provides excellent interfacing and wetting out mating surfaces in thin interface where efficiently transfer heat away from components. It is an ideal choice for low-pressure applications and optimum solution in handheld devices with thin interface gap and limited space requirements. Tflex UT20000 is electrically non-conductive, stable from -40°C thru 200°C and offered in thicknesses that range from 0.008 inches (0.2mm) up to 0.040 inches (1.0mm).

Features and Benefits
  • No fiberglass carrier to minimize thermal resistance, yet still easy to handle
  • Excellent surface wetting for low contact resistance
  • Unique formulation minimizes thermal resistance at low mounting forces
  • Environmentally friendly solution that meets regulatory requirements including RoHS and REACH


Automated PackagingAutomated Pad Placement
Custom AutomationCustom Product Development

Automotive ADASAutomotive Electronics
Automotive InfotainmentAutomotive Powertrain/ECUs
Drones/SatellitesGaming Systems
InstrumentationNotebooks/Tablets/Portable Devices
RoutersSmart Home Devices
Wireless infrastructure

Technical Specification

Density (g/cc)3.20
Dielectric Constant5.90
Hardness (Shore 00)56
Operating Temperature Max (Celsius)200
Operating Temperature Min (Celsius)-50
Outgassing CVCM (%)0.090
Outgassing TML (%)0.340
Shelf Life2 years from Date of Shipment
Thermal Conductivity (W/mK)3.00
Thermal Resistance @10 psi Max (C-in2/W)0.502
Thermal Resistance @10 psi Min (C-in2/W)0.172
Thermal Resistance @30 psi Max (C-in2/W)0.465
Thermal Resistance @30 psi Min (C-in2/W)0.132
Thermal Resistance @50 psi Max (C-in2/W)0.434
Thermal Resistance @50 psi Min (C-in2/W)0.124
Thickness Max (Microns)1000.0
Thickness Max (inches)0.040
Thickness Min (Microns)200.0
Thickness Min (inches)0.008
UL Flammability RatingV-0
Volume Resistivity2.20 x10^15 Ohm-cm
Parts (12)
↑ click on headings to sort ↓
Part NumberPart NameThermal Conductivity (W/mK)Thickness(inches)Thickness(microns)Hardness (Shore 00)Operating Temperature Max (Celsius)Operating Temperature Min (Celsius)Dielectric ConstantColor
A17669-008Tflex UT20200 18x18in,3.000.008200.056200-505.90Grey
A17669-012Tflex UT20300 18x18in3.000.012300.056200-505.90Grey
A17669-014Tflex UT20350 18x18in3.000.014350.056200-505.90Grey
A17669-016Tflex UT20400 18x18in3.000.016400.056200-505.90Grey
A17669-020Tflex UT20500 18x18in3.000.020500.056200-505.90Grey
A17669-040Tflex UT21000 18x18in3.000.0401000.056200-505.90Grey
A17682-008Tflex UT20200 9x9in,3.000.008200.056200-505.90Grey
A17682-012Tflex UT20300 9x9in,3.000.012300.056200-505.90Grey
A17682-014Tflex UT20350 9x9in,3.000.014350.056200-505.90Grey
A17682-016Tflex UT20400 9x9in,3.000.016400.056200-505.90Grey
A17682-020Tflex UT20500 9x9in,3.000.020500.056200-505.90Grey
A17682-040Tflex UT21000 9x9in,3.000.0401000.056200-505.90Grey

Company Address

Techni3 Ltd

Unit 4B Caerphilly Business Park


CF83 3GS

+44 (0)29 2125 2100

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