Tflex™ SF4

Non-Silicone Based Thermal Gap Filler

Product Description

Tflex SF4 is an innovative, high performing thermal material in Laird's non-silicone based formulation gap filler portfolio.   The non-silicone based formulation provides products with excellent deflection properties, providing minimal pressure on components during deflection.   Very little pressure is required to reach the lowest possible thermal resistance.  Thickness ranges from 0.5mm (0.020") to 4mm (0.160") in 0.5mm (0.020") increments available as standard.

Industries

  1. Aerospace/Defense
  2. Automotive
  3. Consumer Electronics
  4. Datacom
  5. Industrial Electronics
  6. Telecom

Applications

  1. Automotive ADAS
  2. Graphic Cards
  3. Instrumentation
  4. Optical Module
  5. Routers
  6. Servers

Features and Benefits

  • Non-silicone Based Formulation
  • Low Peak and Residual Pressure
  • Excellent surface wetting for low contact resistance
  • Low Thermal Resistance
  • UL V0 Flammability Rating 
  • Environmentally friendly solution that meets regulatory requirements including RoHS and REACH

Capabilities

  1. Automated Packaging
  2. Automated Pad Placement
  3. Custom Automation
  4. Custom Product Development
  5. Modeling
  6. Prototyping
  7. Service
  8. Testing

Datasheets

Tflex Silicone Free Gap Fillers Data Sheet Last updated10/21/24

Technical Specification

  • Typical Properties
    Color
    Grey
    Density (g/cc)
    3.10
    Operating Temperature Max (Celsius)
    125
    Operating Temperature Min (Celsius)
    -65
    Shelf Life
    2 years from Date of Shipment
  • Thermal Properties
    Thermal Conductivity (W/mK)
    4.00
    Thermal Resistance @10 psi Max (C-in2/W)
    0.082
    Thermal Resistance @10 psi Min (C-in2/W)
    0.074
    Thermal Resistance @30 psi Max (C-in2/W)
    0.078
    Thermal Resistance @30 psi Min (C-in2/W)
    0.070
    Thermal Resistance @50 psi Max (C-in2/W)
    0.074
    Thermal Resistance @50 psi Min (C-in2/W)
    0.067
  • Electrical Properties
    Dielectric Breakdown Voltage (Volts AC)
    7.5
    Volume Resistivity
    5 x 10^13
  • Mechanical Properties
    Hardness (Shore 00)
    40
  • Dimensions
    Thickness Max (Microns)
    4000.0
    Thickness Max (inches)
    0.160
    Thickness Max (mm)
    4.00
    Thickness Min (Microns)
    500.0
    Thickness Min (inches)
    0.020
    Thickness Min (mm)
    0.50
  • Compliance
    Lead Free
    Yes
    REACH
    Yes
    ROHS Compliant
    Yes
    UL Flammability Rating
    V-0
Showing 25 (of 30) Parts
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Part NumberPart NameThermal Conductivity (W/mK)Thickness (mm)Hardness (Shore 00)Operating Temperature Max (Celsius)Operating Temperature Min (Celsius)Color
A18841-16Tflex SF4,4.00 229mm x 229mm
4.00
4.00
40.00
125.00
-65.00
Grey
7 distributors
A18841-15Tflex SF4,3.75 229mm x 229mm
4.00
3.75
40.00
125.00
-65.00
Grey
6 distributors
A18841-14Tflex SF4,3.50 229mm x 229mm
4.00
3.50
40.00
125.00
-65.00
Grey
7 distributors
A18841-13Tflex SF4,3.25 229mm x 229mm
4.00
3.25
40.00
125.00
-65.00
Grey
6 distributors
A18841-12Tflex SF4,3.00 229mm x 229mm
4.00
3.00
40.00
125.00
-65.00
Grey
7 distributors
A18841-11Tflex SF4,2.75 229mm x 229mm
4.00
2.75
40.00
125.00
-65.00
Grey
6 distributors
A18841-10Tflex SF4,2.50 229mm x 229mm
4.00
2.50
40.00
125.00
-65.00
Grey
7 distributors
A18841-09Tflex SF4,2.25 229mm x 229mm
4.00
2.25
40.00
125.00
-65.00
Grey
6 distributors
A18841-08Tflex SF4,2.00 229mm x 229mm
4.00
2.00
40.00
125.00
-65.00
Grey
7 distributors
A18841-07Tflex SF4,1.75 229mm x 229mm6 distributors
A18841-06Tflex SF4,1.50 229mm x 229mm
4.00
1.50
40.00
125.00
-65.00
Grey
7 distributors
A18841-05Tflex SF4,1.25 229mm x 229mm
4.00
1.25
40.00
125.00
-65.00
Grey
6 distributors
A18841-04Tflex SF4,1.00 229mm x 229mm
4.00
1.00
40.00
125.00
-65.00
Grey
7 distributors
A18841-03Tflex SF4,0.75 229mm x 229mm
4.00
0.75
40.00
125.00
-65.00
Grey
7 distributors
A18841-02Tflex SF4,0.50 229mm x 229mm
4.00
0.50
40.00
125.00
-65.00
Grey
7 distributors
A18840-16Tflex SF4,4.00 457mm x 457mm
4.00
4.00
40.00
125.00
-65.00
Grey
6 distributors
A18840-15Tflex SF4,3.75 457mm x 457mm
4.00
3.75
40.00
125.00
-65.00
Grey
6 distributors
A18840-14Tflex SF4,3.50 457mm x 457mm
4.00
3.50
40.00
125.00
-65.00
Grey
6 distributors
A18840-13Tflex SF4,3.25 457mm x 457mm
4.00
3.25
40.00
125.00
-65.00
Grey
6 distributors
A18840-12Tflex SF4,3.00 457mm x 457mm
4.00
3.00
40.00
125.00
-65.00
Grey
6 distributors
A18840-11Tflex SF4,2.75 457mm x 457mm
4.00
2.75
40.00
125.00
-65.00
Grey
6 distributors
A18840-10Tflex SF4,2.50 457mm x 457mm
4.00
2.50
40.00
125.00
-65.00
Grey
6 distributors
A18840-09Tflex SF4,2.25 457mm x 457mm
4.00
2.25
40.00
125.00
-65.00
Grey
6 distributors
A18840-08Tflex SF4,2.00 457mm x 457mm
4.00
2.00
40.00
125.00
-65.00
Grey
6 distributors
A18840-07Tflex SF4,1.75 457mm x 457mm
4.00
1.75
40.00
125.00
-65.00
Grey
6 distributors

Documents

Tflex SF4 RoHS Last updated 09/18/24 Tflex SF4 REACH Report Last updated 09/18/24