User Manual
35
Thermal Solutions Design Guide | Specifications subject to change
Specifications
Temperature range: -55 to 120°C (-67 to 248°F).
Insulation: Optical grade polyester is standard. Glass and  
polycarbonate materials are available on custom models.
Transparency: 82% minimum light transmission over the  
visible spectrum.
Heating element: Resistive wire, diameter 0.0008” to 0.002” 
(0.02 to 0.05 mm).
Resistance tolerance: ±10% or ±0.5 W, whichever is greater.
Leadwires: PTFE insulated wire is standard. Lead connections 
are welded and anchored between heater layers for strength. 
Special terminations are available on custom models.
Y
X
12"
(300 mm)
MAX. THICKNESS
OVER ELEMENT:
0.010" (0.25 mm)
OVER LEADS:
0.070" (1.8 mm)
DIMENSIONAL 
TOLERANCE:
6" (150 mm) or less:
6.01 - 12" (150 - 300 mm):
±0.03" (±0.8 mm)
±0.06" (±1.5 mm)
MAX. LEAD BULGE:
0.42" WIDE x 0.35" DEEP
(11 X 9 mm)
Thermal-Clear Transparent Heaters
Technical specications
Shown below is a typical installation on a backlit LCD. The heater is 
sandwiched between the backlight and the LCD. We recommend 
a light diffuser between the heater and LCD if there is no diffusion 
coating on the back of the LCD. Diffusion will soften and conceal 
shadows cast by the heating element.
Bezel
LCD
Thermal-Clear Heater
Backlight










