User Manual

39
Thermal Solutions Design Guide | Specifications subject to change
Pre-cut insulator
Heater
Heat sink
IN
IN =Insulating pad
5334
Matching heater model number
N1
Material:
N1 = Neoprene
R1 = Silicone rubber
M1 = Mica
C1= Ceramic paper
B
Pressure sensitive adhesive:
A = No PSA
B = With PSA backing
(N/A with ceramic or mica)
IN5334N1B = Sample part number
Specification options
Pre-cut Insulators
Trimmed to the same size as heaters, these pads provide
thermal insulation to minimize heat loss. You can also place them
between clamping plates and heaters for uniform
pressure. Optional pressure sensitive adhesive (PSA) backing per-
mits easy installation. It will not bond permanently and
may be removed later without damaging the heater.
* Every mica heater comes with two sheets of ceramic paper free
of charge. Order extra sheets here.
You can estimate heat loss with the following formula:
()
()
LR
TTA
WlossHeat
af
1000
−
=
where:
W = Watts of heat lost through insulation
A = Heater area in square mm
T
f
= Heat sink temperature in °C
T
a
= Ambient temperature in °C
R = R factor in °C × m/W
L = Thickness of insulation in mm
Material°C×m/W Thickness
Temperature limit
with PSA no PSA
R factor
Uncompressed
Neoprene 0.125”
(3.18 mm)
107°C 107°C 23.1 °C×m/W
Silicone
rubber foam
0.125”
(3.18 mm)
204°C 204°C 9.2 °C×m/W
Mica 0.010”
(0.25 mm)
N/A 600°C 2.5 °C×m/W
Ceramic paper* 0.125”
(3.18 mm)
N/A 600°C 11.5 °C×m/W