Watlow Electric ULTRAMIC 600 - Manual (Page 4)

Electrical Properties
Voltage Leakage Current Dielectric Constant Dielectric Strength
24 to 480V <0.1mA 8.9 15KV/mm
Power density
Maximum and minimum power densities can vary with voltage, surface area and application
parameters. The following graph is meant as a guideline. Contact factory to determine optimum voltage
and power for your application.
Configurations and Dimensions
Maximum Dimensions 4032 mm 2 (6.25 in 2 )
Length Width Thickness Aspect Ratio
Flat Square
Min: 8 mm (0.314 in.)
Max: 63.5 mm (2.5 in.)
Min: 2 mm (0.078 in.)
Max: 5 mm (0.196 in.)
1
Rectangular Max: 100 mm (3.94 in.) Min: 8 mm (0.157 in.)
Min: 2 mm (0.078 in.)
Max: 5 mm (0.196 in.)
<10
Inside Diameter
(I.D.)
Outside Diameter
(O.D.)
Thickness Ring Wall Thickness
Ring Min: 3 mm (0.118 in.) Max: O.D. 75 mm (2.95 in.)
Min: 2 mm (0.078 in.)
Max: 5 mm (0.196 in.)
Minimum wall thickness:
3 mm (0.118 in.)
Surface Finish
Flatness Parallelism
Surface Roughness
(Ra)
Straight Groove
Custom Feature Hole Size
Round Diameter
<0.05 mm (0.002 in.) <0.05 mm (0.002 in.) <0.8 µm (32 µ-in.)
Depth: 0.20 - 0.5 mm (0.019 in.)
Width: 0.75 - 2 mm (0.078 in.)
Min: 1 mm (0.039 in.)
Max: Outer edge 3 mm
(0.118 in.)
Ramp Rate vs. Wattage
Watt densities to
1000W/in 2