User Manual

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Thermal Solutions Design Guide | Specifications subject to change
Silicone Rubber Thermofoil Heaters
Rugged and exible to 235°C
Overview
Silicone rubber is a rugged, flexible elastomer material with
excellent temperature properties. It is most suited to larger
heaters and industrial applications.
• Rugged construction provides high reliability in a wide
range of heating applications
• Optional custom profiled heat density creates a uniform
heat sink temperature which can improve processing yields
• Factory vulcanization and high temperature capability
allows higher wattage levels for faster processing
• High temperature capability to 235°C (455°F)
• UL and TÜV component recognition available
• Resistant to many chemicals
• Not suitable for radiation, vacuum, or prolonged exposure
to oil
• Most economical in large sizes
Typical applications
• Thermal developing in graphic imaging equipment
• Prevent condensation in instrument cabinets
• Heat outdoor electronics
• Food service equipment
• Medical respirators
• Laminators
• Drums and other vessels
• Airplane engine heaters
Custom options
• Custom shapes and sizes to 22” × 90” (560 × 2285 mm)
• Custom resistance to 200 W/in² (31 W/cm²)
• Minco can factory vulcanize rubber heaters to metal shapes
for best economy and performance
• Heaters can have integral snaps, straps, or Velcro® for
removable installation
• Heaters can include thermostats, temperature sensors and
cutouts, wiring harnesses, and connectors
• RoHS compliance
• Contact Customer Service for design assistance
Specifications
Temperature range: -45 to 235°C (-50 to 455°F).
With UL component recognition: -45 to 220°C (-50 to 428°F).
Material: Fiberglass reinforced silicone rubber,
0.008” (0.20 mm).
Resistance tolerance: ±10% or ±0.5 W, whichever is greater.
Dielectric strength: 1000 VRMS.
Minimum bend radius: 0.125” (3.2 mm).
Leadwire: Red PTFE insulated, stranded.
Current capacity (based on 100°C max. ambient temp.):
AWG 30 - 3.0 A AWG 24 - 7.5 A
AWG 26 - 5.0 A AWG 20 - 13.5 A
Maximum heater thickness:
No adhesive (A): #12 PSA (B):
Over element 0.020” (0.5 mm) 0.025” (0.6 mm)
Over leads
AWG 30 (0.057 mm²) 0.070” (1.8 mm) 0.085” (2.2 mm)
AWG 26 (0.141 mm²) 0.080” (2.0 mm) 0.095” (2.4 mm)
AWG 24 (0.227 mm²) 0.090” (2.3 mm) 0.105” (2.7 mm)
AWG 20 (0.563 mm²) 0.120” (3.0 mm) 0.135” (3.4 mm)
Add 0.005” (0.1 mm) to above dimensions for foil backing.
Dimensional tolerance:
6” (150 mm) or less ±0.03” (±0.8 mm)
6.01 to 12” (150 to 300 mm) ±0.06” (±1.5 mm)
Over 12” (300 mm) ±0.12” (±3.0 mm)
Tighter tolerances are available on custom designs if needed.