Catalogue Flexible Heaters Design Guide
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Silicone Rubber Thermofoil™ Heaters
Rugged and flexible 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 TUV 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" X 90" (560 X 2285 mm)
• Custom resistance to 200 fi/in2 (31 fi/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, industrial temperature sensors and cutouts, wiring harnesses, and connectors
• RoHS compliance
• Contact Access: Minco Sales and Support 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 fi, 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 nW) 0.070" (1.8 mm) 0.085" (2.2 mm)
AWG 26 (0.1 41 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.
Configure Minco heaters and order online at: www.minco.com/heater_config/
Specifications subject to change
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20 MinCO Americas: 763.571.3121 | Europe: (33) 5 61 03 24 01 | Asia Pacific: (65) 6511 3388
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