This is hot! Literally! Apply 5-12VDC and the stainless steel fibers in this heating fabric will warm up, creating a little heating pad. On one hand, it's just a gigantic resistor. On the other hand, it's flexible, light, and can be wrapped around a project. Originally designed for portable wearable heating pads, this fabric can be used for wearables, weather balloons, DIY-bio projects, thermal cycling for materials testing, etc.

The temperature reached varies with voltage. Note that while the data/spec sheet says 15cm, its more like ~14cm long. Check the spec sheets in the Technical Details tab for a table of voltage/current/temperature outputs. You could PWM it with a power N-channel transistor if you want finer temperature control.

We also have a smaller version of this heating pad

Technical Details:

• Wire length: 5cm / 2"
• Insulation: Polyimide film ('Kapton')
  
• Fabric made of Polyester filament and micro stainless steel fiber
• Power requirements: 5V DC up to 1A

Note: Datasheet for HF0515 reports length is 15cm but it is closer to 14cm.

Documentation:

• Datasheet

Package Includes:

• 1 x Adafruit 4308 Electric Heating Pad - 14cm x 5cm