Ⅰ. Upgrade your thermal management projects with the PTC heating plate, which is professionally engineered with an aluminum alloy shell and PTC ceramic heating element for performance and reliability. This compact heating solution measures approximately 25 x 21 x 5 mm and features high temperature resistant wire for efficient heat transfer and stable performance. Ⅱ. Key Features: Aluminum alloy construction: Provides durability and longevity, making it a choice for your heating needs. PTC ceramic heating technology: Converts electrical energy into heat energy, providing consistent and efficient heat output. Insulation temperature resistance: Polyimide film wrapping the chip inside ensures long-term stable heating performance and prevents overheating. Long service life: The ceramic thermostatic plate can operate continuously for 7x24 hours, providing a reliable heat source for over 20,000 hours. Safety features: No open flame, no reddening, no toxic or harmful gases, making it suitable for use in humid environments. Compact design: With dimensions of approximately 25x21x5 mm, this heating plate is suitable for various applications, including drying and heat management projects. Ⅲ. Specifications: Material: Aluminum alloy, PTC, polyimide film; Size: Approx. 25x21x5mm / 1.0x0.8x0.2 inches; Heating material: PTC ceramic heating element; Material: High temperature resistant wire; Surface temperature: 200℃; Cable length: Approx. 15cm / 5.9 inches; Temperature error: ±10℃. Ⅳ. Package includes: 5 x PTC heating plate