{"title":"PTC Heating Element - 5V 40°C","handle":"ptc-heating-element-5v-40-deg-c","url":"/products/ptc-heating-element-5v-40-deg-c","description":"This PTC (Positive Temperature Coefficient) Heating Element is a self-regulating thermostatic ceramic heater that automatically maintains a constant surface temperature without external temperature controllers or sensors. Simply apply power and the element heats to its target temperature, then self-regulates to hold it steady.\n\nThe aluminium-tube encapsulation provides an insulated, constant-temperature surface with high heat transfer. It works on both AC and DC power regardless of polarity, making it versatile for a wide range of low-voltage heating applications.\n\nKey Features\n\n\nSelf-Regulating – Maintains constant temperature without external feedback circuitry\n\nAC or DC Operation – Polarity independent, works with either power type\n\nAluminium Tube Encapsulation – Insulated surface with high heat transfer rate\n\nHigh-Temperature Silicone Wire – Durable leads rated for elevated temperatures\n\nBuilt-In PTC Chip – Designed for continuous, long-term operation\n\nAuto Power Adjustment – Draws more power when heat dissipation is higher, less as it reaches equilibrium\n\n\nSpecifications\n\n\nRated Voltage – DC/AC 5 V\n\nPower – 2–3 W\n\nSurface Temperature – 40–60 °C (measured at 25 °C ambient)\n\nDimensions – 25 × 20 × 5 mm\n\n\nIdeal For\n\nInstrument preheating and anti-freeze protection\nSolenoid valve freeze prevention\nCircuit board and enclosure dehumidification\nSmall incubators and hand warmers\nUnattended equipment requiring constant low-level heat\n\n\n\nWarning: Do not use near flammable or explosive materials. Do not immerse in water. Do not subject to impact or punching. When using multiple elements together, connect them in parallel (not stacked/overlapping). The power supply must be rated above the element's maximum dissipated power for proper operation.\n\n\n\nNote: After power-on, heating power ramps up then settles to a stable level that depends on heat dissipation conditions. Faster heat dissipation results in higher stable power draw. The marked power is the maximum — actual operating power will be lower. Reducing supply voltage increases warm-up time and lowers power, but the final surface temperature remains essentially constant.\n\n\nPackage Contents\n\n1× PTC Heating Element – 5 V 40 °C\n","vendor":"DFRobot","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2528,"title":"Default Title","sku":"DF-FIT0844","price":4.47,"on_sale":false,"in_stock":true,"available_quantity":384,"option1":"Default Title"}]}