Home PTC Heating Element 5V 40°C | Safe Self-Regulating Heater - DFRobot
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PTC Heating Element 5V 40°C | Safe Self-Regulating Heater - DFRobot

SKU: DF-FIT0844
Sale price 2,81 €
incl. VAT
excl. VAT
Display Only — Not Available for Online Purchase This product is shown for reference only and cannot be ordered online. For bulk or customization inquiries, contact our sales team to confirm availability, pricing and lead time before placing an order.
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The PTC Heating Element – 5V 40°C is a compact thermostatic ceramic heater designed for stable, constant temperature heating without external sensors or controllers. Utilizing advanced Positive Temperature Coefficient (PTC) technology and powered by AC or DC voltage, it automatically regulates its surface temperature, ensuring safe, reliable, and efficient heating for long-term unattended applications and low-voltage IoT projects.


Features & Benefits

  • PTC Technology: Advanced Self-regulating heating; inherently safe, energy-efficient, and prevents overheating.

  • AC/DC Compatible: Polarity-independent operation for easy integration into various power circuits.

  • Constant Temperature: Reliable Thermostatic control maintains 40–60°C depending on the ambient environment.

  • Durable Industrial Build: High-quality Aluminum tube encapsulation with heat-resistant silicone-insulated wires.

  • Continuous Reliability: Solid-state built-in PTC chip design ensures long life and prevents performance degradation.

  • Adaptive Power Output: Intelligently adjusts wattage based on real-time heat dissipation for optimized energy consumption.


Technical Specifications

Specification Details
Rated Voltage DC/AC 5V (Low Voltage Safe)
Power Consumption 2–3W (Varies with thermal conditions)
Surface Temperature 40–60°C (Tested at 25°C ambient)
Dimensions 25 × 20 × 5 mm (Ultra-compact design)
Encapsulation Aluminum alloy shell for superior heat transfer
Wiring Universal Two-wire connection
Wire Type High-temperature Silicone-insulated

Applications & Use Cases

  • Instrument Preheating & Anti-Freezing: Protect outdoor sensors and delicate electronics.

  • Solenoid Valve & Nozzle Protection: Prevent freeze-ups in industrial valves and inkjet printer nozzles.

  • Dehumidification: Effective circuit board moisture prevention in humid environments.

  • DIY Incubation & Warming: Perfect for DIY Incubators, bottle warmers, and pet heating pads.

  • Small Enclosure Heating: Ideal for 3D printer chambers or small equipment boxes.


Power Supply & Connection Recommendations

  • Compatible with any 5V power source, including switching power supplies, transformers, or battery packs.

  • Ensure your power supply capacity exceeds the heater’s maximum power dissipation for stability.

  • Pro Tip: For larger heating areas, connect multiple PTC elements in parallel to scale up total heating power.


Usage & Safety Precautions

  • Do not use in flammable or explosive environments.

  • Avoid direct immersion in water (not waterproof).

  • Mechanical Integrity: Do not strike, puncture, or overlap heating elements.

  • Voltage Flexibility: Using a lower supply voltage will slow the heating rate but still maintain a safe constant surface temperature.


Package Includes

  • 1 × PTC Heating Element – 5V 40°C (Thermostatic Ceramic Heater)

1. General Shipping Information

  • We provide reliable shipping services with a tracking number for each order.
  • Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
  • Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
  • In-stock orders are usually dispatched within 1 business day after order confirmation.
  • Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
  • If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.

🚀 Need Faster Shipping?

If you require expedited shipping, please contact our customer support team at info@upenelab.com for a customized quote based on your destination.

2. Shipping Rates & Options

Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.

2.1 Germany Domestic Shipping

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0.00 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)
€0.00 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)
€50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)
Over €100.00 Free 1-3 Business Days

2.2 Selected EU Countries / Regions

Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.

Shipping Method Order Value Cost Est. Delivery
FedEx Regional Economy €0.00 - €100.00 €7.95 3-5 Business Days
FedEx Regional Economy Over €100.00 Free 3-5 Business Days

EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)
USPS Ground Advantage €0.00 - €45.00 €4.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0.00 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)
USPS Ground Advantage €0.00 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.

2.4 International Destinations Outside the EU

For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:

Order Amount Shipping Cost
€0.00 - €300.00 €19.95
Over €300.00 Free

For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.

3. Warehouses & Fulfillment

Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.

3.1 Munich Warehouse

For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.

3.2 Arlington Warehouse

For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.

3.3 Shenzhen Warehouse

For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

4. Inventory, Pre-orders & Split Shipments

  • Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
  • Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
  • Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.

5. Customs, Taxes & Delivery Issues

5.1 Customs and Taxes

For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.

Important Notice for Non-EU Countries:
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.

5.2 Damaged, Delayed, or Lost Parcels

Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.

If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@upenelab.com. We will assist you in checking the shipment status with the courier.

5.3 Incorrect Address or Failed Delivery

If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.

6. VAT

For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.