Flex Heater
Flexible Heaters Starting at $1
Free Engineering Support & Circuit Design
Custom Shapes, Sizes, and Power Ratings
PI & Silicone Flexible Heaters for Diverse Applications
Polyimide Flexible Heaters
- Ultra-thin & lightweight, precision‑etched circuits
- Operating Temperature: -40°C to 200°C
- Applications: Aerospace, medical devices, consumer electronics, and more.
Silicone Rubber Heaters
•
Rugged & durable, high power density
•Operating Temperature: -40°C to 260°C
•Applications: EV battery packs, pipeline heating, outdoor equipment, and more.
- Ultra-thin & lightweight, precision‑etched circuits
- Operating Temperature: -40°C to 200°C
- Applications: Aerospace, medical devices, consumer electronics, and more.
Instant Online Quote
Securely upload your design file to our online platform and get an instant quote that updates in real time as you select materials and specifications.
Free Circuit Design
Just provide voltage, power/resistance, and size (L×W). JLCPCB Flexible Heater service offers free circuit design tailored to your requirements.
Delivery Straight to Your Door
JLCPCB Flexible Heater serves customers worldwide. Your parts ship directly from our factory to your doorstep.
Flexible Heater Applications for Every Industry
Ideal for preheating and Insulation of EV Battery Packs, pipeline heating, heating of consumer electronic, and so on.
EV Battery Pack Heating
Hand Warmer Heating Module
3D Printer Heated Bed
Pipeline Heating & Insulation
Massage Device Heating
Outdoor Camera Heating & Defogging
Beauty Device Heating
Heating for Food Warmer Plates
Heated Insoles
Flexible Heater Applications for Every Industry
Ideal for preheating and Insulation of EV Battery Packs, pipeline heating, heating of consumer electronic, and so on.
1.Design File
Just provide voltage, power/resistance, and size (L×W). JLCPCB offers free circuit design tailored to your requirements.
2. Material Cutting
Based on the design file, the flexible heater substrate (e.g., brass,stainless steel, FeCrAl) is cut to the required size and shape usingprecision cutting equipment.
3. Dry Film Coating
A dry film, critical to final quality and performance, is coated onto the
cut metal substrate in a cleanroom.
4. Exposure
In a dual-stage direct-imaging system, laser exposure hardens thecircuit pattern areas, accurately transferring the pattern onto the dry film.GXA
5. Development
The exposed substrate is developed in an intelligent system, whereunexposed dry film dissolves to reveal the circuit pattern, whilehardened areas remain to resist etching.
6. Etching and Stripping
After etching the developed substrate, the dry film covering on thecircuit pattern is removed to expose the circuit traces.
7. Film Hole Punching
UV laser punching creates holes in the cover film for componentconnections and positioning in downstream processes.
8. Film and Substrate Alignment
The cover film is aligned and laminated to the etched substrate, with
holes and pads matched precisely.
9. Shaping and Cutting
The flexible heater is die-cut into its final shape according to the end-
product design.
10. 100% Resistance Testing
Manual resistance testing for each piece to ensure consistency within
+5% tolerance.
Flexible Heater FAQs & Resources
What is the difference between silicone heater and PI heater?
Silicone is more durable, flexible, and suitable for outdoor or harsh environments. PI (polyimide) heaters use thin polyimide film and are ideal for compact applications that require lightweight and precise heating control.
Silicone heaters generally offer higher mechanical strength, while PI heaters provide better thickness control and fast response.
Can I place an order without a design file?
Yes. We offer free layout services. Simply select the shape, dimensions, hole/pad requirements, and pad orientation—we’ll handle the layout for you. No CAD experience is needed.
What is the resistance tolerance of JLC flexible heaters?
Our flexible heaters have a resistance tolerance of approximately ±5%. The exact range may vary slightly depending on the film size and circuit design, but it always stays within tolerance limits, making it suitable for most constant temperature or on-off control applications.
What wires are commonly used for soldering on JLC flexible heaters?
We commonly use silicone wires 3239 (black/red) or Teflon wires 1332 (black, red, blue, yellow). These wires offer excellent heat resistance, flexibility, and insulation properties, suitable for flexible heater soldering.
Do you support soldering of thermostats, NTCs, or custom terminals?
JLC flexible heaters currently support soldering of NTCs, thermostats, and terminals. Customers need to clearly specify the model in the remark field or consult our customer service in advance. Selecting these additional components will incur extra charges.
Is there a recommended power density range? What if it's too high?
The recommended power density depends on heat dissipation, operation time, and ambient conditions.
We recommend calculating power density (W/cm²) based on the heating area and target temperature rise. We will soon launch an online calculator that automatically matches suitable materials and estimates maximum temperature based on your film size, voltage, resistance, or power input—helping you avoid underpowering or localized overheating.
Excessive density may lead to:
● Adhesive failure, detachment, or yellowing
● PI film aging or deformation
● Localized overheating, which may cause burning, short-circuits, or fire hazards
