Precise, reliable and cost-efficient: our micro-heaters are designed to fit your application's needs. Heating of small spaces is not only needed in car cigarette-lighters, but across a wide range of industries - from automotive, laser manufacturing, humidification units, life-science, 3D printing to medical devices, targeted heating of tiny spaces is required.
Answer from Customer Satisfaction Survey 2021We hope to make bigger volumes with IST AG
The perfect fit for any application
Micro heaters are used in devices requiring a small but accurate heat source with precise temperature control, such as optical interactive assistance systems. Allowing for targeted heating of tiny spaces, IST AG micro heaters are found across various industries, including automotive, laser manufacturing, humidification units, life-science, 3D printing and medical devices. They are a precision heat source for gas and humidity sensors, biopsy or tissue samples for medical analysis, or used in malignant tumor treatment. Each micro heater is individually customized and designed to fit your application’s requirements.
Development & Technology Partner
Our expertise with PTC materials manufactured using thin-and thickfilm technology enables us to provide various coating techniques for application-specific property tuning for fast, homogenous, and efficient heating.
Throughout the development process as well as after delivery, we support you with simulations and technical advice.
Benefit from our extensive expertise in thin and thick film technologies and use our team to help you create your innovation.
Standard features of a typical micro-heater

Benefits & Characteristics
Our micro heaters combine high-precision and long-term stability with a wide temperature range from - 50°C up to 800°C and feature numerous benefits
- Fast response times
- High temperature stability
- Long term stability
- Overheating protection
- High precision
- Targeted heating of tiny spaces
- Tailor-made to fit your application
Their small footprint in all shapes and sizes and excellent thermal characteristics facilitate precise and highly localized heating of solids, liquids, and gases.

Thick-film micro-heater
Resistance: 12 Ohm ±10%
Dimensions: 13 mm x 16 mm x 0.63 mm
Heating Material: PTC resistor
Substrate: Al2 O3
T range: -50 °C to +800 °C
Heat up time: >100 °C in 10 sec
High Watt density: at 800 °C / Steady state
Heat up times for different supply voltages (graphic)
Red: 12.0 V
Yellow: 5.0 V
Blue: 3.3 V