Infrared-Emitter HIS550R-C

Thermal infrared emitter with CaF₂ window and Nitrogen gas filling, hermetically sealed

HIS550R-C is a NiCr filament based thermal infrared emitter in a hermetically sealed TO-39 package with a glued CaF₂ window and Nitrogen noble gas filling. This guarantees best long-term stability. The standard cap allows a simple replacement in existing applications.

Product Name
TO-39 / TO-5
Radiating element area
11 mm²
Radiating element emissivity
> 0.9
Radiating element temperature
600 °C at 650 mW
Max. electrical power (DC)
700 mW
Max. electrical voltage
4.0 V
Max. electrical current
175 mA
Electrical resistance
21…23 Ω
Modulation frequency
6 Hz
CaF2 (glued)
Wavelength range
2 to 11 µm
Filling gas

Product details

HISbasic series

Black-body infrared sources in TO39/TO5 package

HISbasic series emitters have an integrated gold plated reflector that directs the radiation emitted from the rear to the front in order to achieve maximum efficiency. All our emitters offer minimum drift at a constant electrical resistance. Infrasolids IR emitters are characterized by a very low temperature coefficient of electrical resistance. Therefore the hot resistance and the cold resistance are almost identical which eases the electrical control of the IR sources.

Infrasolid’s infrared radiation sources are pulsable thermal emitters with a near black-body emittance. Based on a patented nanotechnology and a patented emitter set-up made of a high-melting metal, the free-standing monolithic radiating element and the nanostructured emitter surface offer numerous advantages in many applications.

Key features HISbasic series

  • Pulsable thermal black-body infrared source mounted in an industry standard TO-39/TO-5 package
  • Patented nanostructured radiating element achieves up to 500% more detection signal!
  • Lower radiating element temperature of 600 °C increases lifetime!
  • Wide wavelength range enables a broad range of applications

INFRASOLID® nanostructure technology

Infrasolid’s patented nanostructure technology allows the fabrication of extremely thin and very heat-resistant black optical coatings. They are already used in our thermal infrared light sources but also in optical detector technologies and for stray light absorption in optical measurement systems. The broad spectral range of high absorption extends from UV up to far infrared wavelengths. A structuring of the black coatings can be done by photolithography to realize very small structures or local areas of blackening. The deposition is done on flat substrates. Temperature-sensitive materials, such as plastics, can be coated using our low temperature black coating process.