Source Selection

Our product line of infrared (IR) sources consists of three groups of heating element technology: Metal Coil, Thin Film, and Silicon (Globars).

IR Emitters are used in Steady State or Pulsable modes, and they vary in optical power output (radiant flux), as well as electrical and mechanical parameters.

All emitters can work with different types of detectors, including thermopile and pyroelectric sensors. If you need assistance in finding the emitter for your application, use our Initial Interview Questionnaire .

Accessories are available, including protective caps and reflectors. Please refer to the individual product page for additional information.

Initial Interview Questionnaire

METAL COIL EMITTER SUMMARY

  • Emission peak under 3.5 µm (Near-IR). For emission graphs comparison click here .
  • Max temperature range 750–1000 °C
  • Compact hot spot (radiating) area
  • Stable performance, minimal resistance drift over life
  • Low input power
  • Rugged and reliable with proven lifetime performance
Product ID Output signal, mV** Emission peak position between wavelength, µm Input Power, W Input Voltage, V Emitting area, mm Temperature at nominal Input Power, °C
IR-10K* 238 4.0 - 6.0 6.6 12.7 3.5 x 3.5 800
IR-12 500 2.5 - 4.0 10.0 5.0 3.5 x 3.5 900
IR-12K 592 2.5 - 3.5 11.0 6.0 3.5 x 3.5 1000
IR-14* 660 2.5 - 4.0 12.5 4.7 3.5 x 3.5 950
IR-14K* 860 2.5 - 3.5 15.0 5.6 3.5 x 3.5 1050
IR-30/NC 170 3.0 - 4.0 4.2 2.2 1.8 x 1.8 900
IR-30K/NC 208 2.5 - 3.5 4.4 2.5 1.8 x 1.8 950
IR-21 / 21V 132 3.0 - 4.0 4.0 5.0 1.5 x 3.5 800

* New Product
** Output signal is measured by thermopile detector placed 4 inches away from emitter. See the comparison chart below.

Coil emission graph

THIN FILM EMITTER SUMMARY — STEADY STATE

  • Emission peak 4.5–6.5 µm (Mid-IR). For emission graphs comparison click here.
  • Mostly used for refrigerant detection
  • Max temperature range 600–850 °C
  • Compact hot spot (radiating) area
  • Very stable performance, minimal resistance drift over life
  • Low input power
  • Rugged and reliable with proven lifetime performance
Product ID Output signal, mV** Emission peak position between wavelength, µm Input Power, W Input Voltage, V Emitting area, mm Temperature at nominal Input Power, °C
IR-41* 196 4.5 - 5.5 4.0 9.0 4.0 x 3.5 800
IR-43 43 5.0 - 7.5 1.1 14.0 1.7 x 1.7 600

* New Product
** Output signal is measured by thermopile detector placed 4 inches away from emitter. See the comparison chart below.

Thin-Film (Steady) emission graph

THIN FILM EMITTER SUMMARY — PULSABLE

  • Emission peak 2.5–3.0 µm. For emission graphs comparison click here.
  • Electrical modulation does not require a chopper
  • Fast response; high modulation depth and high pulse rate
  • High efficiency — low power consumption
  • Customized packaging / optic solutions (cap / reflector / window)
Product ID Output signal, mV** Emission peak position between wavelength, µm Input Power, W Input Voltage, V Emitting area, mm Temperature at nominal Input Power, °C
IR-51 140 3 - 4 0.70 7.0 1.7 x 1.7 650
IR-70 180 3.5 – 4.5 0.61 5.5 2.2 x 2.2 650
IR-50 150 3 - 4 0.70 5.2 1.7 x 1.7 650

** Output signal is measured by thermopile detector placed 4 inches away from emitter. See the comparison chart below.

Thin-Film (Pulsable) emission graph

GLOBAR EMITTER SUMMARY

  • Emission peak 2.0–3.0 µm. For emission graphs comparison click here.
  • Max temperature range 1100–1400 °C
  • Expanded hot spot (radiating) area
  • IR-Si207 and IR-Si217 have less resistance drift over life
Product ID Output signal, mV** Emission peak position between wavelength, µm Input Power, W Input Voltage, V Emitting area, mm Temperature at nominal Input Power, °C
IR-Si207 1600 2.5 - 3.5 24.0 12.0 6.0 x 4.4 1375
IR-Si217 3100 2.5 - 3.5 37.0 24.0 3.0 x 4.4 1385
IR-Si253 880 2.5 - 3.5 20.0 12.0 2.0 x 5.0 1170
IR-Si272 2040 2.5 - 3.5 30.0 6.0 2.8 x 5.0 1160
IR-Si295 2760 3.0 - 3.5 40.0 12.0 3.5 x 12.0 1200
IR-Si311 4000 3.0 - 3.5 70.0 12.0 4.5 x 17.0 1025

** Output signal is measured by thermopile detector placed 4 inches away from emitter. See the comparison chart below.

Globar emission graph