Quad JSIR 350-4 emitter, TO8 with reflector, open

4xJSIR350-4-C-R-D13.0-0-0 | 6355.05-8.00

Premium Quad-IR-emitter with high modulation frequency for NDIR gas analysis

  • Time constant of 17 ms,
  • High and long-term stable radiation output,
  • Long lifetime,
  • Measurement distances from 30 cm,
  • Applications: e.g. aerospace, medical, industrial/raw materials and resources, and industrial/production and process engineering
from 84,23 

plus taxes and shipping


Euro $ US-Dollar

Bulk prices (Minimum order quantity: 10 Pieces)

from 10 Pieces 134,26  / Piece
from 25 Pieces 98,25  / Piece
from 50 Pieces 84,23  / Piece

The product is currently only available in limited quantities. Please contact our sales team.

Quad JSIR 350-4 emitter, TO8 with reflector, open side view


Premium IR emitter with 4 chips on TO8 header for measuring gases in very low concentrations or gases with low absorption characteristics. The version in the standard TO8 housing with a reflector without a window is also suitable for long measuring distances from 30 cm. Worldwide unique, this MEMS-based counterpart to the filament emitter has a significantly higher lifetime and less drift.

Unlike filament infrared sources, the JSIR 350 Quad emitter is modulatable/pulsable and does not require an additional chopper.
The high-performance nanoamorphous carbon diaphragm achieves diaphragm temperatures up to 850 °C for high and long-term stable radiation output. The JSIR 350 Quad IR emitter is ideal for various gas analysis applications in medical, industrial aerospace and other demanding applications.

The IR illuminator can be used with MTS thermopile detectors or with MPS pyro detectors. The combination with Micro-Hybrid IR detectors guarantees optimum performance and ensures precise measurement results when analyzing gas concentrations.

Our sales team will be happy to advise you on customization and scale prices for high quantities. For more technical information, please refer to the datasheet.

Technical data

Package TO8
Add-on Reflector
Window/filter 42
Filling gas 59
Active area [mm²] 2.2 x 2.2
Power consumption Normal
Spectral output [µm] Typ. 2–15
Temperature coefficient [ppm/K.] Typ. 500
Time constant [ms] Typ. 17
Nominal power [W] 0,65
Measuring gas
  • CO2
  • H2O
  • NO
  • SF6
  • N2O
  • CO
  • SO2
  • -OH
  • CH4
  • CXHY
  • Halothan
  • Desfluran
  • Isofluran