Infrared Source IR-2X Series

Operating Parameters, Diagram, Features, Products

• Rugged and Reliable
• Long Life, Stable Properties
• Supported, Coil Wound
• Does not require operation in a sealed atmosphere
• Can be mounted on a circuit board, alternative mounting available
• Available mounted vertically or horizontally
• Available on large or small base

RECOMMENDED OPERATING PARAMETERS:

	IR-21 / IR-21V	IR-22 / IR-22V
Voltage, V	5.0 (AC or DC)	5.0 (AC or DC)
Temperature, ° C	800	900
Current, A	0.8	0.8
Power, W	4.0	4.0
Life	30,000 Hours at 5 volts	30,000 Hours at 5 volts
Emissivity, %	80	80
Active Area	1.5 mm X 3.5 mm	1.5 mm X 3.5 mm

Diagram

FEATURES:

This infrared light source is a thermal emitter with an emissivity of ~80%. It is appropriate for use in laboratory or field instrumentation due to its long life and stable properties.

The coiled filament operates at ~800°C when powered with 4 watts for the IR-21 and 3.4 watts for the IR-22. The radiating element is a coiled resistance wire which has a high emissivity in the infrared spectral region. The coil is supported on a cylindrical substrate of alumina. Due to the reduced mass of this unit it can be pulsed at up to 1 hertz with a resultant temperature variation that can be detected though the depth of modulation is small. For electrically modulated infrared light source operation please see the pulsable sources. The unit does not require operation in a sealed atmosphere.

The header is available in two sizes. The larger, IR-21, has an 8.6 mm (0.341 in) diameter base. The smaller, IR-22, has a 4 mm (0.157 in) diameter base. The support pins, which are also the power leads, are hermetically sealed in glass.

The IR-2X Series is offered in two configurations: the IR-21 and IR-22 have the element mounted horizontally and the IR-21V and IR-22V have the element mounted vertically.

STANDARD PACKAGING:

(other options / materials available upon request)

	Type
Reflector	Parabolic* / Elliptical (*to achieve optical gain up to 14x)
		Size
		1" (25.4mm)
Window		Transmitting Range (microns)
	Sapphire	0.17 - 5.0
	CaF2	0.15 - 9.0
	ZnSe	0.55 - 20.0
	AR Silicon	1.2 -10.0

To learn more about our available accessories, please click here.

IR-2X SERIES PRODUCTS:

Products #	IR Source	Reflector Type	Reflector Diameter	Reflector Length	Reflector Part #	Window*
IR-21	IR-21
IR-21V	IR-21V
IR-22	IR-22
IR-22V	IR-22V
IR-21-P-1	IR-21	Parabolic	1” (25.4 mm)	1" (25.4 mm)	IR-RMC234	available
IR-21-E-1	IR-21	Elliptical	1" (25.4 mm)	1" (25.4 mm)	IR-RMC233	available
IR-21V-P-1	IR-21V	Parabolic	1" (25.4 mm)	1" (25.4 mm)	IR-RMC234V	available
IR-21V-E-1	IR-21V	Elliptical	1" (25.4 mm)	1" (25.4 mm)	IR-RMC233v	available

* Please indicate Window type in your order.