MCD Arrays

Multi-Color Detector Assemblies : Two Color Coaxial Detector Assemblies

Ideally suited for systems operating in both the visible and IR, Cal Sensors two-color coaxial detector assemblies consist of a silicon (Si) photodiode mounted on a LMA-13R or a LMA-15R detector. Si/PbS or Si/PbSe detector assemblies can be operated uncooled or thermoelectrically (TE) cooled and are packaged in a variety of TO-packages. Standard Si diodes are 2.9 and 5.0 mm in diameter. Virtually any element size LMA-13R or LMA-15R detector which is smaller, can be installed under the diode. Silicon diodes are coated to maximize IR energy throughput to the LMA-13R or LMA-15R detector. Silicon diodes operate in the visible spectrum up to approximately 1 µm, hence the wavelength range covered by Si/PbS is 0.4 to 3.0 µm, and for Si/PbSe, it is 0.4 to 6.0 µm.

Drawings of the standard two-color and four-color detectors are:

TO-8 Package for Cooled Coaxial 2-Color Detectors

Dimensions are in inches

PIN FUNCTIONS
PIN NO.	FUNCTION	COLOR
1	COOLER (-)	BLACK
3	COOLER (+)	RED
4	Si DET (-) CATHODE	WHITE/BLUE
5	Si DET (+) ANODE	WHITE/RED
6	DETECTOR	WHITE
7	THERMISTOR	YELLOW
8	THERMISTOR	YELLOW
9	DETECTOR	WHITE

MODEL	DIMENSION
	"A"	"B"	"C"
CT1	0.390	0.244	0.213
DT1	0.390	0.239	0.208
CT1S	0.390	0.212	0.181
DT1S	0.390	0.207	0.176
CT2	0.390	0.275	0.244
DT2	0.390	0.270	0.239
CT2S	0.390	0.317	0.286
DT2S	0.390	0.312	0.281