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DR46

DR46 Detector circuit overlay
DR46 Detector circuit overlay
DR46 Thermopile Detector
DR46 Thermopile Detector

Thin Film Based Thermopile Detector

Features:
A two-channel or a one-channel compensated thin-film thermopile in a TO-8 package. Each active area is 4mm x 0.6mm. Offers high output with excellent signal-to-noise ratio. An internal aperture minimizes channel-to-channel crosstalk increasing sensitivity.
Applications:
Gas analysis, non-contact temperature measurement, fire detection / suppression.
Benefit:
High output, low noise and dual channel in a TO-8 package.
Options:
  1. See Standard Windows and Filters (PDF) for list of optical filter options.
  2. See Thermopile Configuration Table for more options.
Datasheet:
For more detailed information see the datasheet
DR46 (PDF)

DR46 Thermopile Detector Technical Specifications

Specifications apply at 23°C with KBr Window and Argon encapsulating gas

Parameter
Min
Typical
Max
Symbol
Units
Comments

Active Area size

4 x .6

AA

mm

Hot junction size, per element.

Element Area

2.4

A

mm2

  

Number of Junctions

50

 

 

Per element.

Number of Channels

2

 

 

Per detector package.

Output Voltage

170

210

250

Vs

μV

DC,  H=330μW/cm2 (3)

Signal-to-Noise Ratio

10,828

16,406

23,364

SNR

√Hz

DC, SNR=Vs/Vn

Responsivity

21.5

26.5

31.6

V/W

DC, =Vs/HA  (2)

Resistance

7

10

15

R

kΩ

Detector element

Temperature Coefficient of

 

-.36

 

 

%/°C

Best linear fit, 0° to 85°C (1)

Temperature Coefficient of  R

 

-.2

 

 

%/°C

Best fit, 0° to 85°C (1)

Noise Voltage

10.7

12.8

15.7

Vn

nV/√Hz

Vn2=4kTR

Noise Equivalent Power

.34

.48

.73

NEP

nW/√Hz

DC,  NEP= VnHA/Vs (2)

Detectivity

2.1

3.2

4.6

D*

108√Hz/W

DC,  D*=Vs/ VnH√A  (2)

Time Constant

 

40

 

Τ

ms

Chopped, -3dB point (1)

Field of View

N/A

FOV

Degrees

See Assembly Drawings for FOV Description.

Package Type

TO-8 with 5 Pins

   

Standard package hole size:Ø.437

Element Matching

 

5

10

M

%

M=|VA-VB|/VB (2)

Element Separation

 

2.0

 

 

mm

Center to Center

Operating Temperature

-50

 

100

Ta

°C

  

General Specifications: 
Flat spectral response from 100nm to > 100µm.  Linear signal output from 10-6 to 0.1W/cm2. 
Maximum incident radiance 0.1W/cm2 , damage threshold ≥ .5W/cm2
Notes:      
(1) Parameter is not 100% tested. 90% of all units meet these specifications.
(2) A is detector area in cm2.
(3)Test Conditions: 500K Blackbody source; Detector active surface 10cm from 0.6513cm Diameter Blackbody Aperture.