Main Parameters:

E/O characteristics

Structural parameters

EO parameters

Response Curve

TEC parameters

Operating environment

Characteristics of Thermoelectric Cooler

The detector integrates a two-stage thermoelectric cooler (TEC). The center of the cooling surface is the center of the lower surface of the detector. The cooling area should be ≥6mm×6mm. Its performance parameters are shown in the following table:

Temperature Monitoring Module Characteristics

This detector uses a thermistor as a temperature monitoring module. The mapping between the resistance value and the temperature at the operating temperature is shown in the following table:

The corresponding relationship between thermistor value and temperature is as follows:

T1: Test target temperature, in °C;

T2: Reference point temperature, in °C. The typical value of reference temperature in the range of -20~70°C is 10 or 40°C. A reference temperature close to the target temperature should be selected.

R1: Thermistor resistance corresponding to T1, in kΩ;

R2: Thermistor resistance corresponding to T2, in kΩ;

B: Thermistor resistance corresponding to T2, in kΩ;

B: Between 20 and 70 degrees, the typical B value is 3019.6±60.

Note:

a) During TEC installation, please pay attention to the new resistance introduced by the external electrical structure. If the new resistance exceeds 10% of the TEC resistance, the I-V curve needs to be recalibrated.

b) It is recommended to open the TEC in a way that the connection resistance is small. If welding is required, short-circuit grounding protection is required, the welding temperature is ≤250℃, and the welding time is <10s;