DT640Silicon diode thermometer

DT640Series silicon diode thermometerWe have selected silicon diodes specifically designed for low-temperature temperature measurement. Compared to ordinary silicon diodes, it has the characteristics of good repeatability, low discreteness, higher accuracy, wider temperature range, relatively high voltage at low temperatures, and easy measurement. allThis modelThe thermometers all follow a voltage well-Temperature（V-T）Curves, therefore, have better interchangeability. Many applications do not require separate calibration.

DT64-BCCompared to other thermometers on the market, the bare chip thermometer has the characteristics of smaller size, smaller heat capacity, and shorter response time. It has unique advantages in applications with special requirements for size, heat capacity, and response time.

characteristic:

The excitation current is small, therefore it has a very small self heating effect;

Meets the standard curve and has good interchangeability;

Multiple packaging options, not easily damaged, resistant to temperature shock, and easy to install;

※Within a wide temperature range1.4K-500KInternally, it can provide good measurement accuracy;

※followDT-640Standard temperature response curve;

※ Multiple optional packaging methods;

parameter：

※Temperature range:3K~500K；

※Standard curve:DT640

※Recommended excitation current:10µA±0.1%；

Repeatability:

10mK@4.2K，16mK@77K，75mK@273K.

※Reverse voltage up to:75V；

※High current before damage: Long term200mAOr in an instant1A；

※Recommended power dissipation under incentive:20µW@4.2K; 10µW@77K; 6µW@300K；

※ BCEncapsulation response time:10ms@4.2K , 100ms@77K , 200ms@305K；

Radiation impact: Only recommended for use in low radiation environments;

※ Magnetic field influence: Not recommended for use in a magnetic field environment;

Typical corresponding curves and sensitivity

Temperature range and accuracy:

Grade or calibration range	temperature range	calibration range	accuracy
A	3K~500K	/	±0.25K
B	3K~500K	/	±0.5K
C	3K~500K	/	±1K
3L	3K~325K	3K~330K	±0.1K
3H	3K~500K	3K~505K	±0.1K
70L	70K~325K	65K~330K	±0.1K
70H	70K~500K	65K~505K	±0.1K
Accuracy of thermometer=(Calibration uncertainty)2+repeatability2）0.5

Packaging form and external dimensions:

To meet the needs of different users' usage conditions, Jinzhengmao can provide various forms of thermometer packaging and sizes. The following are common packaging forms and their specific sizes. We can also design according to customer needs.

MS: Equipped with metric screwsBO: Wire spool packagingPI: Tube packagingBC：Die

This packaging form is suitable forDT640、PT100、CernoxAnd other smaller sized sensing dies

ordering instructions

Uncalibrated sensors

Step 1: Determine the series of sensors, such asDT-640

Step 2: Select the accuracy level of the sensor, such asDT-640A

Step 3: Choose the packaging and fixing form, and place the suffix "packaging *" after the sensor model, for exampleDT-640A-BO

Calibrated sensors

Step 1: Determine the series of sensors, such asDT-640

Step 2: Select the calibration range of the sensorFor exampleDT-640-3L

Step 3: Select the encapsulation form and use it asPlace the suffix after the sensor model, for exampleDT-640-3L-BO