DT640Silicon diode temperaturesensor
Jin ZhengmaoSilicon diode temperaturesensorDT640Series silicon diode temperatureThe sensor uses a silicon diode 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. All of thisThe thermometers all follow a voltage well-Temperature(V-T)Curves, therefore, have better interchangeability. Many applications do not require separate calibration.
Jin ZhengmaoSilicon diode temperaturesensorDT64-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;
Before damage, the current should be as high as: 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
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
Temperature range and accuracy:
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
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 packaging suffix after the sensor model, for exampleDT-640A-BO
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
ordering instructions
Uncalibrated sensors
Calibrated sensors