HGTECH Glass Axial Encapsulation GAT heat-sensitive semiconductor resistors

HGTECH Glass Axial Encapsulation GAT heat - sensitive semiconductor resistors are NTC (Negative Temperature Coefficient) thermistors produced by HGTECH. They are mainly used for temperature measurement in home appliances, cooking appliances, hot - water supply systems, industrial equipment, and medical care equipment. The following is a detailed introduction:

Features

Good Sealing Performance: Adopting glass - encapsulated technology, it has excellent sealing, which can effectively prevent the intrusion of moisture, dust, etc., and ensure stable operation in high - temperature and high - humidity environments.

High Precision and Fast Response: With high measurement accuracy, it can quickly sense temperature changes and provide accurate resistance - value signals, which is beneficial to precise temperature control and detection.

Small Size and Uniform Structure: The product has a small volume, which is convenient for installation in various limited - space devices. Moreover, its structural uniformity is good, which can ensure the consistency of performance.

Automatic Installation: Usually in DO - 35 packaging, it is suitable for automatic installation on PCBs, which is conducive to large - scale production and reduces production costs.

Technical Parameters

Zero - power Resistance Range: The zero - power resistance (R25) range is generally 0.3 ~ 4000 kΩ, and different models can be selected according to specific application requirements.

Resistance Tolerance: The available tolerances of R25 include F = ±1%, G = ±2%, H = ±3%, J = ±5%, K = ±10%, etc., with high precision options available to meet different accuracy requirements.

B - value Range: The B - value (B25/50 °C) range is 2800 ~ 5000 K, and its tolerance can be ±1%, ±2%, ±3%, or ±5%.

Dissipation Factor: Generally, it is ≥2.4 mW/°C (in still air), which means that it can dissipate a certain amount of power per 1°C temperature rise to ensure its own heat dissipation.

Thermal Time Constant: ≤10 s (in still air), indicating that it can quickly respond to temperature changes, and it can reach 63.2% of the change amount within 10 s when the temperature changes.

Operating Temperature Range: It is usually - 55 °C ~ + 300 °C, which can adapt to a variety of working environments, from low - temperature to high - temperature occasions.

Rated Power: Approximately 80 mW, which is the power that the thermistor can bear during normal operation.