Reference Standards and Specifications
The document outlines the specifications for the HTH series resistors, including power ratings, resistance tolerance, and resistance values. The power rating is specified as 5W, with tolerance options of ±1%, ±2%, ±3%, and ±5%. Resistance values are provided, such as 6.5KΩ, and voltage options include 110V and 220V. Temperature specifications are 105℃ and 130℃ with a ±10℃ tolerance.

Applications and Ratings
The HTH series is designed for applications requiring compact, non-flammable, and insulated resistors with high stability. These resistors are used in devices like fragrance lamps and coffee warmers. The document provides detailed ratings for power, resistance range, and voltage, emphasizing the resistor's ability to withstand high temperatures and overload conditions.

Features
The resistors are compact and designed for safety, with high stability and the ability to transfer heat continuously. Custom dimensions and heating temperatures are available upon request.

Mechanical Performance
Tests for tensile strength, robustness, vibration, and soldering heat resistance are detailed. The resistors must withstand mechanical stress without significant resistance change or physical damage.

Environmental Performance
The resistors are tested for humidity resistance, load life, and temperature cycling. They must maintain performance under specified environmental conditions, with resistance changes within acceptable limits.

Conclusion
The HTH series resistors are robust components suitable for high-temperature applications, offering customizable options for specific needs. They meet stringent mechanical and environmental performance standards, ensuring reliability in various electronic applications.