The ERTJ0EP683J is a thermistor manufactured by Panasonic. It's designed to provide accurate temperature sensing and compensation in various electronic applications. Thermistors are temperature-sensitive resistors that exhibit a predictable change in resistance with changes in temperature. The ERTJ0EP683J is an NTC (Negative Temperature Coefficient) thermistor, meaning its resistance decreases as the temperature increases.

Applications

• Temperature Sensing: Used in temperature sensors for measuring ambient temperature, liquid temperature, and surface temperature.
• Temperature Compensation: Employed in circuits to compensate for temperature-induced variations in component performance.
• Overheat Protection: Integrated into devices to detect and prevent overheating conditions.
• Battery Charging Circuits: Used in battery chargers to monitor battery temperature and prevent overcharging.
• Automotive Electronics: Found in engine control units (ECUs) and climate control systems.
• Industrial Control Systems: Used in process control, HVAC systems, and other industrial applications.

Features

• Resistance Value at 25°C: 68 kΩ
• Tolerance: ±5%
• B-Constant: 4500 K (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Type: 0603 (1608 Metric)
• Termination Type: Surface Mount
• RoHS Compliant: Yes, compliant with Restriction of Hazardous Substances directive.

Benefits

• Accurate Temperature Sensing: Provides reliable and accurate temperature measurements.
• Wide Temperature Range: Operates effectively over a broad temperature range from -40°C to +125°C.
• Compact Size: The 0603 package allows for high-density mounting on PCBs.
• RoHS Compliance: Environmentally friendly, meeting the requirements of RoHS directives.
• Easy to Mount: Surface mount design allows for automated assembly, reducing manufacturing costs.
• Stable Performance: Provides consistent and reliable performance over time.

Additional Details

The ERTJ0EP683J thermistor is constructed using a ceramic material with precisely controlled doping to achieve the desired resistance and temperature coefficient. The thermistor is encapsulated in a protective coating to ensure long-term stability and reliability. The B-constant (also known as the thermal index) represents the relationship between resistance and temperature. A higher B-constant indicates a greater change in resistance for a given change in temperature.

The 0603 package size (1.6mm x 0.8mm) is a standard size for surface mount components. The thermistor is supplied in tape and reel packaging for automated placement and soldering.