The NTC 47D 15 Datasheet is the key to understanding a specific type of thermistor, a temperature-sensitive resistor. This document provides crucial information about its characteristics, performance, and applications. Understanding this datasheet allows engineers and hobbyists alike to effectively utilize this component in various electronic circuits and systems. It’s a detailed roadmap for using this particular NTC thermistor properly.
Delving into the NTC 47D 15 Datasheet Technical Details
The NTC 47D 15 thermistor is a negative temperature coefficient (NTC) thermistor, meaning its resistance decreases as its temperature increases. The datasheet gives you all the specifics! It outlines the component’s resistance at a specific reference temperature (usually 25°C), which in this case is likely close to 47 ohms, indicated by the “47D” in the part number (where ‘D’ usually represents the decimal point position, i.e. 47 x 10^0). The “15” part of the name might refer to the thermistor’s diameter, case size, or beta value (a material constant that describes the relationship between resistance and temperature). The datasheet is essential for determining the exact resistance, tolerance, and operating temperature range. Here are some features commonly found in the datasheet of NTC thermistors:
- Resistance at 25°C (R25)
- Beta Value (β)
- Operating Temperature Range
- Dissipation Constant
- Thermal Time Constant
- Maximum Power Rating
NTC thermistors like the 47D 15 are used in a wide array of applications. They are frequently found in temperature sensing circuits, such as those used in thermostats, battery chargers, and temperature compensation circuits. For instance, in a battery charger, the thermistor can monitor the battery’s temperature and adjust the charging current to prevent overheating. Inrush current limiters are another common application, where the high resistance at low temperatures prevents large currents from flowing when equipment is turned on; as the thermistor heats up, its resistance drops, allowing the device to operate normally. The datasheet also provides information on the device’s physical dimensions and lead configurations, necessary for proper circuit board layout and assembly.
The datasheet doesn’t just provide numbers; it also includes performance graphs, which show how the thermistor’s resistance changes over a wide range of temperatures. These graphs are critical for designing accurate temperature sensing circuits. Here’s a simple table showing how temperature affects resistance in a hypothetical NTC thermistor:
| Temperature (°C) | Resistance (Ohms) |
|---|---|
| 0 | 150 |
| 25 | 47 |
| 50 | 18 |
Ready to put your knowledge into action? The best way to understand the NTC 47D 15 is to consult the official datasheet. Refer to the manufacturer-provided NTC 47D 15 Datasheet document for the most accurate and detailed information on this component.