| Customization: | Available |
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| Installation Type: | Soldering |
| Sensing Type: | Resistive |
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R100 3.3kΩ B0/100 3970K NTC Epoxy Encapsulated Thermistor For Fire Alarm
An NTC thermistor is a type of resistor that changes its resistance in response to temperature changes. In the context of a fire alarm, a 3.3kΩ NTC thermistor can be used as a temperature sensor to detect when the temperature rises above a certain threshold, indicating a potential fire.
The resistance of an NTC thermistor decreases as the temperature increases. This means that as the temperature rises, the current flowing through the thermistor will increase. The fire alarm circuit can be designed to trigger an alarm when the current flowing through the thermistor exceeds a certain threshold value.
To use a 3.3kΩ NTC thermistor for a fire alarm, it would be connected in series with a voltage divider or other circuit element that can measure the resistance of the thermistor. As the temperature rises, the resistance of the thermistor will decrease, causing the voltage across the thermistor to change. This change in voltage can be detected by the fire alarm circuit and used to trigger the alarm.
Overall, a 3.3kΩ NTC thermistor can be a useful component in a fire alarm system, providing accurate temperature measurements that can help detect potential fires early on.
Small Epoxy bead
Good stability, fast response time
Operating temperature range: -40ºC~125ºC
R100ºC=3.3kΩ±3%,B0/100=3970k±2%
Fire-fighting alarmer
| Product Specification | Rec. at TºC(KΩ) | Beta value | (In air) Pmax(mW) |
δ (mW/ºC) |
thermal time constant τ(sec.) | Operating Temperature Range TL-TH(ºC) | Total length L(mm) |
| A1B2124200AL19 | R62=20.92 | B25/85=4200 | Approx.3.5 | Approx.0.7 | Max.5.0 | -40~125 | 19 |
| A1A1044132BL17 | 100 | B25/85=4132 | 17 | ||||
| A1C1044132BL23 | 100 | B25/85=4132 | 23 | ||||
| A1B3323970FL25 | R100=3.3 | B25/50=3970 | 26 | ||||
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