Murata Code PTFM04BF222Q2N34BS POSISTOR
Cross, Screw Clamp PTC Overheating Sensing Protection Lug Terminal Type 80C
2200 Ohm. More detail can be founded in https://amwei.com/murata-ptfm04bf222q2n34bs-ptc-lug-sensor-80c-2200-ohm/
PTC Metal Lug Tag Terminal Probe Features
Screw clamp type temperature sensor, for
sensing the temperature of transistors, thyristors, stereo main amplifiers, and
other devices having risk of overheat.
Limit temperature sensor with epoxy resin
coating.
Tinned pin leads wire.
Metal lug tag screw clamp type easy
mounting.
Metal tag lug permits good thermal coupling
and
thus short response time.
Electrical Specifications
•Max. operating voltage (TA = 0-40 C) Vmax: 30 V DC
•Measuring voltage (TA = 25 C
Tsense) Vmeas ≤ 2.5 V DC
•Rated resistance R25 ≤ 330 ohm
•Sensing temperature Tsense: 80C centigrade.
•Resistance at 65℃ (Tsense-15C): ≤1500 ohm
•Resistance at Sensing temperature 80C (Tsense): ≥2200 ohm .
•Maximum permissible current: 100mA
•Operating temperature range (V ≤ Vmeas,max) Top -25–+130 C
•Operating temperature range (V = Vmax) Top 0–+40 C
Packaging Information
Loose bulk in plastic bag.
Making use of the characteristics that the
resistance of ceramic PTC thermistors increases sharply above curie
temperature, when ambient temperature increases abnormally, protective circuit
installed PTC thermistor will turn on or cut off loop through resistance
changing, achieving thermal protection purpose.
PTC thermistors protect such equipment and
components as motors, transformers, power transistors and thyristors against
over-temperature.
A PTC thermistor is less expensive than a
thermostat, and its switch temperature can be more accurately specified. It is
also smaller and easier to design-in to electronic circuitry. Therefore PTC
thermistors can be ideal devices for temperature detection, monitoring,
indicating, limiting and over (excessive) temperature protection.