Screw Clamp PTC Overheating Sensing
Protection Lug Terminal Type 120C 470 Ohm, Murata Code PTFM04BB471Q2N34BS
POSISTOR Cross, More details in https://amwei.com/murata-ptfm04bb471q2n34bs-ptc-lug-sensor-120c-470-ohm/
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Electrical Specifications
Max. operating voltage (TA = 0-40 C) Vmax:
30 VDC
Measuring voltage (TA = 25C Tsense) Vmeas: 2.5 VDC max.
Rated resistance R25: 100 Ohm max.
Sensing temperature Tsense: 120C
centigrade.
Resistance at 105℃
(Tsense-15C): 330 Ohm max.
Resistance at Sensing temperature 120C
(Tsense): 470 Ohm min.
Maximum permissible current: 100mA
Operating temperature range Top -25–+130 C
Operating temperature range (V = Vmax) Top
0–+40 C
Screw Clamp 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.
PTC thermistors with their very steep
curves are very suitable for the monitoring of temperature limits and
consequently for switching on a fan when a particular temperature is reached.
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.