1k ohm PTC Thermistor
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1k ohm PTC Thermistor
Quick Details
Compliant with ITU-T K20 K21 K45 --Basic level lightning surges (10/700μs)Suitable for continuous connection to main voltage 110/230 VAC in tripped (high ohmic) condition. Round leadless disk thermistor availble for combined usage of PTC and primary protection, e.g gas arrestor. Typical Resistance @25C (R25) 10 ohm, 12 ohm, 18 ohm, 20 ohm, 25 ohm, 50 ohm, 55 ohm. Matching available with narrow resistance tolerance. Tight resistance tolerance maintained after switching. Negligible resistance drift after soldering or switching.
Description
This series of ceramic PTC (positive temperature coefficient )
thermistors help provide protection against power cross, power
induction surges and lighting surge defined in ITU, Telcordia, UL.
Available in chip, radial-leaded coated and non-coated, SMD, twin
vertical surface mount configuration. PTC thermistor overcurrent
protector provides reversible, self-resetting protection against
over-currents of telecommunication line protector units, improve
the reliability of custom premises and network equipment. Advanced developments in telecom equipment in recent years have
radically altered the protection requirements of both exchange and
subscriber equipment. The PTC thermistor must protect the telephone
line circuit against overcurrent, which may be caused by the
following examples: Application It's applicable to various types of fluorescent lamp, electronic
ballast and electronic energy-saving lamp. The PTC can be connected
across the lamp resonator without changing the circuits. It can
change hard start of the ballast and electronic energy-saving lamp
to preheated start and the preheating time of the filament can come
up to 0.4-2 seconds, which will extend the service life of the
fluorescent tube by over 4 times. Specification
1,Symbol for the products
2,Specifications of Appearance
2-1,Dimensions (mm)
2-2. Coating
3,Electric Performance
4,Other Performance
5.0 Part Numbering
6.0 R-T Curve
Competitive Advantage:
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Product Tags: temperature sensor thermistor positive temperature coefficient thermistor |
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