PTC Thermistors POSISTOR ® for Circuit Protection - Murata
PTC Thermistors POSISTOR ® for Circuit Protection - Murata
PTC Thermistors POSISTOR ® for Circuit Protection - Murata
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!Note • Please read rating and !CAUTION (<strong>for</strong> storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.<br />
• This catalog has only typical specifications. There<strong>for</strong>e, please approve our product specifi cations or transact the approval sheet <strong>for</strong> product specifi cations be<strong>for</strong>e ordering.<br />
R90E.pdf<br />
Sep.24,2012<br />
<strong>POSISTOR</strong>r <strong>for</strong> <strong>Circuit</strong> <strong>Protection</strong><br />
Inrush Current Suppression (Less than 100µF)<br />
<strong>POSISTOR</strong>r is one of lead type <strong>PTC</strong> Thermistor that is able<br />
to support overcurrent or inrush current issue on the power<br />
supply circuit.<br />
It is able to integrated circuit <strong>for</strong> protection from inrush<br />
current suppression with <strong>POSISTOR</strong>r and relay or<br />
semiconductor switch as thyristor.<br />
D max.<br />
6.0 max.<br />
T max.<br />
c Features<br />
1. <strong>Protection</strong> against overcurrent situations<br />
2. Automatic reset from protective trip mode<br />
3. Space-saving<br />
4. Various characteristics to meet a suitable resistance<br />
value<br />
F±1.5<br />
4.0±1.5<br />
ød±0.05<br />
(in mm)<br />
c Applications<br />
<strong>POSISTOR</strong>r is an integrated solution to work as both<br />
current limit resistor and overcurrent fuse. It works as a<br />
stable resistor in normal operation and products itself<br />
against overcurrent situation.<br />
It can be replaced from normal resistor or the resistor with<br />
temperature fuses solution as Fig.1.<br />
<strong>POSISTOR</strong>r<br />
+<br />
-<br />
Load<br />
+<br />
-<br />
Load<br />
Fig.1<br />
<strong>POSISTOR</strong>r works as normal resistor in normal condition,<br />
and it works as protector against over current situation on<br />
the circuit.<br />
1. High-power switching power supply (LCD TV)<br />
2. The power supply <strong>for</strong> inverter on outside unit <strong>for</strong><br />
Air-conditioner<br />
3. The power supply <strong>for</strong> inverter type fluorescent lamp<br />
4. Other SW type power supply<br />
10<br />
Part Number<br />
Max.<br />
Voltage<br />
(V)<br />
Resistance<br />
(at +25°C)<br />
(ohm)<br />
Max. Inrush<br />
Current<br />
(A)<br />
Max. Applying<br />
Time of Inrush<br />
(ms)<br />
Body<br />
Diameter (D)<br />
(mm)<br />
Thickness<br />
(T)<br />
(mm)<br />
Lead<br />
Space (F)<br />
(mm)<br />
Lead<br />
Diameter (phi d)<br />
(mm)<br />
PTGL07AS121M0N51B0 280 120 ±20% 8.46 peak 10 7.8 6.0 5.0 0.5<br />
PTGL07AS181M0N51B0 280 180 ±20% 6.22 peak 10 7.8 6.0 5.0 0.5<br />
PTGL07AS201M0N51B0 280 200 ±20% 5.66 peak 10 7.8 6.0 5.0 0.5<br />
Max. inrush current shows the maximum inrush current value which be introduced into "<strong>POSISTOR</strong>" at operating temperature range.<br />
Max. applying time of inrush shows the maximum applying time of inrush current value at operating temperature range.<br />
Operating temperature range is -40 to +105°C.<br />
Taping type of part numbers with "A0" is available.<br />
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