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CERAMIC PTC THERMISTORS : SPECIALTY HEATING APPLICATIONS

SPECIALTY PTC HEATING THERMISTORS
PTC Thermistors for controlled chemical release PTC Thermistors for level/icing indication
PTC thermistors can be used to heat or vaporize chemical liquids with narrow functional temperature range to preventoverheating and provide controlled release of the aroma or therapeutic agents. PTC thermistors can be used in conjunction with
appropriate alarm or relay switch circuits to indicate liquid overflow in holding tanks or the onset of icing conditions. The thermistors' rapid change in resistance corresponding to changes in the ambient is utilized to indicate a change in the normal condition.


PTC Thermistors for Bimetal Thermostal
A PTC thermistor can be positioned next to a bimetal switch in parallel connection to sustain an "open" circuit configuration upon detection of a fault condition. The circuitwill remain open until direct operator intervention to correctthe fault condition. Both rectangular and circular thermistors
are available.
 
PTC Thermistors for preheating Fluorescent Lamp Heating Coil
A PTC thermistor can be connected in parallel with theresonant capacitor in fluorescent lamp circuit to preheat the lamp heating coil, thus extending the lamp service life.


Surface Mount Device (SMD) Thermistors Flexible Heating Liner
Designed as the heat liner for heating pad, heating vest, and other medical & therapeutic heating applications.
   
Features cotton based fabrics and surface mount PTC thermistors.
   
Tailored temperature according to specific
  heating requirement.
SMD formatted PTC thermistors are used in mounting procedures where the use of traditional double-plated thermistors are impractical. The SMD PTC thermistors are available in various shape, dimensions, and electrical /thermal specifications for heating and controlling
applications.
RATED VOLTAGE : 3-24V
SURFACE TEMPERATURE : 30-50C
 

 

CERAMIC PTC THERMISTORS:GENERAL HEATING APPLICATIONS


MODEL NOMENCLATURE  
PH20A24014721
PH:
 Heating thermistor
2:
 Rated Voltage=220-240V
O:
 Switching Temp=240C
A:
 Rectangular shaped
240:
 Length=24.0mm
147:
 Width=14.7mm
21:
 Thickness=2.1mm

UL RATING PARAMETERS
PTC
Shape
Rated
Volt.
(V)
Max
Volt.
(V)
Min
R25C
()
Max
Ir
(A)
Max
ISS
(A)
TSW

(C)
Max
TSURF
(C)
Rectangular
100-240
240
100
10
3
30-250
280
Disk
100-240
240
100
10
3
30-250
280
Ring
100-240
240
100
10
3
30-250
280


Available PTC dimensions (mm)
Rectangular
Disk
Ring
24.0⊥14.7⊥t
5.0⊥t
14.5⊥?4.3⊥t
23.0⊥14.7⊥t
6.0⊥t
22.0⊥?13.4⊥t
28.0⊥10.6⊥t
7.0⊥t
28.0⊥13.4⊥t
8.0⊥t
23.0⊥13.0⊥t
9.4⊥t
34.5⊥6.2⊥t
10.0⊥t
16.5⊥14.0⊥t
12.0⊥t
4.9⊥3.9⊥t
13.4⊥t
22.0⊥t

SPECIAL THERMISTOR MODELS
Model No.
VR(V)
TSURF(C)
VW/S(V/min)
Dimension(mm)
Thermistor applications
PH2IB08000025
220
200∂5
480/3
?8.0⊥2.5
Heaters (HS21D3C01) for insect repellant
PH1GA05004016
120
170∂5
360/3
5.0⊥4.0⊥1.6
Heat source for re-settable thermostat
PA56A09809815
6
70∂5
12/3
9.8⊥9.8⊥1.5
Heating buttons for flexible heating liner

Model No.
VR(V)
TSW(C)
R25?()
Dimension(mm)
Thermistor applications
PSDA3002R0N11
12
130∂5
2∂30?
30.0⊥6.2⊥1.1
Sensor for detecting changes in liquid level
PBCB049300N26
240
120∂5
300∂30?
?4.9⊥2.6
Pre-heater (BPC300NH1)
for fluorescent lamp coil


When placing an order, please provide specification parameters as indicated in the standard model list.

Note 1:The table provides standard PTC thermistors currently in production.

Note 2:For thermistors of non-standard dimensions, please send specific inquiries to our sales department.

Note 3:Unit price for the standard unit is set according to the purchase volume. Please ask for direct quotations.
Non-standard unit quotations are usually provided after the fabrication of the prototype.

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