정온발열체



CERAMIC PTC THERMISTORS : GENERAL HEATING APPLICATIONS

PH SERIES PTC HEATING THERMISTORS
In most heating applications. PTC thermistors do not require independentcontrolling devices such as thermostat, temperature limiter, and thermal fuse.
The device safety is introduced by the thermistor's self-regulating effect, a property unique to the thermistor. In heating applications, ceramic PTC thermistors offer long term stability while providing unmatched safety against overheating. Unlike the traditional resistive heating elements, these ceramic thermistors do not consume atmospheric oxygen during the heating phase.

When ceramic PTC thermistors are used in heating applications, they are processed so that the operation temperature range is close to the TSW. In order to achieve optimum heating power, these thermistors are operated at the rated voltage in the low-resistance portion of the R/T curve. Most ceramic PTC thermistors can be processed to exhibit a broad switching temperature range in a variety of dimensions.
APPLICATIONS
Fin Heating Elements :
general purpose fan heaters
hair, hand, clothes, dish, etc. dryers
Heating Plates :
coffee warmer
travel press irons
various cooking related devices
Cartridge Heaters :
hair iron, hair curlers, & curler stations
adhesive guns
baby food warmer
other localized miniature
heaters (dehumidifier, etc.)
Specialized Heaters :
evaporators for insect repellent, "mosquito killer" (gel & liquid), air freshener (gel & liquid)
steam generators for humidifiers and facial sauna
Instant water heater/steam generators



Dimensional Rating :    
I=3-40mm ; w=2-30mm ; t>1.5mm
=6-30mm ; t>1.5mm
2i25mm10o30mm ; t>1.5mm
Electrical and Thermal Rating :    
Voltage:100-200V In-rush current : 10.0A
R25C : 100 Surface temperature : 280C

 

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



STANDARD THEMISTOR MODELS
Model No.
VR
(V)
TSURF
(C)
VW/S
(V/min)
Dimension
(mm)
PH6HA18006014
12
2005
50/3
18.0⊥6.0⊥1.4
PH8JA23014721
50
2305
100/3
23.0⊥14.7⊥2.1
PH1NA24014721
120
2405
360/3
24.0⊥14.7⊥2.1
PH1PA27313114
120
2655
360/3
27.3⊥13.1⊥1.4
PH2FA05004016
220
1705
480/3
5.0⊥4.0⊥1.6
PH2KA27810614
220
2205
480/3
27.8⊥10.6⊥1.4
PH2MA27810614
2520
2405
480/3
27.8⊥10.6⊥1.4
PH2PA24014721
220
2655
480/3
24.0⊥14.7⊥2.1
PH4NA24014725
440
2605
600/3
24.0⊥14.7⊥2.5
PH5AB07600025
6
1305
24/3
7.6⊥2.5
PH7IB07000018
24
2305
50/3
7.0⊥1.8
PH19B08000018
120
1105
360/3
8.0⊥1.8
PH27B08000018
220
1055
480/3
8.0⊥1.8
PH2BB08000030
220
1355
480/3
8.0⊥3.0
PH2IB08000025
220
2005
480/3
8.0⊥2.5
PH2KB08000018
220
2255
480/3
?8.0⊥1.8
PH2FC22013532
220
1655
480/3
?O22x?i13.5⊥3.2



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

UL Approved: Thickness "t"=1.5-3.0mm
Low Voltage (6 to 50V): Thickness 1.5>t>0.8mm

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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