CERAMIC
PTC THERMISTORS : GENERAL HEATING APPLICATIONS
PH SERIES PTC HEATING THERMISTORS
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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.
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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. |
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APPLICATIONS |
Fin Heating
Elements : |
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general purpose
fan heaters |
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hair, hand,
clothes, dish, etc. dryers |
Heating Plates
: |
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coffee warmer |
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travel press
irons |
various
cooking related devices |
Cartridge
Heaters : |
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hair iron,
hair curlers, & curler stations |
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adhesive guns |
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baby food
warmer |
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other localized
miniature |
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heaters (dehumidifier,
etc.) |
Specialized
Heaters : |
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evaporators
for insect repellent, "mosquito killer" (gel &
liquid), air freshener (gel & liquid) |
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steam generators
for humidifiers and facial sauna |
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Instant
water heater/steam generators |
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Dimensional
Rating : |
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I=3-40mm ; w=2-30mm
; t>1.5mm |
=6-30mm ; t>1.5mm
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Electrical and Thermal
Rating : |
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Voltage:100-200V |
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In-rush current :
10.0A |
R25C : 100 |
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Surface temperature
: 280C |
MODEL
NOMENCLATURE |
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PH20A24014721
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PH:
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Heating thermistor |
2:
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Rated Voltage=220-240V |
O:
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Switching Temp=240C |
A:
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Rectangular shaped |
240:
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Length=24.0mm |
147:
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Width=14.7mm |
21:
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Thickness=2.1mm |
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PTC
Shape
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Rated
Volt.
(V)
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Max
Volt.
(V)
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Min
R25C
()
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Max
Ir
(A)
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Max
ISS
(A)
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TSW
(C)
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Max
TSURF
(C)
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Rectangular
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100-240
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240
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100
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10
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3
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30-250
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280
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Disk
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100-240
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240
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100
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10
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3
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30-250
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280
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Ring
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100-240
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240
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100
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10
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3
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30-250
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280
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STANDARD THEMISTOR
MODELS |
Model No.
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VR
(V)
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TSURF
(C)
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VW/S
(V/min)
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Dimension
(mm)
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PH6HA18006014
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12
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2005
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50/3
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18.0⊥6.0⊥1.4
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PH8JA23014721
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50
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2305
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100/3
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23.0⊥14.7⊥2.1
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PH1NA24014721
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120
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2405
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360/3
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24.0⊥14.7⊥2.1
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PH1PA27313114
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120
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2655
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360/3
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27.3⊥13.1⊥1.4
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PH2FA05004016
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220
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1705
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480/3
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5.0⊥4.0⊥1.6
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PH2KA27810614
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220
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2205
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480/3
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27.8⊥10.6⊥1.4
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PH2MA27810614
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2520
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2405
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480/3
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27.8⊥10.6⊥1.4
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PH2PA24014721
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220
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2655
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480/3
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24.0⊥14.7⊥2.1
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PH4NA24014725
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440
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2605
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600/3
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24.0⊥14.7⊥2.5
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PH5AB07600025
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6
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1305
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24/3
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7.6⊥2.5
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PH7IB07000018
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24
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2305
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50/3
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7.0⊥1.8
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PH19B08000018
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120
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1105
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360/3
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8.0⊥1.8
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PH27B08000018
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220
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1055
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480/3
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8.0⊥1.8
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PH2BB08000030
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220
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1355
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480/3
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8.0⊥3.0
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PH2IB08000025
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220
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2005
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480/3
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8.0⊥2.5
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PH2KB08000018
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220
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2255
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480/3
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?8.0⊥1.8
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PH2FC22013532
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220
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1655
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480/3
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?O22x?i13.5⊥3.2
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Available
PTC dimensions (mm) |
Rectangular
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Disk
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Ring
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24.0⊥14.7⊥t
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5.0⊥t
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14.5⊥?4.3⊥t
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23.0⊥14.7⊥t
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6.0⊥t
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22.0⊥?13.4⊥t
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28.0⊥10.6⊥t
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7.0⊥t
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28.0⊥13.4⊥t
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8.0⊥t
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23.0⊥13.0⊥t
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9.4⊥t
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34.5⊥6.2⊥t
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10.0⊥t
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16.5⊥14.0⊥t
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12.0⊥t
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4.9⊥3.9⊥t
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13.4⊥t
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22.0⊥t
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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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