Please read CAUTION and Notice in this catalog for safety. This catalog has only typical specifications. Therefore you are requested
to approve our product specification or to transact the approval sheet for product specification, before your ordering.
R19E3.pdf 01.10.26
POSISTORr for Heater
POSISOTRr for Constant Temperature Heating
2-
A
1
These "POSISTOR" are designed for various applications
for constant temperature heating purpose.
Wide range of temperature characteristic shall make
easier to select most suited heater device matching to
the application.
ø4
.3
23
19
B
29.5±0.5
37±0.7
6
11
s
Features
1. The heater element itself regulate designated
temperature range.
(Temperature can change depending on how to use it)
2. The temperature pulsation which is observed in case
on-off temperature control system can be eliminated.
3. Out put wattage is decreased automatically when
heat radiation is decreased.
(Over heating is very small compared to constant
wattage heater)
4. Compact and flat surface shall realize easy to
install for various set.
(PTWTA series has electrically insulated heating
surface)
5. Depending on application, these PTC realize dual
voltage use.
(Out put wattage do not change much between 100V
through 260V)
3
6.5
3
PTWSB Series
in mm
ø7
.5
21±0.5
13
30±0.5
40±0.5
30±0.5
3
5.3 5.4
1.5
ø5max. ø5max.
1.0max.
PTWTA Series
7.0
in mm
s
Applications
•Heated vessels (electronic jars, tea pots, etc.)
•Contact lens cleaner
•Portable travel iron
•Massager
•Fragrance
•Electric pot
Curie Point
(°C)
90 (BC)
135 (AS)
205 (AH)
225 (AG)
280 (AD)
Max. Volt. Inrush Current Steady State Current Steady State Current
(at 120Vrms)
(at 220Vrms)
(Vrms)
(A)
(mA)
(mA)
260
260
260
260
260
5.0 max.
5.0 max.
5.0 max.
5.0 max.
10.0 max.
28
±20%
33
±20%
58
±20%
65
±20%
-
17
±20%
21
±20%
35
±20%
39
±20%
75
±30%
Surface Temp.
(Nominal Value)
(°C)
105
130
185
200
285
Part Number
PTWSB1BC201T260A00
PTWSB1AS201T260A00
PTWSB2AH201T260A00
PTWSB2AG201T260A00
PTWTA1AD201T260A00
Rated Volt.
120/220Vrms.
120/220Vrms.
120/220Vrms.
120/220Vrms.
120/220Vrms.
Inrush current based on 220Vrms.
Operating temperature range PTWSB1/PTWTA: 0 to +60(°C), PTWSB2: 0 to +85(°C)
Cat.No.R19E-3
1
MURATA [ MURATA MANUFACTURING CO., LTD. ]
