CA
T
.8100Q-1
POSITIVE THERMISTORS "Posi-R"
F
or Ther
mal Protection
This series of Posi-R as a temperature indicator is small in size and little
in calorific capacity.
It is so useful for indicating any overheating of power
transistors and thyristors in the power sources.
8.
1
0.8
φ
4.2
6.0MAX.
4.5MAX.
φ
0.6
φ
0.6
5.0 1.5
18
5.0 1.5
10k
1k
500
100
30
10
50
100
150
OR
OT
OX
IA
IC
IE
IG
Resistance (
Ω
)
T
emperature (˚C)
Fig. 12 Resistance
vs.Temperature
Characteristics
ZPP35
Type
ZPP22
Type
ZPP350R500E
ZPP220R501E
70
ZPP350T500E
ZPP220T501E
80
ZPP350X500E
ZPP220X501E
90
ZPP351A500E
ZPP221A501E
100
Ω
100
500
Ω
500
Ω
16VDC
100mA
ZPP351C500E
ZPP221C501E
or
less
110
or
less
or
more
ZPP351E500E
ZPP221E501E
120
ZPP351G500E
ZPP221G501E
130
The current flowed in a Posi-R shall be within the range lest it should generate heat.
Resistance at trip temperature (Tr) is available up to 3k
Ω
, upon request.
Type No.
ZPP35
Type
ZPP22
Type
25˚C
Tr(˚C)
Tr
–
5˚C
Tr
+
5˚C
Temperature Indication
Max. Operating
Voltage
Max. Inrush
Current
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