PT72
ptc chip thermistor
(for over-temperature protection)
EU
features
•
Reduced size, light weight and
small mounting area
•
Quick thermal response
•
Curie temperature: 70°C, 80°C, 100°C
•
Marking: Black coating for 70°C Curie temperature
Brown coating for 80°C Curie temperature
Blue coating for 100°C Curie temperature
•
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
thermal
protection
dimensions and construction
L
W
Solder
Plating
d
Protective
Coating
Resistive
Body
Inner
Electrode
Ni
Plating
Type
(Inch Size Code)
L
.079±.008
(2.0±0.2)
.126±.008
(3.2±0.2)
Dimensions
inches
(mm)
W
t
.049±.008
(1.25±0.2)
.063±.008
(1.6±0.2)
.039±.008
(1.0±0.2)
d
.016±.008
(0.4±0.2)
.02±.012
(0.5±0.3)
2A
(0805)
2B
(1206)
t
ordering information
New Part #
PT72
Type
2A
Size Code
2A: 0805
2B: 1206
T
Termination
Material
T: Sn
(Other termination
styles available,
contact factory
for options)
70C
Curie
Temperature
70°C
80°C
100°C
TE
Packaging
TE: 7" embossed plastic
(3,000 pieces/reel)
471
Nominal
Resistance
2 significant
figures + 1
multiplier
For further information on packaging,
please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/16/15
206
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
PT72
ptc chip thermistor
(for over-temperature protection)
typical circuit schematic
thermal
protection
+V
cc
R
1
R
L
PT72
R
2
R
E
applications and ratings
Part
Designation
Curie
Temperature
70°C
PT722A
80°C
100°C
70°C
PT722B
80°C
100°C
120Ω, 470Ω, 1kΩ
50Ω, 470Ω, 1kΩ
470Ω, 1kΩ
±50%
470Ω
Nominal
Resistance
(Ω)
Resistance
Tolerance
Temperature
@ R25 x 7
85°C ± 10°C
95°C ± 10°C
115°C ± 10°C
85°C ± 10°C
95°C ± 10°C
115°C ± 10°C
16V
-55°C to +125°C
Absolute
Maximum
Working
Voltage
Operating
Temperature
Range
environmental applications
Temperature Characteristics
1000
CT 70°C CT 80°C CT 100°C
Resistance (kΩ)
100
10
1
0.1
-20
0
20
40
60
80 100
Temperature (°C)
120
140
160
Performance Characteristics
Parameter
Resistance to Solder Heat
Rapid Change of Temperature
Resistance
Humidity Resistance
Load Life
Requirement
∆
R ±%
Limit
Typical
±20.0%
±4.0%
±20.0%
±4.0%
±50.0%
±35.0%
±20.0%
±4.0%
±20.0%
±4.0%
Test Method
260°C ± 5°C, 10 seconds ± 1 second
-55°C (30 minutes), +125°C (30 minutes), 5 cycles
25°C
40°C ± 2°C, 90 - 95% RH, 1000 hours
25°C ± 2°C, 1000 hours, DC16 voltage load
12/02/11
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
207
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