PT722AT70CTE471 Datasheet, PDF (2/2 Pages) KOA Speer Electronics, Inc. – ptc chip thermistor (for over-temperature protection)

typical circuit schematic
+Vcc
R1
RL
PT72
R2
RE
PT72
ptc chip thermistor
(for over-temperature protection)
applications and ratings
Part
Designation
PT722A
PT722B
Curie
Temperature
70°C
80°C
100°C
70°C
80°C
100°C
Resistance
@ 25°C
470Ω
120Ω, 470Ω, 1kΩ
50Ω, 470Ω, 1kΩ
470Ω, 1kΩ
Resistance
Tolerance
±50%
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
Absolute
Maximum
Working
Voltage
Operating
Temperature
Range
16V
-55°C to +125°C
environmental applications
Temperature Characteristics
1000
CT 70°C CT 80°C CT 100°C
100
10
1
0.1
-20 0
20 40 60 80 100 120 140 160
Temperature (°C)
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, rated voltage
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/02/11
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: [phone] • www.koaspeer.com
163