KOA SPEER ELECTRONICS, INC.
SS-252 R2
AHA 6/01/06
Positive Tempco Thermistor
Type PT72
1. Features
I
I
I
I
CERTIFIED
CERTIFIED
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
2. Dimensions
L
W
Solder
Plating
d
Protective
Coating
Resistive
Body
Inner
Electrode
Ni
Plating
Table 1
Type
Dimensions - inches (mm)
L
W
t
.049±.008
(1.25±0.2)
.063±.008
(1.6±0.2)
.039±.008
(1.0±0.2)
.039±.008
(1.0±0.2)
d
.016±.008
(0.4±0.2)
.020±.012
(0.5±0.3)
.079±.008
2A
(0805)
(2.0±0.2)
.126±.008
2B
(1206)
(3.2±0.2)
t
3. Type Designation
Type designation shall be as the following form.
PT72
Type
2A
Size
Code
2A: 0805
2B: 1206
T
Termination
Material
T: Sn
(Other termination
styles available,
contact factory
for options)
70°C
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
PAGE 1 OF 4
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
www.koaspeer.com
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.
SS-252 R2
4. Typical Circuit Schematic
PT72
R2
R1
5. Applications and Ratings
Part
Designation
Curie
Temperature
Resistance
@ 25°C
Resistance
Tolerance
Temperature
@ R25 x 7
85°C ± 10°C
470Ω
±50%
70°C
PT722B
80°C
100°C
120Ω, 470Ω, 1kΩ
50Ω, 470Ω, 1kΩ
470Ω, 1kΩ
85°C ± 10°C
95°C ± 10°C
115°C ± 10°C
95°C ± 10°C
115°C ± 10°C
16V
-55°C
to
+125°C
Absolute
Maximum
Working
Voltage
Operating
Temperature
Range
70°C
PT722A
80°C
100°C
6. Environmental Applications
6.1 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
PAGE 2 OF 4
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
www.koaspeer.com
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.
SS-252 R2
6.2 Performance Characteristics
Requirement
∆
R
Parameter
Resistance to Solder Heat
Rapid Change of Temperature
Resistance
Humidity Resistance
Load Life
Limit
±20.0%
±20.0%
±50.0%
±20.0%
±5.0%
Typical
±4.0%
±4.0%
±35.0%
±4.0%
±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
7. Packaging Specifications
7.1 Dimensions of Plastic Tape
J
t
A
D
B
C
E
K
L
F
G
H
Direction of feed
Dimensions in inches (mm)
Series
2A
2B
A
0.057 ± 0.004
(1.45 ± 0.1)
0.075 ± 0.004
(1.9 ± 0.1)
B
0.089 ± 0.004
(2.25 ± 0.1)
0.138 ± 0.004
(3.5 ± 0.1)
C
0.315 ± 0.008
(8.0 ± 0.2)
0.315 ± 0.008
(8.0 ± 0.2)
D
0.138 ± 0.002
(3.5 ± 0.05)
0.138 ± 0.002
(3.5 ± 0.05)
E
0.069 ± 0.004
(1.75 ± 0.1)
0.069 ± 0.004
(1.75 ± 0.1)
F
0.157 ± 0.004
(4.0 ± 0.1)
0.157 ± 0.004
(4.0 ± 0.1)
Series
2A
2B
G
0.079 ± 0.002
(2.0 ± 0.05)
0.079 ± 0.002
(2.0 ± 0.05)
H
0.157 ± 0.004
(4.0 ± 0.1)
0.157 ± 0.004
(4.0 ± 0.1)
J
0.059 ±
0.004
.
0
0.1
)
(1.5 ±
0
0.059 ±
0.004
0
.
(1.5 ±
0.1
)
0
K
0.039 ±
0.008
0
.
0.2
)
(1.0 ±
0
0.039 ±
0.008
0
.
(1.0 ±
0.2
)
0
L
0.049 ± 0.004
(1.25 ± 0.1)
0.049 ± 0.004
(1.25 ± 0.1)
t
0.01 ± 0.002
(0.25 ± 0.05)
0.01 ± 0.002
(0.25 ± 0.05)
PAGE 3 OF 4
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
www.koaspeer.com
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.
SS-252 R2
7. Packaging Specifications (Continued)
7.2 Leader and End Tape
19.69 (500
±
20
)
0
19.69 (500
±
20
)
0
5.91(150
±
20
)
0
Top tape
(Empty)
End Tape
3000 pcs. (Chip Mounting Space)
(Empty)
(Leader Space)
Leader Tape
Tape running direction
7.3 Reel specifications for taping
Marking
B
A
C
D
Dimensions in inches (mm)
Series
PT72
A
7.01 ± 0.079
(178 ± 2)
B
C
D
Material
Plastic
2.36 ± 0.079 0.512 ± 0.020 0.354 ± 0.059
(60 ± 2)
(13 ± 0.5)
(9 ± 1.5)
PAGE 4 OF 4
Bolivar Drive
I
P.O. Box 547
I
Bradford, PA 16701
I
USA
I
814-362-5536
I
Fax 814-362-8883
I
www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
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