KOA LT732ATTE101G1000 Linear positive tempco thermistor Datasheet

LT73
linear positive tempco thermistor
EU
features
thermal
protection
•
•
•
•
•
Anti-leaching nickel barrier terminations
Twenty-five specifiable temperature characteristics
SMD thin film resistor with thermo-perceptivity
Marking: Black four-digit on bronze body color
Products with lead-free terminations meet EU RoHS
and China RoHS requirements
dimensions and construction
L
c
Type
c
W
Solder
Plating
Ni
Plating
t
d
Protective
Coating
Dimensions inches (mm)
W
c
d
L
(Inch Size Code)
2A
(0805)
.079±.008 .049±.008 .016±.008
(2.0±0.2) (1.25±0.2) (0.4±0.2)
.012
2B
(1206)
.126±.008 .063±.008
(1.6±0.2)
(3.2±0.2)
.016
.02±.008
(0.5±0.3)
(0.3
(0.4
t
+.008
-.004
+0.2 )
-0.1
.02±.004
(0.5±0.1)
+.008
-.004
+0.2 )
-0.1
.024±.004
(0.6±0.1)
Resistive Inner
Electrode
Film
Ceramic
Substrate
ordering information
New Part #
LT73
Type
2B
T
TD
Size
Code
2A: 0805
2B: 1206
Termination
Material
T: Sn
(Other termination
styles available,
contact factory
for options)
101
Packaging
TD: 7" paper taping
(5,000 pieces/reel)
TE: 7" embossed plastic
(4,000 pieces/reel)
Resistance
Value
2 significant
figures + 1
multiplier
J
1000
Tolerance
T.C.R.
G: ±2%
J: ±5%
applications and ratings
Part
Designation
Power
Rating
Maximum
Working
Voltage
Maximum
Overload
Voltage
Thermal
Time
Constant
Thermal
Dissipation
Constant
LT732A
0.1W
50V
100V
1.0s
1.37mW/°C
LT322B
0.125W
75V
150V
1.5s
Rated Ambient
Temperature
Operating
Temperature
Range
+70°C
-40°C
to
+125°C
1.47mW/°C
Thermal time constant and dissipation constant are reference values, which are values of elements and vary with connecting or fixing methods.
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.
184
12/19/12
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
LT73
linear positive tempco thermistor
applications and ratings
T.C.R.
Tolerance
150, 250, 350, 450, 500
600, 700, 800, 900
1000, 1200, 1400
1600, 1800
2000, 2200, 2400
2600, 2800, 3000
3300, 3600, 3900
4200
4500
±100x10-6/K
±150x10-6/K
Resistance Range
E-24
±15%
±10%
Resistance
Tolerance
LT732A
LT732B
2kΩ - 24kΩ
1kΩ - 20kΩ
1kΩ - 13kΩ
510Ω - 4.7kΩ
510Ω - 4.7kΩ
510Ω - 3.0kΩ
510Ω - 3.0kΩ
100Ω - 1kΩ
51Ω - 510Ω
2kΩ - 51kΩ
1kΩ - 43kΩ
1kΩ - 27kΩ
1kΩ - 10kΩ
510Ω - 9.1kΩ
510Ω - 6.2kΩ
510Ω - 6.2kΩ
100Ω - 2kΩ
51Ω - 510Ω
thermal
protection
T.C.R.
(x10-6/K)
G: ±2%
J: ±5%
T.C.R. Measuring Temperature: +25°C ~ +75°C
Rated voltage = √Power Rating x Resistance value or Max. working voltage, whichever is lower.
environmental applications
Derating Curve
Examples of Temperature
Characteristics of Resistance
Resistance Changing Rate (∆R)
100
% Rated Power
80
60
40
For resistors operated at an ambient temperature
of 70°C or above, a power rating shall be derated
in accordance with the above derating curve.
20
0
-40
-20
0
20
40
60
80
70
Ambient Temperature
(°C)
100 120
140
125
60
50
4500ppm/°C
40
3300ppm/°C
30
2400ppm/°C
20
1600ppm/°C
10
0
-10
-20
-30
-50
-25
0
25
50
75
100
125
Ambient Temperature
(°C)
Approximate Expression for Resistance-Temperature Characteristics
T.C.R.
(x10-6/K)
3000
3300
3600
3900
4200
4500
C0
C1
0.9288
0.9232
0.9175
0.9099
0.9026
0.8948
0.0028
0.0030
0.0032
0.0035
0.0038
0.0041
C2
1.9983
2.9980
4.0000
4.0064
3.9964
4.0064
x
x
x
x
x
x
10-6
10-6
10-6
10-6
10-6
10-6
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 70°C
Requirement ∆ R ±(% + 0.05Ω)
Limit
Typical
Within specified
—
tolerance
Within specified
—
T.C.R.
±1.0%
±0.23%
±1.0%
±0.1%
±1.0%
±0.1%
±3.0%
±0.54%
±3.0%
±0.62%
Test Method
25°C
+25°C/+75°C
Rated voltage x 2.5 or maximum overload volume for 5 seconds, whichever is lower
260°C ± 5°C, 10 seconds ± 1 second
-40°C (30 minutes)/ +125°C (30 minutes), 5 cycles
40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
Confirming resistance drift is recommended since this product has a tendency to have bigger resistance change than general flat chip over 70°C.
Please pay attention not to be applied ESD, it may cause of resistance change.
Actual Value (Out of Guarantee)
Test Items
Low Temperature Exposure
High Temperature Exposure
ESD
Reference
±0.05%
±0.6%
500V
Test Method
-40°C, 45 minutes
125°C, 1000 hours
Human model, 100 pF 1.5 kΩ
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
12/19/12
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
185
Similar pages