KOA LT732AT Linear positive tempco thermistor Datasheet

KOA SPEER ELECTRONICS, INC.
SS-251 R2
AHA 6/01/06
Linear Positive Tempco Thermistor
Type LT73
1. General
■ Anti-leaching nickel barrier terminations
■ Twenty-five specifiable temperature
characteristics
2. Dimensions
■
■
CERTIFIED
SMD thin film resistor with thermo-perceptivity
Marking: black four-digit on bronze body color
L
c
CERTIFIED
c
W
Solder
Plating
Ni
Plating
t
d
Protective
Coating
Resistive Inner
Film
Electrode
Ceramic
Substrate
Table 1
Part
Dimensions - inches (mm)
c
W
L
d
t
+.008
-.004
+.20
-.10
2A
(0805)
0.079±0.008
(2.00±0.20)
0.049±0.008
(1.25±0.20)
0.016±0.008
(0.40±0.20)
0.012
(0.30
.
)
0.020±0.004
(0.50±0.10)
2B
(1206)
0.126±0.008
(3.20±0.20)
0.063±0.008
(1.60±0.20)
0.020±0.012
(0.50±0.30)
0.016 +.008
.
-.004
(0.40 +.20
-.10 )
0.024±0.004
(0.60±0.10)
3. Type Designation
The type designation shall be in the following form:
New Type
LT73
2B
T
TD
101
J
1000
Type
Size
Termination
Material
Packaging
Resistance
Value
Tolerance
T.C.R.
T: Sn
(Other termination
styles available,
contact factory
for options)
TD: 7" Paper Taping
5,000 pcs/reel
TE: 7" Embossed Plastic
4,000 pcs/reel
2 significant
figures +
1 multiplier
G: ±2%
J: ±5%
2A: 0805
2B: 1206
PAGE 1 OF 4
Bolivar Drive
■
P.O. Box 547
■
Bradford, PA 16701
■
USA
■
814-362-5536
■
Fax 814-362-8883
■
www.koaspeer.com
Specifications given herein may be changed at any time without pr ior notice. Please confir m technical specifications before you order and/or use.
KOA SPEER ELECTRONICS, INC.
SS-251 R2
4. Standard Applications
Part
Designation
LT732A
Absolute
Maximum
Working
Voltage
Power
Rating
@ 70°C
100mW
Absolute
Operating
Maximum
Temp.
Overload
Range
Voltage
50V
Resistance Range
E-24*
100V
-40°C
to
+125°C
LT732B
125mW
75V
150V
T.C.R.
(ppm/°C)
Maximum**
Resistance
Tolerance
LT732A
LT732B
2KΩ - 24KΩ
1KΩ - 20KΩ
1KΩ - 13KΩ
510Ω - 4.7KΩ
510Ω - 4.7KΩ
510Ω - 3.0KΩ
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
510Ω - 6.2KΩ
100Ω - 2KΩ
51Ω - 510Ω
G: ±2%
T.C.R.
Tolerance
150, 250, 350, 450, 500 ±100ppm/°C
600, 700, 800, 900
±150ppm/°C
1000, 1200, 1400
±15%
1600, 1800
2000, 2200, 2400
2600, 2800
3000, 3300, 3600
±10%
3900
4200
4500
J: ±5%
* See Appendix D for available decade values.
** T.C.R. is factory tested from 25°C to 75°C.
5. Environmental Applications
5.1 Derating Curve
100
% Rated Power
80
60
40
20
0
-40
-20
0
20
40
60
80
70
Ambient Temperature
(°C)
100 120
140
125
10
Resistance Changing Rate (∆R)
Resistance Changing Rate (∆R)
5.2 Temperature Characteristics
1000ppm/°C
8
6
500ppm/°C
4
2
150ppm/°C
0
-2
-4
-6
-8
-50
-25
0
25
50
75
100
125
60
50
4500ppm/°C
40
3300ppm/°C
30
2400ppm/°C
20
1600ppm/°C
10
0
-10
-20
-30
-50
-25
Ambient Temperature
(°C)
0
25
50
75
100
125
Ambient Temperature
(°C)
PAGE 2 OF 4
Bolivar Drive
■
P.O. Box 547
■
Bradford, PA 16701
■
USA
■
814-362-5536
■
Fax 814-362-8883
■
www.koaspeer.com
Specifications given herein may be changed at any time without pr ior notice. Please confir m technical specifications before you order and/or use.
KOA SPEER ELECTRONICS, INC.
SS-251 R2
6. Approximate Expression for Resistance-Temperature Characteristics
T.C.R.
(x10-6/K)
C0
C1
C2
3000
0.934
0.00258
2.77 x 10-6
3300
0.927
0.00282
3.17 x 10-6
3600
0.921
0.00306
3.58 x 10-6
3900
0.915
0.00330
4.00 x 10-6
4200
0.909
0.00353
4.44 x 10-6
4500
0.903
0.00377
4.89 x 10-6
7. Performance Characteristics
Maximum ∆ R
Parameter
Test Method
Thermal Shock
±1.0%
MIL-STD-202, Method 107, -55°C to +155°C, 5 cycles
Low Temperature Operation
±1.0%
MIL-R-55342 π 4.7.4, 1 Hour @ -55°C followed by
45 minutes of RCWV*
High Temperature Exposure
±1.0%
MIL-R-55342 π 4.7.6, 100 hours @ 125°C
Short Time Overload
±1.0%
MIL-R-55342 π 4.7.5, 2.5 x RCWV for 5 seconds
Resistance to Solder Heat
±1.0%
MIL-R-55342 π 4.7.7, 260°C for 10 seconds
Terminal Strength-Bend
±1.0%
2mm min. deflection in either direction for 10 seconds
Moisture Resistance
±3.0%
MIL-STD-202, Method 103, 40°C, 90 - 95% RH,
1000 hours
Life
±3.0%
MIL-STD-202, Method 108, 70°C, 1000 hours @ RCWV,
1.5 hr ON, 0.5 hr OFF
Temperature Cycling
±1.0%
30 minutes @ -55°C, 15 minutes @ +25°C,
30 minutes @ +125°C, 15 minutes @ +25°C, 5 cycles
* RCWV = Rated Continuous Working Voltage
PAGE 3 OF 4
Bolivar Drive
■
P.O. Box 547
■
Bradford, PA 16701
■
USA
■
814-362-5536
■
Fax 814-362-8883
■
www.koaspeer.com
Specifications given herein may be changed at any time without pr ior notice. Please confir m technical specifications before you order and/or use.
KOA SPEER ELECTRONICS, INC.
SS-251 R2
8. Dimensions
1.5 +0.1
-0
8.1 Carrier Tape
T2
E
A
D C
B
K
T1
F
G
T1
Direction of feed
H
Dimensions - inches (mm)
Tape
B
C
D
E
F
G
H
2A
0.094±0.002
(2.4±0.1)
0.315±0.008
(8.0±0.2)
0.138±0.002
(3.5±0.05)
0.069±0.004
(1.75±0.1)
0.157±0.004
(4.0±0.1)
0.079±0.002
(2.0±0.05)
0.157±0.004
(4.0±0.1)
2B
0.138±0.002
(3.5±0.1)
0.315±0.008
(8.0±0.2)
0.138±0.002
(3.5±0.05)
0.069±0.004
(1.75±0.1)
0.157±0.004
(4.0±0.1)
0.079±0.002
(2.0±0.05)
0.157±0.004
(4.0±0.1)
Tape
A
K
T1
T2
2A
(TD)
0.065±0.008
(1.65±0.2)
––––
0.030
(0.75 +0.2
-0 )
––––
2A
(TE)
0.063±0.006
(1.60±0.15)
0.047
(1.2 Max.)
0.030
(0.75 +0.2
-0 )
0.010±0.002
(0.25±0.05)
2B
(TD)
0.079±0.008
(2.0±0.2)
––––
0.035±0.004
(0.90±0.1)
––––
2B
(TE)
0.075±0.008
(1.9±0.2)
0.047
(1.2 Max.)
0.039±0.004
(1.0±0.1)
0.010±0.002
(0.25±0.05)
8.2 Reel
Central hole
B
C
D
E
W
A
Dimensions - inches (mm)
Tape
A
B
W
C
D
E
TD
7.008±0.079
(178±2.0)
2.362±0.079
(60±2.0)
0.394±0.047
(10.0±1.2)
0.512±0.020
(13±0.5)
0.827±0.031
(21±0.8)
0.079±0.020
(2.0±0.5)
TE
7.008±0.079
(178±2.0)
2.362±0.079
(60±2.0)
0.394±0.047
(10.0±1.2)
0.512±0.020
(13±0.5)
0.827±0.031
(21±0.8)
0.079±0.020
(2.0±0.5)
Bolivar Drive
■
P.O. Box 547
■
Bradford, PA 16701
■
USA
■
814-362-5536
■
Fax 814-362-8883
PAGE 4 OF 4
■
www.koaspeer.com
Specifications given herein may be changed at any time without pr ior notice. Please confir m technical specifications before you order and/or use.
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