linear positive temperature coefficient
flat chip resistors (for automotive)
features
•
SMD thin film resistors with
thermo-perceptivity
•
Various TCRs +150 - +4500×10
−6
/K are available
•
Operating temperature range -155°C
Rated ambient temperature: 85°C
•
The evaluation based on AEC-Q200 has been examined
•
Coating color: orange
•
Products meet EU RoHS requirements
L
T73V
EU
thermal
protection
L
c
c
W
t
d
dimensions and construction
Type
2A
(0805)
Ceramic Substrate
Solder Plating
Ni Plating
Protective Resistive
Coating Film
Inner
Electrode
Dimensions
inches
(mm)
L
W
c
d
t
+.008
.079±.008 .049±.008 .016±.008
.012
−.004
.020±.004
(2.0±0.2) (1.25±0.2) (0.4±0.2)
(0.3
+0.2
)
(0.5±0.1)
−0.1
.126±.008 .063±.008 .020±.012
(3.2±0.2) (1.6±0.2) (0.5±0.3)
−.004
.016
+.008
.024±.004
(0.4
+0.2
)
(0.6±0.1)
−0.1
2B
(1206)
ordering information
LT73V
Type
2B
Power
Rating
2A:0.1W
2B:0.125W
T
Termination
Material
T:Sn
TD
Taping
TD:4mm pitch paper
TE:4mm pitch
plastic embossed
102
Nominal
Resistance
3 digits
J
Resistance
Tolerance
G:±2%
J :±5%
0900
T.C.R.
(×10
−6
/K)
4 digits
applications and ratings
Type
2A
2B
Power
Rating
0.1W
0.125W
Max.
Working
Voltage
50V
75V
Max.
Overload
Voltage
100V
150V
Thermal
Time
Constant*
1.0s
1.5s
Thermal
Dissipation
Constant*
1.37mW/°C
1.47mW/°C
Rated
Ambient
Temperature
+85°C
Operating
Temperature
Range
−55°C - +155°C
Taping & Q’ty/Reel (pcs)
TD
5,000
5,000
TE
4,000
4,000
* Thermal time constant and dissipation constant are reference values, which are values of elements and vary with connecting or fixing methods.
T.C.R.
.
−6
(×10 /K)
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
T.C.R.
Tolerance
±100×10 /K
±150×10
−6
/K
−6
(Ω)
Resistance Range (E24)
2A
2k - 15k
1k - 8.2k
1k - 6.8k
510 - 4.7k
510 - 4.7k
510 - 3k
100 - 1k
51 - 510
2B
2k - 22k
1k - 15k
1k - 8.2k
1k - 6.8k
510 - 6.8k
510 - 6.2k
100 - 2k
51 - 510
Resistance
Tolerance
G: ±2%
±15%
J: ±5%
±10%
T.C.R. Measuring Temperature: +25°C - +75°C
Rated voltage =
√Power
Rating×Resistance value or Max. working voltage, whichever is lower.
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
186
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
L
T73V
linear positive temperature coefficient
flat chip resistors (for automotive)
environmental applications
Derating Curve
100
% Percent rated power
80
60
40
20
0
-60
-40
-55
Temperature Characteristics of Resistance
70
60
50
40
30
20
10
0
−10
−20
−30
−40
−75
% Resistance changing rate
3300
2400
1600
-20
0
80 100 120
85
Ambient temperature (°C)
20
40
60
140
160
155
−50
−25
0
25
50
75
100
125
150
Ambient temperature (°C)
For resistors operated at an ambient temperature of 85°C or above,
a power rating shall be derated in accordance with the above derating curve.
Approximate Expression for Resistance- Temperature Characteristics
Values are not guaranteed but typical.
R
T
=R
25
(C
0
+C
1
T+C
2
T
2
) R
T
: T°C
R
25
: 25°C
T: (°C)
C
0
, C
1
, C
2
:
R
T
: Resistance value at T°C
R
25
: Resistance value at 25°C
T: Ambient temperature (°C)
C
0
, C
1
, C
2
: Constants
T.C.R.
(×10
−6
/K)
C
0
C
1
C
2
3000
3300
3600
3900
4200
4500
0.9288
0.9232
0.9175
0.9099
0.9026
0.8948
0.0028
0.0030
0.0032
0.0035
0.0038
0.0041
1.9983×10
−6
2.9980×10
−6
4.0000×10
−6
4.0064×10
−6
3.9964×10
−6
4.0064×10
−6
Performance Characteristics
Parameters
Resistance
T.C.R.
Overload (Short Time)
Resistance to
Soldering Heat
Rapid Change of
Temperature
Moisture Resistance
Endurance at 85°C
High Temperature
Load Life
High temperature
Exposure
Low Temperature
Exposure
Performance Requirements
∆R±(%+0.05Ω)
Limit
Typical
Within specified
−
tolerance
Within specified T.C.R.
−
1%
1%
2% : TCR≤+3300
5% : TCR≥+3600
3%
2% : TCR≤+3300
5% : TCR≥+3600
2% : TCR≤+3300
5% : TCR≥+3600
2% : TCR≤+3300
5% : TCR≥+3600
2%
0.02%
0.10%
0.53%
2.59%
0.15%
0.30%
0.76%
0.40%
2.17%
0.81%
3.20%
−0.10%
Test Methods
25°C
+25°C/+75°C
Rated voltage × 2.5 or Max. overload Vol., whichever is lower,
for 5 seconds
260°C ± 5°C, 10 seconds ± 1 second
−55°C (30min.)/+155°C (30min.), 1000 cycles
85°C ± 2°C, 85% ± 5% RH, 1/10 rated power,
1.5h ON/0.5h OFF cycle. 1000 hours
85°C ± 2°C, 1000 hours
1.5h ON/0.5h OFF cycle.
125°C, Rated voltage, 1000 hours
155°C, 1000h
−55°C, 1000h
Please pay attention not to be applied ESD, it may cause of resistance change.
Actual Value (Out of guarantee)
Test Items
ESD
Reference
500V
Test Methods
Human model, 100pF, 1.5kΩ
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
187
thermal
protection
T.C.R.
(×10
−6
/K)
4500
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