THERMAL SENSORS / CIRCUIT PROTECTORS
TECHNOLOGY OF TOMORROW
THERMAL SENSORS
LINEAR PTC, THIN FILM
LT 73
STRUCTURE
1
2
3
4
5
6
7
8
Ceramic substrate
Metal film resistor element
Top termination
Bottom termination
End termination
Protective layer
Nickel barrier
Sn Pb Plating
IDENTIFICATION
PRODUCT CODE
LT73
COATING COLOR
Orange
MARKING
Black, 4 digits
TYPE DESIGNATION (HOW TO ORDER)
Old Part No.
New Part No.
LT73
LT73
PRODUCT CODE
T.C.R.
(ppm/K)
1000
2A
2A
STYLE
J
L
RESISTANCE
TOLERANCE
TERMINATION
SURFACE MATERIAL
T: Sn
L: Sn/Pb
TD
TD
TAPING*
*Please see “PACKAGING”
10K
103
NOMINAL
RESISTANCE
3 digits
J
RESISTANCE
TOLERANCE
1000
T.C.R.
(ppm/K)
FEATURES
■
■
■
■
■
■
■
■
Resistance value changes in linear positive way to temperature
Suitable for temperature control in various industrial equipment
90/10 solder plated terminations
Anti-leaching nickel barrier terminations
25 specific temperature characteristics
Rated ambient temperature: + 70° C
Operating temperature range: -40° C ... + 125° C
Suitable for reflow and wave soldering
DIMENSIONS (mm)
SIZE
0805
1206
TYPE
LT73 2A
LT73 2B
L ± 0.2
2.0
3.2
W ± 0.2
1.25
1.60
t ± 0.1
0.5
0.6
c
0.4 ± 0.2
0.5 ± 0.3
d
+ 0.2
- 0.1
0.3
0.4
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
RATING
SIZE
TYPE
T.C.R.*
150 • 250 • 350 • 450 • 500 ppm/K
600 • 700 • 800 • 900 ppm/K
1000 • 1200 • 1400 ppm/K
1600 • 1800 ppm/K
2000 • 2200 • 2400 ppm/K
2600 • 2800 ppm/K
3000 • 3300 • 3600 ppm/K
3900 ppm/K
4200 ppm/K
4500 ppm/K
150 • 250 • 350 • 450 • 500 ppm/K
600 • 700 • 800 • 900 ppm/K
1000 • 1200 • 1400 ppm/K
1600 • 1800 ppm/K
2000 • 2200 • 2400 ppm/K
2600 • 2800 ppm/K
3000 • 3300 • 3600 ppm/K
3900 ppm/K
4200 ppm/K
4500 ppm/K
POWER
RATING
MAX.
WORKING
VOLTAGE
MAX.
T.C.R.
OVERLOAD
TOLERANCE
VOLTAGE
± 100 ppm/K
± 150 ppm/K
± 15%
0.1 W
50 V
100 V
± 10%
RESISTANCE RANGE
E24 • G (±2%)
2 kΩ ... 24 kΩ
E24 • J (±5%)
––
1 kΩ ... 20 kΩ
1 kΩ ... 13 kΩ
510
Ω
... 4.7 kΩ
510
Ω
... 4.7 kΩ
510
Ω
... 3 kΩ
100
Ω
... 1 kΩ
51
Ω
... 510
Ω
––
1 kΩ ... 43 kΩ
1 kΩ ... 27 kΩ
1 kΩ ... 10 kΩ
510
Ω
... 9.1 kΩ
510
Ω
... 6.2 kΩ
100
Ω
... 2 kΩ
51
Ω
... 510
Ω
0805
LT73 2A
––
± 100 ppm/K
± 150 ppm/K
± 15%
0.125 W
75 V
150 V
± 10%
2 kΩ ... 51 kΩ
1206
LT73 2B
––
* T.C.R. Measuring Temperature: + 25° C / + 75° C
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
68
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