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PTC Silicon Die thermistors are used in
wire-bonding and specialized reflow-soldering
applications.
TABLE 3 Resistance Multipliers at Specified Temperature
TEMPERATURE 10 TO 68 OHMS 82 TO 150 OHMS 180 TO 470 OHMS 560 TO 1200 OHMS 1500 TO 5600 OHMS 6800 TO 10,000 OHMS
**(–55°C) 0.615 0.582 0.560 0.550 0.515 0.510
–15°C 0.790 0.770 0.755 0.740 0.730 0.730
0°C 0.863 0.847 0.838 0.835 0.825 0.825
25°C 1.000 1.000 1.000 1.000 1.000 1.000
50°C 1.160 1.170 1.180 1.200 1.230 1.190
75°C 1.350 1.370 1.400 1.420 1.450 1.400
100°C 1.545 1.584 1.623 1.656 1.670 1.610
**(125°C) 1.750 1.800 1.860 1.920 1.960 1.830
**Multipliers applicable to military grade only.
PTC Chip Thermistors
Board attachment by either wire bonding, conductive
epoxy, or a combination of both may be used. Solder
attachment may be performed using different solder
configurations, however, it is not recommended.
Engineering Information
*Dissipation Constant: See below
*Thermal Time Constant: See below
Resistance Coefficient: See PTC table 1
Power Rating: 0.0625 watts @ 25°C
derated to 125°C-See Table 1
Operating Range: –55°C to 125°C
Standard Configuration
Ordering Information
Tolerance Code
Part Number
QTC11-100K
K= 10%
J= 5% G= 2%
F= 1%
Silicon Core
100
80
60
40
20
0
-.55 -.20 0 20 40 80 120 140 160
25°C
125°C
TABLE 2 Derating Curve for High Ambient Temperatures
Ambient Temperature (°C)
Percent of Maximum Power
Gold Terminations Tolerance:
Standard PTC Thermistor Die
RESISTANCE PART L W T NOMINAL
OHMS @ 25°C NO. +/– .010 +/– .010 +/– .010 D.C.* T.C.*
10 QTC11 –100 .032 .032 .028 2MW 8 sec.
12 –120 .032 .032 .028 2MW 8 sec.
15 –150 .032 .032 .050 2MW 8 sec.
18 –180 .032 .032 .050 2MW 8 sec.
22 –220 .032 .032 .050 2MW 8 sec.
27 –270 .032 .032 .050 2MW 8 sec.
33 –330 .0332 .032 .050 2MW 8 sec.
39 –390 .032 .032 .050 2MW 8 sec.
47 –470 .032 .032 .050 2MW 8 sec.
56 –560 .032 .032 .050 2MW 8 sec.
68 –680 .032 .032 .050 2MW 8 sec.
82 –820 .032 .032 .050 2MW 8 sec.
100 –101 .032 .032 .050 2MW 8 sec.
120 –121 .032 .032 .050 2MW 8 sec.
150 –151 .032 .032 .050 2MW 8 sec.
180 –181 .032 .032 .050 2MW 8 sec.
220 –221 .032 .032 .050 2MW 8 sec.
270 –271 .032 .032 .050 2MW 8 sec.
330 –331 .032 .032 .050 2MW 8 sec.
390 –391 .032 .032 .050 2MW 8 sec.
470 –471 .032 .032 .050 2MW 8 sec.
560 –561 .032 .032 .050 2MW 8 sec.
680 –681 .032 .032 .050 2MW 8 sec.
750 –751 .032 .032 .050 2MW 8 sec.
820 –821 .032 .032 .050 2MW 8 sec.
1000 –102 .032 .032 .050 2MW 8 sec.
1200 –122 .032 .032 .050 2MW 8 sec.
1500 –152 .032 .032 .050 2MW 8 sec.
1800 –182 .032 .032 .050 2MW 8 sec.
2200 –222 .038 .038 .072 2MW 8 sec.
2700 –272 .038 0.38 .072 2MW 8 sec.
3300 –332 .038 .038 .072 2MW 8 sec.
3900 –392 .038 .038 .072 2MW 8 sec.
4700 –472 .038 .038 .072 2MW 8 sec.
5600 –562 .038 .038 .072 2MW 8 sec.
6800 –682 .038 .038 .072 2MW 8 sec.
8200 –822 .030 .030 .072 2MW 8 sec.
10000 –103 .022 .022 .072 2MW 8 sec.
*D.C. = Dissipation Constant MW/C
*T.C. = Time Constant Seconds in Free Air
Chip
PTC THERMISTORS
TABLE 1 Part Dimensions
