PTC Chip Thermistors S t a n d a r d P TC T h e r m i s t o r D i e Engineering Information * Dissipation Constant: * Thermal Time Constant: Resistance Coefficient: Power Rating: wire-bonding and specialized reflow-soldering applications. B oard 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. Operating Range: TABLE 1 Part Dimensions Silicon Core Ordering Information Q TC 11 - 10 0 K Tolerance Code Part Number Tolerance: K= 10% J= 5% G= 2% F= 1% Percent of Maximum Power TABLE 2 Derating Curve for High Ambient Temperatures 100 25C 80 60 L W T +/- .010 +/- .010 +/- .010 NOMINAL D.C.* T.C.* 10 12 15 QTC11 -100 -120 -150 .032 .032 .032 .032 .032 .032 .028 .028 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 18 22 27 -180 -220 -270 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 33 39 47 -330 -390 -470 .0332 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 56 68 82 -560 -680 -820 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 100 120 150 -101 -121 -151 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 180 220 270 -181 -221 -271 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 330 390 470 -331 -391 -471 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 560 680 750 -561 -681 -751 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 820 1000 1200 -821 -102 -122 .032 .032 .032 .032 .032 .032 .050 .050 .050 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 1500 1800 2200 -152 -182 -222 .032 .032 .038 .032 .032 .038 .050 .050 .072 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 2700 3300 3900 -272 -332 -392 .038 .038 .038 0.38 .038 .038 .072 .072 .072 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 4700 5600 6800 -472 -562 -682 .038 .038 .038 .038 .038 .038 .072 .072 .072 2MW 2MW 2MW 8 sec. 8 sec. 8 sec. 8200 10000 -822 -103 .030 .022 .030 .022 .072 .072 2MW 2MW 8 sec. 8 sec. *D.C. = Dissipation Constant MW/C *T.C. = Time Constant Seconds in Free Air 40 20 125C 0 -.55 PART NO. Chip RESISTANCE OHMS @ 25C Standard Configuration Gold Terminations See below See below See PTC table 1 0.0625 watts @ 25C derated to 125C-See Table 1 -55C to 125C -.20 0 20 40 80 120 140 160 Ambient Temperature (C) 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 0.615 0.582 0.560 0.550 0.515 0.510 **(-55C) -15C 0.790 0.770 0.755 0.740 0.730 0.730 0C 0.863 0.847 0.838 0.835 0.825 0.825 25C 1.000 1.000 1.000 1.000 1.000 1.000 50C 1.160 1.170 1.180 1.200 1.230 1.190 75C 1.350 1.370 1.400 1.420 1.450 1.400 100C 1.545 1.584 1.623 1.656 1.670 1.610 1.750 1.800 1.860 1.920 1.960 1.830 **(125C) **Multipliers applicable to military grade only. 800-554-4784 w w w. t h e r m i s t o r. c o m 23 PTC THERMISTORS PTC Silicon Die thermistors are used in