mf 7 2 power ntc thermistor
dimensions (mm) power ntc thermistor. the mf72 series power ntc thermistors provide inrush current suppression for sensitive electronics. connecting a mf72 in series with the power source will limit th e current surges typically created at turn on. once the circuit is energized the resistance of the mf72 will decrease rapidly to a very low value, power consumption can be ignored and there will be no effect on normal operating current. using the mf72 power ntc thermistor is a most cost-effective way to curb surge current and protect sensitive electronics from damage. mf 7 2 specification part no. / dim (mm) / sym dmax tmax d +/- 0.05 fig. ii / i f 1 +/-1 fig. ii / i f 2 +/-1.5 fig. ii / i straight lead wire curved lead wire a +/-.5 lmin. b l 2 +/-2 mf72- ? d5 7 5 0.6 / 0.45 5 / 2.5 3 25 * 17/5 8/5 1.65 mf72- ? d7 9 5 0.6 5 3 25 17/5 8/5 1.9 mf72- ? d9 11 5.5 0.8 / 0.6 7.5 / 5 5 / 3 25 17/5 8/5 2.3 mf72- ? d11 13 5.5 0.8 7.5 / 5 5 / 3 25 17/5 8/5 2.6 mf72- ? d13 15.5 6 0.8 7.5 5 25 17/5 8/5 2.6 mf72- ? d15 17.5 6 0.8 10 / 7.5 5 25 17/5 8/5 2.8 mf72- ? d20 22.5 7 1.0 10 / 7.5 / 25 * / / 3.5 mf72- ? d25 27.5 8 1.0 10 / 25 * / / 3.5 remark b, 17/5 17 indicates the long bent lead wire, 5 indicates the short bent lead wire (fig. iii) illustration: in general, the long bent lead wire is used, see figure ii * straight leads are standard add suffix l + fig. # to specify optional leads.
part no. r 25 (?) max. steady state current (a) approx. r of max. current (?) dissip . coef. (mw/oc) thermal time constant (s) max. load capacitance in uf ul 120 vac 240 vac mf72-5d5 5 1 0.353 6 20 188 47 mf72-10d5 10 0.7 0.771 6 20 188 47 mf72-60d5 60 0.3 1.878 6 18 188 47 mf72-200d5 200 0.1 18.70 6 18 88 22 mf72-5d7 5 2 0.283 10 30 224 56 mf72-8d7 8 1 0.539 9 28 224 56 mf72-10d7 10 1 0.616 9 27 224 56 mf72-12d7 12 1 0.816 9 27 224 56 mf72-16d7 16 0.7 1.003 9 27 224 56 mf72-22d7 22 0.6 1.108 9 27 224 56 mf72-33d7 33 0.5 1.485 10 28 188 47 mf72-200d7 200 0.2 11.65 11 28 188 47 mf72-3d9 3 4 0.120 11 35 272 68 mf72-4d9 4 3 0.190 11 35 272 68 mf72-5d9 5 3 0.210 11 34 272 68 mf72-6d9 6 2 0.315 11 34 272 68 mf72-8d9 8 2 0.400 11 32 400 100 mf72-10d9 10 2 0.458 11 32 400 100 mf72-12d9 12 1 0.652 11 32 400 100 mf72-16d9 16 1 0.802 11 31 400 100 mf72-20d9 20 1 0.864 11 30 600 150 mf72-22d9 22 1 0.950 11 30 600 150 mf72-30d9 30 1 1.022 11 30 600 150 mf72-33d9 33 1 1.124 11 30 600 150 mf72-50d9 50 1 1.252 11 30 600 150 mf72-60d9 60 0.8 1.502 11 30 600 150 mf72-80d9 80 0.8 2.010 11 30 272 68 application can be installed into the power circuits of: ? power supplies and inverters ? uninterruptible power supplies ? energy saving lamps ? electronic ballasts ? filament protection of various types of lamps ? some types of heaters ? for higher power circuits ask about the mf73 and mf74 series surge suppressors. characteristics ? small size and fast response ? high power handling capability ? fast response to surge current ? high material constant (b value) ? low residual resistance ? wide operating temperature range -55 to +200c ? r25 allowable tolerance is 20% ? long-term stability and reliability ? ul 1434 file# e241319 ? cqc file# 04001010556 main techno-parameter operating temperature: -55 to 200oc part no. r 25 (?) max. steady state current (a) approx. r of max. current (?) dissip . coef. (mw/oc) thermal time constant (s) max. load capacitance in uf ul 120 vac 240 vac mf72-120d9 120 0.8 3.015 11 30 272 68 mf72-200d9 200 0.5 5.007 11 32 188 47 mf72-400d9 400 0.2 30.30 11 32 188 47 mf72-2.5d11 2.5 5 0.095 13 43 600 150 mf72-3d11 3 5 0.100 13 43 600 150 mf72-4d11 4 4 0.150 13 44 600 150 mf72-5d11 5 4 0.156 13 45 600 150 mf72-6d11 6 3 0.240 13 45 880 220 mf72-8d11 8 3 0.255 14 47 880 220 mf72-10d11 10 3 0.275 14 47 880 220 mf72-12d11 12 2 0.462 14 48 880 220 mf72-16d11 16 2 0.470 14 50 880 220 mf72-20d11 20 2 0.512 15 52 880 220 mf72-22d11 22 2 0.563 15 52 880 220 mf72-30d11 30 1.5 0.667 15 52 880 220 mf72-33d11 33 1.5 0.734 15 52 880 220 mf72-50d11 50 1.5 1.021 15 52 880 220 mf72-60d11 60 1.5 1.215 15 52 880 220 mf72-80d11 80 1.2 1.656 15 52 600 150 mf72-1.3d13 1.3 7 0.062 13 60 880 220 mf72-1.5d13 1.5 7 0.073 13 60 880 220 mf72-2.5d13 2.5 6 0.088 13 60 880 220 mf72-3d13 3 6 0.092 14 60 880 220 mf72-4d13 4 5 0.120 15 67 880 220 mf72-5d13 5 5 0.125 15 68 880 220 mf72-6d13 6 4 0.170 15 65 880 220 mf72-7d13 7 4 0.188 15 65 1320 330
8415 mountain sights avenue ? montreal (quebec), h4p 2b8, canada tel: (514) 739-3274 ? 1-800-561-7207 ? fax: (514) 739-2902 ? e-mail: sales@cantherm.com website: www.cantherm.com | division of microtherm 2012ov m72 c us part no. () max. stea state current () pprox. of max. current () dissip . coef. (mwc) thermal time constant (s) max. oa capacitance in uf c c mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . . mf-d . mf-d . . mf-.d . . mf-.d . . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . . operating temperature: -55 to 200oc m72-0.7d25 0.7 12 0.014 30 120 2240 560 m72-1.5d25 1.5 10 0.027 30 121 2240 560 m72-3d25 3 9 0.044 32 124 2240 560 m72-5d25 5 8 0.070 32 125 2720 680 m72-8d25 8 7 0.114 33 125 2720 680 m72-10d25 10 7 0.130 32 125 2720 680 m72-12d25 12 6 0.156 32 126 3280 820 m72-16d25 16 6 0.160 35 126 3280 820 note: unless otherwise specified, the allowable tolerance of r 25 is +/- 20% specifications may change without notice. part no. () max. stea state current () pprox. of max. current () dissip . coef. (mwc) thermal time constant (s) max. oa capacitance in uf c c mf-d . mf-d . . mf-.d . . mf-.d . . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . mf-d . main techno-parameter (cont.)
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