MF72 Power NTC Thermistor MF72 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 the 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. Specification Dimensions (mm) Add suffix “L” + Fig. # to specify optional leads. Part No. / Dim(mm) / Sym Dmax Tmax d +/- 0.05 F1 +/-1 F2 +/-1.5 Straight Lead Wire Fig. II / I Fig. II / I Fig. II / I Lmin. b L2+/-2 Curved Lead Wire A +/-.5 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 Application Characteristics 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. • 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 R25 Max. Steady State Current Approx. R of Max. Current Dissip. Coef. Max. Load Capacitance in uF (Ω) (A) (Ω) (mW/ºC) (S) 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 MF72-200D5 200 0.1 18.70 6 18 MF72-5D7 5 2 0.283 10 MF72-8D7 8 1 0.539 MF72-10D7 10 1 MF72-12D7 12 MF72-16D7 Max. Load Capacitance in uF R25 Max. Steady State Current Approx. R of Max. Current Dissip. Coef. Thermal Time Constant (Ω) (A) (Ω) (mW/ºC) (S) 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 √ 47 MF72-400D9 400 0.2 30.30 11 32 188 47 √ 88 22 MF72-2.5D11 2.5 5 0.095 13 43 600 150 √ 30 224 56 MF72-3D11 3 5 0.100 13 43 600 150 √ 9 28 224 56 MF72-4D11 4 4 0.150 13 44 600 150 √ 0.616 9 27 224 56 MF72-5D11 5 4 0.156 13 45 600 150 √ 1 0.816 9 27 224 56 MF72-6D11 6 3 0.240 13 45 880 220 √ 16 0.7 1.003 9 27 224 56 MF72-8D11 8 3 0.255 14 47 880 220 √ MF72-22D7 22 0.6 1.108 9 27 224 56 MF72-10D11 10 3 0.275 14 47 880 220 √ MF72-33D7 33 0.5 1.485 10 28 188 47 MF72-12D11 12 2 0.462 14 48 880 220 √ MF72-200D7 200 0.2 11.65 11 28 188 47 MF72-16D11 16 2 0.470 14 50 880 220 √ MF72-3D9 3 4 0.120 11 35 272 68 √ MF72-20D11 20 2 0.512 15 52 880 220 √ MF72-4D9 4 3 0.190 11 35 272 68 √ MF72-22D11 22 2 0.563 15 52 880 220 √ MF72-5D9 5 3 0.210 11 34 272 68 √ MF72-30D11 30 1.5 0.667 15 52 880 220 √ MF72-6D9 6 2 0.315 11 34 272 68 √ MF72-33D11 33 1.5 0.734 15 52 880 220 √ MF72-8D9 8 2 0.400 11 32 400 100 √ MF72-50D11 50 1.5 1.021 15 52 880 220 √ MF72-10D9 10 2 0.458 11 32 400 100 √ MF72-60D11 60 1.5 1.215 15 52 880 220 √ MF72-12D9 12 1 0.652 11 32 400 100 √ MF72-80D11 80 1.2 1.656 15 52 600 150 √ MF72-16D9 16 1 0.802 11 31 400 100 √ MF72-1.3D13 1.3 7 0.062 13 60 880 220 √ MF72-20D9 20 1 0.864 11 30 600 150 √ MF72-1.5D13 1.5 7 0.073 13 60 880 220 √ MF72-22D9 22 1 0.950 11 30 600 150 √ MF72-2.5D13 2.5 6 0.088 13 60 880 220 √ MF72-30D9 30 1 1.022 11 30 600 150 √ MF72-3D13 3 6 0.092 14 60 880 220 √ MF72-33D9 33 1 1.124 11 30 600 150 √ MF72-4D13 4 5 0.120 15 67 880 220 √ MF72-50D9 50 1 1.252 11 30 600 150 √ MF72-5D13 5 5 0.125 15 68 880 220 √ MF72-60D9 60 0.8 1.502 11 30 600 150 √ MF72-6D13 6 4 0.170 15 65 880 220 √ MF72-80D9 80 0.8 2.010 11 30 272 68 √ MF72-7D13 7 4 0.188 15 65 1320 330 √ Part No. Thermal Time Constant UL Part No. UL Main Techno-Parameter (cont.) Operating Temperature: -55 to 200ºC Max. Load Capacitance in uF R25 Max. Steady State Current Approx. R of Max. Current Dissip. Coef. (Ω) (A) (Ω) (mW/ºC) (S) 120 VAC 240 VAC MF72-8D13 8 4 0.194 15 60 1320 330 √ MF72-10D13 10 4 0.206 15 65 1320 330 √ MF72-12D13 12 3 0.316 16 65 1320 330 √ MF72-15D13 15 3 0.335 16 60 1320 330 MF72-16D13 16 3 0.338 16 60 1320 MF72-20D13 20 3 0.372 16 65 MF72-30D13 30 2.5 0.517 16 MF72-47D13 47 2 0.810 MF72-120D13 120 1.2 MF72-1.3D15 1.3 MF72-1.5D15 Max. Load Capacitance in uF R25 Max. Steady State Current Approx. R of Max. Current Dissip. Coef. Thermal Time Constant (Ω) (A) (Ω) (mW/ºC) (S) 120 VAC 240 VAC MF72-47D15 47 3 0.680 21 86 1320 330 √ MF72-120D15 120 1.8 1.652 22 87 1320 330 √ MF72-0.7D20 0.7 11 0.018 25 89 1880 470 √ √ MF72-1.3D20 1.3 9 0.037 24 88 1880 470 √ 330 √ MF72-3D20 3 8 0.055 24 88 1880 470 √ 1320 330 √ MF72-5D20 5 7 0.087 23 87 2240 560 √ 65 1320 330 √ MF72-6D20 6 6 0.113 25 103 2240 560 √ 17 65 880 220 √ MF72-8D20 8 6 0.142 25 105 2240 560 √ 2.124 16 65 880 220 √ MF72-10D20 10 6 0.162 24 102 2240 560 √ 8 0.048 18 68 1320 330 √ MF72-12D20 12 5 0.195 24 100 2720 680 √ 1.5 8 0.052 19 69 1320 330 √ MF72-16D20 16 5 0.212 25 100 2720 680 √ MF72-3D15 3 7 0.075 18 76 1320 330 √ MF72-0.7D25 0.7 12 0.014 30 120 2240 560 MF72-5D15 5 6 0.112 20 76 1880 470 √ MF72-1.5D25 1.5 10 0.027 30 121 2240 560 MF72-6D15 6 5 0.155 20 80 1880 470 √ MF72-3D25 3 9 0.044 32 124 2240 560 MF72-7D15 7 5 0.173 20 80 1880 470 √ MF72-5D25 5 8 0.070 32 125 2720 680 MF72-8D15 8 5 0.178 20 80 1880 470 √ MF72-8D25 8 7 0.114 33 125 2720 680 MF72-10D15 10 5 0.180 20 75 1880 470 √ MF72-10D25 10 7 0.130 32 125 2720 680 MF72-12D15 12 4 0.250 20 75 1880 470 √ MF72-12D25 12 6 0.156 32 126 3280 820 MF72-15D15 15 4 0.268 21 85 1880 470 √ MF72-16D25 16 6 0.160 35 126 3280 820 MF72-16D15 16 4 0.276 21 70 1880 470 √ MF72-20D15 20 4 0.288 17 86 1880 470 √ MF72-30D15 30 3.5 0.438 18 75 1320 330 √ Part No. Thermal Time Constant UL Part No. UL Note: Unless otherwise specified, the allowable tolerance of R is +/- 20% 25 Specifications may change without notice. C US 8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada Tel: (514) 739-3274 • 1-800-561-7207 • Fax: (514) 739-2902 • E-mail: [email protected] Website: www.cantherm.com | Division of Microtherm 2012/Nov MF72