SMT POWER INDUCTORS Shielded Drum Core - P1170 Series Low profile and suitable for compact surface area mounting Large permissible DC current Low DC resistance Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C Part Number P1170.901T P1170.142T P1170.222T P1170.302T P1170.392T P1170.502T P1170.642T P1170.103T P1170.123T P1170.153T P1170.183T P1170.223T P1170.273T P1170.333T P1170.393T P1170.473T P1170.563T P1170.683T P1170.823T P1170.104T P1170.124T P1170.154T P1170.184T P1170.224T P1170.274T P1170.334T P1170.394T P1170.474T P1170.564T P1170.684T P1170.824T P1170.105T Inductance @Irated ( µ H) MIN 0.6 0.9 1.5 2.0 2.5 3.3 4.2 7.5 9.0 11.3 13.5 16.5 20.3 24.8 29.3 35.3 42.0 51.0 61.5 75.0 90.0 113 135 165 203 248 293 353 420 510 615 750 Inductance @0A DC ( µ H) 0.9±30% 1.4±30% 2.2±30% 3.0±30% 3.9±30% 5.0±30% 6.4±30% 10±20% 12±20% 15±20% 18±20% 22±20% 27±20% 33±20% 39±20% 47±20% 56±20% 68±20% 82±20% 100±20% 120±20% 150±20% 180±20% 220±20% 270±20% 330±20% 390±20% 470±20% 560±20% 680±20% 820±20% 1000±20% DCR (m Ω ) Irated 1 (A DC ) TYP 2.0 3.0 4.0 5.4 7.4 8.5 13 19 21 22 32 36 41 56 60 79 85 97 127 182 201 225 249 319 363 424 561 629 851 950 1241 1398 13 11 9.6 8.3 7.0 6.4 5.3 4.4 4.2 4.0 3.4 3.0 2.7 2.6 2.4 2.2 2.0 1.8 1.7 1.4 1.3 1.2 1.1 1.0 0.91 0.82 0.72 0.68 0.63 0.57 0.52 0.46 MAX 2.9 4.2 5.7 7.7 10 12 18 25 27 30 40 45 51 70 75 100 110 120 158 230 253 280 310 400 460 530 690 770 1060 1200 1550 1750 Saturation 2 Current @25°C (A) 14 13 9.7 8.3 7.0 6.4 5.8 4.6 4.3 4.0 3.4 3.0 2.7 2.6 2.4 2.2 2.0 1.8 1.7 1.4 1.3 1.2 1.1 1.0 0.91 0.82 0.72 0.68 0.63 0.57 0.52 0.46 Heating 3 Current (A) 13 11 9.6 8.3 7.1 6.6 5.3 4.4 4.2 4.1 3.4 3.2 3.0 2.6 2.5 2.2 2.1 1.9 1.7 1.4 1.4 1.3 1.2 1.1 1.0 0.93 0.81 0.77 0.66 0.62 0.54 0.51 Core Loss Factor K 4 136.3 165.0 212.1 244.7 275.7 311.9 357.2 424.2 471.3 548.5 578.4 666.6 734.2 813.8 879.9 977.3 1041.8 1144.6 1260.2 1413.9 1533.2 1710.4 1889.9 2101.8 2327.8 2554.4 2775.7 3057.7 3317.6 3660.4 4007.2 4437.0 Notes from Table 1. The rated current as listed is either the saturation current or the heating current depending on which value is lower. 2. The saturation current is the current which causes the inductance to drop to 65% (or 75%) of its nominal inductance at zero bias. This current is determined by placing the component at room ambient (25°C), and applying a short duration pulse current (to eliminate self-heating effects) to the component. 3. The heating current is the dc current, which causes the temperature of the part to increase by not more than 40°C. This current is determined by extending the terminals of the Estimated Temperature Rise: component with 30mm length 28 gauge buss wires and applying the current to the device for 30 minutes. The tem.833 o (C) perature is measured by placing the thermocouple between Trise = [Total loss (mW) / 5.376] the winding and the shield. Total loss = Copper loss + Core loss (mW) 4. In high volt*time applications, additional heating in the Copper loss = Irms2 x DCR (Typical) (mW) component can occur due to core losses in the inductor which may necessitate derating the current in order to limit Irms = [IDC2 + ∆I2/12]1/2 (A) the temperature rise of the component. In order to deterCore loss = 2.92 x 10-7 x f (kHz)1.1 x (K x ∆I)2.15 (mW), mine the approximate total loss (or temperature rise) for a given application, both copper losses and core losses where f varies between 25 kHz and 300 kHZ, and B less should be taken into account. than 2000 Gauss. Schematic Mechanical .315 8,00 .315 8,00 .039 1,00 2 XXX .472 12,00 Dimensions: Inches mm 1 1 .236 6,00 .075 1,91 2 1 .039 1,00 .197 5,00 2 .472 12,00 .366 9,30 SUGGESTED PAD LAYOUT Unless otherwise specified, all tolerances are ± .010 0,25 Weight . . . . . . . . 3.2 grams Tape & Reel . . . . . . 500/reel .262 6,65 .630 16,00 .945 24,00 TAPE & REEL LAYOUT US 858 674 8100 • UK 44 1483 401 700 • France 33 3 84 35 04 04 • Singapore 65 287 8998 • Taiwan 886 2 2698 0228 • Hong Kong 852 2788 6588 • http://www.pulseeng.com 13 PC500.B (5/02)