SMT POWER INDUCTORS Wirewound - PD0120NL Series Height: 8.2mm Max Footprint: 16.2mm x 16.0mm Max Current Rating: up to 15.4A Inductance Range: 1.2µH to 55.4µH Electrical Specifications @ 25°C — Operating Temperature -40°C to +125°C 7 DCR (mΩ) Part Number 5. 7 Inductance @ Irated (µH ±10%) Irated 1 (ADC) TYP MAX Inductance @ 0 ADC (µH ±10%) Saturation Current 2 (A) 25°C 100°C PD0120.102NL PD0120.152NL PD0120.222NL 1.2 1.8 2.5 15.4 14.2 11.4 1.5 2.5 4.0 2.0 3.0 4.2 1.2 1.8 2.6 29 24.3 20.6 PD0120.332NL PD0120.532NL PD0120.702NL PD0120.113NL PD0120.183NL PD0120.223NL PD0120.373NL PD0120.503NL 4.5 5.6 7.1 12.0 18.3 22.6 39.9 55.4 11.2 10.4 8.6 7.6 6.4 5.3 4 3.4 6.3 8.0 9.5 15.0 21.5 30.5 51.5 75.5 6.8 8.5 10.0 16.0 25.5 35.5 58.5 82.5 4.6 5.7 7.2 12.2 18.7 23.1 40.7 56.5 15 13.6 12.6 9 7.6 6.8 5 4.3 Heating Current 3 (A) Core Loss Factor 4 Kc 24.6 19 17.6 15.4 14.2 11.4 5556 4444 3704 13 11.6 10.6 8 6.6 6 4.6 3.8 11.2 10.4 8.6 7.6 6.4 5.3 4 3.4 2778 2469 2222 1709 1389 1235 926 794 NOTE: To order RoHS compliant part, add the suffix “NL” to the part number (i.e. PD0120.102 becomes PD0120.102 NL). Mechanical Schematic .323 MAX 8,20 1 .004/0,10 .638 MAX 16,20 .453 11,50 .059 1,50 1 4 .628 MAX 15,95 .630 16,00 PD0120.XXX Date Code Country of Origin 3 .236 6,00 2 Not actual number of turns; for reference only SUGGESTED PAD LAYOUT .720 1.260 ± .012 18,30 32,00 ± 0,30 .650 16,50 .335 8,50 TAPE & REEL LAYOUT 2 .638 16,20 .945 24,00 Weight . . . . . . . . . . .4.25 grams Tape & Reel . . . . . . . . .250/reel Dimensions: Inches mm Unless otherwise specified, all tolerances are ± .010 0,25 USER DIRECTION OF FEED USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 54643211 / 2 • China 86 755 33966678 • Taiwan 886 3 4641811 www.pulseeng.com 69 SPM2007 (11/07) SMT POWER INDUCTORS Wirewound - PD0120NL Series Notes from Tables Estimated Temperature Rise: 1. The rated current as listed is either the saturation current or the heating current depending on which value is lower. Trise = Coreloss (mW) + DCRloss (mW) .833 (°C) 7.05 Coreloss = 1.86E-12 * ( Freq (kHz)) 1.63 * (Kc * Vµsec)2.17 (mW) 2. The saturation current is the current which causes the inductance to drop by 10% at the stated ambient temperatures (-40°C, 25°C and 125°C). This current is determined by placing the component in the specified ambient environment and applying a short duration pulse current (to eliminate self-heating effects) to the component. DCRloss = Irms2 * DCR(mΩ) (mW) IDC2 + dI 2 ½ (Arms) 12 Freq (kHz) = switching frequency (kHz) Vµsec = L (µH) * dI or V * D * 1000/Freq (kHz) dI = pk – pk ripple current across the component (A) V = Voltage across the component (V) D = Duty cycle Irms = 3. The heating current is the DC current which causes the temperature of the part to increase by approximately 45°C. This current is determined by mounting the component on a PCB with .25" wide, 3 oz. equivalent copper traces, and applying the current to the device for 30 minutes with no forced air cooling. 4. In high volt*time applications, additional heating in the component can occur due to losses in the inductor which may neccessitate derating the current in order to limit the temperature rise of the component. In order to determine the approximate total losses (or temperature rise) for a given application both copper losses and core losses should be taken into account. 5. Optional Tape & Reel packaging can be ordered by adding a "T" suffix to the part number (i.e. PD0120.102 becomes PD0120.102T). Pulse complies to industry standard tape and reel specification EIA481. 6. The "NL" suffix indicates an RoHS-compliant part number. NonNL suffixed parts are not necessarily RoHS compliant, but are electrically and mechanically equivalent to NL versions. If a part number does not have the "NL" suffix, but an RoHS compliant version is required, please contact Pulse for availability. 7. The temperature of the component (ambient plus temperature rise) must be within the stated operating temperature range. Inductance vs Current Characteristics Open-Circuit Inductance , OCL (µH) 60.0 PD0120.503 50.0 PD0120.373 PD0120.223 PD0120.183 40.0 PD0120.113 PD0120.702 30.0 PD0120.532 PD120.332 20.0 PD0120.222 PD0120.152 10.00 0.0 PD0120.102 0 5 10 15 20 25 30 35 40 Normalized IDC (Amps) USA 858 674 8100 • Germany 49 7032 7806 0 • Singapore 65 6287 8998 • Shanghai 86 21 54643211 / 2 • China 86 755 33966678 • Taiwan 886 3 4641811 www.pulseeng.com 70 SPM2007 (11/07)