SMT POWER INDUCTORS Power Beads - Volta 1 & 2 Series Height: 3.2mm and 4.5mm Max Footprint: 7.0 x 6.4mm Max and 8.9 x 6.4mm Max Current Rating: up to 16A Inductance Range: 0.1H to 0.6H Frequency Range: up to 2MHz Electrical Specifications @ 25C -- Operating Temperature -40C to +130C 5, 6 Part Number Inductance @Irated (nH 20%) Irated (ADC) 95 15 DCR (m) TYP MAX Inductance @0ADC (nH 20%) 0.31 0.39 100 1 Saturation Current 2 (ADC) 25C 100C Heating3 Current (A) 18 16.2 15 36 18 16.8 12.6 30 16.2 15.1 8.0 16 15 15 10.7 Trise4 Factor K0 Core Loss Factor4 K1 K2 1.0032 .00319 .07381 2.2458 2.2458 2.2458 2.0400 .00638 .00638 .00638 .01276 .03975 .05961 .07949 .13196 VOLTA 1 P1681 VOLTA 2 PA0229 92 16 0.68 0.80 100 P2005 142.5 15 0.45 0.56 150 P2004 190 15 0.45 0.56 200 PA0277 600* 10.7 2.3 2.53* 700 * DCR and Inductance rating for indicated parts is for both windings tied in series. Schematic Mechanicals Volta 1 Volta 2 .276 MAX 7,01 P1681 Date Code Country of Origin .130 3,30 .255 6,48 MAX .350 MAX 8,89 .110 2,80 P2004/P2005 PA0229 Date Code Country of Origin 2 .100 2,54 .150 3,81 .150 3,81 .125 MAX 3,18 .010 0,25 2X.065 1,65 1 .250 6,35 MAX .177 MAX 4,50 .135 3,43 .010 0,25 .280 7,11 .350 8,89 2X.079 2,01 SUGGESTED PAD LAYOUT SUGGESTED PAD LAYOUT .075 1,91 .350 MAX 8,89 Volta 1 Volta 2 Weight.........0.464 grams ....0.945 grams Tape & Reel .....1500/reel .........1000/reel 1 2 PA0277 Date Code Country of Origin 4 1 .260 MAX 6,60 3 2X Dimensions: Inches mm Unless otherwise specified, all tolerances are .010 0,25 2X .177 MAX 4,50 .010 0,25 P1681 P2004 P2005 PA0229 .360 9,14 .060 1,52 2X 2 .099 2,51 3 .135 3,43 .079 4X 2,01 2X .040 1,02 4 .040 1,02 .015 2X 0,38 PA0277 SUGGESTED PAD LAYOUT .130 3,30 .012 0,30 .157 4,00 .079 2,00 .295 7,49 .630 .012 16,00 0,30 .285 7,24 TAPE & REEL LAYOUT .069 1,75 .270 6,86 .472 12,00 USER DIRECTION OF FEED .180 4,57 .012 0,30 .157 4,00 .079 2,00 .295 7,49 .340 8,64 TAPE & REEL LAYOUT .069 1,75 .265 6,73 .472 12,00 USER DIRECT USA 858 674 8100 * UK 44 1483 401 700 * France 33 3 84 35 04 04 * Singapore 65 6287 8998 * Shanghai 86 21 54643211 / 2 * China 86 769 85538070 * Taiwan 886 3 4641811 www.pulseeng.com P522.C (5/06) SMT POWER INDUCTORS Power Beads - Volta 1 & 2 Series Notes from Tables 5. Optional Tape & Reel packaging can be ordered by adding a "T" suffix to the part number, (i.e. PA0277T). 6. To order RoHS compliant part, add the suffix "NL" to the part number (i.e. PA0277 becomes PA0277NL and PA0277T becomes PA0277NLT). 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 by 10% at the stated ambient temperatures (-40C, 25C, 125C). 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. Estimated Temperature Rise: .833 Trise = Coreloss (mW) + Copper Loss (mW) (C) K0 Coreloss = K1 * ( Fsw(kHz)) 1.6688 * (K2 * dI)2.17 (mW) Copper Loss = Irms2 * DCR(m) (mW) 3. The heating current is the DC current which causes the temperature of the part to increase by approximately 30C. 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. 1/2 IDC 2 + dI 2 (Arms) 12 Fsw(kHz) = switching frequency (kHz) Irms = 4. In high volt*time applications, additional heating in the component can occur due to core 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. dI = delta I across the component (A) The temperature of the component (ambient temperature + temperature rise) should be within the listed operating temperature range. Inductance vs Current Characteristics P1681, P2005, P2004 PA0229 Inductance vs. DC Current at 25C P3 Percent of Initial Inductance (%) Percentage of Initial Inductance P2 P1 120 120 100 100 80 60 40 20 0 0 0.2 0.4 0.6 0.8 1.0 Normalized IDC 1.2 1.4 1.6 80 60 40 20 0 1.8 0 5 10 15 20 25 30 35 40 45 Current (ADC) Percent of Initial Inductance (%) P1 - Initial Inductance, Lo (.1VRMS, 1MHz, 0ADC, 25C) P2 - Inductance (typically 95% LO) at Rated IDC. Normalized Inductance P3 - Inductance (typically 90% LO) at IPK. 25 100 PA0277 Inductance vs. DC Current at 25C 120 100 80 60 40 20 0 0 2.5 5 7.5 10 12.5 15 17.5 20 Current (ADC) For More Information: Pulse Worldwide Headquarters Pulse Northern Europe Pulse Southern Europe Pulse Pulse North China China Headquarters Room 1503 12220 World Trade Drive San Diego, CA 92128 U.S.A. www.pulseeng.com TEL: 858 674 8100 FAX: 858 674 8262 3 Huxley Road Surrey Research Park Guildford, Surrey GU2 5RE United Kingdom TEL: 44 1483 401700 FAX: 44 1483 401701 Zone Industrielle F-39270 Orgelet France TEL: 33 3 84 35 04 04 FAX: 33 3 84 25 46 41 No. 1 Industrial District Changan, Dongguan China TEL: 86 769 85538070 FAX: 86 769 85538870 XinYin Building No. 888 YiShan Road Shanghai 200233 China TEL: 86 21 54643211/2 FAX: 86 21 54643210 Pulse South Asia Pulse North Asia 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 No. 26 Kao Ching Road Yang Mei Chen Taoyuan Hsien Taiwan, R. O. C. TEL: 886 3 4641811 FAX: 886 3 4641911 TEL: 65 6287 8998 FAX: 65 6280 0080 Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be trademarks or registered trademarks of their respective owners. (c) Copyright, 2006. Pulse Engineering, Inc. All rights reserved. www.pulseeng.com P522.C (5/06)