SMT POWER INDUCTORS Flat Coils - PG0377 Series Height: 6.5mm Max Footprint: 14.5mm x 13.0mm Max Current Rating: up to 35A Inductance Range: 0.16H to 2.65H RoHS Compliant: Refer to Note 9 Electrical Specifications @ 25C -- Operating Temperature -40C to +95C 1 2 Saturation 4 Heating 5 Current Current I D C Isat (A) (A) Core Loss 6 Factor K1 K2 Irated 3 (A) TYP MAX Inductance @0A D C (H 20%) 0.16 48 0.40 0.50 0.18 60 48 1.68E-9 22.3 20 PG0377.401 0.38 35 0.75 0.80 0.45 48 35 1.68E-9 33.5 24 PG0377.801 0.75 31 1.20 1.30 0.80 38 31 1.68E-9 42.5 25 PG0377.142 1.32 26 2.00 2.10 1.40 28 26 1.68E-9 57.8 26 PG0377.202 1.90 21 2.80 2.90 2.00 24 21 1.68E-9 67.6 31 PG0377.282 2.65 17 4.10 4.20 2.80 20 17 1.68E-9 80.1 36 Part 8,9 Number Inductance @Irated (H TYP) PG0377.181 DCR (m ) Schematic Mechanical .571 14,50 .512 13,00 MAX Capacitance 10 (pF TYP) .256 6,50 .441 11,20 1 .165 4,20 PG0377.XXX Date Code Country of Origin 2 .091 2,30 .612 .005 15,55 0,12 Weight......................5.5 grams Tape & Reel ................300/reel .205 .005 5,20 0,12 .945 .012 24,00 0,30 .945 24,00 TAPE & REEL LAYOUT 2x .197 .005 5,00 0,12 SUGGESTED PAD LAYOUT Dimensions: Inches mm Unless otherwise specified, all tolerances are .010 0,25 USA 858 674 8100 * Germany 49 7032 7806 * Singapore 65 6287 8998 * Shanghai 86 21 54643211 / 2 * China 86 769 85538070 * Taiwan 886 3 4641811 www.pulseeng.com P634.C (1/07) SMT POWER INDUCTORS Flat Coils - PG0377 Series Notes from Tables 1. The temperature of the component (ambient plus temperature rise) must be within the standard operating temperature range. 2. Inductance at Irated is a typical inductance value for the component taken at rated current. 3. The rated current listed is the lower of the saturation current @ 25C or the heating current. 4. The saturation current, ISAT, is the current at which the component inductance drops by 20% (typical) at an ambient temperature of 25C. 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. 5. The heating current, IDC, is the DC current required to raise the component temperature by approximately 40C. The heating current is determined by mounting the component on a typical PCB and applying current for 30 minutes. The temperature is measured by placing the thermocouple on top of the unit under test. Take note that the component's performance varies depending on the system condition. It is suggested that the component be tested at the system level, to verify the temperature rise of the component during system operation. 6. Core loss approximation is based on published core data: 7. Unless otherwise specified, all testing is made at 100kHz, 0.1VAC. 8. Optional Tape & Reel packaging can be ordered by adding a "T" suffix to the part number (i.e. PG0377.401 becomes PG0377.401T). Pulse complies to industry standard tape and reel specification EIA481. 9. RoHS compliant parts are available. Order RoHS compliant parts by adding the suffix "NL" to the part number (i.e. PG0377.401 becomes PG0377.401NL and PG0377.401T becomes PG0377.401NLT). 10. The capacitance of the inductor is a typical value measured at 100kHz, 0.1Vrms using the HP Impedance Analyzer 4192A between the inductor terminals and the exposed portion of the E-core (Fig.1). 11. DIELECTRIC WITHSTAND VOLTAGE: 150V DC between the inductor terminals and the exposed portion of the E-core (Fig.1). 12. INSULATION RESISTANCE: 500k MIN, when measured from the inductor terminals to the exposed portion of the E-core (Fig.1). Core Loss = K1 * (f)1.035 * (K2I)2.263 Where: Core Loss = in Watts f = switching frequency in kHz K1 & K2 = core loss factors I = delta I across the component in Ampere I = one half of the peak to peak flux density K2 across the component in Gauss Figure 1 Inductance vs Current Characteristics 3.0 2.5 PG0377.202 2.0 1.5 PG0377.142 1.0 PG0377.801 0.5 46.5 48.5 44.5 42.5 40.5 38.5 36.5 34.5 32.5 30.5 28.5 26.5 24.5 22.5 20.5 18.5 16.5 14.5 12.5 8.5 10.5 6.5 4.5 2.5 0 PG0377.401 PG0377.181 0.5 I N D U C TA N C E (H ) PG0377.282 BIAS CURRENT (A) USA 858 674 8100 * Germany 49 7032 7806 * Singapore 65 6287 8998 * Shanghai 86 21 54643211 / 2 * China 86 769 85538070 * Taiwan 886 3 4641811 www.pulseeng.com P634.C (1/07) SMT POWER INDUCTORS Flat Coils - PG0377 Series Typical Core Loss vs Peak Flux Density CORE LOSS (W) 1.60 1.40 100kHz 1.20 200kHz 1.00 300kHz 0.80 400kHz 0.60 500kHz 0.40 0.20 0.00 100 200 300 400 500 600 D B (GAUSS) D B = K2 * D I 700 800 900 1000 Typical Component Temperature vs DC Bias Current COMPONENT TEMP (C) 120 PG0377.142 PG0377.202 100 PG0377.801 PG0377.282 PG0377.401 80 PG0377.181 60 40 20 0 0 10 20 30 40 50 60 70 80 90 BIAS (A) For More Information: Pulse Worldwide Headquarters Pulse Europe Pulse China Headquarters 12220 World Trade Dr. San Diego, CA 92128 U.S.A. www.pulseeng.com TEL: 858 674 8100 FAX: 858 674 8262 Einsteinstrasse 1 D-71083 Herrenberg Germany No. 1 Industrial District Changan, Dongguan China Tel: 86 769 85538070 Fax: 86 769 85538870 Tel: 49 7032 7806 116 Fax: 49 7032 7806 135 Pulse North China Pulse South Asia Pulse North Asia Room 1503 XinYin Building No. 888 YiShan Rd. Shanghai 200233 China Tel: 86 21 54643211/2 Fax: 86 21 54643210 150 Kampong Ampat #07-01/02 KA Centre Singapore 368324 No. 26 Kao Ching Rd. 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 P634.C (1/07)