FLAT-PAC™ 3 Low Profile Inductors Description RoHS 2002/95/EC • 155°C maximum total temperature operation • Low profile high current inductors • Inductance range 0.1uh to 15uh • Design utilizes high temperature powder iron material with a non-organic binder to eliminate thermal aging • Current rating up to 34.7Adc (Higher peak currents may be attained with a greater rolloff, see rolloff curve) • Frequency range up to 2MHz Applications • Computers and portable power devices • Energy storage applications • DC-DC converters • Input - Output filer application Environmental Data • Storage temperature range: -40°C to +155°C • Operating ambient temperature range: -40°C to +155°C (range is application specific). • Solder reflow temperature: +260°C max. for 10 seconds max. Part Number FP3-R10-R FP3-R20-R FP3-R47-R FP3-R68-R FP3-1R0-R FP3-1R5-R FP3-2R0-R FP3-3R3-R FP3-4R7-R FP3-8R2-R FP3-100-R FP3-150-R Rated Inductance µH 0.10 0.20 0.47 0.68 1.00 1.50 2.00 3.30 4.70 8.20 10.0 15.0 OCL (1) µH ± 15% Irms (2) Amperes 0.10 0.22 0.44 0.72 1.10 1.50 2.00 3.20 4.70 8.5 10.9 14.9 19.0 15.3 10.9 9.72 6.26 5.78 5.40 3.63 3.23 2.91 2.30 2.22 Isat (3) Amperes Approx. 10% 27 16 11.6 9.0 7.4 6.2 5.4 4.3 3.5 2.6 2.3 2.0 1) OCL (Open Circuit Inductance) Test parameters: 100kHz, 0.1Vrms, 0.0Adc 2) DC current for an approximate ∆T of 40°C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow, and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 155°C under worst case operating conditions verified in the end application. Mechanical Diagrams TOP VIEW 2.8±0.25 Isat (4) Amperes Approx. 15% 34.7 20.8 14.9 11.6 9.5 8.0 6.9 5.5 4.2 3.4 3.0 2.5 DCR mOhms @ 20°C (Max.) 1.21 1.88 3.67 4.63 11.2 13.1 15.0 30.0 40.0 74.0 101 127 K-factor (5) 803 482 344 268 219 185 161 127 105 78 69 59 3) Isat Amperes Peak for approximately 10% rolloff @ 20°C 4) Isat Amperes Peak for approximately 15% rolloff @ 20°C 5) K-factor: Used to determine B p-p for core loss (see graph). B p-p =K*L*∆I B p-p:(Gauss), K: (K factor from table), L: (Inductance in uH), ∆I (Peak to peak ripple current in Amps). RECOMMENDED PCB PAD LAYOUT SIDE VIEW SCHEMATIC 1 (2x) FRONT VIEW 1.0 min. (2x) FP3 XXX yww 3.00 Max Packaging • Units supplied in tape and reel packaging. Reel quantity = 1,700 parts per reel. 1 7.25 Max 7.50 2.50 (2x) 2 2.8±0.25 (2x) 2 6.70 Max Packaging Information 4.50 (2x) 1.5 Dia min. 0.30 +/-0.05 4.0 2.0 1.5 Dia +0.1/-0.0 1.75 A 0.3 Rad max. 1 7.5 Bo 16.0 +/-0.3 2 Dimensions in Millimeters Ko SECTION A-A A Ao 12.0 0.5 Rad typ. Direction of Feed Ao= 6.6mm Bo= 7.1mm Ko= 3.2mm xxx = Inductance value yww = Date code FLAT-PAC™ 3 Low Profile Inductors Inductance Characteristics OCL vs. Isat 100 90 % of OCL 80 70 60 50 40 30 20 10 0 0 20 40 60 80 100 120 140 160 180 200 % of Isat Core Loss FP3 AC Loss at Frequency, kHz Frequency (kHz) 1.00 0.90 0.80 0.70 0.60 0.50 0.40 0.30 0.20 0.10 0.00 250 200 300 400 500 600 700 800 900 1000 500 750 1000 1250 1500 1750 2000 2250 B p-p (Gauss) Temperature Rise vs. Watt Loss Temperature Rise (C) CoreLoss (W) CoreLoss vs. Flux Density 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 0.12 0.24 0.36 0.48 0.61 0.73 0.85 0.97 1.09 Total Loss (W) 1.21 1.33 1.45 1.57 FLAT-PAC™ 3 Low Profile Inductors PM-4118 3/07 © Cooper Electronic Technologies 2007 Visit us on the Web at www.cooperbussmann.com 1225 Broken Sound Pkwy. Suite F Boca Raton, FL 33487 Tel: +1-561-998-4100 Toll Free: +1-888-414-2645 Fax: +1-561-241-6640 This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Electronic Technologies also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Life Support Policy: Cooper Electronic Technologies does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.