DR124-101-R COOPER | Alldatasheet
Document overview
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Technical content
Description
- 125°C maximum total temperature operation Low profile surface mount inductor 12.5mm x 12.5mm x 4.5mm shielded drum core Ferrite core material Inductance range from 0.47µH to 1000µH Current range from 24.4 Amps to 0.44 Amps Frequency range up to 1MHz
Applications
Notebook power, LCD panels Computer, DVD players, and portable power devices DC-DC converters Buck, boost, forward, and resonant converters Noise filtering and filter chokes Environmental Data Storage temperature range: -40°C to +125°C Operating temperature range: -40°C to +125°C (range is application specific) Solder reflow temperature: +260°C max. for 10 seconds maximum Packaging Supplied in tape and reel packaging, 750 per reel DR124 Series Low Profile Power Inductors Part Number Rated OCL (1) Irms(2) Isat (3) DCR DCR K-factor Inductance µH±20% Amperes Amperes m ΩΩ @20°C m ΩΩ @20°C (4) (µH) (Typical) (Maximum) (1) Open Circuit Inductance Test Parameters: 100kHz, 0.25V, 0.0Adc. (2) Irms: DC current for an approximate ³T 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 125°C under worst case operating conditions verified in the end application. (3) Isat Amperes peak for approximately 25% rolloff (@25°C) (4) K-factor: Used to determine B p-p for core loss (see graph). B p-p = K*L*³I, B p-p(mT), K: (K factor from table), L: (Inductance in µH), ³I (Peak to peak ripple current in Amps). (5) Part Number Definition: DR124-xxx-R DR124 = Product code and size; -xxx = Inductance value in uH; R = decimal point; If no R is present, third character = # of zeros. -R suffix = RoHS compliant
Low Profile Power Inductors Core Loss 1MHz 100kHz 200kHz 300kHz 500kHz 0.0001 0.001 0.01 0.1 100 1 10 100 1000 Bp-p (m T) Core Loss (W) DR124 -### wwllyy R 4.0 Ko=5.2 mm B1=10 mm A1=10mm Bo=13.2 mm Ao=13.2 mm Bo Ko SECTION A-A 1.5 dia +0.1/-0.0 1.5 dia min A 1.75 A User direction of feed 24.0 Ao 12.6 16.0 Parts packaged on 13" Diameter reel, 750 parts per reel. Packaging Information Dimensions are in millimeters. wwlly = Date code, R = Revision level. 12.50 Max 4.5 Max 21 DR124-### wwllyy R SCHEMATIC BOTTOM VIEW 5.00 Typ 2.05 Typ. 1 12.50 Max FRONT VIEW TOP VIEW 5.50 2.65 12.9 RECOMMENDED PCB LAYOUT Mechanical Diagrams
OCL Vs. Isat 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 120.0% % Isat % OCL +85 Deg. C +25 Deg. C -4 0 Deg. C Inductance Characteristics DR124 Series Low Profile Power Inductors Temperature Rise vs. Loss 100 120 00 . 4 0 . 8 1.2 1.6 2 Total Power Lo ss (W) Temperature Rise (ºC) 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 d istribution of any products. Cooper Electronic Technologies also reserves the right to change or update, without notice, any technical information contained in thi s 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 d evices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whos e failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in signifi cant injury to the user. PM-4141 1111 © Cooper Electronic Technologies 2007