I N D U C T O R S Inductors for power circuits Cl Pb Br Wound ferrite VLCF series RoHS SRVEHCA-CFrHee HaFlroegeen LFereaed VLCF4028-2 type FEATURES Magnetic shield type wound inductor for power circuits. Low-profile product. Magnetic shield construction with ferrite core. Operating temperature range: –40 to +105°C (including self-temperature rise) APPLICATION Power source inductor for mobile devices such as HDDs, DVCs, and DSCs LCDs, other DC to DC converters PART NUMBER CONSTRUCTION VLCF 4028 T - 1R2 N 2R7 - 2 L×W×H dimensions Inductance Inductance Rated current Series name Packaging style Internal code 4.0×4.0×2.8 mm (µH) tolerance (A) CHARACTERISTICS SPECIFICATION TABLE L Measuring DC resistance Rated current Part No. frequency Isat Itemp (µH) Tolerance (kHz) ()max. ()typ. (A)max. (A)typ. 1.2 ±30% 100 0.032 0.027 2.71 3.11 VLCF4028T-1R2N2R7-2 1.6 ±30% 100 0.038 0.032 2.31 2.85 VLCF4028T-1R6N2R3-2 2.2 ±30% 100 0.043 0.037 1.94 2.63 VLCF4028T-2R2N1R9-2 2.7 ±30% 100 0.049 0.043 1.89 2.46 VLCF4028T-2R7N1R8-2 4.7 ±30% 100 0.062 0.054 1.57 2.18 VLCF4028T-4R7N1R5-2 6.8 ±30% 100 0.1 0.09 1.36 1.69 VLCF4028T-6R8N1R3-2 10 ±20% 100 0.14 0.12 1.06 1.45 VLCF4028T-100M1R0-2 15 ±20% 100 0.17 0.15 0.88 1.05 VLCF4028T-150MR88-2 22 ±20% 100 0.24 0.21 0.72 0.9 VLCF4028T-220MR72-2 33 ±20% 100 0.35 0.3 0.61 0.74 VLCF4028T-330MR61-2 47 ±20% 100 0.49 0.42 0.48 0.68 VLCF4028T-470MR48-2 100 ±20% 100 1 0.87 0.33 0.55 VLCF4028T-101MR33-2 470 ±20% 100 4.58 3.98 0.14 0.25 VLCF4028T-471MR14-2 Rated current: smaller value of either Isat or Itemp. Isat: When based on the inductance change rate (30% below the initial value) Itemp: When based on the temperature increase (temperature increase of 40°C by self heating) Measurement equipment Measurement item Product No. Manufacturer L 4194A Keysight Technologies DC resistance VP-2941A Panasonic Rated current Isat 4285A+42841A+42842C Keysight Technologies ＊Equivalent measurement equipment may be used. Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. (1/5) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180831 inductor_commercial_power_vlcf4028-2_en.fm

I N D U C T O R S VLCF4028-2 type L FREQUENCY CHARACTERISTICS 10000 471M 1000 101M 470M 330M 100 220M 150M 100M )H µ (e 6R8N nc 10 a ct u 4R7N d 2R7N n I 2R2N 1R6N 1 1R2N 0.1 0.01 0.01 0.1 1 10 100 Frequency(MHz) Measurement equipment Product No. Manufacturer 4294A Keysight Technologies ＊Equivalent measurement equipment may be used. Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. (2/5) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180831 inductor_commercial_power_vlcf4028-2_en.fm

I N D U C T O R S VLCF4028-2 type INDUCTANCE VS. DC BIAS CHARACTERISTICS 100 101M 470M 330M 220M 150M 10 100M 6R8N )H 4R7N µ (e c n a ct u 2R7N d n I 2R2N 1R6N 1R2N 1 0.1 0.0 1.0 2.0 3.0 4.0 5.0 DCcurrent(A) Measurement equipment Product No. Manufacturer 4285A+42841A+42842C Keysight Technologies ＊Equivalent measurement equipment may be used. Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. (3/5) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180831 inductor_commercial_power_vlcf4028-2_en.fm

I N D U C T O R S VLCF4028-2 type SHAPE & DIMENSIONS PACKAGING STYLE 4.0±0.1 REEL DIMENSIONS 2.0±0.5 0.5 5 3 1. 4R7 ±4.00.1 4.3max. 1.3 5 3 1. 0 2 ø6 ax. m 8 2. (1.0) Dimensions in mm ø13.0±0.5 13 ø21.0±0.8 17 ø180 Dimensions in mm TAPE DIMENSIONS 1 1 RECOMMENDED LAND PATTERN Sprocket 0. 0. ± ± 0.4 1.55±0.05 2.00±0.05 4.0±0.1 hole 5 5 45° 1.7 5. 2 1.6 ±0. B 2.0 1 1.3 4.5 K A Cavity 8.0±0.1 6 1. Dimensions in mm 2.5 3.9 Type A B K Dimensions in mm VLCF4028-2 4.4 4.4 3 PACKAGE QUANTITY RECOMMENDED REFLOW PROFILE Package quantity 500 pcs/reel Preheating Soldering Natural cooling TEMPERATURE RANGE, INDIVIDUAL WEIGHT Peak 260°C Operating Storage Individual temperature range temperature range weight –40 to 105 °C –40 to 105 °C 159 mg e 200°C 200°C  Operating temperature range includes self-temperature rise. atur The storage temperature range is for after the assembly. er p m e 150°C T 5s 130°C 110s 90s Time Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. (4/5) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180831 inductor_commercial_power_vlcf4028-2_en.fm

I N D U C T O R S REMINDERS FOR USING THESE PRODUCTS Before using these products, be sure to request the delivery specifications. SAFETY REMINDERS Please pay sufficient attention to the warnings for safe designing when using this products. REMINDERS The storage period is less than 6 months. Be sure to follow the storage conditions (temperature: 5 to 40°C, humidity: 10 to 75% RH or less). If the storage period elapses, the soldering of the terminal electrodes may deteriorate. Do not use or store in locations where there are conditions such as gas corrosion (salt, acid, alkali, etc.). Before soldering, be sure to preheat components. The preheating temperature should be set so that the temperature difference between the solder temperature and chip temperature does not exceed 150°C. Soldering corrections after mounting should be within the range of the conditions determined in the specifications. If overheated, a short circuit, performance deterioration, or lifespan shortening may occur. When embedding a printed circuit board where a chip is mounted to a set, be sure that residual stress is not given to the chip due to the overall distortion of the printed circuit board and partial distortion such as at screw tightening portions. Self heating (temperature increase) occurs when the power is turned ON, so the tolerance should be sufficient for the set thermal design. Carefully lay out the coil for the circuit board design of the non-magnetic shield type. A malfunction may occur due to magnetic interference. Use a wrist band to discharge static electricity in your body through the grounding wire. Do not expose the products to magnets or magnetic fields. Do not use for a purpose outside of the contents regulated in the delivery specifications. The products listed on this catalog are intended for use in general electronic equipment (AV equipment, telecommunications equip- ment, home appliances, amusement equipment, computer equipment, personal equipment, office equipment, measurement equip- ment, industrial robots) under a normal operation and use condition. The products are not designed or warranted to meet the requirements of the applications listed below, whose performance and/or qual- ity require a more stringent level of safety or reliability, or whose failure, malfunction or trouble could cause serious damage to society, person or property. If you intend to use the products in the applications listed below or if you have special requirements exceeding the range or conditions set forth in the each catalog, please contact us. (1) Aerospace/aviation equipment (8) Public information-processing equipment (2) Transportation equipment (cars, electric trains, ships, etc.) (9) Military equipment (3) Medical equipment (10) Electric heating apparatus, burning equipment (4) Power-generation control equipment (11) Disaster prevention/crime prevention equipment (5) Atomic energy-related equipment　　 (12) Safety equipment (6) Seabed equipment (13) Other applications that are not considered general-purpose (7) Transportation control equipment applications When designing your equipment even for general-purpose applications, you are kindly requested to take into consideration securing pro- tection circuit/device or providing backup circuits in your equipment. Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. (5/5) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180831 inductor_commercial_power_vlcf4028-2_en.fm