Inductors(coils)/Microchip Transformer > Chip Inductors (Chip Coils) > for DC-DC Converter Wire Wound Type Data Sheet Chip Inductors (Chip Coils) 1 for DC-DC Converter Wire Wound Type LQH44P Series (1515 Size) ■ Packaging Code Packaging Minimum Quantity L 180mm Embossed Tape 1000 K 330mm Embossed Tape 3500 2.4 min. 3.5±0.2 4.0±0.2 4.0±0.2 0.35 min. 3.7±0.2 1.65±0.15 ■ Dimensions 1.2±0.2 1.0 min. 1.2±0.2 (in mm) ■ Rated Value (p: packaging code) Part Number Inductance Inductance Allowable DC Current Test Frequency (Based on Temperature Rise) Allowable DC Current (Based on Inductance Change) DC Resistance Self Resonance Frequency (min.) Class of Magnetic Shield LQH44PN1R0NP0p 1.0µH±30% 1MHz 2450mA 2950mA 0.030ohm±20% 90MHz Magnetic shield of magnetic powder in resin LQH44PN2R2MP0p 2.2µH±20% 1MHz 1800mA 2500mA 0.049ohm±20% 70MHz Magnetic shield of magnetic powder in resin LQH44PN3R3MP0p 3.3µH±20% 1MHz 1770mA 2100mA 0.065ohm±20% 50MHz Magnetic shield of magnetic powder in resin LQH44PN4R7MP0p 4.7µH±20% 1MHz 1700mA 1700mA 0.080ohm±20% 40MHz Magnetic shield of magnetic powder in resin LQH44PN6R8MP0p 6.8µH±20% 1MHz 1340mA 1400mA 0.12ohm±20% 35MHz Magnetic shield of magnetic powder in resin LQH44PN100MP0p 10µH±20% 1MHz 1170mA 1150mA 0.16ohm±20% 25MHz Magnetic shield of magnetic powder in resin LQH44PN220MP0p 22µH±20% 1MHz 790mA 800mA 0.37ohm±20% 17MHz Magnetic shield of magnetic powder in resin Operating Temperature Range: -40°C to +85°C Only for reflow soldering. ■ Notice (Allowable DC Current) <Allowable DC Current> When Allowable DC Current is applied to the Products, self-generation of heat will rise to 40°C or less. When Allowable DC Current is applied to the Products, Inductance will be within +-30% of nominal Inductance value. Continued on the following page. o This data sheet is applied for CHIP INDUCTORS (CHIP COILS) used for General Electronics equipment for your design. ! Note: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2009.1.8 http://www.murata.com/ Inductors(coils)/Microchip Transformer > Chip Inductors (Chip Coils) > for DC-DC Converter Wire Wound Type Data Sheet 2 Continued from the preceding page. ■ Inductance - Frequency Characteristics (Typ.) ■ Inductance - Current Characteristics (Typ.) 100 1000 22µH 22µH 10µH 6.8µH 4.7µH 10 4.7µH Inductance (µH) Inductance (µH) 100 3.3µH 10 2.2µH 3.3µH 2.2µH 1 1.0µH 1 0.1 0.1 10µH 6.8µH 1.0µH 1 10 Frequency (MHz) 100 0.1 10 1000 100 DC Current (mA) 1000 10000 ■ !Caution/Notice !Caution (Rating) Do not use products beyond the rated current as this may create excessive heat. Notice Solderability of Tin plating termination chip might be deteriorated when low temperature soldering profile where peak solder temperature is below the Tin melting point is used. Please confirm the solderability of Tin plating termination chip before use. o This data sheet is applied for CHIP INDUCTORS (CHIP COILS) used for General Electronics equipment for your design. ! Note: 1. This datasheet is downloaded from the website of Murata Manufacturing co., ltd. Therefore, it’s specifications are subject to change or our products in it may be discontinued without advance notice. Please check with our sales representatives or product engineers before ordering. 2. This datasheet has only typical specifications because there is no space for detailed specifications. Therefore, please approve our product specifications or transact the approval sheet for product specifications before ordering. 2009.1.8 http://www.murata.com/