INDUCTORS Inductors for power circuits Cl Pb Br Wound metal REACH Halogen Lead RoHS SVHC-Free Free Free SPM-LR series SPM4012-LR type FEATURES Magnetic shield type wound inductor for power circuits using a metallic magnetic material. Low-profile product. Compared to ferrite wound type inductors, it is possible to achieve large current, low Rdc, and compactness. Low inductance variance in high-temperature environments with good DC superimposition characteristics. Metallic magnetic material is used, and the structure has an integrated molded coil, so hum noise is lower than with core adhesive coils. APPLICATION Tablet terminals, note PCs, HDDs, servers, VRMs, compact power supply modules, other Application guides: Smart phones/tablets PART NUMBER CONSTRUCTION SPM 4012 T - R47 M - LR LWH dimensions Inductance Inductance Series name Packaging style Internal code 4.44.11.2 mm (H) tolerance CHARACTERISTICS SPECIFICATION TABLE L L measuring DC resistance Part No. Rated current frequency Isat Itemp (H) Tolerance (kHz) (m )max. (m )typ. (A)typ. (A)typ. 0.47 20% 100 17.6 16.0 8.5 6.7 SPM4012T-R47M-LR 1.00 20% 100 36.3 33.0 6.4 4.7 SPM4012T-1R0M-LR 1.50 20% 100 65.7 57.1 5.8 3.5 SPM4012T-1R5M-LR 2.20 20% 100 85.4 74.3 4.8 3.1 SPM4012T-2R2M-LR 3.3 20% 100 126.5 110.0 3.5 2.6 SPM4012T-3R3M-LR 4.7 20% 100 196.7 171.0 3.3 1.7 SPM4012T-4R7M-LR 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 40C by self heating) Measurement equipment Measurement item Product No. Manufacturer L 4284A Keysight Technologies DC resistance AX-111A ADEX Rated current Isat 4284A+42841A+42842C Keysight Technologies Equivalent measurement equipment may be used. TEMPERATURE RANGE, INDIVIDUAL WEIGHT Operating temperature range Storage temperature range Individual weight 40 to +125 C 40 to +125 C 0.10 g Operating temperature range includes self-temperature rise. The storage temperature range is for after the assembly. Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use. (1/4) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180723 inductor commercial power spm4012-lr en.fmINDUCTORS SPM4012-LR type L FREQUENCY CHARACTERISTICS 20.0 4R7M 15.0 3R3M 10.0 2R2M 5.0 1R5M 1R0M R47M 0.0 0.01 0.1 1 10 100 ( ) Frequency MHz Measurement equipment Product No. Manufacturer 4294A Keysight Technologies Equivalent measurement equipment may be used. INDUCTANCE VS. DC BIAS CHARACTERISTICS 5 4R7M 4 3R3M 3 2R2M 2 1R5M 1R0M 1 R47M 0 0246 8 10 12 DC current (A) Measurement equipment Product No. Manufacturer 4284A+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. (2/4) Please note that the contents may change without any prior notice due to reasons such as upgrading. 20180723 inductor commercial power spm4012-lr en.fm ( ) Inductance (H) Inductance H