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INDUCTORS
20150322 / inductor_commercial_power_spm4020_en.fm
Please be sure to request delivery specifications that provide further details on the features and specifications of the products for proper and safe use.
Please note that the contents may change without any prior notice due to reasons such as upgrading.
SPM4020 Type
ELECTRICAL CHARACTERISTICS
CHARACTERISTICS SPECIFICATION TABLE
Rated current: smaller value of either Idc1 or Idc2.
Idc1: When based on the inductance change rate (30% below the initial value)
Idc2: When based on the temperature increase (Temperature increase of 40°C by self heating)
○ Measurement equipment
＊ Equivalent measurement equipment may be used.
L L measuring
frequency
DC resistance
Rated current
Part No.
Idc1 Idc1 Idc2
(μH) Tolerance (kHz) (m )max. (m )typ. (A)max. (A)typ. (A)typ.
0.47 ±20% 100 19.5 17.7 9.1 12.1 6.1 SPM4020T-R47M
1.0 ±20% 100 34.7 31.6 6.7 8.9 5.0 SPM4020T-1R0M
1.5 ±20% 100 46.8 42.5 4.4 5.9 4.1 SPM4020T-1R5M
2.2 ±20% 100 70.4 64.0 3.9 5.1 3.7 SPM4020T-2R2M
3.3 ±20% 100 79.3 72.1 3.5 4.7 3.6 SPM4020T-3R3M
4.7 ±20% 100 150.6 131.0 2.5 3.4 2.2 SPM4020T-4R7M
Measurement item Product No. Manufacturer
L 4284A Agilent Technologies
DC resistance AX-111A ADEX
Rated current Idc1 4284A+42841A+42842C Agilent Technologies
