Molding Power Inductors – HEI Series

Electrical Characteristics

Inductance

Tolerance

Test

Frequency

Irms(A)

Isat(A)

RDC(mΩ)

Part Number

(uH)

(±%)

(MHz)

Max(Typ)

Max(Typ)

Max(Typ)

HEI201208A-R24M-Q8

0.24

20

2

4.2(4.8)

4.8(5.4)

25(19)

HEI201208A-R47M-Q8

0.47

20

2

3.0(3.4)

3.2(3.6)

48(40)



Irms DC current (A) that will cause an approximate ΔT of 40℃.



Isat DC current (A) that will cause L to drop approximately 30%



Tolerance：M = ±20%



L : Agilent E4991/HP4287A+16197A, 2MHz 0.2V



Rdc : CHEN HWA502



Isat : Agilent E4980A+HP42841A



Irms : Agilent 6641 SYSTEM DC POWER SUPPLY



Operating temperature range from -40℃ to 125℃. (Including self - temperature rise)

Test Instruments：E4991A Impedance / Material Analyzer

Inductance vs. DC Current

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

01

234

56

DC Current(A)

R24

R47

Temperature Change vs. DC Current

0

10

20

30

40

50

60

70

0

1

234

56

DC Current(A)

R24

R47