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)

HEI252012A-R24M-Q8

0.24

20

2

6.2(7.3)

9.5(12)

15(11.5)

HEI252012A-R47M-Q8

0.47

20

2

3.8(4.5)

5.6(7.0)

33(28)

HEI252012A-R68M-Q8

0.68

20

2

3.8(4.4)

5.0(6.2)

36(30)

HEI252012A-1R0M-Q8

1.0

20

2

3.6(4.1)

4.4(5.5)

42(35)

HEI252012A-1R5M-Q8

1.5

20

2

2.7(3.1)

3.4(4.2)

65(57)

HEI252012A-2R2M-Q8

2.2

20

2

2.5(2.9)

3.0(3.7)

83(74)



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

0.5

1.0

1.5

2.0

2.5

3.0

0

1

2

3

4

5

6

7

8

9

10

11

12

13

DC Current(A)

2R2

1R5

1R0

R68

R47

R24

Temperature Change vs. DC Current

0

10

20

30

40

50

60

70

0

1

23

45

6

7

8

9

10

DC Current(A)

2R2

1R5

1R0

R24

R47

R68