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)

HEI252010A-R24M-Q8

0.24

20

2

5.5(6.5)

8.0(9.5)

18(13)

HEI252010A-R33M-Q8

0.33

20

2

4.8(5.5)

6.5(8.0)

24(18)

HEI252010A-R47M-Q8

0.47

20

2

3.9(4.5)

5.0(6.2)

35(27)

HEI252010A-R68M-Q8

0.68

20

2

3.7(4.2)

4.5(5.6)

40(32)

HEI252010A-1R0M-Q8

1.0

20

2

3.0(3.5)

3.7(4.6)

53(45)

HEI252010A-1R5M-Q8

1.5

20

2

2.4(2.8)

3.1(3.8)

75(68)

HEI252010A-2R2M-Q8

2.2

20

2

2.2(2.5)

2.5(3.0)

97(87)



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

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

01

2

345

67

89

10

DC Current(A)

R47

2R2

1R5

1R0

R68

R33

R24

Temperature Change vs. DC Current

0

10

20

30

40

50

60

70

80

01234567

8

DC Current(A)

1R5

1R0

R68

R47

R33

R24

2R2