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Molding Power Inductors – HEI Series
HEI Series
Features
RoHS, Halogen Free and REACH Compliance
High Efficiency
Excellent Q, RDC and saturation current
Low profile and miniature size down to 1.6*0.8*0.8mm
Product Identification
The HEI Series is designed specifically to enhance both PFM and
PWM application performance.Q(Rac) value at light load and the
RDC value at heavy load are both exceptional. Furthermore, the
saturated current performance is also optimal, helping to reduce the
ripple current and enhance the efficiency.
Applications
Smartphones, tablets and wearable devices
HDD, SSD and PC peripheral devices
DSC, camcorders
PND
DC/DC converters
Shape and Dimensions
Recommended Pattern
Dimensions in mm
TYPE
A
160808A
1.6±0.2
201208A
2.0±0.2
201210A
2.0±0.2
201608A
2.0±0.2
201610A
2.0±0.2
252010A
2.5±0.3
252012A
2.5±0.3
322510A
3.2±0.3
322512A
3.2±0.3
322525A
3.2±0.3
B
0.80±0.2
1.25±0.2
1.25±0.2
1.60±0.2
1.60±0.2
2.00±0.3
2.00±0.3
2.50±0.3
2.50±0.3
2.50±0.3
C
0.8Max
0.8Max
1.0Max
0.8Max
1.0Max
1.0Max
1.2Max
1.0Max
1.2Max
2.50±0.3
D
0.3±0.2
0.5±0.3
0.5±0.3
0.5±0.3
0.5±0.3
0.6±0.3
0.6±0.3
0.5±0.3
0.5±0.3
0.5±0.3
Dimensions in mm
TYPE
160808A
201208A
201210A
201608A
201610A
252010A
252012A
322510A
322512A
322525A
A
0.7~0.8
0.8~1.2
0.8~1.2
0.9
0.9
1.2
1.2
1.7
1.7
1.7
B
1.8~2.0
2.3~2.9
2.3~2.9
2.0
2.0
2.8
2.8
3.2
3.2
3.2
C
0.6~0.8
1.0~1.4
1.0~1.4
1.6
1.6
2.0
2.0
2.5
2.5
2.5

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Molding Power Inductors – HEI Series
Electrical Characteristics
Part Number
Inductance
(uH)
Tolerance
(±%)
Test
Frequency
(MHz)
HEI160808A-R24M-Q8
HEI160808A-R33M-Q8
0.24
0.33
20
20
2
2
HEI160808A-R47M-Q8
0.47
20
2
Note: When ordering, please specify tolerance code. Tolerance: M=±20%
Operating temperature range-40℃~125℃(Including self - temperature rise)
Isat for Inductance drop 30% from its value with current
Irms for a 40temperature rise from 25ambient with current
Measure Equipment
LAgilent E4991/HP4287A+16197A, 2MHz 0.2V
RDCCHEN HWA502
IsatAgilent E4980A+HP42841A
IrmsAgilent 6641 SYSTEM DC POWER SUPPLY
Test InstrumentsE4991A Impedance / Material Analyzer
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
Inductance vs. DC Current
R47
R33
R24
0.5 1 1.5 2 2.5 3 3.5 4
DC Current(A)
70
60
50
40
30
20
10
0
0
RDC(mΩ)
Max(Typ.)
54(47)
75(62)
100(87)
Isat(A)
Max(Typ.)
3.2(3.6)
3.0(3.4)
2.2(2.6)
Irms(A)
Max(Typ.)
2.6(3.0)
2.2(2.6)
1.6(2.0)
Tem perature Change vs. DC Current
R47 R33
R24
0.5 1 1.5 2 2.5 3 3.5 4
DC Current(A)

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Molding Power Inductors – HEI Series
Electrical Characteristics
Part Number
Inductance
(uH)
Tolerance
(±%)
Test
Frequency
(MHz)
HEI201208A-R24M-Q8
0.24
20
2
HEI201208A-R47M-Q8
0.47
20
2
Note: When ordering, please specify tolerance code. Tolerance: M=±20%
Operating temperature range-40℃~125℃(Including self - temperature rise)
Isat for Inductance drop 30% from its value with current
Irms for a 40temperature rise from 25ambient with current
Measure Equipment
LAgilent E4991/HP4287A+16197A, 2MHz 0.2V
RDCCHEN HWA502
IsatAgilent E4980A+HP42841A
IrmsAgilent 6641 SYSTEM DC POWER SUPPLY
Test InstrumentsE4991A Impedance / Material Analyzer
RDC(mΩ)
Max(Typ.)
25(19)
48(40)
Isat(A)
Max(Typ.)
4.8(5.4)
3.2(3.6)
Irms(A)
Max(Typ.)
4.2(4.8)
3.0(3.4)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
Inductance vs. DC Current
R47
R24
1 234 56
DC Current(A)
Tem perature Change vs. DC Current
70
60
R47 R24
50
40
30
20
10
0
0 12 3 45 6
DC Current(A)

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Molding Power Inductors – HEI Series
Electrical Characteristics
Part Number
Inductance
(uH)
Tolerance
(±%)
Test
Frequency
(MHz)
HEI201210A-R24M-Q8
0.24
20
2
HEI201210A-R33M-Q8
0.33
20
2
HEI201210A-R47M-Q8
0.47
20
2
HEI201210A-1R0M-Q8
1.0
20
2
HEI201210A-1R5M-Q8
1.5
20
2
HEI201210A-2R2M-Q8
2.2
20
2
Note: When ordering, please specify tolerance code. Tolerance: M=±20%
Operating temperature range-40℃~125℃(Including self - temperature rise)
Isat for Inductance drop 30% from its value with current
Irms for a 40temperature rise from 25ambient with current
Measure Equipment
LAgilent E4991/HP4287A+16197A, 2MHz 0.2V
RDCCHEN HWA502
IsatAgilent E4980A+HP42841A
IrmsAgilent 6641 SYSTEM DC POWER SUPPLY
RDC(mΩ)
Max(Typ.)
28(22)
30(25)
42(33)
78(69)
112(94)
176(166)
Isat(A)
Max(Typ.)
4.5(5.7)
4.5(4.8)
3.3(4.2)
2.3(2.8)
1.9(2.3)
1.6(1.7)
Irms(A)
Max(Typ.)
3.7(4.6)
3.7(4.3)
3.0(3.7)
2.2(2.7)
1.8(2.2)
1.4(1.5)
Test InstrumentsE4991A Impedance / Material Analyzer
1R0
2.4
Inductance vs. DC Current
2.0
1.6 2R2
1.2
1R5
0.8
1R0
0.4 R47
R33 R24
0.0
01 23 45 67
DC Current(A)
Tem perature Change vs. DC Current
70
2R2
R24
60 1R0 R47 R33
50 1R5
40
30
20
10
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
DC Current(A)

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Molding Power Inductors – HEI Series
Electrical Characteristics
Part Number
Inductance
(uH)
Tolerance
(±%)
Test
Frequency
(MHz)
RDC(mΩ)
Max(Typ.)
Isat(A)
Max(Typ.)
Irms(A)
Max(Typ.)
HEI201608A-1R0M-Q8
1.0
20
2
HEI201608A-1R5M-Q8
1.5
20
2
Note: When ordering, please specify tolerance code. Tolerance: M=±20%
Operating temperature range-40℃~125℃(Including self - temperature rise)
Isat for Inductance drop 30% from its value with current
Irms for a 40temperature rise from 25ambient with current
Measure Equipment
LAgilent E4991/HP4287A+16197A, 2MHz 0.2V
RDCCHEN HWA502
IsatAgilent E4980A+HP42841A
IrmsAgilent 6641 SYSTEM DC POWER SUPPLY
87(76)
115(102)
2.5(2.8)
2.0(2.3)
2.3(2.7)
2.1(2.4)
Test InstrumentsE4991A Impedance / Material Analyzer
Inductance vs. DC Current
2.4
2.0
1.6
1.2
1R5
0.8 1R0
0.4
70
60
50
40
30
20
10
Tem perature Change vs. DC Current
1R0
1R5
0.0
0 0.5 1 1.5 2 2.5 3 3.5 4
DC Current(A)
0
0 0.5 1 1.5 2 2.5 3 3.5 4
DC Current(A)