MODEL HM79 SERIES
Low Cost, Medium Power
Surface Mount
Inductors
PRELIMINARY DATA SHEET
FEATURES AND BENEFITS
• Low cost version provides high performance in a reduced footprint
• Low core loss excellent for high frequency applications
• Low profile designed for machine placement
• 1 µH to 820 µH inductance range
• Up to 2.6 amps continuous
• Compatible with vapor phase and infrared reflow soldering
• Custom designs available
APPLICATIONS
• Laptop and notebook computers, PDAs
• DC/DC converter for hand held equipment
• Battery charging circuits
• Output ripple current filter
• Inductor for general purpose
6
ELECTRICAL / ENVIRONMENTAL
Operating Temperature Range
Storage Temperature Range
Ambient Temperature, Maximum
Insulation System
Temperature Rise, Maximum
Specifications subject to change without notice.
Last Update: 03/17/2003.
-25°C to +125°C
-40°C to +85°C
70°C
Class B, 130°C
40°C
6-173
Model HM79 Series
SPECIFICATIONS
Part
Number
HM79-101R0
HM79-101R4
HM79-101R8
HM79-102R2
HM79-102R7
HM79-103R3
HM79-103R9
HM79-104R7
HM79-105R6
HM79-106R8
HM79-108R2
HM79-10100
HM79-10120
HM79-10150
HM79-10180
HM79-10220
HM79-10270
HM79-10330
HM79-20100
HM79-20120
HM79-20150
HM79-20180
HM79-20220
HM79-20270
HM79-20330
HM79-20390
HM79-20470
HM79-20560
HM79-20680
HM79-20820
HM79-20101
HM79-20121
HM79-20151
HM79-20181
HM79-20221
Inductance
µH ± 20%
(1)
1.0
1.4
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
DC
Resistance
Ω
Max.
0.048
0.056
0.063
0.071
0.078
0.086
0.093
0.108
0.125
0.131
0.146
0.182
0.210
0.235
0.338
0.378
0.522
0.540
0.10
0.12
0.14
0.15
0.18
0.20
0.23
0.32
0.37
0.42
0.46
0.60
0.70
0.93
1.10
1.38
1.57
Rated
Current
Amps
(2)
2.56
2.52
1.95
1.75
1.58
1.44
1.33
1.15
0.99
0.95
0.84
1.04
0.97
0.85
0.74
0.68
0.62
0.56
1.44
1.40
1.30
1.23
1.11
0.97
0.88
0.80
0.72
0.68
0.61
0.58
0.52
0.48
0.40
0.38
0.35
Notes: 1. Inductance measured at 100kHz, 0.1Vrms, without DC current.
2. Rated DC current is the approximate current at which inductance will be decreased by 10% from its initial (zero DC) value
or the DC current at which
∆T
= 40°C, whichever is lower.
6-174
Model HM79 Series
SPECIFICATIONS
Part
Number
HM79-30100
HM79-30120
HM79-30150
HM79-30180
HM79-30220
HM79-30270
HM79-30330
HM79-30390
HM79-30470
HM79-30560
HM79-30680
HM79-30820
HM79-30101
HM79-30121
HM79-30151
HM79-30181
HM79-30221
HM79-30271
HM79-30331
HM79-40100
HM79-40120
HM79-40150
HM79-40180
HM79-40220
HM79-40270
HM79-40330
HM79-40390
HM79-40470
HM79-40560
HM79-40680
HM79-40820
HM79-40101
HM79-40121
HM79-40151
HM79-40181
HM79-40221
HM79-40271
HM79-40331
HM79-40391
HM79-40471
Inductance
µH ± 20%
(1)
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
DC
Resistance
Ω
Max.
0.080
0.089
0.104
0.111
0.129
0.153
0.170
0.217
0.252
0.282
0.332
0.406
0.481
0.536
0.755
1.022
1.200
1.306
1.495
0.07
0.08
0.09
0.10
0.11
0.12
0.13
0.16
0.18
0.24
0.28
0.37
0.43
0.47
0.64
0.71
0.96
1.11
1.26
1.77
1.96
Rated
Current
Amps
(2)
1.44
1.39
1.24
1.12
1.07
0.94
0.85
0.74
0.68
0.64
0.59
0.54
0.51
0.49
0.40
0.36
0.31
0.29
0.28
2.30
2.00
1.80
1.60
1.50
1.30
1.20
1.10
1.00
0.94
0.85
0.78
0.72
0.66
0.58
0.51
0.49
0.42
0.40
0.36
0.34
6
Notes: 1. Inductance measured at 1.0kHz without DC current.
2. Rated DC current is the approximate current at which inductance will be decreased by 10% from its initial (zero DC) value
or the DC current at which
∆T
= 40°C, whichever is lower.
6-175
Model HM79 Series
SPECIFICATIONS
Part
Number
HM79-50100
HM79-50120
HM79-50150
HM79-50180
HM79-50220
HM79-50270
HM79-50330
HM79-50390
HM79-50470
HM79-50560
HM79-50680
HM79-50820
HM79-50101
HM79-50121
HM79-50151
HM79-50181
HM79-50221
HM79-50271
HM79-50331
HM79-50391
HM79-50471
HM79-50561
Inductance
µH ± 20%
(1)
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
DC
Resistance
Ω
Max.
0.053
0.061
0.070
0.081
0.088
0.100
0.120
0.151
0.170
0.199
0.223
0.252
0.344
0.396
0.544
0.621
0.721
0.949
1.100
1.245
1.526
1.904
Rated
Current
Amps
(2)
2.38
2.13
1.87
1.73
1.60
1.44
1.26
1.20
1.10
1.01
0.91
0.85
0.74
0.69
0.61
0.56
0.53
0.45
0.42
0.38
0.35
0.32
Notes: 1. Inductance measured at 1.0kHz without DC current.
2. Rated DC current is the approximate current at which inductance will be decreased by 10% from its initial (zero DC) value
or the DC current at which
∆T
= 40°C, whichever is lower.
6-176
Model HM79 Series
SPECIFICATIONS
Part
Number
HM79-60100
HM79-60120
HM79-60150
HM79-60180
HM79-60220
HM79-60270
HM79-60330
HM79-60390
HM79-60470
HM79-60560
HM79-60680
HM79-60820
HM79-60101
HM79-60121
HM79-60151
HM79-60181
HM79-60221
HM79-60271
HM79-60331
HM79-60391
HM79-60471
HM79-60561
HM79-60681
HM79-60821
Inductance
µH ± 20%
(1)
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
DC
Resistance
Ω
Max.
0.06
0.07
0.08
0.09
0.10
0.11
0.12
0.14
0.17
0.19
0.22
0.25
0.35
0.40
0.47
0.63
0.73
0.97
1.15
1.30
1.48
1.90
2.25
2.55
Rated
Current
Amps
(2)
2.60
2.45
2.27
2.15
1.95
1.76
1.50
1.37
1.28
1.17
1.11
1.00
0.97
0.89
0.78
0.72
0.66
0.57
0.52
0.48
0.42
0.33
0.28
0.24
Notes: 1. Inductance measured at 1.0kHz without DC current.
2. Rated DC current is the approximate current at which inductance will be decreased by 10% from its initial (zero DC) value
or the DC current at which
∆T
= 40°C, whichever is lower.
6
6-177
Model HM79 Series
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