MODEL HM78 SERIES
Shielded
Surface Mount
Inductors
NEW PRODUCT
FEATURES & BENEFITS
• Magnetic shielded construction for high density board assembly
• High performance, low loss ferrite core is excellent for high frequency applications
• Low profile designed for machine placement
• 10µH to 1,000µH inductance range
• Up to 12 amps continuous
• Compatible with vapor phase and infrared reflow soldering
• Two styles available
• Custom designs available
APPLICATIONS
• Laptop and notebook computers, PDAs
• DC/DC converter in distributed power system and hand held equipment
• Inductor for general purpose
ELECTRICAL / ENVIRONMENTAL
6
-25°C to +85°C
-40°C to +85°C
Class B, 130°C
40°C
Operating Temperature Range
Storage Temperature Range
Insulation System
Temperature Rise, Maximum
Specifications subject to change without notice.
6-97
Model HM78 Series
SPECIFICATIONS
Part Number
HM78-10100
HM78-10120
HM78-10150
HM78-10180
HM78-10220
HM78-10270
HM78-10330
HM78-10390
HM78-10470
HM78-10560
HM78-10680
HM78-20100
HM78-20120
HM78-20150
HM78-20180
HM78-20220
HM78-20270
HM78-20330
HM78-20390
HM78-20470
HM78-20560
HM78-20680
HM78-20820
HM78-20101
HM78-20121
HM78-20151
HM78-20181
HM78-20221
HM78-20271
HM78-30100
HM78-30120
HM78-30150
HM78-30180
HM78-30220
HM78-30270
HM78-30330
Inductance
µH ± 20%
(Note 1)
10
12
15
18
22
27
33
39
47
56
68
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
10
12
15
18
22
27
33
DC
Resistance
Ω
Max
0.14
0.16
0.18
0.25
0.32
0.36
0.41
0.47
0.51
0.72
0.82
0.07
0.08
0.09
0.11
0.12
0.17
0.19
0.21
0.24
0.32
0.37
0.40
0.54
0.62
0.86
0.97
1.31
1.46
0.08
0.11
0.13
0.15
0.20
0.22
0.25
Rated
Current
Amps
(Note 2)
1.00
0.94
0.86
0.78
0.76
0.64
0.61
0.53
0.50
0.46
0.42
1.65
1.50
1.34
1.22
1.10
1.00
0.90
0.83
0.75
0.69
0.63
0.57
0.52
0.47
0.42
0.38
0.35
0.31
1.68
1.52
1.33
1.20
1.07
0.96
0.91
Style
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
6
Note 1: Inductance measured at 1.0kHz without DC current.
Note 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.
6-99
Model HM78 Series
SPECIFICATIONS
Part Number
HM78-30390
HM78-30470
HM78-30560
HM78-30680
HM78-30820
HM78-30101
HM78-30121
HM78-30151
HM78-30181
HM78-30221
HM78-30271
HM78-30331
HM78-30391
HM78-30471
HM78-40100
HM78-40120
HM78-40150
HM78-40180
HM78-40220
HM78-40270
HM78-40330
HM78-40390
HM78-40470
HM78-40560
HM78-40680
HM78-40820
HM78-40101
HM78-40121
HM78-40151
HM78-40181
HM78-40221
HM78-40271
HM78-40331
HM78-40391
HM78-40471
HM78-40561
HM78-40681
HM78-40821
Inductance
µH ± 20%
(Note 1)
39
47
56
68
82
100
120
150
180
220
270
330
390
470
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
0.34
0.39
0.50
0.55
0.74
0.84
0.96
1.42
1.62
1.84
2.59
2.93
3.29
4.67
0.049
0.058
0.081
0.091
0.11
0.15
0.17
0.23
0.26
0.35
0.38
0.43
0.61
0.66
0.88
0.98
1.17
1.64
1.86
2.85
3.01
3.62
4.63
5.20
Rated
Current
Amps
(Note 2)
0.77
0.76
0.68
0.61
0.57
0.50
0.49
0.43
0.39
0.35
0.32
0.28
0.26
0.24
1.84
1.71
1.47
1.31
1.23
1.12
0.96
0.91
0.88
0.75
0.69
0.61
0.60
0.52
0.46
0.42
0.36
0.34
0.32
0.29
0.26
0.23
0.22
0.20
Style
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Note 1: Inductance measured at 1.0kHz without DC current.
Note 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.
6-100
Model HM78 Series
SPECIFICATIONS
Part Number
HM78-50100
HM78-50120
HM78-50150
HM78-50180
HM78-50220
HM78-50270
HM78-50330
HM78-50390
HM78-50470
HM78-50560
HM78-50680
HM78-50820
HM78-50101
HM78-50121
HM78-50151
HM78-50181
HM78-50221
HM78-50271
HM78-50331
HM78-50391
HM78-50471
HM78-50561
HM78-50681
HM78-50821
HM78-50102
HM78-601R4
HM78-602R4
HM78-604R7
HM78-607R6
HM78-60100
HM78-60120
HM78-60150
HM78-60180
HM78-60220
HM78-60270
HM78-60330
HM78-60390
HM78-60470
Inductance
µH ± 20%
(Note 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
1000
1.4
2.4
4.7
7.6
10
12
15
18
22
27
33
39
47
DC
Resistance
Ω
Max
0.025
0.027
0.030
0.038
0.045
0.055
0.063
0.075
0.085
0.11
0.12
0.14
0.165
0.195
0.25
0.29
0.40
0.46
0.51
0.69
0.77
0.88
1.20
1.34
1.53
.0052
0.012
0.016
0.02
0.022
0.025
0.027
0.039
0.043
0.046
0.065
0.073
0.10
Rated
Current
Amps
(Note 2)
4.0
3.5
3.3
3.0
2.8
2.3
2.1
2.0
1.8
1.7
1.5
1.4
1.3
1.1
1.0
0.9
0.8
0.75
0.68
0.65
0.58
0.54
0.48
0.43
0.40
12.0
8.0
6.8
5.9
5.4
4.9
4.5
3.9
3.6
3.4
3.0
2.75
2.5
Style
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
6
Note 1: Inductance measured at 1.0kHz without DC current.
Note 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.
6-101
Model HM78 Series
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