MODEL HM77 SERIES
Low Profile
Surface Mount Inductors
FEATURES AND BENEFITS
•
•
•
•
High performance low loss powder iron core is excellent for high frequency applications
Low profile, designed for machine placement
Compatible with vapor phase and infrared reflow soldering
Custom designs available
APPLICATIONS
• Laptop and notebook computers
• DC/DC converter in distributed power system
• Output ripple current filter
ELECTRICAL / ENVIRONMENTAL
Insulation Resistance, Minimum
Operating Temperature Range
Ambient Temperature, Maximum
Insulation System
Temperature Rise, Maximum
SCHEMATIC
100 Megohms
-40°C to +130°C
80°C
Class B, 130°C
50°C
6
1
2
Specifications subject to change without notice.
Last Update: 04/28/2003.
6-173
Model HM77 Series
SPECIFICATIONS
Operating Values
Part
Number
HM77-10001
HM77-20001
HM77-30001
HM77-40002
HM77-50002
HM77-60002
HM77-70002
HM77-80003
HM77-90003
HM77-10003
HM77-11003
HM77-12003
HM77-13003
HM77-14004
HM77-15004
HM77-16004
HM77-17004
HM77-18004
HM77-19004
HM77-20005
HM77-21005
HM77-22006
HM77-23006
HM77-24006
HM77-25006
HM77-26006
HM77-27006
HM77-28006
HM77-29006
HM77-30004
HM77-31007
HM77-32007
HM77-33010
HM77-34010
HM77-35010
HM77-36010
HM77-37010
HM77-38010
HM77-39010
L
DC
µH
(1)
1.01
6.20
17.6
3.80
9.40
29.7
114
2.50
5.10
16.2
58.1
192
383
0.91
1.32
4.90
9.00
29.1
645
1.75
2.50
2.03
3.50
4.70
9.30
16.1
50
1070
68
33
2.5
1.68
5.2
77
38
114
250
168
53
I
DC
Amps
3.40
1.40
1.00
4.80
2.80
1.40
0.94
8.00
5.40
2.70
1.30
0.90
0.72
13.3
11.5
7.80
5.50
2.70
0.74
10.9
11.4
13
12.4
10.4
7.20
5.10
2.60
0.710
3.00
3.0
11.4
13.9
15.4
2.7
3.0
2.22
1.50
1.81
3.00
ETop
V-µS
(2)
0.532
1.33
2.40
1.76
2.70
4.60
10
1.77
2.51
4.29
7.83
15.7
23.5
1.035
1.33
3.04
4.06
6.90
36.5
1.83
2.23
3.30
3.13
3.58
4.92
6.27
10.5
54.4
9.50
9.50
2.23
1.83
5.21
52.8
(4)
29.7
(4)
62.7
(4)
72.6
(5)
75.9
(5)
42.9
(5)
Case
Size
1
1
1
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
4
5
5
6
6
6
6
6
6
6
6
4
7
7
10
10
10
10
10
10
10
L w/o DC
Lo
µH
± 20%
Control Values
(3)
DC
Resistance
m
Ω,
Nom.
DC
Resistance
m
Ω
Max.
1.10
7.00
22.7
5.20
12.3
35.3
167
3.80
7.50
21.9
73
292
672
1.25
2.10
7.90
14
40.5
1134
2.80
4.20
2.70
6.50
8.40
16
25.9
72.9
1950
122
48
4.20
2.80
10.5
84.6
49
121
275
159
52
11.00
60.30
109.00
17.0
37.80
141.00
330.00
7.20
14.30
54.70
233.00
472.00
750.00
4.56
4.56
10.50
19.30
75.80
1040
5.68
6.19
5.60
7.54
8.30
16.3
30.3
115
1480
85
48.5
5.20
3.60
6.20
90
50
100
250
190
80
12.5
70
125
19.1
43.4
166
380
8.30
17.7
63
290
560
862
5.70
5.70
12.4
22.3
85
1250
6.90
7.50
6.80
8.7
10.0
18.7
32
130
1700
102
59
6.20
4.0
7.40
110.0
70.0
120.0
290.0
220.0
100.0
Notes: (1) Inductance values are rated at -40°C to +130°C operating temperature range with rated DC current flowing and the operating ETop across the inductor.
(2) ETop is rated at 500 kHz except where designated otherwise.
(3) The control values of inductance are measured at the operating flux density equal or less than 10 gauss and without DC current.
(4) ETop is rated at 250 kHz.
(5) ETop is rated at 150 kHz.
6-174
Model HM77 Series
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