Electrical / Environmental
•
•
•
•
•
Operating Temperature Range
Ambient Temperature, Maximum
Temperature Rise, Maximum
Insulation System
Operating Frequency
-40°C to +155°C
100°C
50°C
Class F, 155°C
Up to 400kHz
Shielded Drum Compact Package Low Cost Inductors
0
7,28
6,84
HM55
US
S
RoH
liant
mp
Co
Specifications
Part
Number
HM55-12R40LF
HM55-14R40LF
HM55-21R43LF
HM55-21R95LF
HM55-211R3LF
HM55-22R79LF
HM55-24R28LF
HM55-26R50LF
HM55-311R4LF
HM55-313R0LF
HM55-315R6LF
HM55-321R0LF
Notes:
Inductance
100 kHz
100 kHz, 0.1 V
@ 0 Adc
@ I
rated
µH
± 10%
µH Min. µH Typ.
0.40
0.40
0.43
0.95
1.38
0.79
0.28
0.50
1.40
3.00
5.60
1.0
0.32
0.32
0.36
0.76
1.10
0.56
0.21
0.36
1.08
2.43
4.86
0.72
0.35
0.35
0.40
0.84
1.25
0.63
0.25
0.40
1.20
2.70
5.40
0.80
I
rated (1)
(Adc)
20
15
18
22.5
15
27
30
40
35
21
9
40
I
sat (2)
(Adc)
29
38
27
33
22
39
85
50
50
30
14
56
DCR
(3)
m
W
± 5%
1.00
1.75
0.77
1.28
2.26
1.20
0.72
0.90
0.98
2.60
7.30
1.25
Dim D.
(mm
± 0.5)
8.76
8.40
4.10
6.90
6.60
12.5
12.7
12.7
6.60
9.45
7.11
15.24
Dim. E
(mm
± 0.1)
1.30
1.00
1.30
1.30
1.05
1.45
1.30
1.50
1.65
1.30
0.91
1.50
Fig.
2
2
1
1
1
2
2
2
1
1
1
2
(1) Rated current, I
rated
, is the approximate DC current at which inductance will be decreased by 20% from its initial (zero DC) value or the current at which
∆T = 50°C, whichever is lower.
(2) I
sat
is the saturation current at which inductance rolls off approximately 30% from its initial value.
(3) DC resistance is measured at 25°C.
Outline Dimensions (Inch/mm)
Figure 1
Figure 2
Case Size
12
14
21
22
24
26
31
32
Fig.
2
2
1
2
2
2
1
2
A
.295
7.50
.295
7.50
.413
10.5
.413
10.5
.413
10.5
.413
10.5
.532
13.5
.532
13.5
B
.295
7.50
.295
7.50
.433
11.0
.413
10.5
.413
10.5
.413
10.5
.543
13.8
.532
13.5
C
.433
11.0
.295
7.50
.413
10.5
.413
10.5
.295
7.50
.355
9.00
.532
13.5
.492
12.5
Notes:
(A) Refer to Specifications table for
‘D’ & ‘E’ dimensions of each model.
(B) For case size 12 & 14, only BI logo &
datecode will be printed.
Packaging
Standard:
Vacuum Tray
Case Size
12, 14, 21
22
24
26
31, 32
Capacity Per Tray
(Units)
40
44
50
45
44
Capacity Per Carton
(Units)
560
660
600
630
572
2009/10 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
43
www.bitechnologies.com
We reserve the right to change specifications without prior notice.
Electrical Characteristics @ 25°C
(A) Case size 12, 14, 21, 22 & 24
44
MAGNETIC COMPONENTS SELECTOR GUIDE 2009/10 EDITION
We reserve the right to change specifications without prior notice.
www.bitechnologies.com
Electrical Characteristics @ 25°C (Cont’d)
(B) Case size 26, 31 & 32
Ordering Information
Model Series
Case Size:
12 = Figure 2
14 = Figure 2
21 = Figure 1
22 = Figure 2
HM55 - 21
1R3
LF
Lead-Free
24 = Figure 2
26 = Figure 2
31 = Figure 1
32 = Figure 2
Inductance Code:
First 2 digits are significant. Last
digit denotes the number of trailing
zeros. For values below 10µH, ”R”
denotes the decimal point.
www.bitechnologies.com
2009/10 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
45
We reserve the right to change specifications without prior notice.
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