Electrical / Environmental
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‘LF’ M
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Shielded Drum Compact Package Low Cost Inductors
•
•
•
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Operating Temperature Range
Ambient Temperature, Maximum
Temperature Rise, Maximum
Insulation System
-40°C to +155°C
100°C
50°C
Class F, 155°C
0
47,28
S 6,8
U
Specifications
100 kHz
@ 0 Adc
µH
±10%
0.40
0.40
0.43
0.95
1.38
0.79
0.28
0.50
1.40
3.00
5.60
1.0
Inductance
100 kHz, 0.1 V
@ I
rated
µH Min.
µH Typ.
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
Ω
±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
Part
Number
HM55-12R40
HM55-14R40
HM55-21R43
HM55-21R95
HM55-211R3
HM55-22R79
HM55-24R28
HM55-26R50
HM55-311R4
HM55-313R0
HM55-315R6
HM55-321R0
Notes:
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) Rate 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
BI XXRXX
YYWW
Fig.
2
2
1
2
2
2
1
2
BI XXRXX
YYWW
21
22
24
26
31
32
Refer to Note (B)
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.
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
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
2006 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
www.bitechnologies.com
We reserve the right to change specifications without prior notice
19
Electrical Characteristics @ 25°C
(A) Case size 12, 14, 21, 22 & 24
20
MAGNETIC COMPONENTS SELECTOR GUIDE 2006 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 Option:
LF= Lead-Free
(No code used for
non lead-free part)
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.
2006 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
www.bitechnologies.com
We reserve the right to change specifications without prior notice
21
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