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ELECTRICAL SPECIFICATIONS @ 25°C DC AMPS TO PRODUCEAMAXIMUM
TEMPERATURE RISE FROM 25°C AMBIENT
\
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API Delevan®
Actual Size
(HCT-44X)
SERIES HCTR
HCT
High Current Toroidal Inductors
Physical Parameters:
Package A B C D E F
Max. Max. Max.
HCT-37X 0.615 0.600 0.370 0.500 0.440 0.500
HCT-44X 0.665 0.665 0.400 0.560 0.490 0.560
HCT-50X 0.740 0.740 0.400 0.630 0.560 0.630
HCT-68X 0.945 0.940 0.400 0.820 0.700 0.820
Above dimensions in inches and unless otherwise stated all
tolerances are ± 0.010
Mechanical Configuration
Units are surface mount, low profile, self-leaded devices
Frequency Range 1kHz up to 1 MHz
Operating Temperature Range –30°C to +130°C
Leads Solder tinned
Materials Meet UL94V-0
Optional Tolerances As low as 10% available on some values.
Consult factory for details.
Maximum Power Dissipation at 25°C Ambient
HCT-37x, 0.9 W
HCT-44x, 1.0 W
HCT-50x, 1.1 W
HCT-68x, 1.2 W
Marking API; part number.
Example: HCT-504
API
HCT-504
Packaging Bulk; contact factory for tape & reel options.
Power Inductors
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
SRF (MHz,
TYPICAL)
L & Q TEST
FREQUENCY (kHz)
ELECTRICAL SPECIFICATIONS @ 25°C DC AMPS TO PRODUCE A MAXIMUM
TEMPERATURE RISE FROM 25°C AMBIENT
INDUCTANCE
(µH) ± 25%
Q TYPICAL
DC RESISTANCE
MAXIMUM (mΩ)
DC RESISTANCE
TYPICAL (mΩ)
5°C
15°C
25°C
35°C
45°C
55°C
DASH NUMBER*
2.2
3.4
5.4
6.8
3.2
4.7
6.4
9.8
5.8
7.2
9.8
14.6
5.3
10.7
15.0
21.5
5.73
4.58
3.62
3.23
5.13
4.23
3.60
2.91
3.97
3.55
3.04
2.49
4.35
3.06
2.58
2.16
9.75
7.78
6.17
5.49
8.73
7.20
6.13
4.95
6.75
6.04
5.17
4.23
7.40
5.21
4.40
3.67
12.30
9.87
7.82
6.97
11.00
9.14
7.78
6.28
8.56
7.66
6.56
5.37
9.39
6.60
5.58
4.66
14.30
11.40
9.10
8.10
12.80
10.60
9.05
7.31
9.96
8.91
7.63
6.25
10.90
7.68
6.49
5.42
16.00
12.80
10.10
9.04
14.30
11.80
10.00
8.15
11.10
9.94
8.50
6.97
12.10
8.57
7.24
6.04
17.40
13.90
11.00
9.83
15.60
12.80
10.90
8.87
12.00
10.80
9.25
7.58
13.20
9.32
7.87
6.57
2.5
4.0
6.3
7.9
3.6
5.4
7.5
11.4
6.6
8.3
11.4
17.0
6.2
12.3
17.5
25.0
260
160
110
100
110
85
65
55
55
45
35
29
30
24
21
16
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
32
27
27
24
33
29
29
26
25
23
23
22
35
35
30
30
1.25
2.1
2.8
4.2
2.8
4.2
5.7
9.0
6.5
8.4
12.5
17.0
10.5
17.6
22.0
29.0
-371
-372
-373
-374
-441
-442
-443
-444
-501
-502
-503
-504
-681
-682
-683
-684
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
1/2009
API_newlayouts_single:APIcatalog_newlayouts 8/26/10 9:43 AM Page 81
PEFIMEABILITY v5. TVPICAL INDUCTANCE
AC FLUX DENSITY FF DUETO DC BIAS
100
no
8
m
8
20 7,77,,,,, 7 HGT-374 7
to
m
S
“A INDUC'TANCE REMAINING
é
\
\
100
90
80
7D
60
50
AU
30
20
I 0
% INITIAL PERMEABILITV(%|11)
E.» 1’
1 O 1 DO I 000 I 0000
AC FLUX DENSITY (GAUSS)
é
“/9 INDUCTANCE REMAINING
100
90
EU
70
60
50
40
30
20
I O
"/0 INDUCTANCE REMAINING
100
90
BO
70
60
50
40
30
20
I D
% INDUCTANCE REMAINING
ADC (AMPS)
API Delevan®
For frequencies ≤ 10 kHz
(mW/cm3) Hz Gauss
Core loss = 1.47 x 10
–8 f 0.971 B2.11
For frequencies ≥ 10 kHz
(mW/cm3) Hz Gauss
Core loss = 9.07 x 10
–10 f 1.26 B2.11
Bpk =
A:
T37 = 0.064 cm2; T44 = 0.099 cm2;
T50 = 0.112 cm2; T68 = 0.179 cm2
Erms 108
4.44 Anf
Power Inductors
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
SERIES HCTR
HCT
High Current Toroidal Inductors
This information is
intended to be used in
assisting the designer in
part selection. Each
application may contain
other variables which
must be considered in
part selection, such as
temperature effects,
waveform distortion, etc.
API Delevan
Sales/Engineering is
available to provide
information as needed to
fit each application.
Data is representative of
a DC current with less
than 1% ripple and an
AC waveform less than:
50 gauss on the
HCT-37X, 25 gauss on
the HCT-44X, 15 gauss
on the HCT-50X and 10
gauss on the
HCT-68X.The effect of
AC or ripple flux can be
significant in many DC
inductor applications.
When significantly
greater AC flux density is
present, it becomes
necessary to consider its
effect on both core loss
and permeability
(inductance).
All data points, on the
above graphs, that
exceed the rated DC
current specified for a
55°C rise from a 25°C
ambient are for design
reference only and are
not intended to imply
continuous use at those
DC current levels.
1/2009
API_newlayouts_single:APIcatalog_newlayouts 8/26/10 9:44 AM Page 82
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