TOROIDAL INDUCTORS
 HMPT-XX
Horizontal
Mount Power Toroidal Inductors
- Stable powdered iron cores
- Low external magnetic field
- Low DCR
- High core saturation current
- Operation -55 to +125°C
DESIGN NOTES
Toroidal inductors described in this brochure are manufactured of the highest quality raw materials utilizing powdered iron core material; they are provided as semi-encapsulated units with thru-hole leads to realize maximum inductance per unit volume.
These toroidal inductors are designed to provide the utmost in versatility for power applications in computers, filters, instruments, missiles, aircraft, business machines, communications equipment and similar type applications. They are designed for printed circuit board applications; package design provides positive standoff to allow solder fillet formation and flush cleaning of solder-flux residue from under the component after the soldering operation.
These inductors are designed
and manufactured to obtain a wide selection of inductance
values in the smallest possible package sizes. Copper leads
are attached and the toroid is secured to the housing with
epoxy resin. Leads are oxygen-free copper per MIL-W-1276
and are tin-plated per MIL-P-81728, semi-bright. Housing
material is flameproof Diallyl Phthalate per ASTM D 5948,
Type SDG-F, and the mounting platform is a liquid crystal
polymer, (LCP) plastic. Diallyl Phthalate can be used continuously
at 450°F;
LCP can be used continuously at 280°C
(536°F),
has a melt point of 335°C
(635°F),
and is inherently flame retardant. Both Diallyl Phthalate
and LCP meet the flammability requirements of UL 94V-0.
These toroidal inductors are
designed to meet the applicable portions of Specification
MIL-PRF-15305, Grade 1, Class B; they are designed for -55
to +125°C
operation. Inductors are capable of withstanding 500V DC
@ 50 microamps applied between inductor to case.
Standard inductance tolerance
is ±10%;
however, units can be supplied to closer tolerances on special
order. All measurements of inductance are obtained at 1kHz
and 1mA rms. Standard inductance values are shown in the
following tables. Since inductance varies with AC/DC current
values, each end application should be evaluated to ensure
proper specification of inductance value. To assist in selecting
optimal inductance during prototyping and breadboarding,
toroid inductor kits are available. Inductance is measured
on HP 4262A and 4284A/42841A LCR Meters. Tabulated current
ratings are those calculated to cause a 40°C
rise in case temperature.
Marking consists of manufacturer's
logo (EC²), part number, terminal identification and
date code of manufacture. All marking is applied by Laser
Label. Coil termination occurs at pin centered under label
and at pin opposite. Pins at 90°
locations are no-connection mounting pins. All leads are
.032" diameter.
PART NUMBER TABLE
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|
ldc for |
ldc for |
ldc for |
|
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|
Rated |
10% drop |
20% drop |
30% drop |
| PART |
L |
|
|
|
DCR |
ldc |
in L |
in L |
in L |
| NUMBER |
(uH) |
A |
B |
C |
(ohms) |
(Amps) |
(Amps) |
(Amps) |
(Amps) |
| HMPT-1.8 |
1.8 |
0.525 |
.200 |
0.350 |
.02 |
1.9 |
0.84 |
1.39 |
1.94 |
| HMPT-2.2 |
2.2 |
0.525 |
.200 |
0.350 |
.02 |
1.8 |
0.76 |
1.26 |
1.75 |
| HMPT-2.7 |
2.7 |
0.585 |
.250 |
0.400 |
.03 |
2.4 |
1.43 |
2.39 |
3.32 |
| HMPT-3.3 |
3.3 |
0.585 |
.250 |
0.400 |
.03 |
2.3 |
1.30 |
2.16 |
3.00 |
| HMPT-3.9 |
3.9 |
0.585 |
.250 |
0.400 |
.03 |
2.2 |
1.19 |
1.99 |
2.76 |
| HMPT-4.7 |
4.7 |
0.585 |
.250 |
0.400 |
.04 |
2.1 |
1.09 |
1.81 |
2.52 |
| HMPT-5.6 |
5.6 |
0.585 |
.250 |
0.400 |
.04 |
2.0 |
0.99 |
1.66 |
2.31 |
| HMPT-6.8 |
6.8 |
0.585 |
.250 |
0.400 |
.04 |
1.9 |
0.90 |
1.50 |
2.09 |
| HMPT-8.2 |
8.2 |
0.585 |
.250 |
0.400 |
.05 |
1.8 |
0.82 |
1.37 |
1.91 |
| HMPT-10 |
10 |
0.585 |
.250 |
0.400 |
.05 |
1.7 |
0.74 |
1.24 |
1.73 |
| HMPT-12 |
12 |
0.700 |
.270 |
0.500 |
.06 |
2.0 |
0.97 |
1.62 |
2.26 |
| HMPT-15 |
15 |
0.700 |
.270 |
0.500 |
.07 |
1.9 |
0.87 |
1.45 |
2.02 |
| HMPT-18 |
18 |
0.700 |
.270 |
0.500 |
.07 |
1.8 |
0.80 |
1.33 |
1.84 |
| HMPT-22 |
22 |
0.770 |
.320 |
0.600 |
.06 |
2.3 |
0.83 |
1.39 |
1.93 |
| HMPT-27 |
27 |
0.770 |
.320 |
0.600 |
.06 |
2.2 |
0.75 |
1.25 |
1.74 |
| HMPT-33 |
33 |
0.820 |
.350 |
0.650 |
.08 |
2.4 |
0.90 |
1.50 |
2.09 |
| HMPT-39 |
39 |
0.820 |
.350 |
0.650 |
.08 |
2.3 |
0.83 |
1.38 |
1.92 |
| HMPT-47 |
47 |
0.820 |
.350 |
0.650 |
.09 |
2.2 |
0.75 |
1.26 |
1.75 |
| HMPT-56 |
56 |
0.937 |
.350 |
0.750 |
.11 |
2.3 |
0.78 |
1.29 |
1.80 |
| HMPT-68 |
68 |
0.937 |
.350 |
0.750 |
.12 |
2.1 |
0.70 |
1.17 |
1.63 |
| HMPT-82 |
82 |
0.937 |
.350 |
0.750 |
.14 |
2.0 |
0.64 |
1.07 |
1.49 |
| HMPT-100 |
100 |
0.937 |
.350 |
0.750 |
.15 |
1.9 |
0.58 |
0.97 |
1.35 |
| HMPT-120 |
120 |
1.070 |
.410 |
0.900 |
.17 |
2.2 |
0.77 |
1.28 |
1.77 |
| HMPT-150 |
150 |
1.070 |
.410 |
0.900 |
.19 |
2.1 |
0.68 |
1.14 |
1.59 |
| HMPT-180 |
180 |
1.070 |
.410 |
0.900 |
.20 |
2.0 |
0.63 |
1.04 |
1.45 |
| HMPT-220 |
220 |
1.340 |
.450 |
1.100 |
.17 |
2.8 |
0.75 |
1.24 |
1.73 |
| HMPT-270 |
270 |
1.340 |
.450 |
1.100 |
.18 |
2.7 |
0.67 |
1.12 |
1.56 |
| HMPT-330 |
330 |
1.340 |
.450 |
1.100 |
.20 |
2.5 |
0.61 |
1.01 |
1.41 |
| HMPT-390 |
390 |
1.450 |
.590 |
1.250 |
.15 |
3.6 |
0.78 |
1.29 |
1.80 |
| HMPT-470 |
470 |
1.450 |
.590 |
1.250 |
.16 |
3.4 |
0.71 |
1.18 |
1.64 |
| HMPT-560 |
560 |
1.656 |
.660 |
1.450 |
.19 |
3.7 |
0.84 |
1.40 |
1.94 |
| HMPT-680 |
680 |
1.656 |
.660 |
1.450 |
.21 |
3.5 |
0.76 |
1.27 |
1.76 |
| HMPT-820 |
820 |
2.030 |
.720 |
1.800 |
.16 |
4.7 |
0.83 |
1.38 |
1.91 |
| HMPT-1000 |
1000 |
2.030 |
.720 |
1.800 |
.18 |
4.4 |
0.75 |
1.25 |
1.73 |
| HMPT-1200 |
1200 |
2.030 |
.750 |
1.800 |
.20 |
4.7 |
0.84 |
1.40 |
1.95 |
| HMPT-1500 |
1500 |
2.030 |
.750 |
1.800 |
.22 |
4.5 |
0.75 |
1.25 |
1.74 |
| HMPT-1800 |
1800 |
2.030 |
.750 |
1.800 |
.25 |
4.3 |
0.69 |
1.14 |
1.59 |
*Nominal L for 0 ldc
ÆRated ldc for a 40°C temperature rise
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