TOROIDAL INDUCTORS
 VMGPT-XX
Vertical Mount Gapped Power Toroidal Inductors
- Stable gapped ferrite cores
- Low external magnetic field
- Low DCR
- Very 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 gapped ferrite cores; they are provided as rectangular vertical standing units to realize maximum inductance per unit volume while requiring minimum mounting space.
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 and incorporate standoff feet on the toroid carrier 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. The toroid is secured to the housing with epoxy resin. Leads are tin-plated per MIL-P-81728, semi-bright. Carrier material is a liquid crystal polymer, (LCP) plastic. LCP can be used continuously at 280°C (536°F), has a melt point of 335°C (635°F), is inherently flame retardant and meets the flammability requirements of UL 94V-0.
These toroidal inductors are
designed to meet the applicable portions of Specification
MIL-PRF-15305, Grade I, Class B; they are designed for -55
to +125°C operation. Inductors are capable of withstanding
500 V 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 frequencies as specified in Specification
MIL-PRF-15305. Standard inductance values are shown in the
following table. Since inductance varies with AC/DC current
values, each end application should be evaluated to ensure
proper specification of inductance value. Inductance is
measured on HP 4262A and 4284A/42841A LCR Meters.
Marking consists of manufacturer's logo (EC²), part
number, terminal identification and date code of manufacture.
All marking is applied by silk-screen process using blue
epoxy paint in accordance with MIL-STD-130, to meet the
permanency of identification required by MIL-STD-202, Method
215.
PART NUMBER TABLE
PART
NUMBER |
*L
(uH) |
W |
L |
H |
A |
B |
DCR
(ohms) |
RATED
Idc
(Amps) |
Idc for
10% drop
in L
(Amps) |
Idc for
20% drop
in L
(Amps) |
Idc for
30% drop
in L
(Amps) |
| VMGPT-5.6 |
5.6 |
.300 |
0.600 |
0.550 |
0.2 |
0.4 |
.005 |
5.7 |
4.70 |
5.20 |
5.45 |
| VMGPT-6.8 |
6.8 |
.300 |
0.600 |
0.550 |
0.2 |
0.4 |
.006 |
5.7 |
4.30 |
4.70 |
4.95 |
| VMGPT-8.2 |
8.2 |
.300 |
0.600 |
0.550 |
0.2 |
0.4 |
.007 |
5.7 |
3.70 |
4.15 |
4.35 |
| VMGPT-10 |
10 |
.300 |
0.600 |
0.550 |
0.2 |
0.4 |
.008 |
5.7 |
3.50 |
3.90 |
4.10 |
| VMGPT-12 |
12 |
.350 |
0.650 |
0.700 |
0.2 |
0.4 |
.009 |
5.7 |
4.90 |
5.40 |
5.70 |
| VMGPT-15 |
15 |
.350 |
0.650 |
0.700 |
0.2 |
0.4 |
.010 |
5.7 |
4.60 |
5.10 |
5.35 |
| VMGPT-18 |
18 |
.350 |
0.650 |
0.700 |
0.2 |
0.4 |
.011 |
5.7 |
4.10 |
4.60 |
4.90 |
| VMGPT-22 |
22 |
.350 |
0.650 |
0.850 |
0.2 |
0.4 |
.013 |
5.7 |
4.30 |
4.70 |
4.90 |
| VMGPT-27 |
27 |
.350 |
0.650 |
0.850 |
0.2 |
0.4 |
.014 |
5.7 |
3.80 |
4.20 |
4.40 |
| VMGPT-33 |
33 |
.350 |
0.650 |
0.850 |
0.2 |
0.4 |
.015 |
5.7 |
3.40 |
3.80 |
3.95 |
| VMGPT-39 |
39 |
.350 |
0.650 |
0.850 |
0.3 |
0.4 |
.016 |
5.7 |
3.20 |
3.55 |
3.75 |
| VMGPT-47 |
47 |
.450 |
0.850 |
1.100 |
0.3 |
0.7 |
.019 |
5.7 |
4.20 |
4.70 |
5.00 |
| VMGPT-56 |
56 |
.450 |
0.850 |
1.100 |
0.3 |
0.7 |
.021 |
5.7 |
4.00 |
4.50 |
4.70 |
| VMGPT-68 |
68 |
.450 |
0.850 |
1.100 |
0.3 |
0.7 |
.023 |
5.7 |
3.60 |
4.05 |
4.30 |
| VMGPT-82 |
82 |
.450 |
0.850 |
1.100 |
0.3 |
0.7 |
.025 |
5.7 |
3.30 |
3.70 |
3.95 |
| VMGPT-100 |
100 |
.450 |
0.850 |
1.100 |
0.3 |
0.7 |
.027 |
5.7 |
3.00 |
3.30 |
3.50 |
| VMGPT-120 |
120 |
.550 |
1.150 |
1.350 |
0.4 |
1.0 |
.031 |
5.7 |
3.40 |
3.80 |
4.00 |
| VMGPT-150 |
150 |
.550 |
1.150 |
1.350 |
0.4 |
1.0 |
.034 |
5.7 |
3.10 |
3.50 |
3.70 |
| VMGPT-180 |
180 |
.550 |
1.150 |
1.350 |
0.4 |
1.0 |
.036 |
5.7 |
2.90 |
3.20 |
3.30 |
| VMGPT-220 |
220 |
.550 |
1.150 |
1.350 |
0.4 |
1.0 |
.041 |
5.7 |
2.70 |
2.95 |
3.10 |
| VMGPT-270 |
270 |
.550 |
1.150 |
1.350 |
0.4 |
1.0 |
.046 |
5.7 |
2.00 |
2.55 |
2.65 |
| VMGPT-330 |
330 |
.650 |
1.300 |
1.350 |
0.5 |
1.1 |
.057 |
5.7 |
2.90 |
3.30 |
3.50 |
| VMGPT-390 |
390 |
.650 |
1.300 |
1.650 |
0.5 |
1.1 |
.063 |
5.7 |
2.70 |
3.00 |
3.20 |
| VMGPT-470 |
470 |
.650 |
1.300 |
1.650 |
0.5 |
1.1 |
.068 |
5.7 |
2.50 |
2.80 |
3.00 |
| VMGPT-560 |
560 |
.650 |
1.300 |
1.650 |
0.5 |
1.1 |
.076 |
5.7 |
2.25 |
2.55 |
2.70 |
| VMGPT-680 |
680 |
.725 |
1.400 |
1.750 |
0.5 |
1.2 |
.069 |
5.7 |
2.80 |
3.20 |
3.40 |
| VMGPT-820 |
820 |
.725 |
1.400 |
1.750 |
0.5 |
1.2 |
.076 |
5.7 |
2.55 |
2.90 |
3.05 |
| VMGPT-1000 |
1000 |
.725 |
1.400 |
1.750 |
0.5 |
1.2 |
.084 |
5.7 |
2.30 |
2.60 |
2.80 |
| VMGPT-1200 |
1200 |
.725 |
1.400 |
1.750 |
0.5 |
1.2 |
.094 |
5.7 |
2.00 |
2.30 |
2.50 |
*Nominal L for 0 Idc
ÆRated Idc for a 40°C temperature rise
|
