Un-gapped Pot Core Inductor
The Un-gapped Pot Core Inductors manufactured by Engineered Components Company are designed for RF/low power applications
utilizing low-loss ferrite core material. Un-gapped pot cores can provide significantly higher inductance values at the expense of lower
SRF and operating frequencies. The pot core inductor design shields and isolates the winding from stray magnetic fields and effects from
the surrounding circuit elements.
The standard inductance value tolerance is +/-20% when measured at the frequencies listed (see Table 1). Inductance values and
Q values are measured on an HP 4284A LCR meter. Since inductance values vary with AC/DC current values, each end application should
be evaluated to ensure proper readings. The tabulated current ratings are those calculated to cause a 25 deg. C rise in case
temperature. These pot core inductors are designed to meet the applicable portions of MIL-C-15305, Grade 1, Class B. Temperature
coefficient of inductance is less than 400ppm/deg. C over the operating temperature range of -30 to +70 deg. C. Inductors are capable
of withstanding 500Vdc @ 50 uA applied between the coil and the case.
The inductor and the four copper leads (tin-lead plated) are mounted on a Liquid Crystal Polymer platform, off-white in color, and secured
in epoxy resin by utilizing a black Diallyl Phthalate case. Finished inductor sizes are shown in Table 2. Any exposed pot core is coated
with a conformal coating. Marking, applied by Laser Label, designates one coil termination lead with an indicator dot (see Figure 1).
The opposite lead is also a coil temination lead, while the leads at 90 deg. locations are no-connection mounting leads.
Product Selection Table
PART NUMBER L(mH) SIZE DCR (TYP.) Q (NOM.) SRF TYP. (KHz.) RATED I
DC
(mA)
UPCI-27
27
1
7.0
60
280
270
UPCI-33
33
1
8.0
65
253
250
UPCI-39
39
1
9.0
70
233
240
UPCI-47
47
1
10
75
212
220
UPCI-56
56
2
9.0
65
160
280
UPCI-68
68
2
10
65
155
260
UPCI-82
82
2
11
66
132
250
UPCI-100
100
2
12
67
120
240
UPCI-120
120
2
13.5
68
110
230
UPCI-150
150
2
15
69
100
220
UPCI-180
180
2
16
70
92
210
UPCI-220
220
3
12
45
65
270
UPCI-270
270
3
13.5
48
58
250
UPCI-330
330
3
15
52
52
240
UPCI-390
390
3
16
56
48
230
UPCI-470
470
3
18
60
44
220
UPCI-560
560
3
19
65
40
210
UPCI-680
680
4
18
80
30
230
UPCI-820
820
4
21
90
27
220
UPCI-1000
1000
4
23
100
25
210
UPCI-1200
1200
4
26
110
22
200
UPCI-1500
1500
4
30
120
20
180
UPCI-1800
1800
5
30
140
18
260
UPCI-2200
2200
5
34
160
16
240
UPCI-2700
2700
5
38
180
14
230
UPCI-3300
3300
5
42
200
13
220
UPCI-3900
3900
6
31
70
12
310
UPCI-4700
4700
6
34
75
11
300
UPCI-5600
5600
6
37
80
10
280
UPCI-6800
6800
7
42
90
10
310
UPCI-8200
8200
7
47
100
9
290
UPCI-10000 10000 7
53
110
8
270
UPCI-12000 12000 7
60
120
7
260
Special modules can often be manufactured to provide for customer specific applications.
Table 1
Test Frequency Table
L(Mh) RANGE L & Q TEST FREQUENCY
27 - 200
2.5KHz
200 - 3600
.79KHz
3600 - 12000
250Hz
Table 2
Size Table
SIZE
A
1
.700
2
.820
3 1.025
4 1.145
5 1.340
6 1.525
7 1.750
Figure 1
C
B
.360
.440
.520
.640
.740
.850
.980
C
D
.430 .500
.550 .650
.720 .800
.850 .950
1.010 1.100
1.200 1.300
1.400 1.550
.250
UPCI-150
YYWW
B
.030
.032
DATE
CODE
+/-.020
.140
A
D
engineered components company
A Division of Cornucopia Tool & Plastics, Inc. PO Box 1915, 448 Sherwood Rd., Paso Robles CA 93447
Phone: 805-369-0034
Fax:
805-369-0033
Web: www.ec2.com
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