 Features:
-
High DC current bias capability
-
Swinging inductance ideal for switchmode output
inductors
-
Low radiated field due to closed magnetic path
with distributed gap
-
130°C rating (ambient plus rise)
-
UL94V-0 header
-
Vertical design for smaller PC footprint
How to choose your model:
- Calculate the energy storage needed
based on inductance and current at full load
- Choose a single layer model (LTV-xxxx1-xxxx)
for highest SRF and lowest skin/proximity
effect (lowest ACR), and lowest capacitance
- Choose a full coil model (LTV-xxxx0-xxxx) to
maximize the energy storage capability
Notes
- Temperature rise is 40°C based on DC
Current, no core loss, and 20°C ambient.
De-rate for higher ambients and core loss
- AC resistance (ACR) will be higher than
DC resistance (DCR) due to skin/proximity effect
and the amount of ripple current present
- Inductance at different IDC levels can
be calculated using the Bias Factor Curve (forthcoming)
Design Information, LTV Switchmode Inductors
Precision
Model Number |
Figure
Number |
Data
on Page |
|
A
MAX |
B
MAX |
C
MAX |
D
DIA MAX |
E
MIN |
F
NOM |
G
NOM |
| LTV-1812x-xxxx |
1 |
4 |
mm |
17.8 |
12.3 |
20.7 |
1.17 |
5.2 |
- |
12.7 |
| |
|
|
in |
0.7 |
0.484 |
0.815 |
0.046 |
0.205 |
|
0.5 |
| LTV-2318x-xxxx |
2 |
5 |
mm |
23.2 |
18.4 |
27.2 |
1.05 |
3.3 |
6.35 |
15.24 |
| |
|
|
in |
0.913 |
0.724 |
1.07 |
0.041 |
0.13 |
0.25 |
0.6 |
| LTV-3316x-xxxx |
3 |
6 |
mm |
33 |
15.6 |
36.3 |
1.3 |
4.57 |
10.16 |
20.32 |
| |
|
|
in |
1.3 |
0.614 |
1.43 |
0.051 |
0.18 |
0.4 |
0.8 |
| LTV-3621x-xxxx |
3 |
7 |
mm |
35.6 |
20.7 |
38.6 |
1.3 |
4.57 |
15.24 |
22.86 |
| |
|
|
in |
1.4 |
0.815 |
1.52 |
0.051 |
0.18 |
0.6 |
0.9 |
| LTV-4521x-xxxx |
3 |
8 |
mm |
45.2 |
20.7 |
48.3 |
1.3 |
4.57 |
15.24 |
22.86 |
| |
|
|
in |
1.78 |
0.815 |
1.9 |
0.051 |
0.18 |
0.6 |
0.9 |
Notes:
1. “A” and “C” are reduced for layer coils in lower current
ranges.
2. Other vertical sizes available on request.
3. Horizontal version of all sizes available on request.
LTV Switchmode Inductors, Toroid, Full Coil Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-18120-0530 |
1 |
52.8 |
33.3 |
0.054 |
2.79 |
15.8 |
129 |
| LTV-18120-0890
| 1 |
89.2 |
55.5 |
0.086 |
2.20 |
20.5 |
134 |
| LTV-18120-0141 |
1 |
144 |
89.6 |
0.137 |
1.74 |
26.0 |
135 |
| LTV-18120-0261 |
1 |
261 |
158 |
0.228 |
1.35 |
35.1 |
144 |
| LTV-18120-0431 |
1 |
429 |
260 |
0.369 |
1.06 |
44.9 |
146 |
| LTV-18120-0701 |
1 |
703 |
421 |
0.586 |
0.840 |
57.5 |
148 |
| LTV-18120-0122 |
1 |
1160 |
694 |
0.953 |
0.659 |
74.1 |
150 |
| LTV-18120-0192 |
1 |
1850 |
1090 |
1.45 |
0.534 |
93.4 |
155 |
| LTV-18120-0312 |
1 |
3070 |
1820 |
2.42 |
0.414 |
120 |
156 |
| LTV-18120-0472 |
1 |
4720 |
2800 |
3.77 |
0.331 |
149 |
153 |
| LTV-18120-0722 |
1 |
7200 |
4280 |
5.77 |
0.268 |
184 |
153 |
| LTV-18120-0123 |
1 |
11500 |
6850 |
9.24 |
0.212 |
233 |
154 |
LTV Switchmode Inductors, Toroid, Single Layer Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-18121-04R0 |
1 |
4.00 |
2.40 |
0.0035 |
11.0 |
4.34 |
145 |
| LTV-18121-05R6 |
1 |
5.58 |
3.35 |
0.0049 |
9.25 |
5.13 |
143 |
| LTV-18121-07R4 |
1 |
7.43 |
4.57 |
0.0069 |
7.79 |
5.91 |
138 |
| LTV-18121-0110 |
1 |
10.7 |
6.58 |
0.0100 |
6.47 |
7.10 |
137 |
| LTV-18121-0150 |
1 |
14.6 |
9.13 |
0.0143 |
5.38 |
8.28 |
132 |
| LTV-18121-0190 |
1 |
19.0 |
12.1 |
0.0202 |
4.53 |
9.46 |
124 |
| LTV-18121-0260 |
1 |
25.9 |
16.8 |
0.0292 |
3.77 |
11.0 |
119 |
| LTV-18121-0340 |
1 |
33.8 |
22.5 |
0.0411 |
3.18 |
12.6 |
113 |
| LTV-18121-0430 |
1 |
42.8 |
29.1 |
0.0575 |
2.68 |
14.2 |
104 |
| LTV-18121-0560 |
1 |
55.5 |
38.3 |
0.0813 |
2.26 |
16.2 |
97 |
| LTV-18121-0730 |
1 |
72.9 |
51.7 |
0.117 |
1.88 |
18.5 |
91 |
| LTV-18121-0890 |
1 |
89.2 |
64.7 |
0.160 |
1.61 |
20.5 |
83 |
| LTV-18121-0121 |
1 |
115 |
85.1 |
0.228 |
1.35 |
23.5 |
77 |
| LTV-18121-0141 |
1 |
144 |
109 |
0.315 |
1.15 |
26.0 |
72 |
| LTV-18121-0191 |
1 |
186 |
142 |
0.451 |
0.958 |
29.6 |
65 |
| LTV-18121-0231 |
1 |
233 |
183 |
0.634 |
0.808 |
33.1 |
59 |
| LTV-18121-0291 |
1 |
285 |
229 |
0.865 |
0.692 |
36.7 |
55 |
| LTV-18121-0361 |
1 |
364 |
296 |
1.24 |
0.580 |
41.4 |
50 |
LTV Switchmode Inductors, Toroid, Full Coil Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-23180-0450 |
2 |
45.4 |
28.9 |
0.0261 |
5.01 |
8.62 |
362 |
| LTV-23180-0740 |
2 |
73.9 |
46.6 |
0.0403 |
4.03 |
11.0 |
378 |
| LTV-23180-0131 |
2 |
130 |
79.3 |
0.0665 |
3.14 |
14.6 |
391 |
| LTV-23180-0221 |
2 |
221 |
135 |
0.109 |
2.45 |
19.0 |
405 |
| LTV-23180-0381 |
2 |
381 |
229 |
0.177 |
1.92 |
25.0 |
422 |
| LTV-23180-0631 |
2 |
630 |
375 |
0.285 |
1.52 |
32.1 |
433 |
| LTV-23180-0112 |
2 |
1060 |
624 |
0.462 |
1.19 |
41.6 |
442 |
| LTV-23180-0182 |
2 |
1750 |
1030 |
0.750 |
0.935 |
53.5 |
450 |
| LTV-23180-0282 |
2 |
2780 |
1630 |
1.18 |
0.746 |
67.5 |
453 |
| LTV-23180-0462 |
2 |
4570 |
2650 |
1.90 |
0.587 |
86.5 |
456 |
| LTV-23180-0732 |
2 |
7270 |
4220 |
2.98 |
0.469 |
109 |
464 |
| LTV-23180-0123 |
2 |
11800 |
6770 |
4.82 |
0.369 |
139 |
461 |
LTV Switchmode Inductors, Toroid, Single Layer Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-23181-0120 |
2 |
12.2 |
7.38 |
0.0060 |
10.5 |
4.46 |
407 |
| LTV-23181-0160 |
2 |
15.6 |
9.72 |
0.0083 |
8.91 |
5.05 |
386 |
| LTV-23181-0220 |
2 |
21.6 |
13.6 |
0.0120 |
7.39 |
5.95 |
371 |
| LTV-23181-0290 |
2 |
28.6 |
18.3 |
0.0171 |
6.2 |
6.84 |
351 |
| LTV-23181-0390 |
2 |
39.4 |
25.6 |
0.0242 |
5.2 |
8.03 |
346 |
| LTV-23181-0520 |
2 |
51.9 |
34.7 |
0.0351 |
4.32 |
9.21 |
324 |
| LTV-23181-0660 |
2 |
66.2 |
45.0 |
0.0495 |
3.64 |
10.4 |
298 |
| LTV-23181-0860 |
2 |
86.4 |
59.6 |
0.0699 |
3.06 |
11.9 |
279 |
| LTV-23181-0111 |
2 |
109 |
77.7 |
0.0983 |
2.58 |
13.4 |
258 |
| LTV-23181-0151 |
2 |
146 |
106 |
0.142 |
2.15 |
15.5 |
245 |
| LTV-23181-0191 |
2 |
188 |
139 |
0.201 |
1.80 |
17.6 |
225 |
| LTV-23181-0241 |
2 |
235 |
177 |
0.281 |
1.53 |
19.6 |
207 |
| LTV-23181-0301 |
2 |
296 |
226 |
0.396 |
1.29 |
22.0 |
188 |
| LTV-23181-0371 |
2 |
372 |
291 |
0.550 |
1.09 |
24.7 |
173 |
| LTV-23181-0481 |
2 |
477 |
382 |
0.789 |
0.911 |
28.0 |
158 |
| LTV-23181-0581 |
2 |
584 |
472 |
1.10 |
0.773 |
30.9 |
141 |
| LTV-23181-0731 |
2 |
727 |
603 |
1.51 |
0.659 |
34.5 |
131 |
| LTV-23181-0911 |
2 |
913 |
767 |
2.13 |
0.554 |
38.7 |
117 |
LTV Switchmode Inductors, Toroid, Full Coil Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-33160-0700 |
3 |
69.8 |
39.0 |
.0204 |
7.36 |
7.37 |
1060 |
| LTV-33160-0121 |
3 |
115 |
63.2 |
.0323 |
5.84 |
9.48 |
1080 |
| LTV-33160-0201 |
3 |
198 |
107 |
.0526 |
4.58 |
12.4 |
1120 |
| LTV-33160-0351 |
3 |
347 |
184 |
.0864 |
3.58 |
16.4 |
1180 |
| LTV-33160-0581 |
3 |
581 |
305 |
.139 |
2.82 |
21.3 |
1210 |
| LTV-33160-0102 |
3 |
1010 |
524 |
.228 |
2.20 |
28.0 |
1270 |
| LTV-33160-0172 |
3 |
1690 |
860 |
.371 |
1.73 |
36.2 |
1290 |
| LTV-33160-0272 |
3 |
2680 |
1370 |
.582 |
1.38 |
45.7 |
1300 |
| LTV-33160-0442 |
3 |
4410 |
2230 |
.935 |
1.09 |
58.5 |
1320 |
| LTV-33160-0742 |
3 |
7350 |
3670 |
1.52 |
.853 |
75.6 |
1340 |
| LTV-33160-0123 |
3 |
11700 |
5870 |
2.43 |
.674 |
95.6 |
1340 |
LTV Switchmode Inductors, Toroid, Single Layer Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-33161-0280 |
3 |
27.6 |
15.5 |
.0084 |
11.5 |
4.63 |
1030 |
| LTV-33161-0390 |
3 |
38.5 |
21.9 |
.0123 |
9.46 |
5.48 |
980 |
| LTV-33161-0510 |
3 |
51.3 |
30.2 |
.0175 |
7.94 |
6.32 |
952 |
| LTV-33161-0660 |
3 |
65.9 |
39.5 |
.0245 |
6.71 |
7.16 |
889 |
| LTV-33161-0870 |
3 |
86.7 |
53.3 |
.0348 |
5.73 |
8.21 |
875 |
| LTV-33161-0111 |
3 |
110 |
69.3 |
.0485 |
4.77 |
9.27 |
788 |
| LTV-33161-0141 |
3 |
143 |
92.2 |
.0685 |
4.01 |
10.5 |
741 |
| LTV-33161-0191 |
3 |
185 |
123 |
.0976 |
3.36 |
12.0 |
694 |
| LTV-33161-0231 |
3 |
233 |
157 |
.136 |
2.85 |
13.5 |
638 |
| LTV-33161-0301 |
3 |
295 |
203 |
.192 |
2.40 |
15.2 |
584 |
| LTV-33161-0381 |
3 |
383 |
270 |
.272 |
2.02 |
17.3 |
551 |
| LTV-33161-0481 |
3 |
482 |
349 |
.376 |
1.72 |
19.4 |
516 |
| LTV-33161-0601 |
3 |
604 |
450 |
.534 |
1.44 |
21.7 |
467 |
| LTV-33161-0771 |
3 |
767 |
579 |
.743 |
1.22 |
24.4 |
431 |
| LTV-33161-0951 |
3 |
948 |
730 |
1.05 |
1.03 |
27.2 |
387 |
| LTV-33161-0122 |
3 |
1200 |
946 |
1.49 |
.862 |
30.5 |
351 |
LTV Switchmode Inductors, Toroid, Full Coil Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-36210-0800 |
3 |
79.9 |
47.5 |
.0164 |
8.64 |
5.62 |
1770 |
| LTV-36210-0131 |
3 |
130 |
77.3 |
.0259 |
6.88 |
7.17 |
1830 |
| LTV-36210-0221 |
3 |
219 |
129 |
.0416 |
5.43 |
9.30 |
1900 |
| LTV-36210-0381 |
3 |
377 |
215 |
.0679 |
4.25 |
12.2 |
1940 |
| LTV-36210-0621 |
3 |
623 |
352 |
.109 |
3.36 |
15.7 |
1990 |
| LTV-36210-0102 |
3 |
1050 |
584 |
.175 |
2.65 |
20.3 |
2050 |
| LTV-36210-0182 |
3 |
1810 |
1000 |
.287 |
2.07 |
26.7 |
2140 |
| LTV-36210-0302 |
3 |
3010 |
1640 |
.467 |
1.62 |
34.5 |
2160 |
| LTV-36210-0482 |
3 |
4810 |
2620 |
.734 |
1.29 |
43.6 |
2180 |
| LTV-36210-0792 |
3 |
7880 |
4260 |
1.19 |
1.02 |
55.5 |
2220 |
| LTV-36210-0133 |
3 |
13100 |
7100 |
1.93 |
.798 |
72.1 |
2260 |
LTV Switchmode Inductors, Toroid, Single Layer Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-36211-0380 |
3 |
38.0 |
23.0 |
.0081 |
12.3 |
3.87 |
1740 |
| LTV-36211-0500 |
3 |
50.3 |
30.9 |
.0114 |
10.4 |
4.45 |
1670 |
| LTV-36211-0640 |
3 |
64.2 |
40.4 |
.0159 |
8.79 |
5.03 |
1560 |
| LTV-36211-0860 |
3 |
85.5 |
54.5 |
.0225 |
7.39 |
5.81 |
1490 |
| LTV-36211-0121 |
3 |
166 |
75.4 |
.0325 |
6.14 |
6.78 |
1420 |
| LTV-36211-0151 |
3 |
152 |
101 |
.0460 |
5.16 |
7.75 |
1350 |
| LTV-36211-0191 |
3 |
192 |
130 |
.0643 |
4.37 |
8.72 |
1240 |
| LTV-36211-0251 |
3 |
247 |
171 |
.0907 |
3.68 |
9.88 |
1160 |
| LTV-36211-0321 |
3 |
320 |
227 |
.129 |
3.08 |
11.2 |
1080 |
| LTV-36211-0401 |
3 |
401 |
290 |
.181 |
2.61 |
12.6 |
988 |
| LTV-36211-0521 |
3 |
520 |
386 |
.257 |
2.19 |
14.3 |
926 |
| LTV-36211-0651 |
3 |
654 |
495 |
.360 |
1.84 |
16.1 |
838 |
| LTV-36211-0841 |
3 |
839 |
645 |
.513 |
1.55 |
18.2 |
776 |
| LTV-36211-0102 |
3 |
1030 |
810 |
.708 |
1.32 |
20.1 |
706 |
| LTV-36211-0132 |
3 |
1320 |
1060 |
1.02 |
1.10 |
22.9 |
641 |
| LTV-36211-0162 |
3 |
1630 |
1330 |
1.40 |
.936 |
25.4 |
583 |
LTV Switchmode Inductors, Toroid, Full Coil Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-45210-0910 |
3 |
91.3 |
46.5 |
.0133 |
12.2 |
5.16 |
3460 |
| LTV-45210-0141 |
3 |
139 |
70.9 |
.0205 |
9.85 |
6.38 |
3440 |
| LTV-45210-0231 |
3 |
230 |
116 |
.0323 |
7.83 |
8.20 |
3560 |
| LTV-45210-0381 |
3 |
376 |
188 |
.0528 |
6.13 |
10.5 |
3530 |
| LTV-45210-0631 |
3 |
626 |
306 |
.0827 |
4.90 |
13.5 |
3670 |
| LTV-45210-0112 |
3 |
1080 |
518 |
.136 |
3.83 |
17.8 |
3800 |
| LTV-45210-0182 |
3 |
1800 |
854 |
.217 |
3.03 |
22.9 |
3920 |
| LTV-45210-0312 |
3 |
3070 |
1420 |
.352 |
2.37 |
29.9 |
3990 |
| LTV-45210-0532 |
3 |
5300 |
2430 |
.585 |
1.84 |
39.3 |
4110 |
| LTV-45210-0882 |
3 |
8810 |
4030 |
.946 |
1.45 |
50.7 |
4240 |
LTV Switchmode Inductors, Toroid, Single Layer Vertical
| Precision Model Number |
Figure
Number |
Inductance
[uHy +/- 12%] |
Inductance at
Rated Current |
DC Resistance
[Ohms Max] |
Rated Current
[Amps] |
Bias Factor |
Energy Storage
[uJoules] |
| LTV-45211-0660 |
3 |
66.4 |
35.7 |
.0116 |
13.1 |
4.40 |
3060 |
| LTV-45211-0910 |
3 |
91.3 |
49.5 |
.0168 |
10.9 |
5.16 |
2940 |
| LTV-45211-0121 |
3 |
120 |
66.6 |
.0237 |
9.16 |
5.92 |
2800 |
| LTV-45211-0151 |
3 |
153 |
87.2 |
.0330 |
7.75 |
6.68 |
2620 |
| LTV-45211-0201 |
3 |
198 |
117 |
.0466 |
6.53 |
7.59 |
2490 |
| LTV-45211-0261 |
3 |
257 |
155 |
.0660 |
5.48 |
8.65 |
2330 |
| LTV-45211-0321 |
3 |
324 |
203 |
.0911 |
4.64 |
9.72 |
2190 |
| LTV-45211-0421 |
3 |
421 |
269 |
.131 |
3.89 |
11.1 |
2040 |
| LTV-45211-0531 |
3 |
531 |
349 |
.185 |
3.28 |
12.4 |
1880 |
| LTV-45211-0671 |
3 |
669 |
450 |
.259 |
2.77 |
14.0 |
1730 |
| LTV-45211-0841 |
3 |
838 |
578 |
.362 |
2.34 |
15.6 |
1580 |
| LTV-45211-0112 |
3 |
1060 |
749 |
.511 |
1.97 |
17.6 |
1450 |
| LTV-45211-0142 |
3 |
1360 |
990 |
.725 |
1.65 |
19.9 |
1350 |
| LTV-45211-0172 |
3 |
1660 |
1240 |
1.00 |
1.41 |
22.0 |
1230 |
| LTV-45211-0212 |
3 |
2100 |
1600 |
1.43 |
1.18 |
24.7 |
1110 |
| LTV-45211-0262 |
3 |
2620 |
2040 |
1.97 |
1.00 |
27.6 |
1020 |
|
