Engineering Center SZL and LEPCOS
— General representative of Epcos AG by ferrite in the CIS
— Official distributor and general representative for ferrites of TDK Electronics Europe Gmbh in the CIS
— Authorized distributor of Magnetics in Russia, CIS and Baltic countries
— Exclusive distributor of USM in Russia and CIS countries
— Official Distributor Temex Ceramics in Russia and CIS
Example of designation in design documentation: SDMR 40 UY42 where: SDMR40 - ferrite’s brand UY - product’s configuration (ПК-configured core) 20 - product’s standard size
Geometric Dimensions of UY-configured cores
Standard Size
A, mm
Bmin, mm
C, mm
D, mm
E, mm
F, mm
G, mm
UY20
64±1
23.2
20±0.5
20±0.5
26.5+1
40.5+1
4±0.2
UY22A
105±1.5
61
22±0.3
22±0.3
26.7
44+1
UY22B
70-1+1.5
26
22±0.3
22±0.3
47+0.5
65+0.3
UY26
78-2+3
26
26±0.5
26±0.5
45.5+1
67-3+1
UYL26
78-2+3
26
26±0.5
26±0.5
59+1
79±0.5
UY30
96.5±2.4
40
27.6±1
27.6±1
40.5±0.6
65±0.6
UY34
100-2+4
32
34±0.8
34±0.5
53.5+1
80±0.6
UY42
121+3
36
42±1
42+1
55+1
89±0.5
Effective Parameters and Mass of UY-configured Cores
Standard Size
C1(mm-1)
Ae(mm²)
Le(mm)
Ve(mm³)
AL, nH +20%
Mass, g
UY20
0.724
290
210
61000
3750
280
UY22A
0.764
380
290
116903
3292
561
UY22B
0.795
380
302
123122
3162
600
UY26
0.579
530
306
177662
4338
852
UYL26
0.678
530
360
200542
3706
962
UY30
0.542
598
324
219354
4636
1052
UY34
0.41
907
370
361275
6125
1733
UY42
0.297
1385
416
624429
8448
2997
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