MST series
An amorphous material based on cobalt AMAG 186 is used, which has a very linear flat hysteresis loop with a relatively low magnetic permeability. Therefore, it is often used for precision current transformers.
Typical permeability (material specified when ordering):
• AMAG 186A – 3300
• AMAG 186B – 2200
• AMAG 186C – 1400
Permeability depends little on the working amplitude of induction and frequency. The material has a negative temperature dependence of losses.
It is recommended for transformers of converters, in which a high magnetic permeability of the magnetic circuit and a high inductance of the primary winding are not desirable, the stability of this inductance is important.
Dimensions and main characteristics
MST series
Core name | Overall dimensions in the container [coated with paint] (without container) (D-d-H) (mm) |
Midline length Lm (mm) |
The effect. section Ac (mm2) |
Specific losses, W / kg, no more | Coeff. squareness, no more |
Relative magnetic permeability, not less (AMAG 186B) |
Container material |
---|---|---|---|---|---|---|---|
100 kHz 0,3 T |
1 kHz 80 A/m |
100 kHz ΔB = 1 T |
|||||
Nominal | Nominal | Max | Max | Min | |||
MST-10S-TH [MSTP-10S-TH] |
11,3 - 5,3 - 5,6 [11,0 - 5,5 - 5,5] (10,0 - 6,5 - 4,5) |
25,5 | 6,1 | 130 [140] |
0,1 [0,1] |
1 900 | Plastic [Coating with paint] |
MST-12S-TH [MSTP-12S-TH] |
14,0 - 6,6 - 6,3 [13,0 - 7,0 - 5,5] (12,0 - 8,0 - 4,5) |
31,4 | 7,0 | ||||
MST-15A-TH [MSTP-15A-TH] |
16,7 - 10,5 - 6,3 [16,0 - 11,0 - 5,5] (15,0 - 12,0 - 4,5) |
42,4 | 5,26 | ||||
MST-16A-TH [MSTP-16A-TH] |
17,8 - 8,3 - 8,1 [17,0 - 9,0 - 7,0] (16,0 - 10,0 - 6,0) |
40,8 | 14,04 | ||||
MST-18S-TH [MSTP-18S-TH] |
19,8 - 10,4 - 6,4 [19,0 - 11,0 - 5,5] (18,0 - 12,0 - 4,5) |
46,5 | 10,5 | ||||
MST-19A-TH [MSTP-19A-TH] |
21,6 - 11,0 - 8,2 [20,5 - 11,7 - 7,0] (19,5 - 12,7 - 6,0) |
50,6 | 15,5 | ||||
MST-20A-TH [MSTP-20A-TH] |
22,5 - 10,4 - 10,1 [21,0 - 11,5 - 9,0] (20,0 - 12,5 - 8,0) |
51,0 | 23,4 | ||||
MST-25A-TH [MSTP-25A-TH] |
27,7 - 17,3 - 12,9 [26,0 - 19,0 - 11,0] (25,0 - 20,0 - 10,0) |
70,7 | 19,5 | ||||
MST-25S-TH [MSTP-25S-TH] |
28,4 - 13,8 - 12,2 [26,0 - 17,0 - 11,0] (25,0 - 16,0 - 10,0) |
64,4 | 35,1 | ||||
MST-30S-TH [MSTP-30S-TH] |
32,7 - 17,8 - 12,4 [31,0 - 19,0 - 11,0] (30,0 - 20,0 - 10,0) |
78,5 | 37,5 | ||||
MST-32S-TH [MSTP-32S-TH] |
34,8 - 17,4 - 12,8 [33,0 - 19,0 - 11,0] (32,0 - 20,0 - 10,0) |
81,6 | 45,0 | ||||
MST-40A-TH [MSTP-40A-TH] |
42,7 - 29,0 - 18,0 [41,0 - 31,0 - 16,0] (40,0 - 32,0 - 15,0) |
113,0 | 46,8 | ||||
MST-40S-TH [MSTP-40S-TH] |
40,7 - 23,4 - 15,3 [39,0 - 25,0 - 13,0] (38,0 - 26,0 - 12,0) |
100,5 | 56,16 | ||||
MST-45S-TH [MSTP-45S-TH] |
48,1 - 21,9 - 23,4 [46,0 - 26,0 - 21,0] (45,0 - 25,0 - 20,0) |
100,9 | 156,0 | ||||
MST-50S-TH | 53,8 - 36,2 - 23,9 (50,0 - 40,0 - 20,0) |
141,3 | 78,0 | ||||
MST-60S-TH | 64,0 - 41,0 - 24,5 (60,0 - 45,0 - 20,0) |
164,9 | 117,0 | ||||
MST-63A-TH | 67,3 - 46,5 - 28,6 (63,0 - 50,0 - 25,0) |
177,4 | 126,8 | ||||
MST-80A-TH | 83,4 - 59,6 - 28,6 (80,0 - 63,0 - 25,0) |
224,5 | 156,7 | ||||
MST-100S-TH | 104,2 - 75,8 - 24,7 (100,0 - 80,0 - 20,0) |
282,6 | 156,0 |
Note:
- 1) Operating temperature range in a plastic container from -60 ° C to + 120 ° C.
- 2) Same with paint coating see "Construction"
- 3) In the version with paint coating, the dimensions can be changed according to customer requirements
Application
- Precision current transformers
- Pulse transformers push-pull SMPS
- Pulse transformers forward SMPS
- Pulse transformers resonant SMPS
Additional parameters and characteristics
The main characteristics of the material used
- Material AMAG 186
- Amplitude of induction, Вm (25 °C) 0,9 T
- Curie temperature, Tc 430 °C
- Magnetostriction, less 0,05×10-6
- Typical magnetic permeability (10 kHz) – 3300; 2200; 1400
- Linear flat hysteresis loop, squareness factor (1kHz) no more than 0.1
Recording example
MST(P)-10S-TH, where:
- MS - MSTATOR;
- Т - application (transformers);
- P - paint coating;
- 10 - outer diameter, mm;
- S - sectional designation;
- TH - type of heat treatment (in a strong transverse magnetic field).