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« Back PDF (Print) 2.000 in. / 50.80 mm OD Toroid

MS - 200 125 - 2

Physical Dimensions
OD Bare Core Nominal 50.80 mm 2.000 in
Coated Core (max) 51.69 mm 2.035 in
ID Bare Core Nominal 31.75 mm 1.250 in
Coated Core (min) 30.94 mm 1.218 in
Ht Bare Core Nominal 13.46 mm 0.530 in
Coated Core (max) 14.35 mm 0.565 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 1.25 cm2
Le Effective Magnetic Path Length 12.7 cm 
Ve Effective Core Volume 15.9 cm3
WA Minimum Effective Window Area 7.52 cm2
SA Surface Area 88.2 cm2
MLT Mean Length Per Turn 6.49 cm 
Permeability Part Numbers
Reference
Permeability
AL Value
(nH/N2)
MS
Sendust
SH
High Freq. Sendust
MPP
Molypermalloy
FluxSan
Silicon Iron
Hi-Flux
Nickle Iron
Optilloy
Optimized Alloy
14μ 17 MS-200014-2 MP-200014-2 FS-200014-2 HF-200014-2 OP-200014-2
26μ 32 MS-200026-2 SH-200026-2 MP-200026-2 FS-200026-2 HF-200026-2 OP-200026-2
40μ 49 MS-200040-2 FS-200040-2 OP-200040-2
60μ 73 MS-200060-2 SH-200060-2 MP-200060-2 FS-200060-2 HF-200060-2 OP-200060-2
75μ 91 MS-200075-2 FS-200075-2 OP-200075-2
90μ 109 MS-200090-2 FS-200090-2 OP-200090-2
125μ 152 MS-200125-2 SH-200125-2 MP-200125-2 HF-200125-2 OP-200125-2
147μ 179 MS-200147-2 MP-200147-2 HF-200147-2
160μ 195 MS-200160-2 MP-200160-2 HF-200160-2
173μ 210 MP-200173-2
205μ 249 MP-200205-2
Approx Unit Weight: 92 g 89 g 118 g 108 g 109 g 106 g
Test Conditions
Winding N=70, #18 AWG
Frequency 10 kHz
Voltage 0.39 V
AL Tolerance ±8%
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 125 Pcs/Box
Winding Table
Wire Size AWG 8 10 12 14 16 18 20 22 24 26 28
mm 3.150 2.500 2.000 1.600 1.250 1.000 0.800 0.630 0.500 0.400 0.315
Single
Layer
Turns 23 30 38 48 60 75 94 118 148 184 230
Rdc(Ω) 3.1 m 6.4 m 12.8 m 25.8 m 51.2 m 101.9 m 203.0 m 405.4 m 808.6 m 1.6 3.2
Full
Winding
Turns 39 61 94 146 226 350 541 837 1,296 2,006 3,104
Rdc(Ω) 5.2 m 12.9 m 31.7 m 78.4 m 193.0 m 475.3 m 1.2 2.9 7.1 17.4 42.9