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« Back PDF (Print) 1.840 in. / 46.70 mm OD Toroid

MS - 184 125 - 2

Physical Dimensions
OD Bare Core Nominal 46.74 mm 1.840 in
Coated Core (max) 47.63 mm 1.875 in
ID Bare Core Nominal 24.13 mm 0.950 in
Coated Core (min) 23.32 mm 0.918 in
Ht Bare Core Nominal 18.03 mm 0.710 in
Coated Core (max) 18.92 mm 0.745 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 1.99 cm2
Le Effective Magnetic Path Length 10.7 cm 
Ve Effective Core Volume 21.4 cm3
WA Minimum Effective Window Area 4.27 cm2
SA Surface Area 81.7 cm2
MLT Mean Length Per Turn 7.38 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 32 MS-184014-2 MP-184014-2 FS-184014-2 HF-184014-2 OP-184014-2
26μ 59 MS-184026-2 SH-184026-2 MP-184026-2 FS-184026-2 HF-184026-2 OP-184026-2
40μ 90 MS-184040-2 FS-184040-2 OP-184040-2
60μ 135 MS-184060-2 SH-184060-2 MP-184060-2 FS-184060-2 HF-184060-2 OP-184060-2
75μ 169 MS-184075-2 FS-184075-2 OP-184075-2
90μ 202 MS-184090-2 FS-184090-2 OP-184090-2
125μ 281 MS-184125-2 SH-184125-2 MP-184125-2 HF-184125-2 OP-184125-2
147μ 330 MS-184147-2 MP-184147-2 HF-184147-2
160μ 360 MS-184160-2 MP-184160-2 HF-184160-2
173μ 390 MP-184173-2
205μ 462 MP-184205-2
Approx Unit Weight: 124 g 120 g 159 g 146 g 147 g 142 g
Test Conditions
Winding N=70, #20 AWG
Frequency 10 kHz
Voltage 0.62 V
AL Tolerance ±8%
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 100 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 17 22 28 35 45 56 70 88 111 138 173
Rdc(Ω) 2.6 m 5.3 m 10.7 m 21.4 m 43.7 m 86.5 m 171.9 m 343.7 m 689.5 m 1.4 2.7
Full
Winding
Turns 22 35 54 83 128 199 307 476 736 1,139 1,764
Rdc(Ω) 3.3 m 8.4 m 20.7 m 50.7 m 124.3 m 307.3 m 753.9 m 1.9 4.6 11.3 27.7