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« Back PDF (Print) 0.500 in. / 12.70 mm OD Toroid

MS - 050 125 - 2

Physical Dimensions
OD Bare Core Nominal 12.70 mm 0.500 in
Coated Core (max) 13.46 mm 0.530 in
ID Bare Core Nominal 7.62 mm 0.300 in
Coated Core (min) 6.99 mm 0.275 in
Ht Bare Core Nominal 4.75 mm 0.187 in
Coated Core (max) 5.51 mm 0.217 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 0.114 cm2
Le Effective Magnetic Path Length 3.12 cm 
Ve Effective Core Volume 0.356 cm3
WA Minimum Effective Window Area 0.383 cm2
SA Surface Area 6.67 cm2
MLT Mean Length Per Turn 2.10 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 6.4 MS-050014-2 MP-050014-2 FS-050014-2 HF-050014-2 OP-050014-2
26μ 12 MS-050026-2 SH-050026-2 MP-050026-2 FS-050026-2 HF-050026-2 OP-050026-2
40μ 18 MS-050040-2 FS-050040-2 OP-050040-2
60μ 27 MS-050060-2 SH-050060-2 MP-050060-2 FS-050060-2 HF-050060-2 OP-050060-2
75μ 34 MS-050075-2 FS-050075-2 OP-050075-2
90μ 40 MS-050090-2 FS-050090-2 OP-050090-2
125μ 56 MS-050125-2 SH-050125-2 MP-050125-2 HF-050125-2 OP-050125-2
147μ 67 MS-050147-2 MP-050147-2 HF-050147-2
160μ 72 MS-050160-2 MP-050160-2 HF-050160-2
173μ 79 MP-050173-2
205μ 93 MP-050205-2
Approx Unit Weight: 2.1 g 2.0 g 2.7 g 2.4 g 2.4 g 2.4 g
Test Conditions
Winding N=50, #28 AWG
Frequency 10 kHz
Voltage 0.025 V
AL Tolerance ±8%
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 5,400 Pcs/Box
Winding Table
Wire Size AWG 16 18 20 22 24 26 28 30 32 34 36
mm 1.250 1.000 0.800 0.630 0.500 0.400 0.315 0.250 0.200 0.160 0.125
Single
Layer
Turns 11 15 19 24 31 39 50 63 79 98 123
Rdc(Ω) 3.0 m 6.6 m 13.3 m 26.6 m 54.7 m 109.5 m 223.3 m 447.5 m 892.5 m 1.8 3.5
Full
Winding
Turns 12 18 28 43 66 102 158 245 380 587 909
Rdc(Ω) 3.3 m 7.9 m 19.5 m 47.7 m 116.6 m 286.5 m 705.7 m 1.7 4.3 10.5 26.0