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« Back PDF (Print) 0.440 in. / 11.20 mm OD Toroid

MS - 044 125 - 2

Physical Dimensions
OD Bare Core Nominal 11.18 mm 0.440 in
Coated Core (max) 11.89 mm 0.468 in
ID Bare Core Nominal 6.35 mm 0.250 in
Coated Core (min) 5.89 mm 0.232 in
Ht Bare Core Nominal 3.96 mm 0.156 in
Coated Core (max) 4.72 mm 0.186 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 0.0906 cm2
Le Effective Magnetic Path Length 2.69 cm 
Ve Effective Core Volume 0.244 cm3
WA Minimum Effective Window Area 0.273 cm2
SA Surface Area 5.1 cm2
MLT Mean Length Per Turn 1.84 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 MS-044014-2 MP-044014-2 FS-044014-2 HF-044014-2 OP-044014-2
26μ 11 MS-044026-2 SH-044026-2 MP-044026-2 FS-044026-2 HF-044026-2 OP-044026-2
40μ 17 MS-044040-2 FS-044040-2 OP-044040-2
60μ 26 MS-044060-2 SH-044060-2 MP-044060-2 FS-044060-2 HF-044060-2 OP-044060-2
75μ 32 MS-044075-2 FS-044075-2 OP-044075-2
90μ 38 MS-044090-2 FS-044090-2 OP-044090-2
125μ 53 MS-044125-2 SH-044125-2 MP-044125-2 HF-044125-2 OP-044125-2
147μ 63 MS-044147-2 MP-044147-2 HF-044147-2
160μ 68 MS-044160-2 MP-044160-2 HF-044160-2
173μ 74 MP-044173-2
205μ 88 MP-044205-2
Approx Unit Weight: 1.4 g 1.4 g 1.8 g 1.7 g 1.7 g 1.6 g
Test Conditions
Winding N=60, #30 AWG
Frequency 10 kHz
Voltage 0.024 V
AL Tolerance ±8% (±12% Super-MSS)
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 9,000 Pcs/Box
Winding Table
Wire Size AWG 18 20 22 24 26 28 30 32 34 36 38
mm 1.000 0.800 0.630 0.500 0.400 0.315 0.250 0.200 0.160 0.125 0.100
Single
Layer
Turns 12 16 20 26 33 42 52 66 83 103 129
Rdc(Ω) 4.6 m 9.8 m 19.5 m 40.2 m 81.2 m 164.4 m 323.6 m 653.3 m 1.3 2.6 5.1
Full
Winding
Turns 13 20 30 47 73 113 174 270 417 646 999
Rdc(Ω) 5.0 m 12.2 m 29.2 m 72.7 m 179.6 m 442.2 m 1.1 2.7 6.6 16.2 39.8