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« Back PDF (Print) 0.800 in. / 20.30 mm OD Toroid

MS - 080 125 - 2

Physical Dimensions
OD Bare Core Nominal 20.32 mm 0.800 in
Coated Core (max) 21.08 mm 0.830 in
ID Bare Core Nominal 12.70 mm 0.500 in
Coated Core (min) 12.07 mm 0.475 in
Ht Bare Core Nominal 6.35 mm 0.250 in
Coated Core (max) 7.11 mm 0.280 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 0.226 cm2
Le Effective Magnetic Path Length 5.09 cm 
Ve Effective Core Volume 1.15 cm3
WA Minimum Effective Window Area 1.14 cm2
SA Surface Area 15.5 cm2
MLT Mean Length Per Turn 2.93 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 7.8 MS-080014-2 MP-080014-2 FS-080014-2 HF-080014-2 OP-080014-2
26μ 14 MS-080026-2 SH-080026-2 MP-080026-2 FS-080026-2 HF-080026-2 OP-080026-2
40μ 21 MS-080040-2 FS-080040-2 OP-080040-2
60μ 32 MS-080060-2 SH-080060-2 MP-080060-2 FS-080060-2 HF-080060-2 OP-080060-2
75μ 41 MS-080075-2 FS-080075-2 OP-080075-2
90μ 49 MS-080090-2 FS-080090-2 OP-080090-2
125μ 68 MS-080125-2 SH-080125-2 MP-080125-2 HF-080125-2 OP-080125-2
147μ 81 MS-080147-2 MP-080147-2 HF-080147-2
160μ 87 MS-080160-2 MP-080160-2 HF-080160-2
173μ 96 MP-080173-2
205μ 113 MP-080205-2
Approx Unit Weight: 6.6 g 6.4 g 8.6 g 7.8 g 7.9 g 7.6 g
Test Conditions
Winding N=90, #28 AWG
Frequency 10 kHz
Voltage 0.090 V
AL Tolerance ±8%
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 1,800 Pcs/Box
Winding Table
Wire Size AWG 10 12 14 16 18 20 22 24 26 28 30
mm 2.500 2.000 1.600 1.250 1.000 0.800 0.630 0.500 0.400 0.315 0.250
Single
Layer
Turns 10 13 17 22 28 35 44 56 70 88 110
Rdc(Ω) 1.0 m 2.0 m 4.1 m 8.5 m 17.1 m 34.1 m 68.1 m 137.9 m 274.2 m 548.2 m 1.1
Full
Winding
Turns 9 14 22 34 53 82 127 197 305 472 731
Rdc(Ω) 0.9 m 2.1 m 5.3 m 13.1 m 32.4 m 79.8 m 196.7 m 485.2 m 1.2 2.9 7.2