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« Back PDF (Print) 1.300 in. / 33.00 mm OD Toroid

MS - 133 125 - 2

Physical Dimensions
OD Bare Core Nominal 33.02 mm 1.300 in
Coated Core (max) 33.83 mm 1.332 in
ID Bare Core Nominal 19.94 mm 0.785 in
Coated Core (min) 19.30 mm 0.760 in
Ht Bare Core Nominal 14.00 mm 0.551 in
Coated Core (max) 15.00 mm 0.591 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 0.874 cm2
Le Effective Magnetic Path Length 8.15 cm 
Ve Effective Core Volume 7.12 cm3
WA Minimum Effective Window Area 2.93 cm2
SA Surface Area 44.3 cm2
MLT Mean Length Per Turn 5.42 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 18.7 MS-133014-2 MP-133014-2 FS-133014-2 HF-133014-2 OP-133014-2
26μ 34.7 MS-133026-2 SH-133026-2 MP-133026-2 FS-133026-2 HF-133026-2 OP-133026-2
40μ 53.3 MS-133040-2 FS-133040-2 OP-133040-2
60μ 80 MS-133060-2 SH-133060-2 MP-133060-2 FS-133060-2 HF-133060-2 OP-133060-2
75μ 100 MS-133075-2 FS-133075-2 OP-133075-2
90μ 120 MS-133090-2 FS-133090-2 OP-133090-2
125μ 166.7 MS-133125-2 SH-133125-2 MP-133125-2 HF-133125-2 OP-133125-2
147μ 196 MS-133147-2 MP-133147-2 HF-133147-2
160μ 213 MS-133160-2 MP-133160-2 HF-133160-2
173μ 230.7 MP-133173-2
205μ 266.7 MP-133205-2
Approx Unit Weight: 41 g 40 g 53 g 48 g 49 g 47 g
Test Conditions
Winding N=70, #22 AWG
Frequency 10 kHz
Voltage 0.27 V
AL Tolerance ±8%
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 384 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 14 18 22 29 36 46 58 73 91 114 142
Rdc(Ω) 1.6 m 3.2 m 6.2 m 13.0 m 25.7 m 52.1 m 104.6 m 209.3 m 414.9 m 826.6 m 1.6
Full
Winding
Turns 15 24 37 57 88 136 211 326 504 780 1,208
Rdc(Ω) 1.7 m 4.3 m 10.4 m 25.5 m 62.7 m 154.2 m 380.4 m 934.6 m 2.3 5.7 13.9