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« Back PDF (Print) 6.500 in. / 165.00 mm OD Toroid

MS - 650 125 - 2

Physical Dimensions
OD Bare Core Nominal 165.10 mm 6.500 in
Coated Core (max) 166.37 mm 6.550 in
ID Bare Core Nominal 102.40 mm 4.031 in
Coated Core (min) 101.13 mm 3.981 in
Ht Bare Core Nominal 31.75 mm 1.250 in
Coated Core (max) 33.02 mm 1.300 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 9.87 cm2
Le Effective Magnetic Path Length 41.2 cm 
Ve Effective Core Volume 415 cm3
WA Minimum Effective Window Area 80.3 cm2
SA Surface Area 838 cm2
MLT Mean Length Per Turn 18.2 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 42 MS-650014-2 FS-650014-2 OP-650014-2
26μ 78 MS-650026-2 FS-650026-2 OP-650026-2
40μ 120 MS-650040-2
60μ 181 MS-650060-2 FS-650060-2 OP-650060-2
Approx Unit Weight: 2,399 g 2,319 g 3,092 g 2,822 g 2,851 g 2,756 g
Test Conditions
Winding N=100, #22 AWG
Frequency 10 kHz
Voltage 4.4 V
AL Tolerance ±8%
Coating/Packaging Information
Coating Type Blue Epoxy
Voltage Breakdown 1000 Vrms
Unit 0.1 mA, 5 s
Package Quantity 4 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 83 104 130 162 203 253 315 393 489 609 758
Rdc(Ω) 31.0 m 61.8 m 122.9 m 243.7 m 485.6 m 962.5 m 1.9 3.8 7.5 14.8 29.3
Full
Winding
Turns 420 651 1,007 1,559 2,413 3,734 5,780 8,946 13,846 21,429 33,167
Rdc(Ω) 157.0 m 387.1 m 952.3 m 2.3 5.8 14.2 35.0 86.1 211.9 521.5 1.3 k