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« Back PDF (Print) 0.260 in. / 6.60 mm OD Toroid

MS - 026 125 - 8

Physical Dimensions
OD Bare Core Nominal 6.60 mm 0.260 in
Coated Core (max) 7.32 mm 0.288 in
ID Bare Core Nominal 2.67 mm 0.105 in
Coated Core (min) 2.21 mm 0.087 in
Ht Bare Core Nominal 4.78 mm 0.188 in
Coated Core (max) 5.54 mm 0.218 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 0.092 cm2
Le Effective Magnetic Path Length 1.36 cm 
Ve Effective Core Volume 0.125 cm3
WA Minimum Effective Window Area 0.0384 cm2
SA Surface Area 2.44 cm2
MLT Mean Length Per Turn 1.73 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 12 MS-026014-8 MP-026014-8 FS-026014-8 HF-026014-8 OP-026014-8
26μ 21 MS-026026-8 SH-026026-8 MP-026026-8 FS-026026-8 HF-026026-8 OP-026026-8
40μ 33 MS-026040-8 FS-026040-8 OP-026040-8
60μ 50 MS-026060-8 SH-026060-8 MP-026060-8 FS-026060-8 HF-026060-8 OP-026060-8
75μ 62 MS-026075-8 FS-026075-8 OP-026075-8
90μ 74 MS-026090-8 FS-026090-8 OP-026090-8
125μ 103 MS-026125-8 SH-026125-8 MP-026125-8 HF-026125-8 OP-026125-8
147μ 122 MS-026147-8 MP-026147-8 HF-026147-8
160μ 132 MS-026160-8 MP-026160-8 HF-026160-8
173μ 144 MP-026173-8
205μ 170 MP-026205-8
Approx Unit Weight: 0.72 g 0.70 g 0.93 g 0.85 g 0.86 g 0.83 g
Test Conditions
Winding N=35, #32 AWG
Frequency 10 kHz
Voltage 0.014 V
AL Tolerance ±8% (±12% Super-MSS)
Coating/Packaging Information
Coating Type Parylene N
Voltage Breakdown 500 Vrms
Unit 0.1 mA, 5 s
Package Quantity 14,400 Pcs/Box
Winding Table
Wire Size AWG 26 28 30 32 34 36 38 40 42 44 -
mm 0.400 0.315 0.250 0.200 0.160 0.125 0.100 0.080 0.063 0.050 -
Single
Layer
Turns 11 14 18 23 29 37 47 59 74 93 -
Rdc(Ω) 25.5 m 51.5 m 105.4 m 214.2 m 429.4 m 871.4 m 1.8 3.5 7.0 14.0 -
Full
Winding
Turns 10 16 25 38 59 91 141 218 337 522 -
Rdc(Ω) 23.1 m 58.9 m 146.4 m 353.8 m 873.7 m 2.1 5.3 13.0 31.9 78.6 -