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

MS - 027 125 - 8

Physical Dimensions
OD Bare Core Nominal 6.60 mm 0.260 in
Coated Core (max) 7.24 mm 0.285 in
ID Bare Core Nominal 2.67 mm 0.105 in
Coated Core (min) 2.29 mm 0.090 in
Ht Bare Core Nominal 2.54 mm 0.100 in
Coated Core (max) 3.18 mm 0.125 in
Magnetic Dimensions
Ae Effective Magnetic Cross Section 0.0467 cm2
Le Effective Magnetic Path Length 1.36 cm 
Ve Effective Core Volume 0.064 cm3
WA Minimum Effective Window Area 0.041 cm2
SA Surface Area 1.83 cm2
MLT Mean Length Per Turn 1.25 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 6.05 MS-027014-8 MP-027014-8 FS-027014-8 HF-027014-8 OP-027014-8
26μ 11 MS-027026-8 SH-027026-8 MP-027026-8 FS-027026-8 HF-027026-8 OP-027026-8
40μ 17 MS-027040-8 FS-027040-8 OP-027040-8
60μ 26 MS-027060-8 SH-027060-8 MP-027060-8 FS-027060-8 HF-027060-8 OP-027060-8
75μ 32 MS-027075-8 FS-027075-8 OP-027075-8
90μ 39 MS-027090-8 FS-027090-8 OP-027090-8
125μ 54 MS-027125-8 SH-027125-8 MP-027125-8 HF-027125-8 OP-027125-8
147μ 64 MS-027147-8 MP-027147-8 HF-027147-8
160μ 69 MS-027160-8 MP-027160-8 HF-027160-8
173μ 75 MP-027173-8
205μ 89 MP-027205-8
Approx Unit Weight: 0.37 g 0.36 g 0.48 g 0.44 g 0.44 g 0.42 g
Test Conditions
Winding N=35, #32 AWG
Frequency 10 kHz
Voltage 0.007 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 21,600 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 19 24 30 38 49 61 77 96 -
Rdc(Ω) 18.3 m 37.1 m 80.1 m 160.9 m 319.9 m 644.5 m 1.3 2.6 5.3 10.4 -
Full
Winding
Turns 11 17 26 41 63 98 151 234 362 560 -
Rdc(Ω) 18.3 m 45.1 m 109.6 m 274.9 m 671.8 m 1.7 4.1 10.0 24.7 60.8 -