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MK Magnetics Part Numbering System

MK Magnetics Core Type Case Type Core Size Material Thickness Loop Type Customer Specific
S X X XXXX X X X - X

C-Core Part Number Example

SC1000M1, "S" = MK Magnetics, "C" = C-core, no "Case Type" call out means no case or epoxy coating, "1000" = part size, "M" = Nanocrystalline, "1" = .001" thick material, no "Loop Type" (BH loop) call out immediately after material thickness means standard loop, not ending with a "dash" & "Customer Specific" call out means it is a standard part number

SC1000M1F, Same as above, but with non-standard "Loop Type" letter indicator when needed, "F" = flat loop

SCX1000M1F, Same as above, but with "Case Type" letter indicator when needed, "X" = epoxy coated

SC1000M1F-A, Same as above but with non-standard "Customer Specific" letter indicator when needed, "A" = customer specific part number, this letter indexes for each customer ordering this same part with a special requirement

E-Core & T-Core Part Number Example

Same as C-core, but "Core Type" becomes an "E" for E-core and "T" for toroid

Core Type Indicator Description Core Dimensional Parameters
C = C-core D E F G
E = E-core D 2E F G
T = Toroid D ID OD  
P = Pie/Circular core D IR OR  
D = D-core D E OR  
B = Bar/Block D E L  

Core Material Type Indicators

A
Standard Grade, 3% grain-oriented silicon steel, .001”, .002”, .004”, .009” M3, .012” M5
B
Z-Type, High Flux Grade, 3% grain-oriented silicon steel, .002”, .004”, .007” M2, .009” & .011” Domain Refined-H Hi-B
C
Premium-Z-Type, Super Oriented High Flux Grade, 3% grain-oriented silicon steel, .004” only
D
Supermalloy, 80% Nickel, Molybdenum 5.0%-6.0%, Balance Iron, .0005”, .001”, .002”, .004”, thicker on special order
E
Permalloy-80, 80% Nickel, Molybdenum 4.0%-5.0%, Balance Iron, .0005”, .001”, .002”, .004”, thicker on special order
F
Square Permalloy-80, 80% Nickel, Molybdenum 4.0%-5.0%, Balance Iron, .0005”, .001”, .002”, .004”, thicker on special order
G
Square 50% Nickel, 50% Nickel, Balance Iron, .0005”, .001”, .002”, .004”, thicker on special order
H
Round 50% Nickel 4750 alloy, Transformer Grade, 50% Nickel, Balance Iron, .001”, .002”, .004”, thicker on special order
J
Supermendur®, 49% Cobalt, 49% Iron, 2% Vanadium, .002”, .004”, round, square loop
K
2V-Permendur, 49% Cobalt, Balance Iron, Special order
L
Amorphous Metglas® 2605SA1 .001”, standard square anneal, round loop available, Optifficient Low Loss Series
M&MB
Nanocrystalline: Prime "M" .0007" & .0005", Grade "MB" domestically produced Finemet FT3-W @ 5.6" width. Standard round loop anneal, square & transverse available
P
6.5% .004" non-oriented silicon steel
S
M19, 3% non-oriented silicon steel, .014”
T
M4, 3% grain-oriented silicon steel, .011”

Other specialized materials may be available. Please contact Engineering.

Thickness Indicator
.0004"-.0006" = 5
.0007"-.001" = 1
.002" = 2
.004" = 4
.007" = 7
.009" = 9
.011" = A
.012" = B
.014" = C
Special Hysteresis Loop Type Modifiers
F = Flat Loop Anneal, Metglas 2605SA1 only
R = Round Loop Anneal, std for nanocrystalline
S = Square Loop Anneal, std for Metglas 2605SA1
T = Transverse Loop Anneal, available for Nanocrystalline

Case Type Indicator For Cased Toroids

A
Machined nylon, silicone grease damped, unsealed
B
Glass filled injection molded nylon, silicone grease damped, unsealed
C
Phenolic case, customer specified damping, unsealed
D
Aluminum epoxy coated, silicone rubber damped, sealed
E
Anodized aluminum, silicone rubber damped, unsealed
F
Customer supplied case, customer specified damping
X
Epoxy fluidize coated
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