Parts 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”
- B
- Z-Type, High Flux Grade, 3% grain-oriented silicon steel, .002”, .004”, .007” M2, .009” (H0) & .011” (H1) Domain Refined-H Hi-B
- C
- Premium-Z-Type, Super Oriented High Flux Grade, 3% grain-oriented silicon steel, .004”
- 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 only
- L
- Amorphous Metglas® 2605SA1 .001”, standard square anneal, round loop available, Optifficient Low Loss Series
- M&M2
- Nanocrystalline: Prime “M” .0007″ & .0005″, Lower cost .0007″ commercial grade “M2”, Standard round loop anneal, square & transverse available. The Hitachi FT3-W, type MB is indefinitely discontinued by the manufacturer, use type M1
- 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
