mmarnold_catalog.pdf

SUPER-MSS TM - Sendust Powder Cores

MOLYPERMALLOY - MPP Powder Cores

FLUXSAN TM - Silicon Iron Alloy Powder Cores

HI-FLUX TM - Nickel Iron Powder Cores

OPTILLOY TM - Opimized Alloy Powder Cores

2012

Contents

Introducion

Material Overview…………………………………….……...….1

1.410 in./35.81 mm OD………………………..……………..51

Part Number Examples…………….……….……….………....2

1.570 in./39.88 mm OD………….…………….…………….52

Inductance Raing………………………….………….………....2

1.840 in./46.74 mm OD…………….…..……………….53-54

Engineering Kits…………………….……….………….………....2

2.000 in./50.8 mm OD……………………….……..………...55

Inductance Grading…………………………….…….………....2

2.250 in./57.15 mm OD…………………………………..56-57

Core Finish……………………….……….…….…………………....2

2.500 in./63.5 mm OD…………………..………….………..58

Magneic Characterisics

3.063 in./77.8 mm OD……………………….…………..59-60

Permeabilty vs. DC Magneizing Force…….…………3-5

4.000 in./101.6 mm OD……………..…………………..61-62

Permeabilty vs. AC Flux Density………….……..……….6-8

5.218 in./132.54 mm OD…………………..……..……63-64

Permeabilty vs. Frequency………………..……… ……9-11

6.000 in./152.4 mm OD……………..……………….….65-66

Permeability vs. Temperature………………………..12-14

E-Core Part Numbers

Core Losses………………………………..……………… …15-20

12.7 mm/0.500 in…………………..……..…………………….67

Curve Fit Formula…………………………...…………….21-22

19.3 mm/0.760 in……………..………………………………..68

Toroid Part Numbers

25.4 mm/1.000 in………………………...…………………...69

0.140 in./3.56 mm OD…………………………...…………..23

30.1 mm/1.185 in……………………...………………………..70

0.155 in./3.94 mm OD……………………………….……….24

34.5 mm/1.358 in…………………...………………… ………71

0.183 in./4.65 mm OD………………….…………… ……...25

40.9 mm/1.610 in……………………...………………………..72

0.250 in./6.35 mm OD……………………….……………….26

42.8 mm/1.685 in……………………………...…………..73-75

0.260 in./6.6 mm OD………….…………….…………..27-28

54.9 mm/2.161 in……………...……….………………...76-77

0.277 in./7.04 mm OD……………..…………..…… ………29

65.1 mm/2.563 in………………….………..………………...78

0.310 in./7.87 mm OD……………………..………………...30

72.4 mm/2.850 in………………………...…………………....79

0.380 in./9.65 mm OD……….………..………………..31-32

80.0 mm/3.150 in…………………………...………… ………80

0.400 in./10.16 mm OD………………………..….. ……….33

96.0 mm/3.780 in…………...….……………………………….81

0.440 in./11.18 mm OD………………………..…… ……...34

114.0 mm/4.488 in…………………………...……………….82

0.500 in./12.7 mm OD…………………………..…………….35

120.0 mm/4.724 in……………………...……….…………….83

0.655 in./16.64 mm OD…..………………………….……...36

Block Part Numbers

0.680 in./17.27 mm OD………………………..……………..37

47.5 mm to 80.0 mm………………………………...……….84

0.800 in./20.32 mm OD………………….………..………….38

Cross Reference

0.900 in./22.86 mm OD………………………..……………..39

Old Part Number to New Part Numbers…..…….85-86

0.928 in./23.57 mm OD………………..…..………………..40

Compeitor Part Numbers……………………….… ...87-94

1.060 in./26.92 mm OD…………………...…………….41-44

Design Tools

1.300 in./33.02 mm OD………….…...…………….….45-49

Inductor Sotware………………………………………….95-96

1.350 in./34.29 mm OD……………….….……..……...….50

Quick Reference……………………………….………………...97

Arnold Technologies (Shenzhen) Ltd., doing business as Micrometals Arnold Powder Cores is a division of Micrometals

Incorporated. The Micrometals Arnold Powder Core factory is located in Shenzhen, China with a sales office in Hong Kong.

Micrometals Inc. acquired the powder core division from Arnold Magnetic Technologies in January 2010. Micrometals Inc. is

headquartered in Anaheim, California.

Warranty

Parts are warranted to conform to the specifications in the latest issue of this catalog. Micrometals Arnold Powder Core liability

is limited to return of parts and repayment of price; or replacement of nonconforming parts. Notice of nonconformance must be

made within 30 days after delivery. Before using these products, buyer agrees to determine suitability of the product for their

intended use or application. Micrometals Arnold Powder Core shall not be liable for any other loss or damage, including but not

limited to incidental or consequential damages.

Material Introducion & Overview

Introduction to Powder Cores

Powder Cores are made from discrete particles of ferromagnetic powder. Prior to being formed into a core, the

particles are covered in a thin layer of electrically insulated material to ensure electrical isolation of each

particle. The particles are then compacted under high pressure to form the core geometry. The electrical

insulation between particles enables the materials to be used at high frequency. The insulation also forms a

distributed air gap throughout the core material, giving the material the ability to maintain inductance linearity

with a DC biasing field.

Micrometals Arnold Powder Cores manufactures 5 different classes of materials: Super‐MSS™ Sendust (MS),

Molypermalloy (MP), FluxSan™ Iron Silicon (FS), Hi‐Flux™(HF), and the newly introduced Optilloy™(OP). The

following table describes size and permeability ranges available for each material class, and also describes the

characteristics and applications for these material classes.

Super‐MSS™ Sendust

Iron, Silicon, Aluminum alloy powder material

Permeabilities: 14µ, 26µ, 40µ, 60µ, 75µ, 90µ and 125µ

Low Magnetostriction for audibly quiet applications

Cost effective low loss material

Operating frequencies to MHz

No thermal aging

Wide selection of toroids, E‐cores and blocks

MPP Molypermalloy

Nickel, Iron Molybdenum alloy powder material

Permeabilities: 14µ, 26µ, 60µ, 125µ, 147µ, 160µ, 173µ, 205µ and 250µ

Very low loss powder material

Operating frequencies ≤200kHz

No thermal aging

Wide selection of toroids up to 154mm

FluxSan™ Silicon Iron

6.5% Silicon, Iron alloy powder material

Permeabilities: 14µ, 26µ, 40µ, 60µ, 75µ and 90µ

High saturation characteristics

Low losses ≤200kHz

No thermal aging

Wide selection of toroids, E‐cores and blocks

Hi‐Flux™ Nickel Iron

50/50 Nickel, Iron alloy powder material

Permeabilities: 14µ, 26µ, 60µ, 125µ, 147µ and 160µ

High saturation characteristics

Moderate losses ≤200kHz

No thermal aging

Optilloy™ Optimized Alloy

Hybrid alloy powder material

Permeabilities: 14µ, 26µ, 40µ, 60µ, 75µ, 90µ and 125µ

Moderate losses ≤200kHz

No thermal aging

Toroids up to 154mm

MICROMEtALS Arnold Powder Cores • www.MicrometalsArnoldPowderCores.com

Part Number Examples, Finish, temperature Statement

Part Numbers

Micrometals Arnold Powder Core part numbers are

constructed as shown below.

Inductance Tolerance

The cores are manufactured to the A L values listed in

this catalog with a ±8% inductance tolerance with the

exception of small (0.14 to 0.44 inches) toroidal cores

with Super‐MSS™ material. Refer to catalog part page

for details.

Toroidal Core Geometry

MP ‐ 600 125 ‐ 2

Typical Part Number:

Material Type

OD in 100th inches

Reference Permeability

Finish

Inductance Grading

Binning and marking in 1% grades is possible upon

request.

Core Finishes

Standard toroidal cores are all furnished with an

isolation coating. Coating type and dielectric strength

vary with part sizes, details and test conditions are

offered on the part pages. Finished are tested for

dielectric strength with conductive foam pads pressed

against the two flat surfaces and around the OD/ID

corners of the core.

Epoxy coated parts are UL approved for Flame Class

UL94V‐0 per files #OCDT2.E350791, QMFZ2.E257126.

Part numbers are labeled on individual parts on toroid

sizes 0.40 in. (10.2mm) and larger. Toroid part sizes less

than 0.40 in (10.2mm) are coated with Parylene N.

Parylene C is available upon request but is not RoHS

compliant.

Engineering Kits

Engineering kits and evaluation samples are available;

please refer to Micrometals Arnold Powder Cores

website ( www.MicrometalsArnoldPowderCores.com )

for distributor or local sales contact for details.

Engineering Assistance

Micrometals Arnold will gladly extend engineering and

design assistance to aid in your core selection. Please

refer questions to Applications@Micrometals.com . In

addition Micrometals Arnold Powder Cores offers

Induction Design Software which can be downloaded at

no charge. Please refer to pages 95 to 96 for details.

Custom Shapes and Sizes

In addition to the items shown in this catalog,

Micrometals Arnold Powder Cores will gladly produce

custom shapes and sizes.

Packing Information

The standard box dimensions are 30.5 x 30.5 x 12.7cm

(12 x 12 x 5in.) Part quantity per box can be located on

part detail pages.

E‐Core Geometry

Typical Part Number: E FS ‐ 055 28 25 ‐ 090

Geometry

Material Type

"A" Dimension in XXXmm

"B" Dimension in XXmm

"C" Dimension in XXmm

Reference Permeability

Block Core Geometry

Typical Part Number: B MS ‐ 080 30 20 ‐060

Geometry

Material Type

"A" Dimension in XXXmm

"B" Dimension in XXmm

"C" Dimension in XXmm

Reference Permeability

Materials

Finish

MS = Super‐MSS™ Sendust

2 = Blue Epoxy

MP = MPP Molypermalloy

8 = Pa ryl ene N (Standard)

FS =

FluxSan™ Silicon Iron

8C = Pa ryl ene C

HF = Hi‐Flux™ Ni ckel Iron

OP = Optilloy™ Optimized Alloy

Inductance Rating

In this catalog the inductance ratings, also known as A L

values, are expressed in nanohenries (10 ‐9 Henries) per

turn (N) squared (nH/N 2 ).

To calculate the number of turns required for a desired

inductance (L) in nanohenries (nH) use the following

formula:

desired

(nH)

Required

turns

(nH/N

)

MICROMEtALS Arnold Powder Cores • www.MicrometalsArnoldPowderCores.com

Percent Iniial Permeability vs. DC Magneizing Force

120

110

100

Super-MSS TM - Sendust (MS)

Percent Inial Permeability (%μ o )

vs.

DC Magneizing Force

H = DC Magneizing Force

N = Number of Turns

I = DC Current (A)

Le = Eecive Path Length (cm)

H = DC Magneizing Force

N = Number of Turns

I = DC Current (A)

Le = Eecive Path Length (cm)

H -DC Magneizing Force (Oe)

120

110

100

Molypermalloy - MPP (MP)

Percent Inial Permeability (%μ o )

vs.

DC Magneizing Force

H = DC Magneizing Force

N = Number of Turns

I = DC Current (A)

Le = Eecive Path Length (cm)

H = DC Magneizing Force

N = Number of Turns

I = DC Current (A)

Le = Eecive Path Length (cm)

H -DC Magneizing Force (Oe)

MICROMEtALS Arnold Powder Cores • www.MicrometalsArnoldPowderCores.com

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