3M™ Flux Field Directional Material (FFDM) EM25TP

Product Construction/ Materials Description

Note: The following technical information and data should be considered representative or typical only and should not be used for

specification purposes.

*XXX = custom magnetic layer thickness options, Azz = optional Adhesive layer thickness micron (um) A= Adhesive,

Czz= optional Cover film thickness (um), C= Cover film; Adhesive layer thickness can vary based on application need.

Heat Activated Films (HAF) can also be options. L= Layers

** In an earlier version of the product, the numbering was also stated as EM25TP-004 = 35um magnetic layer. For 2019

new project the EM25TP will now use 4 digits to clarify thickness in microns or mm.

Application Ideas

3M FFDM EM25TP has potential to be used for:

•

Shield DC and low frequency magnetic field

•

Wireless power system power transfer efficiency improvement

•

EMI Absorber

•

Potential devices include mobile phone, computers, tablets, measurement and sensors.

•

Protect magnetic flux sensitive device such as a hall sensor and a flux gate from external low frequency

magnetic fields

•

Assembly of magnet coil for Wireless Charging System

•

Electronic equipment protection for automobile applications

As an initial design, it is suggested to test the 3M™ Flux Field Directional Materials at the greatest thickness allowed

(1x, 2x, 3x layers, etc.), largest XY dimension, in multiple locations or use multiple parts to determine a potential

maximum performance level associated with the material and the end use assembly. Once a baseline level of

performance is established, the 3M FFDM material thickness, XY shape, location, etc. can be reduced or changed to

determine the minimum material needed to meet a specification.

3M™ Flux Field Directional Material EM25TP

Structure

Type

Thickness

Cover Film Type

Black Colored PET (C is optional)

10µm

Magnetic Type

Soft Magnetic Composite

Options below (L= Layers)

Adhesive Type

Acrylic Adhesive (ADH optional)

10 – 30 µm

Magnetic Layer Thickness

(excluding protective film)

Tolerance: +/-10%

EM25TP-0025

EM25TP-0035 ( See Note**)

EM25TP-0050

EM25TP-0150

EM25TP-0250

EM25TP-XXX-Azz-Czz*

EM25TP-0035-A10-C10

EM25TP-0050-A10-C10

EM25TP-0100-A10-C10

L = 0.025 mm

L= 0.035 mm

L= 0.050 mm magnetic layer

L= 0.150 mm magnetic layer

L= 0.250 mm magnetic layer

L = -XXX-Azz-Czz

L=0.035mm magnetic+10um A+10um C

L=0.050mm magnetic+ 10um A+10um C

L=0.100mm magnetic+ 10um A+10um C

Total Thickness

Cover Film (Optional) +

Magnetic Layer +

Adhesive Layer (Optional)