We use the Polyethylene foamed sheet to protect the ferrite cores and bobbins, then use the air column, don't worry! 

We have many kinds of the ferrite cores and bobbin ,Please visit our eBay Store at elecmall to search the ferrite core you need.
This item is commonly used product,if you need other size or pins, please feel free to contact us!


Bobbin size: please check the 4th picture
ferrite core size(mm): (the 3rd picture)
   A:33.2±0.6
   B:24.3±0.3
   C:12.7±0.3
   D:9.5±0.5
   E:23.2min
   F:19.4±0.3
   I:4.8±0.3

Core set parameters:

C1:0.57mm^-1
Le:66.9mm
Ae:118.1mm^2
Ve:7909mm^3

AL=4100±25%  ( tested by HP4284A under 1KHz,0.3V, 25±3℃,the coil is Φ0.35 x 10Ts)

Material: PC40
PC40 Material Characteristics (All the values below are obtained by T25 test cores,the data may have some adjustments according to specific products):

Initial Permeability (μi): 2300±25% 
Saturation Flux Density (Bs): 500mT (25℃)  ,  380mT(100℃)
Remanence (Br): 130mT
Coercivity (Hc): 16A/m
Power loss (F=100KHz ,B=200mT) :600Kw/m^3 at 25℃,  400Kw/m^3 at 80℃,  410Kw/m^3 at 100℃
Curie Temperature (Tc): >215℃
Resistivity  : 6.5Ω·m
Density : 4.8Kg/m^3*10^3

Weight: 46g/set

2pcs =4 ferrite halves + 2 bobbin,



Payment:

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Refunds and Return:

We offer a warranty on all items that we sold. Item will be tested before ship,  if there are any issues, please feel free to contact us.this item comes with 30days warranty from the shipment date.

You must contact us before returning any products. All returns must be made within 30 days from this shipment date. Return must be in new condition.

The buyer need response for 2 ways shipping cost.

Please contact us before leaving negative feedback,thanks!

 

Shipping:

All orders are to be shipped within same day or next business day after payment is completed.

we will use China Post to send the goods with a tracking number.

If you don't get the goods for many days,please feel free to contact us,We will track the shipment and get back to you as soon as possible with a reply.