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We offer cores for transponder coils. They are suited for automotive electronics
applications such as immobilizer systems, keyless entry, passive entry
/ passive start (PEPS), and tire pressure monitoring systems (TPMS). |
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 Material
Aluminum oxide 96% , Ni-Zn Ferrite (our material H, K, or G). |
Specifications (Aluminum oxide 96% )
| Material |
Alumina
(Aluminum Oxide) |
| Product code number |
A-6 |
| Chemical analysis |
Al2O3 96% |
| Color |
White |
| Apparent specific gravity [Kg/m3] |
3.7x103 |
| Water absorption [%] |
＜0.01 |
| Safety service temperature [℃] |
1,400 |
| Flexural strength [MPa] |
＞320 |
| Compressive strength [MPa] |
＞1,070 |
Thermal expansion
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20～ 500℃ |
7.2x10-6 |
| 20～ 800℃ |
7.8x10-6 |
| 20～1000℃ |
8.1x10-6 |
| Thermal conductivity [W/(m・K)] |
20 |
| Dielectric strength [kV/mm] |
10 |
| Volume resistivity [ohm-cm] |
25℃ |
＞1014 |
| 300℃ |
＞1011 |
| 500℃ |
＞108 |
| Dielectric constant (1MHz) |
9.3 |
| Loss factor (1MHz) |
0.0001 |
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Specifications (Ni-Zn Ferrite (our material H, K, or G) )
| item |
unit |
Material Type |
| H |
K |
G |
Initial Permeability
µi (f=10kHz) |
- |
80 |
350 |
1000 |
Residual Flux
Density Br |
mT |
240 |
250 |
130 |
Coercive Force
Hc |
A/m |
215 |
80 |
40 |
Saturation Flux Density
Bm ( Hm[A/m] ) |
mT |
320
(6400) |
410
(2400) |
330
(2400) |
Relative Loss Factor
tan ð/µi |
×10-6 |
400
(1MHz) |
40
(100kHz) |
15
(100kHz) |
Curie Temperature
Tc |
℃ |
>200 |
>180 |
>160 |
Electrical Resistivity
p |
ohm-cm |
108 |
108 |
108 |
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Electrode material
Ag-Pd, or Mo/Mn |
Plating material
Sn, or Au. Concerning the film thickness of plating, your requirement is
considered. |
Dimension (The same with Aluminum oxide and Ferrite)
| Length (L) |
Width (W) |
Height (H) |
| within 11mm |
within 10mm |
within 5mm |
Our standard dimension is as below.
Length(L) = 11mm, Width(W) = 2mm, Height(H) = 2mm |
Particular mention
Concerning our transpondor coils made by our ferrite, it is available without
metalizing or plating. |
Typical use
Various kinds of electronic equipment. For example, antenna coil (Automobile
electronic components, Tire air pressure measuring system, Immobilizer,
etc.)
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Inquiry
Sales and Business Control Group
Phone +81-561-48-5012, FAX +81-561-48-5058
It is also available for WEB meeting, Skype, SNS(LINE, WeChat, WhatsAPP, Kakao Talk, etc.)
If you want to use it, could you please inform us of you with our phone,
FAX and E-mail( sales@phononmeiwa.co.jp ). We will contact you soon. |
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