To-3 To3 Ceramic Transistor Insulators Mica 2n3055 Kd503 Ua7805 Ua7812, 10pcs

US $260

  • Sofia, Bulgaria
  • Jul 18th
TO-3 Ceramic Power Transistor Insulators mica NEW Suitable for ALL transistors with TO-3 package Thickness:  2mm  = 0.079 inch. Made in early 1980s. Material type: I'm not sure about the material type of these ceramic pads. My supplier and a few tests I personally made in 2012 suggested they should be Beryllium oxide (BeO). The factory which made them was known to use only BeO at the time they were produced. But a couple of buyers said they are Aluminum Oxide (AlO). The weight of one pad is approximately 5.5g. One of my buyers calculated that the density of these ceramic pads is about 3.5-3.7 g/cc, which is in between BeO and AlO. The information is controversial and I don't want to argue when I'm not 100% sure, so here are the facts that I know, please choose for yourself. The ceramic pads still do their job perfectly well by providing excellent electrical insulation and great heat conductivity. The price is for 10 pieces. Worldwide delivery: $5.80   SHIPMENT All item(s) will be shipped by registered priority airmail. Typical delivery times are: USA/Canada: 14...22 days***** This year there are severe delays to USA and Canada. Buyers from these countries are recommended to use the second a little bit more expensive shipping service if they need their items to arrive in less than 22 days. EUROPE (All countries): 8...14 days ALL OTHER destinations (North and South America, Asia, Africa, etc.): 12...25 days EXCEPTIONS: 1. ITALIAN customers, please be more patient. For unknown reasons deliveries to Italy usually take longer than to the rest of Europe, i.e. 12...16 days. 2. Good news for AUSTRALIAN customers, usually shipment to Australia is pretty fast, it takes no more than 8...12 days. If a buyer purchases several items I will combine the shipment to reduce shipment costs. PAYMENT In the past I used to accept a great variety of payment options but from the end of 2008 eBay does not permit any other payment options except the following two companies, which they own: Paypal and Propay. Currently I can accept only Paypal from these two. Whatever payment option you choose, please, don't forget to write the eBay item number(s) you are paying for. Here are all the payment options I accept, explained in detail, in the order I prefer them: 1. Skrill / Moneybookers. 2. Paypal. 3. Other. I may accept other options permitted by ebay. Please contact me if you want to pay with any other payment options.
Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...
Country/Region of Manufacture Bulgaria
MPN TO-3
Mounting Style Through-Hole
Configuration Insulated
Number of Pins 2
Brand Bulgarian
Maximum Operating Temperature 500 °C (1000 °F)
Country of Manufacture Bulgaria
Transistor Category Power Transistor
Package/Case TO
UPC Does Not Apply

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