The first working device to be built was a point-contact transistor invented in 1947 by American physicists John Bardeen and Walter Brattain while working under William Shockley at Bell Labs. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.Īustro-Hungarian physicist Julius Edgar Lilienfeld proposed the concept of a field-effect transistor in 1926, but it was not possible to actually construct a working device at that time. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit. Transistors are one of the basic building blocks of modern electronics. ![]() The gate is separated from the body by an insulating layer (pink).Ī transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. However, we are responsible for any damage.Metal-oxide-semiconductor field-effect transistor (MOSFET), showing gate (G), body (B), source (S) and drain (D) terminals. My item was damaged in shipping? Our parts are carefully packaged to prevent damage in shipping. Delivery estimates are in business days and do not include weekends and holidays. If your item has still not arrived within this time, then email us. My package has still not arrived ? Make sure you have read the shipping details to determine expected delivery time frame. Duty and brokerage charges? We are not responsible for any duty, tax or brokerage charged by your country. ![]() Do you offer express shipping? NO, we only offer Airpost Service Shipping method. Do you charge any additional tax? No additional taxes or fees are charged for international buyers. When all of the items you are bidding on have ended, e-mail us and we will send you a combined invoice. FAQ'S: How do I get an invoice with combined shipping for multiple items? You can use the Ebay checkout for each item, bid or use Buy It Now. SHIPPING TIME(weekends/holidays excluded) Country Name Shipping Time Country Name Shipping Time USA/Canada 7-12d Spanish/Portugue 7-12d East/South Asia 7-12d France/West Asia 7-12d United Kingdom 7-12d Italy 7-12d Australia/New Zealand 7-12d West Asia/Middle East 7-12d Most Country of West/North Europe 7-12d South America and Africa 7-12d East /Middle Europe/Russia 7-12d Remark:1,The actual shipping time is determined to local custom and post service 2,China mainland and Hongkong will not be send to. INT'L AIR POSTAL SHIPPING SERVICES: Air Shipping Fees + Packaging&Materials + Handling fees = Inport&export custom fees and TAX is not included. When you buy multiple items that close on the same day, your shipping cost will be combined with discount. SHIPPING&HANDLING : Most items are shipped by postal airmail service within the next 24 hours after received payment. ![]() We will not ship items until payment is received / cleared. Generally we would like to receive payment within 48 hours if paying by PayPal. For purchasing multiple items, Please email us for a combined invoice. PAYMENT: We accept payment through PayPal. ![]() We value our customers so that if you have a problem ,PLEASE FEEL FREE and DON'T HESITATE TO GIVE US A RING OR CONTACT US BY EMAIL IMMEDIATEDLY, we are always there to offer help. You are bidding 2 PCS 2 Motorola MRF422 Line NPN Silicon RF Power Transistor High Quality WARRANTY: ITEM comes with 60 days warranty Verify model compatibility prior to bidding If the product received is not as DESCRIBED, a replacement will be issued FEEDBACK: We WARMLY appreciate your positive feedback and our system will leave positive feedback for you after complete transaction. East/South Asia 7-12d France/West Asia 7-12d. Australia/New Zealand 7-12d West Asia/Middle East 7-12d. Item: 332294090195 2 Motorola MRF422 Line NPN Silicon RF Power Transistor.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |