![]() ![]() ![]() If the labelling is partially readable: european parts whose designation starts with "A" are always germanium, "O" is so old that is is LIKELY germanium, "B" is silicon. So, anything plastic molded will be silicon.įor power diodes, the same style of metal cases have been used for both Si and Ge devices. Catalog Introduction What is the 1N4007 Diode 1N4007 Diode Pinout 2.1 1N4007 Diode Configuration 2. Germanium semiconductors in molded plastic cases are an ABSOLUTE exception (only one I am aware of is the AF279 HF transistor), since most germanium parts were made in processes that require the part to be kept in a clean, hermetically sealed case (which plastic molding does not reliably provide). This old case style has been used for silicon parts too, but is VERY uncommon for them. Catalog Introduction What is the 1N4007 Diode 1N4007 Diode Pinout 2.1 1N4007 Diode Configuration 2.2 Revere Recovery Time 1N4007 Diode Features and Specifications Applications of 1N4007 Diode 1N4007 Diode Replacement and Equivalent 1N4007 Diode Example Circuit 6. Quantity Add to cart 1N4007 diode A diode is a device which allows current flow through only one direction. With clear case examples, the insides will appear mostly see-through hollow (instead of mostly filled with red/orange copper tampers, like you will see on a 1N4148 or similar), sometimes with a visible hair thin wire going towards the actual semiconductor element. Welcome to our store Home Catalog Contact View cart Check out Continue shopping Skip to product information Microscale 1N4007 diode 10.00 NGN Tax included. We see a color band representing the cathode’s side on the Diode’s body. Distinguishingly, the positive end of the Diode is the anode, while the negative side is the cathode. Not unlike a small reed switch), either left clear or painted black. Source: Wiki commons Pin Configuration for the 1n4002 Rectifier Diode The 1n4002 has two pins: the anode and cathode. It can withstand reverse voltage peak up to 50V.Real world germanium diodes (even recent production) almost always come in a larger glass body (diameter about equal to or even thicker than a 1N4007, slightly longer. The cathode is marked on the body of a diode by a band. In the schematic symbol, the tip of the triangle with the line on top of it is the cathode. However, you need to know functions of every pins before it can work better for you. The reverse current is 5uA which is negligible. 1N4007 rectifier diode has in total 2 pins. Hence we can use this in circuits that are designed for less than 1A. They should show approx 0.2V which is close to 0.3V. A little difficult to distinguish Schottky diodes though. The cathode side of the diode is marked by a polarity band. The diode terminals as well as the external surface are corrosion resistant. Small General purpose Diode 1N4007 is highly recommended for lab general purpose, however you may use from 1N4001 to 1N4007 diodes, all these diodes have rated current upto 1A, the only difference between them is of maximum voltage ratings, I personaly recommend 1N4007 diode, which is best among 1N400x series, due to its maximum voltage level. These general purpose diodes are ideal for low power applications. Silicon diodes should read approx 0.7V and Germanium diodes should read 0.3V. What is 1N4007 The 1N4007 is an axial lead glass-passivated standard recovery diode from ON Semiconductor. The cathode terminal can be identified by using a grey bar as shown in the picture above.įor 1N4001 Diode, the maximum current carrying capacity is 1A it withstand peaks up to 30A. You can easily distinguish Silicon and Germanium Diodes. That is the current should always flow from the Anode to cathode. ![]() Note: Complete Technical Details can be found at the 1N4001 datasheet given at the end of this page.ġN4148, 1N4733A, 1N5408, 1N5822, Zener Diodes.Ī diode is a device which allows current flow through only one direction. ![]()
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