The 1N4148 is a standard silicon switching diode. It is one of the most popular and long-lived switching diodes because of its dependable specifications and low cost.The 1N4148 is useful in switching applications up to about 100 MHz with a reverse-recovery time of no more than 4 ns.The 1N4148 comes in a DO-35 glass package for thru-hole mounting. This is useful forbreadboarding of circuits.A surface mount device, 1N4148WS, is available in a plastic SOD package
