SMD Code`s SMD CODES-2008 sample free download

File name SMD CODES-2008_sample.pdf

Eugene Turuta 2 - pins Acti ve Activ 3 - pins SMD components marking mar king codes databook SOT - 89 Introduction SMD-codes for semiconductor components in 2-pins cases SOT - 223 SMD-codes for semiconductor components in 3-pins cases SMD-codes for semiconductor components in SOT-89 cases SMD-codes for semiconductor components in SOT-223 cases BGA...LPP SMD-codes for semiconductor components in BGA and LPP cases SMD-codes for semiconductor components in 4-pins cases SMD-codes for semiconductor components in 5-pins cases SMD-codes for semiconductor components in 6 and more pins cases 4 - pins Conventional cases drawings. Cases pin assignments. Pinouts SMD-codes marking style 5 - pins Sample schematics diagrams Logos, contact and web-adresses of the manufacturers 6... - pins Chisinau, 2008 edition Introduction Surface mount devices (SMDs) are used in a growing number of commercial and industrial products. SMDs have improved performance over through-hole components due to their smaller size, shorter internal leads, and smaller board layouts. These factors reduce the circuit's parasitic inductance and capacitance. SMDs can also be more cost effective than traditional through-hole components due to the smaller board size, fewer board layers, and fewer holes. Today more than 50% of active semiconductor components are surface-mounted. At the same time, SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Therefore, a somewhat arbitrary coding system has grown up, where the device package carries a simple one, two or more character or graphic ID code. Thus it is necessary to take into account that the colour and (or) placing of alphanumeric or graphic symbols are also important. Identifying the manufacturers type number of an SMD device from the package code can be a difficult task. Unfortunately, each device code is not necessarily unique. It is possible for various manufacturers to place different devices in the same case with the same SMD-code. For example, with a 6H SMD-code in a SOT-23 case might be either a npn-transistor BC818 (CDIL) or a capacitance- diode FMMV2104 (Zetex) or a n-channel JFET transistor MMBF5486 (Motorla) or a pnp-digital transistor MUN2131 (Motorola) or a pnp-digital transistor UN2117 (Matsushita) or a CMOS-integrated circuit- voltage detector with reset output R3131N36EA (Ricoh). Even the same manufacturer may use the same