![]() This stage is called Saturation Region and the typical voltage allowed across the Collector-Emitter (VCE) or Base-Emitter (VBE) could be 200 and 900 mV respectively. When this transistor is fully biased then it can allow a maximum of 100mA to flow across the collector and emitter. ![]() To bias a transistor, we have to supply current to base pin, this current (IB) should be limited to 5mA. The maximum amount of current that could flow through the Collector pin is 100mA, hence we cannot connect loads that consume more than 100mA using this transistor. Operating Temperature Range -65 to +150 ☌īC557 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor.Its hFE ratings of this transistor range from 125 to 800 to make the transistor ideal by using like an amplifier within electronic circuits like audio signal amplification. BC557 transistor is a general-purpose transistor, used like an amplifier or a switch in electronic circuits.
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