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ON Semi releases transistors for audio amplifier output

Posted: 27 Oct 2003 ?? ?Print Version ?Bookmark and Share

Keywords:on semiconductor? audio bipolar transistor? mjl4281a? mjl4302a? powerbase?

ON Semiconductor has introduced a family of audio bipolar transistors which the company claims have the highest voltages available in the industry. The MJL4281A (npn) and MJL4302A (pnp) audio-output transistors provide the maximum amplification of an input signal currently available from a single transistor.

Designed to suit audio applications including professional audio amplifiers, theater and stadium sound systems, and public address systems, the MJL4281A and MJL4302A are 15A, 230W PowerBase power transistors that feature a 350V collector-emitter sustained voltage.

The products deliver high bandwidth and high-gain linearity, and feature a safe operating area (SOA) that allows 1.2A collector current and 100V at 1s to enable high bandwidth and clean, low-distortion output. With uniform linearity from 100mA to 5A, the transistors deliver accurate reproduction of input signal. High gain (80 to 250) results in greater amplification of output signal. The amplifiers are offered in the TO-264 package.

Drivers to complement the high voltage output transistors have also been released. The MJE15034 and MJE15035 are available in TO-220 packages.

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