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Output transistors designed for audio amplification

Posted: 30 Jan 2006 ?? ?Print Version ?Bookmark and Share

Keywords:NJL21193DG? NJL21194DG? NJL0302DG? NJL0281DG? NJL1302DG?

ThermalTrak output transistors

ON Semiconductor introduced a new family of ThermalTrak output transistors with internal bias control, designed for use in consumer audio applications and high-power professional sound systems.

The company explained that the ThermalTrak technology utilized in their audio output transistors eliminates warm-up time and enables quick and precise bias adjustment. Real-time temperature sensing allows designers to monitor operating temperatures and is said to improve sound quality and bias stability. ON Semi added that the devices eliminate the need for output drive compensation circuitry and manual bias adjustments.

The medium frequency NJL21193DG (PNP) and the NJL21194DG (NPN) are 250V devices that offer a 200W power rating and a 4MHz bandwidth. These products are designed for high-power professional audio applications, including professional sound reinforcement and large venue PA sound systems.

The previously released high frequency (30MHz) family of devices includes the 180W NJL0302DG (PNP) and NJL0281DG (NPN), the 200W NJL1302DG (PNP) and NJL3281DG (NPN), and the 250W NJL4302DG (PNP) and NJL4281DG (NPN). According to the company, these transistors are ideal for consumer audio amplifiers and professional audio applications that use either single or multiple paralleled output devices.

The ThermalTrak devices are offered in a standard size 5-lead, TO-264 package.

The NJL21193DG and NJL21194DG devices are priced at $1.60; the NJL0302DG and NJL0281DG (30MHz, 180W devices) at $1.30; and the NJL4302DG and NJL4281DG (30MHz, 250W devices) and NJL1302DG and NJL3281DG (30MHz, 200W devices) at $1.75, all in 10,000-unit quantities.




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Related Datasheets
Part Number Description Category
? NJL3281DG 200W NPN ThermalTrak Transistor Equipment, Test and Measurement
? NJL4281DG 250W NPN ThermalTrak Transistor Equipment, Test and Measurement
? NJL4302DG 250W PNP ThermalTrak Transistor Equipment, Test and Measurement
? NJL1302DG 200W PNP ThermalTrak Transistor Equipment, Test and Measurement
? NJL0302DG 180W PNP ThermalTrak Transistor Equipment, Test and Measurement
? NJL0281DG 180W NPN ThermalTrak Transistor Equipment, Test and Measurement

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