UNR211800L Discrete Semiconductor Products

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The UNR211800L is a single pre-biased bipolar junction transistor. It is an ultra-low noise and low distortion device specifically developed to provide high linearity performance in low to medium power pre-amplifier applications. This device has a collector-emitter breakdown voltage of 250 volts and a maximum collector current of 1.0 amperes.

The UNR211800L features a reverse pre-biased input stage with internal clamp diodes. This reverse pre-biased input stage helps to minimize distortions and to improve the dynamic range of audio collectors. The use of a drift capacitor (DC) helps to reduce the thermal noise and further improves the linearity in the audio pre-amplifier application. The very low noise parameter (0.6nV/√Hz) makes this device an ideal choice for applications requiring very low noise and distortion levels.

The UNR211800L is well-suited for use in a wide variety of consumer and professional audio equipment, including musical instrument amplifiers, home stereo systems and sound systems. This device is also used in medical imaging systems and other sensitive medical equipment. Additionally, it is used in analog signal processing systems and in video camera monitoring systems.

The UNR211800L is designed for use as a pre-amplifier and current buffer in audio collectors. The forward pre-biased input stage allows for fast signal acquisition and its low collector-base capacitance ensures excellent linearity. The UNR211800L is also designed for operation at very low collector-emitter saturation voltages, thus providing for low distortion performance. The operating current of this device is also very temperature independent, allowing for constant performance over a wide range of temperature environments.

In addition to its low noise and low distortion properties, the UNR211800L also has excellent thermal performance. This device is constructed with a unique package design which ensures a maximum collector-emitter thermal resistance of 0.10 K/W. This is significantly lower than comparable transistors, allowing the UNR211800L to handle higher collector currents with excellent thermal stability.

In summary, the UNR211800L is an ideal choice for low to medium power pre-amplifier and current buffer applications. Its low noise, low distortion, and excellent thermal performance make it a viable solution for a wide range of audio, imaging and video applications.

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