The 2SC1473A-R is a silicon NPN epitaxial planar transistor manufactured by Panasonic. This transistor is designed for use in various audio frequency amplifier applications, particularly in the driver stages of audio amplifiers and general-purpose switching circuits. Its high gain and low noise characteristics make it suitable for demanding audio applications.

Applications:

• Audio frequency amplifier driver stages
• General-purpose switching circuits
• Low-noise amplifier circuits
• Signal amplification
• Audio preamplifiers

Features:

• High Current Gain (hFE): Typically 200 to 400 (at VCE = 5V, IC = 150mA)
• Low Noise Figure: Typically 1dB (at VCE = 5V, IC = 1mA, f = 1kHz)
• High Collector Dissipation (PC): 400 mW
• Collector-Emitter Voltage (VCEO): 25 V
• Collector Current (IC): 500 mA
• Transition Frequency (fT): Typically 180 MHz

Benefits:

• Excellent amplification characteristics for audio signals.
• Low noise performance ensures high-quality audio reproduction.
• Suitable for a wide range of signal amplification applications.
• Provides reliable switching performance.
• Easy to integrate into existing circuits.

Additional Details:

The 2SC1473A-R is housed in a small signal package, suitable for through-hole mounting. The transistor’s high gain ensures efficient amplification of weak signals. The low noise figure is critical for maintaining signal integrity in sensitive audio applications. Its maximum collector dissipation of 400 mW allows for moderate power handling capabilities. When using this transistor, ensure that the operating conditions remain within the specified maximum ratings to prevent damage and ensure long-term reliability. It's frequently used as a driver transistor to provide sufficient voltage and current to the final output stage of audio amplifiers.