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The ROHM C144ES is a semiconductor component, specifically a bipolar transistor from ROHM Semiconductor. Below are its key specifications, descriptions, and features:

Specifications:

• Type: NPN Bipolar Transistor
• Package: TO-92 (Through-hole)
• Maximum Collector-Base Voltage (VCBO): 50V
• Maximum Collector-Emitter Voltage (VCEO): 45V
• Maximum Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 150mA
• Power Dissipation (PD): 300mW
• DC Current Gain (hFE): 120 ~ 400 (at IC = 2mA, VCE = 5V)
• Transition Frequency (fT): 250MHz (typical)
• Operating Temperature Range: -55°C to +150°C

Descriptions:

The C144ES is a general-purpose NPN transistor designed for low-power amplification and switching applications. It is commonly used in signal amplification, driver circuits, and small-load switching due to its moderate current and voltage ratings.

Features:

• High DC Current Gain (hFE) for improved amplification efficiency.
• Low Noise performance suitable for audio and signal processing.
• Compact TO-92 Package for easy PCB mounting.
• Wide Operating Temperature Range for reliable performance in various environments.

This transistor is often used in consumer electronics, audio amplifiers, and small electronic circuits. For exact performance characteristics, refer to ROHM’s official datasheet.