The 2SB1144 is a silicon PNP epitaxial planar transistor manufactured by SANYO Semiconductor. It's designed for high-current switching and amplifier applications.

Applications

• High-current switching circuits: Used in applications requiring switching of relatively large currents.
• Amplifier circuits: Suitable for general-purpose amplification, particularly in audio amplifier output stages.
• Power supplies: Can be found in linear power supplies for regulating voltage and current.
• Motor control circuits: Used as a switch or amplifier in motor control applications.

Features

• High Collector Current (IC): Capable of handling collector currents up to -7A.
• Low Saturation Voltage (VCE(sat)): Offers low voltage drop when saturated, which reduces power dissipation.
• High Power Dissipation (PC): Designed to dissipate relatively high power.
• Good hFE Linearity: Provides a relatively stable current gain over a range of collector currents.
• PNP Epitaxial Planar Transistor: Indicates the manufacturing process and type of transistor.

Benefits

• Efficient Switching: Low saturation voltage contributes to efficient switching performance, reducing power loss.
• High Current Handling: Enables use in applications requiring significant current control.
• Reliable Amplification: Good hFE linearity ensures consistent amplifier performance.
• Simplified Circuit Design: Easy to integrate into various circuits due to its standard characteristics.

Additional Details

Absolute Maximum Ratings:

• Collector-Base Voltage (VCBO): -60V
• Collector-Emitter Voltage (VCEO): -60V
• Emitter-Base Voltage (VEBO): -7V
• Collector Current (IC): -7A
• Collector Power Dissipation (PC): 25W (with heat sink)
• Junction Temperature (Tj): 150°C
• Storage Temperature (Tstg): -55 to +150°C

Electrical Characteristics (at Ta = 25°C):

• Collector Cutoff Current (ICBO): -1µA (max)
• Emitter Cutoff Current (IEBO): -1µA (max)
• DC Current Gain (hFE): 80-240 (at VCE = -2V, IC = -1A)
• Collector-Emitter Saturation Voltage (VCE(sat)): -0.5V (max) (at IC = -3A, IB = -0.3A)
• Transition Frequency (fT): 70 MHz (typ)