The PZT5551L is a high-voltage, high-speed NPN epitaxial planar transistor from UTC (Unisonic Technologies Co., Ltd). It's designed for applications requiring moderate power dissipation and high breakdown voltage, typically in switching and amplification circuits. This transistor offers reliable performance and is suitable for a variety of electronic devices.

Applications:

• High-voltage switching circuits
• Amplification circuits
• Power supplies
• DC-DC converters
• Lighting ballast circuits

Features:

• High breakdown voltage (VCEO = 160V)
• High Collector current (IC = 600mA)
• Low saturation voltage
• Fast switching speed
• Epitaxial planar structure for improved reliability
• RoHS compliant

Benefits:

• Enables efficient high-voltage switching
• Provides high gain for amplification applications
• Reduces power loss due to low saturation voltage
• Suitable for high-frequency applications due to fast switching speed
• Offers enhanced reliability due to its structure
• Environmentally friendly due to RoHS compliance

Additional Details:

The PZT5551L typically comes in a SOT-23 package. Key specifications include a collector-emitter voltage (VCEO) of 160V, a collector-base voltage (VCBO) of 180V, and an emitter-base voltage (VEBO) of 6V. The continuous collector current (IC) is rated at 600mA, and the peak collector current (ICM) is typically around 1A. Power dissipation is usually around 350mW. The operating and storage junction temperature range is typically from -55°C to +150°C. It is commonly used as a small signal amplifier and switch.