This document is a datasheet for the 2SC5545 NPN bipolar junction transistor. Here's a breakdown of the key information it contains:

1. Key Features & Specifications:

️· Type: NPN bipolar transistor
️· Applications: General-purpose amplification, switching
️· Voltage: Vceo (Collector-Emitter Voltage): 50V
️· Current: Ic (Collector Current): 1A
️· Power Dissipation: Pd: 1W
️· Frequency: Transition Frequency (ft): 150MHz
️· Package: MPAK-4 (SC-61AA) surface mount package.

2. Electrical Characteristics:

The datasheet provides a table of electrical characteristics like:

️· DC Current Gain (hFE) - varies depending on Ic and Vce
️· Collector-Base Capacitance (Cbo)
️· Collector-Emitter Capacitance (Ceco)
️· Saturation Voltages

3. S-Parameters:

The datasheet includes S-parameters (scattering parameters) which are used for high-frequency circuit design. This indicates the transistor's performance at higher frequencies.

4. Package Information:

️· Detailed mechanical drawings of the MPAK-4 package.
️· Dimensions and layout for PCB design.
️· Ordering information (quantity and packaging options).

5. Ordering Information

️· The part can be ordered as 2SC5545ZS-TL-E which comes in 3000 quantity and packed on a 330mm reel, 8 mm pitch.



In essence, this datasheet provides all the necessary technical information for engineers and designers to use the 2SC5545 in their circuits. It includes both DC and AC characteristics, mechanical dimensions, and ordering information.