The C2073 is a silicon NPN power transistor developed for general amplification and switching tasks. It offers high collector-emitter and collector-base voltage ratings, making it suitable for handling medium-high power loads. Packaged in the TO 220 form factor, the C2073 is commonly used in vertical output stages of televisions, power audio amplifiers, and various switching circuits. Its robust construction, reliable performance, and wide operating temperature range make it a preferred choice in many industrial and consumer electronic applications.
Overview:
The C2073 is a silicon power transistor developed using UTC’s advanced technology. It is primarily designed for general-purpose power amplification and vertical output stages in various electronic devices. With its high collector base voltage capability and robust current handling, it is suitable for numerous high-performance applications.
Pinout
| Pin Number | Description |
|---|---|
| 1 | Base |
| 2 | Collector |
| 3 | Emitter |
Features
Transistor Type: NPN
Collector-Emitter Voltage (V<sub>CEO</sub>): 150V
Collector-Base Voltage (V<sub>CBO</sub>): 150V
Emitter-Base Voltage (V<sub>EBO</sub>): 5V
Collector Current (I<sub>C</sub>): 1.5A
Collector Dissipation (P<sub>C</sub>): 25W
DC Current Gain (h<sub>FE</sub>): 40 to 140
Transition Frequency (f<sub>T</sub>): 4 MHz
Operating/Storage Temperature: –55°C to +150°C
Package Type: TO-220
Datasheet:
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| V<sub>CEsat</sub> | Collector-Emitter Saturation Voltage | I<sub>C</sub>=0.5A, I<sub>B</sub>=50mA | — | — | 1.5 | V |
| V<sub>BE</sub> | Base-Emitter On Voltage | I<sub>C</sub>=0.5A, V<sub>CE</sub>=10V | — | — | 0.85 | V |
| I<sub>CBO</sub> | Collector Cut-off Current | V<sub>CB</sub>=120V, I<sub>E</sub>=0 | — | — | 10 | µA |
| I<sub>EBO</sub> | Emitter Cut-off Current | V<sub>EB</sub>=5V, I<sub>C</sub>=0 | — | — | 10 | µA |
| h<sub>FE</sub> | DC Current Gain | I<sub>C</sub>=0.5A, V<sub>CE</sub>=10V | 40 | — | 140 | — |
| C<sub>OB</sub> | Output Capacitance | I<sub>E</sub>=0, V<sub>CB</sub>=10V, f=1MHz | — | — | 35 | pF |
| f<sub>T</sub> | Transition Frequency | I<sub>C</sub>=0.5A, V<sub>CE</sub>=10V | — | — | 4 | MHz |
Absolute Maximum Ratings (T<sub>a</sub> = 25°C)
| Symbol | Parameter | Condition | Value | Unit |
|---|---|---|---|---|
| V<sub>CBO</sub> | Collector-Base Voltage | Open emitter | 150 | V |
| V<sub>CEO</sub> | Collector-Emitter Voltage | Open base | 150 | V |
| V<sub>EBO</sub> | Emitter-Base Voltage | Open collector | 5 | V |
| I<sub>C</sub> | Collector Current | — | 1.5 | A |
| I<sub>B</sub> | Base Current | — | 0.5 | A |
| P<sub>C</sub> | Collector Power Dissipation | T<sub>C</sub>=25°C | 25 | W |
| T<sub>j</sub> | Junction Temperature | — | 150 | °C |
| T<sub>stg</sub> | Storage Temperature Range | — | –55~150 | °C |
Equivalents for C2073
The following are some equivalents:
2SA940, 2SC1448, 2SC2073A, 2SC3296, 2SD401, 2SD402, 2SD610, 2SD772, 2SD792, KSC2073, MJE15030, MJF15030, TIP41F, and more.
Applications:
The C2073 is suitable for a wide variety of general-purpose applications, including:
- Power audio amplifier circuits
- Vertical output circuitry
- Switching loads under 1.5A
- Use in Darlington pairs
- Other power and signal switching circuits
Conclusion:
The C2073 power transistor is a reliable component suitable for a range of medium power applications, especially in amplifier circuits and vertical deflection systems. With its high voltage and current ratings, stable performanc,e and ease of use in the TO 220 package, it serves as a dependable choice for both hobbyists and professionals. Whether used in switching loads or audio output stages, the C2073 delivers efficient performance when properly configured with adequate heat dissipation and within its rated specifications.