Overview
The MJE340 transistor, produced by NTE Electronics, Inc., is a versatile and widely used NPN bipolar junction transistor (BJT). It is known for its high-voltage and high-current handling capabilities, making it suitable for a broad range of electronic applications. The MJE340 is packaged in a TO-126 or TO-225AA package and is characterized by its reliability and availability, making it a staple component in many electronic projects.
This transistor is particularly useful in applications requiring amplification and switching due to its high current gain, low saturation voltage, and excellent switching characteristics. Its maximum collector current of 0.5A and maximum voltage rating of 300V ensure it can handle demanding tasks in various electronic circuits.
Key Specifications
| Specification | Value |
|---|---|
| Type | NPN Bipolar Junction Transistor |
| Maximum Collector Current (Ic) | 0.5 A (500 mA) |
| Maximum Collector-Emitter Voltage (Vce) | 300 V |
| Maximum Collector-Base Voltage (Vcb) | 300 V |
| Maximum Emitter-Base Voltage (Veb) | 5 V |
| DC Current Gain (hfe) | Typically 30 to 70 |
| Power Dissipation (Pd) | 20 W |
| Transition Frequency (fT) | Not typically specified, but around 4 MHz for similar models |
| Package Type | TO-126 or TO-225AA |
Key Features
- Transistor Type: NPN Bipolar Junction Transistor
- Maximum Collector Current (Ic): 0.5 A
- Maximum Voltage Rating (VCEO): 300 V
- Current Gain (hFE): 30 to 70
- Saturation Voltage: Low
- Switching Speed: Fast
- Package: TO-126 or TO-225AA
- Applications: Audio amplifiers, power supplies, motor control, lighting control, general-purpose switching applications
Applications
- Linear Power Supplies: Suitable for use in linear power supply circuits due to its high voltage and current handling capabilities.
- Switching Power Supplies: Used in switching power supply circuits for efficient power management.
- Inverter Circuits: Employed in inverter circuits for converting DC to AC.
- UPS Circuits: Utilized in Uninterruptible Power Supply (UPS) systems for reliable power backup.
- Battery Charger Applications: Used in battery charger circuits for efficient charging.
- Motor Controllers: Applied in motor control circuits for managing motor operations.
- Audio Amplification: Suitable for general-purpose audio amplification due to its 20W collector dissipation.
- DC High Voltage Switching: Ideal for high-voltage switching applications.
Q & A
- What is the maximum collector current of the MJE340 transistor?
The maximum collector current of the MJE340 transistor is 0.5 A (500 mA).
- What is the maximum collector-emitter voltage rating of the MJE340 transistor?
The maximum collector-emitter voltage rating of the MJE340 transistor is 300 V.
- What is the typical DC current gain (hFE) of the MJE340 transistor?
The typical DC current gain (hFE) of the MJE340 transistor is between 30 to 70.
- What package types are available for the MJE340 transistor?
The MJE340 transistor is available in TO-126 and TO-225AA packages.
- What are some common applications of the MJE340 transistor?
The MJE340 transistor is commonly used in audio amplifiers, power supplies, motor control, lighting control, and general-purpose switching applications.
- What is the power dissipation of the MJE340 transistor?
The power dissipation of the MJE340 transistor is 20 W.
- Is the MJE340 transistor RoHS compliant?
- What is the operating temperature range for the MJE340 transistor?
The operating temperature range for the MJE340 transistor is -65 to +150 ℃.
- Can the MJE340 transistor be used in high-voltage switching applications?
- What are some equivalent transistors to the MJE340?
