Introduction
The MJE13005 is a high-voltage NPN power transistor designed for switching and amplification in medium- to high-power electronic circuits. Packaged in a durable TO-220 case, it is widely used in switching power supplies (SMPS), high-voltage converters, and inverters due to its excellent voltage handling capacity. With a collector-emitter voltage rating of up to 400V, it is suitable for use in circuits that operate directly from AC mains.
Engineers prefer the MJE13005 transistor in DC-DC converters, power inverters, and horizontal deflection stages in CRT monitors and televisions because of its fast switching speed, high breakdown voltage, and durability under load. Its rugged construction and efficient thermal performance make it reliable for continuous use in demanding applications.
MJE13005 NPN Power Transistor
This transistor is also highly popular in low- to medium-frequency switching circuits where efficiency and stability are critical. When combined with proper heatsinking, the MJE13005 offers long-term performance, making it a cost-effective choice for power regulation, motor control, and driver stages in power circuits.
MJE13005 Pinout
Pin Configuration
| Pin# | Pin Name | Pin Description |
|---|---|---|
| 1 | Base (B) | Controls the transistor switching. |
| 2 | Collector (C) | Current enters the transistor; connected to load. |
| 3 | Emitter (E) | Current exits the transistor; typically grounded. |
Key Features
- High collector-emitter voltage rating for direct mains-powered applications.
- Designed for high-speed switching in SMPS and inverters.
- Durable TO-220 package for efficient heat dissipation.
- Suitable for medium-power amplification and regulation.
- Reliable performance under continuous load conditions.
Characteristics
- Transistor Type: NPN
- Package: TO-220
- Collector–Emitter Voltage (Vce): 400V
- Collector–Base Voltage (Vcb): 700V
- Emitter–Base Voltage (Veb): 9V
- Collector Current (Ic): 4A
- Power Dissipation (Pd): 75W
- DC Current Gain (hFE): 8 – 40
- Transition Frequency (fT): 4 MHz (typical)
- Operating and Storage Temperature: -65°C to +150°C
The MJE13005 NPN power transistor remains a trusted choice for SMPS, inverters, CRT deflection stages, and high-voltage switching applications due to its reliability, affordability, and rugged design.
More Circuit Layouts
Key Applications of MJE13005 NPN Power Transistor
- Switching Power Supplies (SMPS).
- High-voltage power inverters.
- DC-DC converters.
- Horizontal deflection circuits in CRT monitors and televisions.
- Lighting ballasts and motor drivers.
- High-voltage amplifier circuits.
PNP Complimentary Transistor
The MJE13005 (NPN) does not have a direct PNP complementary in the same series. However, in high-voltage complementary designs, engineers often use MJE350 or MJE15033 as functional PNP alternatives depending on circuit requirements.
Equivalent of MJE13005 NPN Power Transistor
- MJE13007 (higher current and voltage rating).
- MJE13009 (NPN, higher power handling).
- 2SC1307 (close electrical equivalent).
- 2SC2655 (alternative in similar applications).
- BU508A (for horizontal deflection and high-voltage circuits).
(Pin configuration of some transistors mentioned above may different from MJE13005).
Comparison between MJE13005, MJE13007, and MJE13009
- MJE13005 → Best for low-power switching applications such as CFL drivers and smaller power supplies.
- MJE13007 → A mid-range option, capable of handling 8A current and 80W power, making it the most commonly used in SMPS, inverter circuits, and lighting drivers.
- MJE13009 → A higher-power alternative, with 12A current handling and up to 130W dissipation, suitable for high-power inverters, industrial SMPS, and demanding switching applications.
- Choose MJE13005 for small/low-power designs.
- Choose MJE13007 for balanced performance in medium-power designs.
- Choose MJE13009 for high-power, industrial-grade designs.
Datasheet of MJE13005 NPN Power Transistor
Click the following Button to download the datasheet of MJE13005 Transistor :
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