Overview
The NJW3281G is a high-power NPN bipolar transistor manufactured by onsemi. This transistor is designed for high-power applications, including power audio, disk head positioners, and other linear applications. It is part of a complementary pair with the NJW1302G PNP transistor, offering symmetrical characteristics and excellent gain linearity.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Transistor Type | NPN | |
| Maximum DC Collector Current | 15 | A |
| Maximum Collector-Emitter Voltage | 250 | Vdc |
| Maximum Collector-Base Voltage | 250 | Vdc |
| Maximum Emitter-Base Voltage | 5 | Vdc |
| Maximum Power Dissipation | 200 | W |
| Package Type | TO-3P | |
| Mounting Type | Through Hole | |
| Maximum Operating Frequency | 1 MHz | |
| Pin Count | 3 | |
| Dimensions | 15.8 x 5 x 20.1 mm | |
| Maximum Operating Temperature | +150 °C | |
| Transition Frequency (ft) | 30 MHz | |
| Forward Current Transfer Ratio (hFE), MIN | 75 |
Key Features
- Exceptional Safe Operating Area (SOA)
- NPN/PNP Gain Matching within 10% from 50 mA to 5 A
- Excellent Gain Linearity
- High BVCEO and high frequency capabilities
- Reliable performance at higher powers
- Symmetrical characteristics in complementary configurations
- Accurate reproduction of input signal and greater dynamic range
- Pb-free and RoHS compliant
Applications
- High-power audio amplifiers
- Disk head positioners
- Switching regulators
- High-frequency inverters
- General-purpose power amplifiers
- Home amplifiers and receivers
- Professional audio amplifiers (theater and stadium sound systems, public address systems)
Q & A
- What is the maximum DC collector current of the NJW3281G transistor?
The maximum DC collector current is 15 A. - What is the maximum collector-emitter voltage of the NJW3281G transistor?
The maximum collector-emitter voltage is 250 Vdc. - What is the package type of the NJW3281G transistor?
The package type is TO-3P. - What is the maximum power dissipation of the NJW3281G transistor?
The maximum power dissipation is 200 W. - What is the maximum operating frequency of the NJW3281G transistor?
The maximum operating frequency is 1 MHz. - What are the dimensions of the NJW3281G transistor?
The dimensions are 15.8 x 5 x 20.1 mm. - What is the maximum operating temperature of the NJW3281G transistor?
The maximum operating temperature is +150 °C. - Is the NJW3281G transistor Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant. - What are some typical applications of the NJW3281G transistor?
Typical applications include high-power audio, disk head positioners, switching regulators, high-frequency inverters, and general-purpose power amplifiers. - What is the transition frequency (ft) of the NJW3281G transistor?
The transition frequency (ft) is 30 MHz.
