Overview
The MJF127G is a complementary silicon power Darlington transistor produced by onsemi. It is designed for general-purpose amplifiers and switching applications, particularly where the mounting surface of the device needs to be electrically isolated from the heatsink or chassis. This component is electrically similar to the popular TIP127 and offers several key advantages, including high DC current gain and reduced system cost.
Key Specifications
| Characteristic | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Collector-Emitter Sustaining Voltage | VCEO(sus) | 100 | - | Vdc |
| Collector Cutoff Current | ICEO | - | 2 | mAdc |
| DC Current Gain (IC = 3 Adc, VCE = 3 Vdc) | hFE | 2000 | - | - |
| Rated Collector Current | IC | - | 5.0 | A |
| Operating and Storage Junction Temperature Range | TJ, Tstg | -65 | +150 | °C |
| Thermal Resistance, Junction-to-Ambient | RJA | - | 62.5 | °C/W |
Key Features
- Electrically similar to the popular TIP127.
- 100 VCEO(sus) and 5.0 A rated collector current.
- No isolating washers required, reducing system cost.
- High DC current gain of 2000 (min) at IC = 3 Adc.
- UL recognized, File #E69369, to 3500 VRMS isolation.
- Pb-free packages available.
Applications
The MJF127G is suitable for a variety of applications, including general-purpose amplifiers and switching circuits where electrical isolation between the device and the heatsink or chassis is necessary. It is particularly useful in power supply circuits, motor control systems, and other high-current applications requiring reliable and efficient performance.
Q & A
- What is the MJF127G used for?
The MJF127G is used in general-purpose amplifiers and switching applications, especially where electrical isolation is required.
- What is the collector-emitter sustaining voltage of the MJF127G?
The collector-emitter sustaining voltage (VCEO(sus)) is 100 Vdc.
- What is the rated collector current of the MJF127G?
The rated collector current is 5.0 A.
- Does the MJF127G require isolating washers?
No, the MJF127G does not require isolating washers, which helps reduce system cost.
- What is the DC current gain of the MJF127G?
The DC current gain (hFE) is 2000 (min) at IC = 3 Adc.
- Is the MJF127G UL recognized?
- What is the thermal resistance of the MJF127G?
The thermal resistance, junction-to-ambient (RJA), is 62.5 °C/W.
- What is the operating temperature range of the MJF127G?
The operating and storage junction temperature range is -65°C to +150°C.
- Are Pb-free packages available for the MJF127G?
- How should the MJF127G be mounted to ensure maximum power dissipation?
The MJF127G should be mounted using a screw and compression washer technique with a recommended torque of 6 to 8 in . lbs to ensure maximum power dissipation capability.
