2SA1941 transistor
2SA1941 specification
- 2SA1941 PNP silicon triple diffused type POWER amplifier transistor device
- Collector to emitter voltage (VCE) is -140V
- Collector to base voltage (VCB) is -140V
- Emitter to base voltage (VEB) is –5V
- Collector current (IC) is -10A
- Base current (IB) is -1A
- Power dissipation is 100W
- DC current gain is 55 to 160hFE
- Transition frequency (FT) is 30MHz
- Junction temperature/storage temperature is between -55 to 150℃
- Collector to emitter saturation voltage (VCE (SAT)) is -0.8 to -2.0V
- Output capacitance is 320pF
- Power amplifier applications
- High breakdown voltage
2SA1941 Pinout
| Pin Number | Pin Name | Description |
| 1 | Base | Base terminal is the trigger for the transistor |
| 2 | Collector | Current flow through the collector |
| 3 | Emitter | Current flows through the emitter terminal |
2SA1941 package
The 2SA1941 power amplifier transistor has a TO-3P package, it is a three-terminal bulkier through-hole device package.
TO-3P package is made of epoxy/plastic material which will provide high-temperature capacity and also provide compactness to the device.
TO-3P is a through-hole package so we had the provision to attach a heat sink with it.
2SA1941 transistor specification & application description
Here we explain the electrical specifications of the 2SA1941 transistor, this is very useful for a better understanding of this device.
Voltage specs
Voltage specifications of the 2SA1941 transistor are collector to base voltage is -140V, collector to emitter voltage is -140V, and emitter to base voltage is -5V, the specs of the 2SA1941 transistor show that it is a power transistor mainly used for amplifier applications.
The collector-to-emitter saturation voltage is -0.8V and -2.0V, it is the triggering voltage of the transistor device.
Current specs
The collector current value of the 2SA1941 transistor is -10A, which is the load capacity of the device.
The base current value of the 2SA1941 transistor is -1A, it is the switching current value of the device.
The current specifications of the 2SA1941 transistor show it is a high-power amplifier device.
Dissipation specs
The power dissipation value of the 2SA1941 transistor is 100W, this value mainly depends on the device package.
Current gain specs
The gain value of the 2SA1941 transistor is 55 to 160Hfe, it is the amplification ability of the transistor. The 2SA1941 transistor had a main application based on the amplifier.
Transition frequency
The frequency value of the device is 30MHz, this value is mainly used in amplifier applications.
Junction temperature/ storage temperature
The maximum temperature value of the 2SA1941 transistor is -55 to +150℃.
Output capacitance
The output capacitance value of the 2SA1941 transistor is 320Pf, the capacitance values are been used at circuits.
2SA1941 DATASHEET
If you need the datasheet in pdf please click this link
2SA1941 equivalent
2SA1941 transistor has equivalent devices such as 2SA1106, 2SA1186, 2SA1516, 2SA1805, 2SA1943, and 2SA1302, each of these transistors has almost the same set of electrical specifications, so we can easily use it as the equivalent of 2SA1941 transistor.
2SA1941 complementary
2SA1941 PNP transistor device has 2SC5198 NPN complementary pair, both of them have the same set of electrical specifications, so we can use a push-pull circuit combination.
2SA1941 vs 2SA3102 vs 2SA1943
| Characteristics | 2SA1941 | 2SA3102 | 2SA1943 |
|---|---|---|---|
| Collector to emitter voltage (VCE) | -140V | -200V | -230V |
| Collector to base voltage (VCB) | -140V | -200V | -230V |
| Emitter to base voltage (VEB) | -5V | -5V | -5V |
| Collector to emitter saturation voltage (VCE (SAT)) | -0.8 to -2.0V | -3.0V | -1.5 to -3.0V |
| Collector current (IC) | -10A | -15A | -15A |
| Base current (IB) | -1A | -1.5mA | -1.5A |
| Power dissipation | 100W | 150W | 150W |
| Junction temperature (TJ) | -55 to +150°C | -55 to +150°C | -55 to +150℃ |
| Transition frequency (FT) | 30MHz | 25MHz | 30MHz |
| Gain (hFE) | 55 to 160hFE | 55 to 160hFE | 55 to 160hFE |
| Output capacitance | 320pF | 470pF | 360pF |
| Package | TO-3P | TO-3PL | TO-264 |
2SA1941 applications
- 70W high fidelity audio frequency amplifier output stage
- Power amplifier circuit
- Switching load circuit
- High voltage application circuit
2SA1941 graphical characteristics
The figure shows the output characteristics of the 2SA1941 transistor, and the graph plots with collector current vs collector to emitter voltage.
At different base current values, the collector current increases when the base current increases, and at last it becomes infinity.
The figure shows the DC current gain characteristics and the graph plots with dc current gain vs collector current.
At a constant voltage value, the dc current gain starts from a higher value and becomes constant, and decreases at the end.
