KSA992 transistor
KSA992 transistor electrical specification
- KSA992 audio frequency PNP transistor
- Collector to emitter voltage is -120V
- Collector to base voltage is -120V
- Emitter to base voltage is -5V
- Collector current is –50mA
- Base current is –10mA
- Power dissipation is 500mW
- DC current gain is 150 to 800hFE
- Gain Bandwidth (FT) is 100MHz
- Junction temperature is between 150℃
- Collector to emitter saturation voltage (VCE (SAT)) is -0.09 to -0.30V
- Noise figure (NF) 6dB
KSA992 transistor Pinout
| Pin Number | Pin Name | Description |
| 1 | Emitter | Current flows through the emitter terminal |
| 2 | Collector | Current flows through the collector |
| 3 | Base | The base is the trigger for the transistor |
KSA992 transistor package
The package used at KSA992 transistor is TO-92, it is a general-purpose transistor package mainly used at common transistors.
The TO-92 transistor is made with a mixture of plastic and epoxy material, these are good for heat withstanding and also they are of little weight.
KSA992 transistor electrical description and application notes
Voltage specs
The voltages such as collector to base and collector to emitter voltage value are -120v and emitter to base voltage are -5v, these three-terminal voltage shows that KSA992 is a power transistor.
The collector to emitter saturation voltage is -0.09 to -0.30v, the saturation voltage shows the switching speed of the transistor.
Current specs
The collector current value is -50mA, maximum load capacity of this transistor is low.
Dissipation specs
The power dissipation of the KSA992 transistor is 500mW
Current gain specs
The current gain value is between 150 to 800hFE, the amplification factor is high for this transistor.
Transition frequency/ Bandwidth frequency specs
The transition frequency is 100MHz, this value shows the transistor frequency range for audio applications.
Junction temperature
the junction temperature of 125℃, the KSA992 transistor had a low junction temperature value.
KSA992 transistor DATASHEET
If you need the datasheet in pdf please click this link
KSA992 transistor equivalent
The transistors such as 2SA1016K, 2SA1285, 2SA1285A, and 2SA992 are the equivalent transistors of KSA992.
We can easily replace each of these transistors as an equivalent for the KSA992 transistor, this is because they had the same electrical and physical specs.
KSA992 vs 2SA970 vs 2SA1285
In the table we try to list the electrical characteristics of KSA992 vs 2SA970 vs 2SA1285 transistor, this comparison table is really helpful for the replacement process.
| Characteristics | KSA992 | 2SA970 | 2SA1285 |
|---|---|---|---|
| Collector to base voltage (VCB) | -120V | -120V | -120V |
| Collector to emitter voltage (VCE) | -120V | -120V | -120V |
| Emitter to base voltage (VEB) | -5V | -5V | -5V |
| Collector to emitter saturation voltage (VCE (SAT)) | -0.09 to -0.30V | -0.3V | -0.17 to -0.6V |
| Collector current (IC) | -50mA | -100mA | -0.1A |
| Power dissipation | 500mW | 300mW | 0.9W |
| Junction temperature (TJ) | 150°C | 125°C | 150°C |
| Transition frequency (FT) | 100MHZ | 100MHZ | 200MHZ |
| Gain (hFE) | 150 to 800hFE | 200 to 700hFE | 150 to 800hFE |
| Package | TO-92 | TO-92 | TO-92 |
The voltage specs of each transistor device are the same, the current value is higher at the 2sa970 transistor and other than these quantities, the KSA992, and 2SA970 transistors had the same electrical values.
KSA992 transistor Complementary
The transistor KSC1845 is the (NPN) complementary for KSA992 (PNP), all the electrical specs of each device are the same.
KSA992 transistor characteristics
The figure shows the static characteristics of the KSA992 transistor, the graph is plotted with collector current vs collector to emitter voltage.
At each base current value, the collector current increases with respect to the collector to emitter voltage.
From the initial stage to the end, the transistor had a limited current value at any stage of operation.
The figure shows the DC current gain characteristics of the KSA992 transistor, the graph is plotted with dc current gain vs collector current.
At a proper collector to emitter voltage, the DC gain starts with a higher value with respect to collector current, then after a point gain drops towards a lower value.
Applications of 2SC5171 transistor
- Power amplifier
- Low noise amplifier
