Overview
The KSC1845FTA is an NPN Epitaxial Silicon Transistor manufactured by onsemi. This transistor is designed for audio frequency low-noise amplifier applications and serves as a complement to the KSA992 transistor. It features a TO-226AA (TO-92) package and is suitable for various industrial and power management applications due to its robust specifications and reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Base Voltage (VCBO) | 120 | V |
| Collector-Emitter Voltage (VCEO) | 120 | V |
| Emitter-Base Voltage (VEBO) | 5 | V |
| Collector Current (IC) | 50 | mA |
| Base Current (IB) | 10 | mA |
| Junction Temperature (TJ) | 150 | °C |
| Storage Temperature (TSTG) | -55 to 150 | °C |
| Power Dissipation (PD) | 500 | mW |
| Thermal Resistance, Junction-to-Ambient (RJA) | 250 | °C/W |
| Current Gain (hFE) | 300 (typical) | |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.07 to 0.30 | V |
| Base-Emitter On Voltage (VBE(on)) | 0.55 to 0.65 | V |
| Current Gain Bandwidth Product (fT) | 50 to 100 | MHz |
| Output Capacitance (Cob) | 1.6 to 2.5 | pF |
| Noise Figure (NF) | 7 dB (typical) |
Key Features
The KSC1845FTA transistor boasts several key features:
- Audio Frequency Low-Noise Amplifier: Suitable for applications requiring low noise at audio frequencies.
- Complement to KSA992: Provides a matching transistor for complementary circuits.
- Pb-Free Device: Compliant with lead-free regulations, making it environmentally friendly.
- High Collector-Base Voltage: Up to 120V, allowing for use in a variety of power management and industrial applications.
- High Current Gain: Typical hFE of 300, ensuring reliable amplification.
- Low Saturation Voltage: Collector-Emitter saturation voltage as low as 0.07V, reducing power consumption.
Applications
The KSC1845FTA transistor is versatile and can be used in several applications, including:
- Audio Amplifiers: Ideal for low-noise audio frequency amplification.
- Industrial Applications: Suitable for various industrial control and power management systems.
- Power Management: Used in power supply circuits and other power management applications due to its high voltage and current ratings.
Q & A
- What is the collector-base voltage of the KSC1845FTA transistor?
The collector-base voltage (VCBO) of the KSC1845FTA transistor is 120V.
- What is the maximum collector current of the KSC1845FTA transistor?
The maximum collector current (IC) of the KSC1845FTA transistor is 50mA.
- What is the typical current gain (hFE) of the KSC1845FTA transistor?
The typical current gain (hFE) of the KSC1845FTA transistor is 300.
- What is the maximum junction temperature of the KSC1845FTA transistor?
The maximum junction temperature (TJ) of the KSC1845FTA transistor is 150°C.
- What is the power dissipation of the KSC1845FTA transistor?
The power dissipation (PD) of the KSC1845FTA transistor is 500mW.
- What is the thermal resistance, junction-to-ambient (RJA) of the KSC1845FTA transistor?
The thermal resistance, junction-to-ambient (RJA) of the KSC1845FTA transistor is 250°C/W.
- What are the typical applications of the KSC1845FTA transistor?
The KSC1845FTA transistor is typically used in audio frequency low-noise amplifier applications, industrial applications, and power management systems..
- Is the KSC1845FTA transistor Pb-free?
Yes, the KSC1845FTA transistor is a Pb-free device, making it compliant with lead-free regulations.
- What is the package type of the KSC1845FTA transistor?
The KSC1845FTA transistor comes in a TO-226AA (TO-92) package..
- What is the noise figure of the KSC1845FTA transistor?
The noise figure (NF) of the KSC1845FTA transistor is typically 7 dB..
