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KSA733Y from FSC,Fairchild Semiconductor

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KSA733Y

Manufacturer: FSC, FAI

Low Frequency Amplifier

Partnumber Manufacturer Quantity Availability
KSA733Y FSC, FAI 6850 In Stock

Description and Introduction

Low Frequency Amplifier The part **KSA733Y** is a PNP general-purpose amplifier transistor manufactured by **FAI (First Active International)**. Below are the specifications, descriptions, and features based on available factual data:

### **Specifications:**
- **Transistor Type:** PNP  
- **Maximum Collector-Base Voltage (VCB):** -50V  
- **Maximum Collector-Emitter Voltage (VCE):** -45V  
- **Maximum Emitter-Base Voltage (VEB):** -5V  
- **Collector Current (IC):** -150mA  
- **Power Dissipation (PD):** 250mW  
- **DC Current Gain (hFE):** 60-320 (depending on operating conditions)  
- **Transition Frequency (fT):** 180MHz  
- **Operating Temperature Range:** -55°C to +150°C  

### **Descriptions:**
- The **KSA733Y** is a small-signal PNP transistor designed for general-purpose amplification and switching applications.  
- It is housed in a **TO-92** package, making it suitable for compact circuit designs.  
- Commonly used in audio amplifiers, signal processing, and low-power switching circuits.  

### **Features:**
- **High current gain (hFE)** for improved amplification efficiency.  
- **Low noise performance**, making it suitable for audio applications.  
- **Fast switching speed** due to its high transition frequency.  
- **Reliable and robust** for various electronic circuit designs.  

This information is based on standard manufacturer datasheets and industry specifications for the **KSA733Y** transistor by **FAI**.

Application Scenarios & Design Considerations

Low Frequency Amplifier

Alternative Part Number

  • 2SA733 --: Original Japanese PNP transistor that the KSA733 series was cloned from; same low-power audio switching characteristics and pinout.
  • BC557 --: Widely available PNP general-purpose transistor with similar voltage and current ratings, suitable for low-power switching and amplification.
  • 2N3906 --: Common PNP small-signal transistor with comparable ratings and TO-92 package, easy drop-in for many KSA733 applications.

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