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KSA1381ES from FSC,Fairchild Semiconductor

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KSA1381ES

Manufacturer: FSC

PNP Epitaxial Silicon Transistor

Partnumber Manufacturer Quantity Availability
KSA1381ES FSC 1955 In Stock

Description and Introduction

PNP Epitaxial Silicon Transistor Part KSA1381ES is a PNP Epitaxial Planar Transistor manufactured by Fairchild Semiconductor (FSC).  

### **Specifications:**  
- **Type:** PNP Bipolar Junction Transistor (BJT)  
- **Collector-Base Voltage (VCBO):** -120V  
- **Collector-Emitter Voltage (VCEO):** -120V  
- **Emitter-Base Voltage (VEBO):** -5V  
- **Collector Current (IC):** -1.5A  
- **Total Power Dissipation (PTOT):** 1.25W  
- **Junction Temperature (TJ):** 150°C  
- **DC Current Gain (hFE):** 60 to 240 (depending on conditions)  
- **Transition Frequency (fT):** 50MHz  

### **Descriptions and Features:**  
- Designed for general-purpose amplification and switching applications.  
- High voltage capability.  
- Low saturation voltage.  
- Complementary to NPN transistor KSC3503.  
- Available in TO-92 package.  

(Source: Fairchild Semiconductor Datasheet)

Application Scenarios & Design Considerations

PNP Epitaxial Silicon Transistor

Alternative Part Number

  • 2SA1381 --: Same PNP high-voltage transistor family; the KSA1381 is essentially a Fairchild-branded 2SA1381, so this is a direct functional equivalent.
  • MJE350 --: PNP high-voltage transistor with comparable voltage and current ratings, widely used as a substitute in similar amplifier and switching circuits.
  • 2N5401 --: Common PNP high-voltage transistor with adequate VCEO and current rating for many circuits where the KSA1381 is used, though pinout and exact ratings should be verified.

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