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KSD1408YTU from FAIRCHIL,Fairchild Semiconductor

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KSD1408YTU

Manufacturer: FAIRCHIL, FAIRCHILD

NPN Epitaxial Silicon Transistor

Partnumber Manufacturer Quantity Availability
KSD1408YTU FAIRCHIL, FAIRCHILD 1052 In Stock

Description and Introduction

NPN Epitaxial Silicon Transistor The part **KSD1408YTU** is manufactured by **FAIRCHILD**. Below are the specifications, descriptions, and features based on the available knowledge:  

### **Specifications:**  
- **Manufacturer:** FAIRCHILD  
- **Part Number:** KSD1408YTU  
- **Type:** NPN Bipolar Junction Transistor (BJT)  
- **Package:** SOT-23 (TO-236AB)  
- **Polarity:** NPN  
- **Maximum Collector-Base Voltage (VCB):** 60V  
- **Maximum Collector-Emitter Voltage (VCE):** 60V  
- **Maximum Emitter-Base Voltage (VEB):** 5V  
- **Continuous Collector Current (IC):** 500mA  
- **Total Power Dissipation (PD):** 350mW  
- **DC Current Gain (hFE):** 100-300 (at IC = 150mA)  
- **Transition Frequency (fT):** 250MHz  
- **Operating Temperature Range:** -55°C to +150°C  

### **Description:**  
The **KSD1408YTU** is a general-purpose NPN transistor in a compact SOT-23 package, designed for switching and amplification applications. It offers high current gain and fast switching performance, making it suitable for low-power circuits.  

### **Features:**  
- High current gain (hFE)  
- Low saturation voltage  
- Fast switching speed  
- Small SOT-23 package for space-constrained designs  
- Suitable for general-purpose amplification and switching  

This information is based solely on the available data for the **KSD1408YTU** from **FAIRCHILD**.

Application Scenarios & Design Considerations

NPN Epitaxial Silicon Transistor

Alternative Part Number

  • BD139 --: Widely available NPN medium-power transistor in TO-126, similar voltage/current class and commonly used as a substitute for KSD1408 audio driver applications.
  • 2SC2383 --: NPN transistor in TO-92L with comparable current gain and voltage ratings, often used as an alternative in driver and small-signal amplifier circuits.
  • MJE13003 --: NPN power transistor in TO-126 with higher voltage rating and similar package, suitable for switching and driver roles where KSD1408 is used.
  • MJE340 --: NPN power transistor with comparable voltage and current capability in TO-126 package, suitable for driver and amplifier applications.
  • 2SC5171 --: NPN transistor with similar power handling and voltage ratings, often used in audio driver circuits as an alternative to the KSD1408 series.

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