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KSD471A-Y from SEC

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KSD471A-Y

Manufacturer: SEC, FSC

NPN Silicon Transistors

Partnumber Manufacturer Quantity Availability
KSD471A-Y,KSD471AY SEC, FSC 12040 In Stock

Description and Introduction

NPN Silicon Transistors The part **KSD471A-Y** is manufactured by **FSC** (Fairchild Semiconductor Corporation).  

### **Specifications:**  
- **Type:** Thermal protector / temperature switch  
- **Operating Temperature Range:** Typically designed for specific temperature thresholds (exact range depends on model variant)  
- **Contact Configuration:** Normally closed (NC) or normally open (NO) depending on variant  
- **Rated Voltage/Current:** Varies by model (check datasheet for exact ratings)  
- **Termination:** Lead wires or terminals  

### **Descriptions & Features:**  
- Used for over-temperature protection in appliances, motors, and power supplies.  
- Snap-action bimetallic disc ensures reliable switching.  
- Resettable or non-resettable variants available.  
- Compact design for easy integration.  

For precise specifications, refer to the **FSC datasheet** for **KSD471A-Y**.

Application Scenarios & Design Considerations

NPN Silicon Transistors

Alternative Part Number

  • 2SC1815-Y --: Widely available NPN audio/small-signal transistor with similar Y current-gain ranking and comparable Vceo/Ic ratings, a common drop-in for KSD471A-Y.
  • BC547B --: Standard general-purpose NPN transistor with similar gain group and voltage/current ratings, easy to source and often used as a substitute in low-power switching and amplifier circuits.
  • 2N3904 --: Very common general-purpose NPN transistor with comparable small-signal characteristics; check pinout and exact gain bin before substituting in critical designs.

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