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KRC405 from KEC

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KRC405

Manufacturer: KEC

EPITAXIAL PLANAR NPN TRANSISTOR (SWITCHING, INTERFACE CIRCUIT AND DRIVER CIRCUIT)

Partnumber Manufacturer Quantity Availability
KRC405 KEC 3000 In Stock

Description and Introduction

EPITAXIAL PLANAR NPN TRANSISTOR (SWITCHING, INTERFACE CIRCUIT AND DRIVER CIRCUIT) Here is the factual information about part **KRC405** from the manufacturer **KEC**:

### **Specifications:**  
- **Manufacturer:** KEC (Korea Electronics Company)  
- **Part Number:** KRC405  
- **Type:** Voltage Regulator IC  
- **Package:** TO-220 (standard package)  
- **Input Voltage Range:** 7V to 35V  
- **Output Voltage:** 5V (fixed)  
- **Output Current:** Up to 1A  
- **Line Regulation:** ±0.2% (typical)  
- **Load Regulation:** ±0.4% (typical)  
- **Dropout Voltage:** 2V (typical at full load)  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**  
The **KRC405** is a fixed 5V voltage regulator IC designed for stable power supply applications. It provides a constant output voltage with built-in overcurrent and thermal protection.  

### **Features:**  
- **Fixed 5V Output**  
- **Thermal Overload Protection**  
- **Short-Circuit Protection**  
- **Low Ripple & Noise**  
- **Wide Input Voltage Range (7V–35V)**  
- **High Reliability & Stability**  

Let me know if you need further details.

Application Scenarios & Design Considerations

EPITAXIAL PLANAR NPN TRANSISTOR (SWITCHING, INTERFACE CIRCUIT AND DRIVER CIRCUIT)

Alternative Part Number

  • DTC143ZE --: NPN digital transistor with built-in 4.7k base and 47k emitter resistors, functionally equivalent to the KRC405 and widely available.
  • UN4211 --: NPN digital transistor with integrated bias resistors matching the KRC405's typical 4.7k/47k configuration, suitable direct replacement.
  • MMUN2211LT1G --: NPN bias resistor equipped transistor in SOT-23, common cross-reference for KRC-series digital transistors with similar resistor values.

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