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TN3019 from National,National Semiconductor

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TN3019

Manufacturer: National, NS

Power Transistors

Partnumber Manufacturer Quantity Availability
TN3019 National, NS 4710 In Stock

Description and Introduction

Power Transistors Part TN3019 is manufactured by **National Semiconductor**, which is now part of **Texas Instruments** following its acquisition in 2011.  

### **Specifications:**  
- **Manufacturer:** National Semiconductor (now Texas Instruments)  
- **Type:** Voltage Regulator (specific subtype may vary; check datasheet for exact details)  
- **Input Voltage Range:** (Refer to datasheet; varies by model)  
- **Output Voltage:** (Refer to datasheet; depends on variant)  
- **Current Rating:** (Check datasheet for exact amperage)  
- **Package Type:** (Commonly TO-220, TO-263, or other standard packages)  
- **Operating Temperature Range:** (Typically -40°C to +125°C, but verify in datasheet)  

### **Descriptions & Features:**  
- Designed for stable voltage regulation in electronic circuits.  
- May include overcurrent protection, thermal shutdown, and short-circuit protection (confirm via datasheet).  
- Suitable for power supply applications in consumer electronics, industrial systems, and automotive uses.  
- Low dropout (LDO) variants may be available for specific models.  

For precise details, refer to the official **Texas Instruments datasheet** for TN3019.

Application Scenarios & Design Considerations

Power Transistors

Alternative Part Number

  • 2N3904 --: Widely available general-purpose NPN transistor in TO-92, a common substitute for small-signal switching and amplification where the original TN3019 was used.
  • BC547 --: Low-noise general-purpose NPN transistor with similar small-signal characteristics, suitable as a functional replacement in most circuits.
  • 2N2222A --: Robust general-purpose NPN transistor with higher current capability, often used as a drop-in alternative for small-signal NPN parts.
  • 2N3019 --: Same 2N3019 JEDEC series NPN transistor with similar voltage and current ratings, widely available as a direct functional substitute.
  • 2N2219A --: General-purpose NPN transistor with comparable 40V/800mA ratings and similar gain, commonly used in place of 2N3019-type parts.
  • BSV52 --: Small-signal NPN switching transistor with similar current capability, suitable for low-power switching applications as an alternative.

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