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LM343H

Manufacturer: NS

High Voltage Operational Amplifier

Partnumber Manufacturer Quantity Availability
LM343H NS 707 In Stock

Description and Introduction

High Voltage Operational Amplifier The LM343H is a high-voltage NPN transistor manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Transistor Type:** NPN  
- **Collector-Emitter Voltage (VCEO):** 350V  
- **Collector-Base Voltage (VCBO):** 350V  
- **Emitter-Base Voltage (VEBO):** 7V  
- **Collector Current (IC):** 1A  
- **Power Dissipation (PD):** 40W  
- **DC Current Gain (hFE):** 15 to 60  
- **Operating Temperature Range:** -65°C to +200°C  
- **Package Type:** TO-39 (Metal Can)  

### **Description:**  
The LM343H is a high-voltage NPN transistor designed for applications requiring high breakdown voltage and power handling capabilities. It is suitable for use in power amplifiers, voltage regulators, and switching circuits.  

### **Features:**  
- High collector-emitter voltage (350V)  
- High power dissipation (40W)  
- Metal can package for improved thermal performance  
- Suitable for high-voltage and power applications  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

High Voltage Operational Amplifier

Alternative Part Number

  • LM143H --: Same LM1xxH metal-can op-amp family with similar high-voltage specifications and pinout, a common drop-in substitute.
  • OPA111AM --: Precision high-voltage metal-can operational amplifier with comparable input characteristics, suitable for similar applications.
  • AD517JH --: High-voltage precision op-amp in a metal TO-99 package offering similar performance for legacy LM343H designs.
  • AD741JH --: Classic general-purpose op-amp in a hermetic metal package offering comparable performance for legacy LM343H sockets.

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