JANSR2N3440 Overview
The JANSR2N3440 is a robust NPN silicon transistor designed for industrial and power switching applications. Offering high collector current capacity and voltage ratings, it delivers reliable performance in demanding environments. This transistor provides efficient switching with low saturation voltage, contributing to reduced power losses and enhanced system efficiency. Its TO-3 package ensures excellent thermal dissipation, making it suitable for high-power amplifier circuits and motor control systems. Engineers and sourcing specialists can rely on this device for durability and consistent operation across a wide temperature range. Learn more from IC Manufacturer.
JANSR2N3440 Key Features
- High Collector Current Capacity: Supports up to 15A continuous collector current, enabling effective handling of substantial load currents in power applications.
- High Collector-Emitter Voltage: With a maximum voltage rating of 100V, it ensures reliable operation in medium power switching circuits.
- Low Saturation Voltage: Minimizes conduction losses, improving overall efficiency and reducing heat generation in switching applications.
- TO-3 Metal Can Package: Enhances thermal management, allowing higher power dissipation and improved reliability in harsh operating conditions.
JANSR2N3440 Technical Specifications
| Parameter | Value |
|---|---|
| Transistor Type | NPN Silicon |
| Collector-Emitter Voltage (Vceo) | 100 V |
| Collector-Base Voltage (Vcbo) | 100 V |
| Emitter-Base Voltage (Vebo) | 5 V |
| Collector Current Continuous (Ic) | 15 A |
| Power Dissipation (Pc) | 125 W |
| Gain Bandwidth Product (fT) | ?? 5 MHz |
| DC Current Gain (hFE) | 8 to 40 (at Ic=4A) |
| Package Type | TO-3 Metal Can |
JANSR2N3440 Advantages vs Typical Alternatives
This transistor stands out with its high current rating and robust voltage tolerance, offering superior power handling compared to many standard NPN transistors. Its low saturation voltage reduces power dissipation, enhancing efficiency in power switching roles. The TO-3 package provides outstanding thermal conductivity, improving reliability and lifespan under continuous high power operation. These advantages make it a preferred choice for demanding industrial and amplifier circuit designs.
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Typical Applications
- Power Amplifiers: Ideal for audio and RF amplifiers requiring high current and voltage handling with reliable thermal performance.
- Motor Control Circuits: Suitable for controlling DC motors in industrial equipment due to its high current capacity and robust switching features.
- Power Switching: Used in power management circuits where efficient switching and heat dissipation are critical.
- Industrial Automation: Supports various load-driving roles requiring durable, high-power transistors.
JANSR2N3440 Brand Info
The JANSR2N3440 is part of a legacy series of power transistors produced by a reputable manufacturer known for stringent quality and reliability standards. Designed to meet military and industrial specifications, this transistor ensures consistent performance in challenging environments. Its long-standing availability and proven track record make it a trusted component for engineers focused on durability and efficiency in power semiconductor applications.
FAQ
What is the maximum collector current rating for this transistor?
The maximum continuous collector current rating is 15 amperes. This allows the transistor to handle substantial load currents typical in power amplification and switching applications.
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Can this transistor operate at high voltages safely?
Yes, it supports a collector-emitter voltage of up to 100 volts, making it suitable for medium voltage power circuits without risk of breakdown under normal operating conditions.
What package type does this device use, and why is it important?
The device comes in a TO-3 metal can package, which provides excellent heat dissipation and mechanical stability. This is crucial for maintaining reliable operation in high power and high temperature environments.
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How does the low saturation voltage benefit system performance?
A lower saturation voltage means the transistor dissipates less power when fully on, reducing thermal stress and improving overall energy efficiency in power switching and amplification circuits.
Is the gain bandwidth sufficient for high-frequency applications?
With a gain bandwidth product of at least 5 MHz, the transistor supports moderate frequency operation suitable for many audio and industrial control applications, though it may not be ideal for very high-frequency RF circuits.






