2n4920 Datasheet

The 2n4920 Datasheet is a crucial document for anyone working with this specific type of unijunction transistor (UJT). It provides all the essential electrical characteristics, performance specifications, and application information needed to properly use and design circuits around the 2N4920. Understanding the 2n4920 Datasheet is key to successful circuit design.

Decoding the 2n4920 Datasheet A Comprehensive Guide

A datasheet, in essence, is a manufacturer-provided document that details everything you need to know about a particular electronic component. For the 2N4920, the datasheet outlines its key parameters, such as its peak point voltage (Vp), valley point voltage (Vv), intrinsic standoff ratio (η), and interbase resistance (RBB). These parameters are critical for determining how the 2N4920 will behave in different circuit conditions. Without this information, designing a reliable and functional circuit is nearly impossible. Essentially, the datasheet is the bible for this component ensuring it performs as expected.

The 2N4920 is a programmable unijunction transistor (PUT). Understanding how to program the PUT requires a thorough study of the datasheet. The 2N4920 datasheet includes multiple graphs and charts demonstrating how the device behaves under different operating conditions and different temperatures. It can be used in relaxation oscillators, triggering circuits, and voltage sensors, the 2N4920’s versatility stems from its unique characteristics. The datasheet not only provides the min, max and typical values, it also provides graphs to show the variance with temperature. These include:

  • Peak Point Voltage vs. Temperature
  • Valley Point Voltage vs. Temperature
  • Intrinsic Standoff Ratio vs. Temperature

Datasheets aren’t just for understanding the basics; they’re vital for ensuring long-term reliability. They include absolute maximum ratings. Exceeding these ratings, even momentarily, can permanently damage the 2N4920, leading to circuit failure. Datasheets also provide information on storage temperature, soldering recommendations, and other factors that can affect the device’s lifespan. Understanding these considerations is essential for designing robust and durable electronic systems. Let’s look at a simple table:

Parameter Symbol Value Unit
Emitter Reverse Voltage VEB2 30 V
Gate Reverse Voltage VGB2 30 V
Gate Forward Current IGF 50 mA

For the most accurate and detailed information, it’s crucial to refer to the official 2n4920 Datasheet from a reputable manufacturer. Avoid relying on incomplete or outdated information from untrustworthy sources. The datasheet is your first and most important resource when working with the 2n4920.