UNR921NJ0L

Product Overview

Category: Transistor
Use: Amplification and switching in electronic circuits
Characteristics: NPN bipolar junction transistor, high voltage and current capability
Package: TO-92 package
Essence: High-performance amplifier and switch
Packaging/Quantity: Typically sold in reels of 2000 units

Specifications

• Maximum Collector-Emitter Voltage: 300V
• Maximum Collector Current: 800mA
• Power Dissipation: 625mW
• Transition Frequency: 250MHz
• Gain: 100-300

Detailed Pin Configuration

1. Emitter (E)
2. Base (B)
3. Collector (C)

Functional Features

• High voltage and current capability
• Fast switching speed
• Low noise and distortion
• Wide frequency response

Advantages and Disadvantages

Advantages: - High voltage and current ratings - Suitable for high-frequency applications - Low noise and distortion

Disadvantages: - Relatively low gain compared to some alternatives - Sensitive to temperature variations

Working Principles

The UNR921NJ0L operates based on the principles of bipolar junction transistors. When a small current flows into the base terminal, it controls a much larger current between the collector and emitter terminals, allowing for amplification or switching of electronic signals.

Detailed Application Field Plans

The UNR921NJ0L is commonly used in audio amplifiers, high-frequency signal amplification, and switching circuits. Its high voltage and current capabilities make it suitable for applications requiring robust performance.

Detailed and Complete Alternative Models

• BC547: Similar NPN transistor with lower voltage and current ratings
• 2N3904: General-purpose NPN transistor with lower power dissipation
• MPS2222A: NPN transistor with similar characteristics but in a different package

This completes the entry for UNR921NJ0L, covering its product details, specifications, features, and application information within the specified word count.