Microsemi Corporation
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1N821UR-1
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1N821UR-1

Product Overview

Category

The 1N821UR-1 belongs to the category of semiconductor devices.

Use

It is commonly used as a voltage regulator in electronic circuits.

Characteristics

  • Low dropout voltage
  • High accuracy
  • Compact size

Package

The 1N821UR-1 is typically available in a small outline transistor (SOT-23) package.

Essence

This product serves as a crucial component in stabilizing and regulating voltage in various electronic applications.

Packaging/Quantity

It is usually packaged in reels containing a specific quantity, such as 3000 units per reel.

Specifications

  • Input Voltage Range: 3V to 5.5V
  • Output Voltage: 1.8V
  • Maximum Output Current: 150mA
  • Dropout Voltage: 200mV at 100mA
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The 1N821UR-1 typically has three pins: 1. Input (Vin) 2. Ground (GND) 3. Output (Vout)

Functional Features

  • Precise voltage regulation
  • Thermal shutdown protection
  • Low quiescent current

Advantages

  • Small form factor
  • Wide operating temperature range
  • Low dropout voltage

Disadvantages

  • Limited maximum output current
  • Sensitive to voltage spikes

Working Principles

The 1N821UR-1 operates by comparing the reference voltage with the input voltage and adjusting the output to maintain a stable voltage level.

Detailed Application Field Plans

This component is widely used in portable electronic devices, battery-powered systems, and low-power applications where space and power efficiency are critical.

Detailed and Complete Alternative Models

  • 1N823UR-1
  • 1N825UR-1
  • 1N827UR-1

In conclusion, the 1N821UR-1 is a versatile voltage regulator with precise regulation capabilities, making it an essential component in various electronic circuits and applications.

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기술 솔루션에 1N821UR-1 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is 1N821UR-1?

    • 1N821UR-1 is a Zener diode with specific voltage regulation characteristics.

  2. What are the typical applications of 1N821UR-1?

    • It is commonly used in voltage regulation, surge protection, and voltage reference circuits.

  3. What is the voltage rating of 1N821UR-1?

    • The voltage rating of 1N821UR-1 is typically 5.6V.

  4. How does 1N821UR-1 provide voltage regulation?

    • 1N821UR-1 operates in the reverse-biased breakdown region, maintaining a nearly constant voltage drop across its terminals.

  5. Can 1N821UR-1 be used for overvoltage protection?

    • Yes, it can be used to protect sensitive components from overvoltage conditions by shunting excess voltage away from the protected circuit.

  6. What are the temperature specifications for 1N821UR-1?

    • 1N821UR-1 typically has a temperature coefficient of around -2mV/°C, making it suitable for stable voltage regulation over a range of temperatures.

  7. Is 1N821UR-1 suitable for low-power applications?

    • Yes, it is suitable for low-power applications due to its low leakage current and low dynamic resistance.

  8. What are the key differences between 1N821UR-1 and other Zener diodes?

    • 1N821UR-1 offers specific voltage regulation characteristics and temperature stability that may differ from other Zener diodes.

  9. Can 1N821UR-1 be used in series or parallel configurations?

    • Yes, it can be used in both series and parallel configurations to achieve higher voltage ratings or current-handling capabilities.

  10. Are there any precautions to consider when using 1N821UR-1 in technical solutions?

    • It's important to consider power dissipation, current limitations, and thermal management to ensure reliable operation within specified parameters.