Microsemi Corporation
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1PMT5945B/TR13
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1PMT5945B/TR13

Product Overview

Category:

1PMT5945B/TR13 belongs to the category of Zener diodes.

Use:

It is used for voltage regulation and protection in electronic circuits.

Characteristics:

  • Zener voltage: 3.9V
  • Power dissipation: 1.5W
  • Package type: SOD-123

Package:

The 1PMT5945B/TR13 is typically available in reels or tape and reel packaging.

Essence:

This Zener diode provides stable voltage regulation and protection against voltage spikes.

Packaging/Quantity:

The 1PMT5945B/TR13 is usually packaged in quantities of 3000 units per reel.

Specifications

  • Zener Voltage: 3.9V
  • Power Dissipation: 1.5W
  • Forward Voltage: 1.2V
  • Reverse Leakage Current: 5μA
  • Operating Temperature Range: -65°C to +150°C

Detailed Pin Configuration

The 1PMT5945B/TR13 Zener diode has two pins, with the cathode connected to the marked side of the package and the anode connected to the other side.

Functional Features

  • Voltage regulation: The Zener diode maintains a constant voltage across its terminals.
  • Overvoltage protection: It conducts when the voltage exceeds its breakdown voltage, protecting the circuitry downstream.

Advantages

  • Precise voltage regulation
  • Compact size
  • Low leakage current

Disadvantages

  • Limited power dissipation capability
  • Susceptible to temperature variations

Working Principles

The 1PMT5945B/TR13 operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased at its breakdown voltage.

Detailed Application Field Plans

The 1PMT5945B/TR13 is commonly used in: - Voltage regulators - Power supplies - Overvoltage protection circuits

Detailed and Complete Alternative Models

Some alternative models to 1PMT5945B/TR13 include: - BZX84C3V9LT1G - MMSZ5245BT1G - BZT52C3V9S-7-F

In conclusion, the 1PMT5945B/TR13 Zener diode is a crucial component in electronic circuits, providing stable voltage regulation and overvoltage protection. Its compact size and precise characteristics make it suitable for various applications in the electronics industry.

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기술 솔루션에 1PMT5945B/TR13 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is 1PMT5945B/TR13?

    • 1PMT5945B/TR13 is a Zener diode with a voltage of 15V and a power dissipation of 3W.

  2. What are the typical applications of 1PMT5945B/TR13?

    • It is commonly used in voltage regulation, surge protection, and overvoltage clamping in various electronic circuits.

  3. What is the maximum current rating for 1PMT5945B/TR13?

    • The maximum current rating for 1PMT5945B/TR13 is typically around 200mA.

  4. How does 1PMT5945B/TR13 provide overvoltage protection?

    • When the voltage across the diode exceeds its breakdown voltage (15V), it conducts and limits the voltage to protect the circuit.

  5. Can 1PMT5945B/TR13 be used in reverse bias?

    • Yes, it can be used in reverse bias as a regular Zener diode for voltage regulation purposes.

  6. What are the temperature specifications for 1PMT5945B/TR13?

    • The operating temperature range is typically -65°C to +175°C.

  7. Is 1PMT5945B/TR13 suitable for high-frequency applications?

    • It has a relatively fast response time and can be used in moderate frequency applications.

  8. What are the package dimensions for 1PMT5945B/TR13?

    • The standard package is a DO-216AA (SMB) surface mount package.

  9. Does 1PMT5945B/TR13 require any external components for operation?

    • It can be used independently but may require additional resistors or capacitors for specific applications.

  10. Are there any recommended layout considerations for using 1PMT5945B/TR13?

    • It is advisable to minimize trace lengths and keep the device close to the circuit it is protecting to reduce parasitic inductance and improve performance.