1N4737PE3/TR8 - Semiconductor Diode

Basic Information Overview

• Category: Semiconductor Diode
• Use: Voltage Regulation
• Characteristics: Zener Diode, 1W Power Dissipation, 7.5V Nominal Zener Voltage
• Package: DO-41
• Essence: Regulates voltage by acting as a precision breakdown voltage reference
• Packaging/Quantity: Available in tape and reel packaging, quantity varies by supplier

Specifications

• Manufacturer: ON Semiconductor
• Part Number: 1N4737PE3/TR8
• Voltage - Zener (Nom) (Vz): 7.5V
• Power - Max: 1W
• Impedance (Max) (Zzt): 20 Ohm
• Current - Reverse Leakage @ Vr: 5µA @ 5.25V
• Operating Temperature: -65°C ~ 200°C
• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial
• Supplier Device Package: DO-41
• Other Names: 1N4737PE3, 1N4737PE3GOS-ND, 1N4737PE3GOSDICT-ND

Detailed Pin Configuration

The 1N4737PE3/TR8 is a two-terminal device with an anode and a cathode. In the DO-41 package, the anode is denoted by a band on one end of the diode, while the cathode is located at the other end.

Functional Features

The 1N4737PE3/TR8 is designed to maintain a constant voltage across its terminals when reverse biased. It exhibits a sharp breakdown voltage characteristic, making it suitable for voltage regulation and overvoltage protection applications.

Advantages and Disadvantages

• Advantages:
  • Precise voltage regulation
  • High power dissipation capability
  • Compact and easy to use
• Disadvantages:
  • Limited voltage options available
  • Susceptible to thermal runaway under certain conditions

Working Principles

When the voltage across the 1N4737PE3/TR8 exceeds its nominal zener voltage, it begins to conduct in the reverse direction, effectively clamping the voltage to the zener voltage level. This behavior allows it to regulate voltage in electronic circuits.

Detailed Application Field Plans

The 1N4737PE3/TR8 finds application in various voltage regulation scenarios, including: - Voltage stabilizers - Overvoltage protection circuits - Voltage reference sources - Voltage clamping circuits

Detailed and Complete Alternative Models

• 1N4736A: 6.2V Zener Voltage, 1W Power Dissipation
• 1N4738A: 8.2V Zener Voltage, 1W Power Dissipation
• 1N4740A: 10V Zener Voltage, 1W Power Dissipation
• BZX85C7V5: 7.5V Zener Voltage, 1.3W Power Dissipation

This completes the entry for the 1N4737PE3/TR8 semiconductor diode, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.