1N938B Semiconductor Diode

Product Overview

Category:

The 1N938B is a semiconductor diode belonging to the category of rectifier diodes.

Use:

It is commonly used in electronic circuits for rectification and voltage regulation purposes.

Characteristics:

Forward Voltage Drop: Typically around 0.7V
Reverse Voltage: Up to 200V
Current Rating: Varies based on specific model
Fast Switching Speed

Package:

The 1N938B is typically available in a DO-41 package, which is a cylindrical glass package with axial leads.

Essence:

The essence of the 1N938B diode lies in its ability to efficiently convert alternating current (AC) to direct current (DC) by allowing current flow in only one direction.

Packaging/Quantity:

It is commonly available in reels or bulk packaging, with quantities varying based on manufacturer and distributor specifications.

Specifications

Maximum Reverse Voltage: 200V
Average Forward Current: Varies based on specific model
Peak Surge Current: Typically specified by the manufacturer
Operating Temperature Range: -65°C to +175°C
Storage Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The 1N938B diode has two leads, an anode and a cathode. The anode is denoted by a longer lead or a notch on the diode body, while the cathode is marked with a shorter lead or a band on the diode body.

Functional Features

Rectification of AC to DC
Voltage Regulation
Fast Switching Speed

Advantages

Low forward voltage drop
High surge current capability
Compact and easy to use package

Disadvantages

Limited reverse voltage rating compared to other diodes
Sensitivity to temperature variations

Working Principles

The 1N938B operates based on the principle of creating a depletion region within the diode when a forward bias is applied, allowing current to flow in one direction. In reverse bias, the depletion region widens, preventing significant current flow.

Detailed Application Field Plans

The 1N938B diode finds applications in various electronic circuits including: - Power supplies - Voltage regulators - Rectifiers - Signal demodulation circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N938B diode include: - 1N4001 - 1N4148 - 1N5408 - 1N5819

In conclusion, the 1N938B semiconductor diode serves as a crucial component in electronic circuits, providing efficient rectification and voltage regulation capabilities. Its compact package and functional features make it suitable for a wide range of applications in the field of electronics.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 1N938B v technických řešeních

Sure, here are 10 common questions and answers related to the application of 1N938B in technical solutions:

What is 1N938B?
- 1N938B is a general-purpose silicon rectifier diode commonly used in electronic circuits for converting alternating current (AC) to direct current (DC).
What are the typical applications of 1N938B?
- 1N938B is commonly used in power supplies, voltage regulators, and other electronic devices where rectification of AC to DC is required.
What is the maximum forward current rating of 1N938B?
- The maximum forward current rating of 1N938B is typically around 3 amperes.
What is the maximum reverse voltage rating of 1N938B?
- The maximum reverse voltage rating of 1N938B is typically around 1000 volts.
Can 1N938B be used for high-frequency applications?
- No, 1N938B is not suitable for high-frequency applications due to its relatively slow recovery time.
What are the key characteristics of 1N938B?
- Some key characteristics of 1N938B include its low forward voltage drop, moderate forward current capability, and moderate reverse recovery time.
Is 1N938B suitable for use in switching power supplies?
- Yes, 1N938B can be used in low to moderate power switching applications in power supplies.
Can 1N938B be used in temperature-sensitive applications?
- Yes, 1N938B has a wide operating temperature range and can be used in temperature-sensitive applications within its specified limits.
What are the packaging options available for 1N938B?
- 1N938B is commonly available in through-hole packages such as DO-41 and surface-mount packages such as SMA.
Are there any common failure modes associated with 1N938B?
- Common failure modes for 1N938B include overcurrent conditions leading to thermal runaway and excessive reverse voltage leading to breakdown.

I hope these questions and answers provide a good overview of the application of 1N938B in technical solutions. Let me know if you need further information on this topic!