1N957B

Product Overview

Category

The 1N957B is a silicon Zener diode.

Use

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

Characteristics

• Forward Voltage: 1.2V
• Reverse Voltage: 6.8V
• Power Dissipation: 500mW
• Operating Temperature: -65°C to +200°C

Package

The 1N957B is typically available in a DO-35 glass package.

Packaging/Quantity

It is often sold in reels or tubes containing multiple units, with quantities varying based on supplier and customer requirements.

Specifications

• Zener Voltage: 6.8V
• Tolerance: ±5%
• Maximum Reverse Leakage Current: 5μA
• Maximum Zener Impedance: 40Ω

Detailed Pin Configuration

The 1N957B has two pins, with the cathode identified by a band around one end of the diode.

Functional Features

The 1N957B provides a stable voltage reference and protects circuits from overvoltage conditions by conducting when the voltage across it exceeds its specified breakdown voltage.

Advantages

• Precise voltage regulation
• Compact size
• Wide operating temperature range

Disadvantages

• Limited power dissipation capability
• Relatively low maximum reverse leakage current tolerance

Working Principles

When the voltage across the 1N957B exceeds its Zener voltage, it begins to conduct, effectively clamping the voltage to its rated value.

Detailed Application Field Plans

The 1N957B is commonly used in: - Voltage regulators - Overvoltage protection circuits - Signal clamping circuits

Detailed and Complete Alternative Models

Some alternative models to the 1N957B include: - 1N746A - 1N4736A - BZX55C6V8

In conclusion, the 1N957B is a silicon Zener diode that finds widespread use in voltage regulation and protection applications due to its precise voltage reference and compact size. While it offers advantages such as stable voltage regulation and wide operating temperature range, it has limitations in terms of power dissipation capability and maximum reverse leakage current tolerance. Understanding its specifications, pin configuration, functional features, and alternative models is essential for effective utilization in electronic circuits.

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