SMBJ120 - Product Overview

Introduction

The SMBJ120 belongs to the category of transient voltage suppressor (TVS) diodes, which are widely used for protecting sensitive electronics from voltage spikes and transients. This entry provides a comprehensive overview of the SMBJ120, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

Category: Transient Voltage Suppressor (TVS) Diode
Use: Protecting sensitive electronics from voltage spikes and transients
Characteristics: Fast response time, low clamping voltage, high surge capability
Package: DO-214AA (SMB), SMD/SMT
Essence: Provides robust overvoltage protection
Packaging/Quantity: Tape & Reel (3,000 units)

Specifications

Part Number: SMBJ120A
Voltage - Reverse Standoff (Typ): 120V
Voltage - Breakdown: 133V
Clamping Voltage: 193V
Peak Pulse Current: 10A
Capacitance: 150pF
Polarity: Unidirectional

Detailed Pin Configuration

The SMBJ120 has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

Fast response time
Low clamping voltage
High surge capability
RoHS compliant

Advantages and Disadvantages

Advantages

Effective protection against voltage surges
Fast reaction time
Compact size for easy integration into circuit designs

Disadvantages

Unidirectional protection only
Limited peak pulse current handling capability

Working Principles

The SMBJ120 operates by diverting excess current away from sensitive electronic components when a voltage surge occurs. It rapidly clamps the voltage to a safe level, protecting the downstream circuitry.

Detailed Application Field Plans

The SMBJ120 is commonly used in various applications, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative TVS diode models to SMBJ120 include: - P6KE120A - 1.5SMC120A - SMCJ120A - P4SMA120A

In conclusion, the SMBJ120 transient voltage suppressor diode offers robust overvoltage protection with its fast response time, low clamping voltage, and high surge capability. While it has limitations such as unidirectional protection and peak pulse current handling, it remains a popular choice for safeguarding sensitive electronics across various industries.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van SMBJ120 in technische oplossingen

What is the SMBJ120?
- The SMBJ120 is a transient voltage suppressor diode designed to protect sensitive electronic components from voltage spikes and transients.
What is the maximum voltage rating of the SMBJ120?
- The SMBJ120 has a maximum voltage rating of 120 volts.
What is the typical application of the SMBJ120?
- The SMBJ120 is commonly used in various technical solutions to protect integrated circuits, power supplies, and other sensitive components from voltage surges and transients.
How does the SMBJ120 provide protection?
- The SMBJ120 clamps the voltage to a safe level when a transient event occurs, diverting excess current away from the protected circuitry.
What is the peak pulse power handling capability of the SMBJ120?
- The SMBJ120 can handle peak pulse power up to a specified level, typically around 600 watts.
Is the SMBJ120 suitable for overvoltage protection in automotive applications?
- Yes, the SMBJ120 is often used for overvoltage protection in automotive electronics due to its fast response time and high surge-handling capability.
Can the SMBJ120 be used in conjunction with other protective devices?
- Yes, the SMBJ120 can be used in combination with other protective devices such as fuses and varistors to provide comprehensive overvoltage protection.
What are the temperature considerations for the SMBJ120?
- The SMBJ120 operates within a specified temperature range, typically from -55°C to 150°C, ensuring reliable performance in various environments.
Are there any specific layout or mounting requirements for the SMBJ120?
- It is important to follow recommended layout guidelines and ensure proper mounting to optimize the performance of the SMBJ120 in a given application.
Where can I find detailed specifications and application notes for the SMBJ120?
- Detailed specifications and application notes for the SMBJ120 can be found in the product datasheet provided by the manufacturer or on their official website.