SMCJ28AHE3/9AT - Product Encyclopedia Entry

Introduction

The SMCJ28AHE3/9AT belongs to the category of semiconductor devices and is commonly used for voltage clamping applications in electronic circuits. This entry provides a comprehensive overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Semiconductor Devices
• Use: Voltage Clamping in Electronic Circuits
• Characteristics: High Voltage Tolerance, Fast Response Time
• Package: SMC (DO-214AB)
• Essence: Transient Voltage Suppressor (TVS) Diode
• Packaging/Quantity: Tape & Reel, 500 units per reel

Specifications

• Peak Pulse Power: 1500 W
• Breakdown Voltage: 28 V
• Clamping Voltage: 45.7 V
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The SMCJ28AHE3/9AT has a standard SMC package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Protects sensitive electronic components from voltage spikes.
• Fast Response Time: Quickly clamps transient voltages to safe levels.
• Low Leakage Current: Ensures minimal power dissipation during normal operation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Compact SMC package for space-constrained designs
• Fast response time for rapid clamping of transient voltages

Disadvantages

• Limited to specific breakdown and clamping voltages
• Requires careful consideration of operating conditions for optimal performance

Working Principles

The SMCJ28AHE3/9AT operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown voltage, thereby diverting the transient energy away from the protected circuit.

Detailed Application Field Plans

The SMCJ28AHE3/9AT is widely used in various electronic systems, including: - Power Supplies - Communication Equipment - Automotive Electronics - Industrial Control Systems - Consumer Electronics

Detailed and Complete Alternative Models

• Alternative Model 1: P6KE27CA
  • Breakdown Voltage: 27 V
  • Package: DO-15
• Alternative Model 2: SMBJ28A
  • Breakdown Voltage: 28 V
  • Package: SMB

In conclusion, the SMCJ28AHE3/9AT is a vital component in protecting electronic circuits from voltage transients, offering reliable performance and fast response times. Its compact package and high peak pulse power make it suitable for a wide range of applications across different industries.

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