SMF11A-HM3-18

Introduction

The SMF11A-HM3-18 is a diode belonging to the category of surface mount devices. It is commonly used for voltage clamping and transient suppression in electronic circuits. This entry provides an overview of its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Diode
• Use: Voltage clamping and transient suppression
• Characteristics: Surface mount, low leakage current, high surge capability
• Package: SOD-123FL
• Essence: Protection of sensitive electronic components from voltage spikes
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Part Number: SMF11A-HM3-18
• Voltage - Reverse Standoff (Typ): 11V
• Voltage - Breakdown (Min): 12.2V
• Voltage - Clamping (Max) @ Ipp: 18V
• Current - Peak Pulse (10/1000µs): 5.6A
• Power - Peak Pulse: 200W
• Type: Zener

Detailed Pin Configuration

The SMF11A-HM3-18 diode has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

• Transient Suppression: Effectively suppresses voltage transients to protect downstream components.
• Low Leakage Current: Minimizes power loss and ensures efficient operation.
• High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage spikes
• Compact surface mount design
• Low leakage current for energy efficiency

Disadvantages

• Limited voltage clamping capability compared to some higher-rated diodes
• Sensitive to reverse polarity connection

Working Principles

The SMF11A-HM3-18 operates based on the principle of Zener breakdown. When the voltage across the diode exceeds its breakdown voltage, it conducts current to limit the voltage and protect the circuit from damage due to transient events.

Detailed Application Field Plans

The SMF11A-HM3-18 is widely used in various electronic systems, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the SMF11A-HM3-18 diode include: - SMF5.0A - SMF7.5A - SMF15A - SMF24A

In conclusion, the SMF11A-HM3-18 diode is a crucial component for protecting sensitive electronic circuits from voltage transients. Its compact design, high surge capability, and low leakage current make it suitable for a wide range of applications in various industries.

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