RUEF700K-2

Introduction

The RUEF700K-2 is a vital component belonging to the category of resettable fuses. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Resettable Fuse
• Use: Overcurrent Protection
• Characteristics: Resettable, Low Resistance
• Package: SMD (Surface Mount Device)
• Essence: Protects Circuits from Overcurrent
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Voltage Rating: 30V
• Current Rating: 7A
• Hold Current: 3.5A
• Trip Current: 7A
• Operating Temperature: -40°C to 85°C
• Resistance: <0.02Ω

Detailed Pin Configuration

The RUEF700K-2 features a standard SMD pin configuration with two terminals for surface mounting onto circuit boards.

Functional Features

• Resettable: Automatically resets after the fault condition is removed
• Low Resistance: Minimizes power loss in normal operation
• Overcurrent Protection: Safeguards circuits from excessive current flow

Advantages and Disadvantages

Advantages

1. Automatic Resetting
2. Low Power Dissipation
3. Reliable Overcurrent Protection

Disadvantages

1. Limited Voltage Rating
2. Sensitive to High Surge Currents

Working Principles

The RUEF700K-2 operates based on the principle of PTC (Positive Temperature Coefficient). When an overcurrent condition occurs, the device heats up, causing its resistance to increase and limit the current flow. Once the fault is removed, the device cools down and returns to its low-resistance state.

Detailed Application Field Plans

The RUEF700K-2 is widely used in various electronic devices and systems, including: - Consumer Electronics - Automotive Electronics - Industrial Control Systems - Telecommunication Equipment

Detailed and Complete Alternative Models

1. RUEF900K-2: Higher voltage rating (40V)
2. RUEF500K-2: Lower current rating (5A)
3. RUEF700K-4: Dual-channel version for parallel protection

In conclusion, the RUEF700K-2 resettable fuse offers reliable overcurrent protection with its resettable nature and low resistance. While it has limitations in voltage rating and surge current sensitivity, it finds extensive applications across diverse electronic fields.

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