MF-R700-2

Product Overview

Category

The MF-R700-2 belongs to the category of resettable fuses, also known as PTC (positive temperature coefficient) thermistors.

Use

It is used to protect electrical circuits from overcurrent and short circuit conditions by limiting the flow of current in the event of a fault.

Characteristics

• Resettable: The MF-R700-2 can return to its normal state after the fault condition is removed.
• Self-Protecting: It does not require replacement after a fault condition, reducing maintenance costs.
• Fast Response Time: Quickly limits the current during fault conditions to prevent damage to the circuit.
• Compact Package: Designed for space-constrained applications.
• RoHS Compliant: Environmentally friendly and free from hazardous substances.

Package

The MF-R700-2 is typically available in tape and reel packaging for automated assembly. The standard quantity per reel is 1000 pieces.

Specifications

• Hold Current: 7A
• Trip Current: 14A
• Maximum Voltage: 30V
• Operating Temperature Range: -40°C to 85°C
• Resistance: <10mΩ

Detailed Pin Configuration

The MF-R700-2 features two terminals for connection to the circuit. The pin configuration is as follows: - Pin 1: Positive terminal - Pin 2: Negative terminal

Functional Features

• Overcurrent Protection: Limits the current flow in the event of an overcurrent condition.
• Self-Resetting: Returns to a low-resistance state once the fault is cleared.
• Reliable Operation: Provides consistent protection over multiple fault cycles.

Advantages and Disadvantages

Advantages

• Cost-Effective: Eliminates the need for frequent fuse replacements.
• Space-Saving: Compact design suitable for miniaturized electronic devices.
• Enhanced Safety: Protects circuits and components from damage due to overcurrent conditions.

Disadvantages

• Limited Voltage Rating: Not suitable for high-voltage applications exceeding 30V.
• Temperature Sensitivity: Performance may be affected at extreme temperatures.

Working Principles

The MF-R700-2 operates based on the PTC effect, where its resistance increases significantly when the current exceeds the trip threshold. This effectively limits the current flow, protecting the circuit.

Detailed Application Field Plans

The MF-R700-2 is commonly used in various electronic devices and equipment, including: - Consumer Electronics: Such as smartphones, tablets, and laptops. - Automotive Electronics: In vehicle control units and entertainment systems. - Industrial Equipment: Including power supplies, motor controls, and instrumentation.

Detailed and Complete Alternative Models

• MF-R500-2: Lower hold and trip currents for less demanding applications.
• MF-R900-2: Higher current ratings suitable for more robust circuit protection.

In conclusion, the MF-R700-2 resettable fuse offers reliable overcurrent protection with the added advantage of self-resetting functionality, making it a preferred choice for a wide range of electronic applications.

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