MF-R250-2-10-99

Product Overview

Category

The MF-R250-2-10-99 belongs to the category of resettable fuses, also known as PTC (positive temperature coefficient) thermistors.

Use

These resettable fuses are used to protect electrical circuits from overcurrent and short circuit conditions. They provide a self-recovery feature, which allows them to return to their normal state once the fault is removed.

Characteristics

• Resettable: The fuse resets itself after the fault is cleared.
• Temperature-sensitive: The resistance of the fuse increases with temperature, providing protection against overcurrent conditions.
• Compact: Small form factor suitable for various electronic applications.

Package

The MF-R250-2-10-99 is typically packaged in tape and reel format for automated assembly processes. It is available in quantities suitable for both prototyping and mass production.

Specifications

• Hold Current: 2A
• Trip Current: 4A
• Voltage Rating: 30V
• Operating Temperature: -40°C to 85°C
• Resistance: 0.1 ohms

Detailed Pin Configuration

The MF-R250-2-10-99 has two terminals for connection within the circuit. The pin configuration is as follows: - Pin 1: Input/Anode - Pin 2: Output/Cathode

Functional Features

• Overcurrent Protection: Automatically limits the current flow during overcurrent conditions.
• Self-Recovery: Returns to normal operation once the fault is removed.
• Reliable Operation: Provides consistent protection over multiple fault cycles.

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 events.

Disadvantages

• Trip Time: May have a slightly longer trip time compared to traditional fuses.
• Temperature Sensitivity: Performance may vary in extreme temperature conditions.

Working Principles

The MF-R250-2-10-99 operates based on the PTC effect, where its resistance increases with temperature. During normal operation, the resistance is low, allowing current flow. In the event of an overcurrent condition, the temperature rises, causing the 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 MF-R250-2-10-99 is commonly used in various electronic applications, including: - Consumer Electronics: Such as smartphones, tablets, and laptops. - Automotive Electronics: Providing overcurrent protection in vehicle systems. - Industrial Equipment: Safeguarding control circuits and power supplies.

Detailed and Complete Alternative Models

• MF-R050-0-99: Lower hold current for more sensitive applications.
• MF-R500-2-99: Higher hold and trip currents for heavy-duty protection.

In conclusion, the MF-R250-2-10-99 resettable fuse offers reliable overcurrent protection with its self-recovery feature, making it suitable for a wide range of electronic applications.

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