MF-RX012/250-T-2

Product Overview

Category

The MF-RX012/250-T-2 belongs to the category of resettable fuses or PTC (Positive Temperature Coefficient) thermistors.

Use

It is used as a protection device in electronic circuits to limit overcurrent and prevent damage to sensitive components.

Characteristics

• Resettable fuse
• Low resistance in normal operating conditions
• High resistance when subjected to overcurrent
• Self-recoverable after fault condition is removed

Package

The MF-RX012/250-T-2 is typically packaged in tape and reel for automated assembly processes.

Essence

The essence of the MF-RX012/250-T-2 lies in its ability to provide overcurrent protection without the need for replacement after a fault condition.

Packaging/Quantity

It is commonly available in reels containing a quantity of 250 pieces.

Specifications

• Hold Current: 0.12A
• Trip Current: 0.25A
• Maximum Voltage: 30V
• Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

The MF-RX012/250-T-2 has two pins for connection in the circuit. The pin configuration is as follows: - Pin 1: Input/Anode - Pin 2: Output/Cathode

Functional Features

• Overcurrent protection
• Self-resetting capability
• Fast response time

Advantages

• Eliminates the need for replacement after a fault
• Suitable for applications requiring repetitive protection
• Compact and space-saving design

Disadvantages

• Limited voltage and current handling capabilities compared to traditional fuses
• May have higher initial cost compared to one-time use fuses

Working Principles

The MF-RX012/250-T-2 operates based on the PTC effect, where its resistance increases significantly when the current exceeds the trip current, effectively limiting the current flow through the circuit.

Detailed Application Field Plans

The MF-RX012/250-T-2 is commonly used in various electronic devices and systems, including: - Battery packs - USB power supplies - Motor control circuits - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to the MF-RX012/250-T-2 include: - MF-RX Series from Bourns - SMD2920P Series from Littelfuse - PRG Series from Amphenol

In conclusion, the MF-RX012/250-T-2 offers a reliable and convenient solution for overcurrent protection in electronic circuits, especially in applications where the self-resetting feature is advantageous. While it has limitations in terms of voltage and current handling, its benefits make it a preferred choice in many modern electronic designs.

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